diff --git a/.claude/settings.local.json b/.claude/settings.local.json index c314aeda..ee8f98b9 100644 --- a/.claude/settings.local.json +++ b/.claude/settings.local.json @@ -21,7 +21,13 @@ "Bash(cat:*)", "Bash(./cache-metrics.sh:*)", "Bash(./cache-metrics-worst-case.sh:*)", - "Bash(./rerum-metrics.sh:*)" + "Bash(./rerum-metrics.sh:*)", + "Bash(/tmp/test_cache.sh:*)", + "Bash(/tmp/test_cache_timing.sh:*)", + "Bash(/tmp/immediate_test.sh)", + "Bash(/tmp/cache_stress_test.sh)", + "Bash(python3:*)", + "Bash(/tmp/focused_race_test.sh)" ], "deny": [], "ask": [] diff --git a/.github/workflows/claude.yaml b/.github/workflows/claude.yaml index bc5f54f6..1d253ced 100644 --- a/.github/workflows/claude.yaml +++ b/.github/workflows/claude.yaml @@ -12,10 +12,11 @@ on: jobs: claude: if: | - (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) || + (github.event.pull_request.draft == false) && + ((github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) || (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) || (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) || - (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude'))) + (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))) runs-on: ubuntu-latest permissions: contents: write diff --git a/cache/__tests__/cache-limits.test.js b/cache/__tests__/cache-limits.test.js new file mode 100644 index 00000000..ea2ce504 --- /dev/null +++ b/cache/__tests__/cache-limits.test.js @@ -0,0 +1,356 @@ +/** + * Cache limit enforcement tests for PM2 Cluster Cache + * Verifies maxLength, maxBytes, and TTL limits are properly configured and enforced + * @author thehabes + */ + +// Ensure cache runs in local mode (not PM2 cluster) for tests +// This must be set before importing cache to avoid IPC timeouts +delete process.env.pm_id + +import { jest } from '@jest/globals' +import cache from '../index.js' + +/** + * Helper to wait for cache operations to complete + */ +async function waitForCache(ms = 100) { + return new Promise(resolve => setTimeout(resolve, ms)) +} + +/** + * Helper to get actual cache size from PM2 cluster cache + */ +async function getCacheSize() { + try { + const keysMap = await cache.clusterCache.keys() + const uniqueKeys = new Set() + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + instanceKeys.forEach(key => { + if (!key.startsWith('_stats_worker_')) { + uniqueKeys.add(key) + } + }) + } + } + return uniqueKeys.size + } catch (err) { + return cache.allKeys.size + } +} + +/** + * Configuration test data for parameterized tests + * Each entry defines: property name, default value, and environment variable + */ +const cacheConfigTests = [ + { + property: 'maxLength', + defaultValue: 1000, + envVar: 'CACHE_MAX_LENGTH', + description: 'maximum number of cached entries' + }, + { + property: 'maxBytes', + defaultValue: 1000000000, + envVar: 'CACHE_MAX_BYTES', + description: 'maximum cache size in bytes (1GB)' + }, + { + property: 'ttl', + defaultValue: 86400000, + envVar: 'CACHE_TTL', + description: 'time-to-live in milliseconds (24 hours)' + } +] + +describe('Cache TTL (Time-To-Live) Limit Enforcement', () => { + beforeEach(async () => { + await cache.clear() + await waitForCache(100) + }, 10000) + + afterEach(async () => { + // Clean up stats interval to prevent hanging processes + if (cache.statsInterval) { + clearInterval(cache.statsInterval) + cache.statsInterval = null + } + await cache.clear() + }, 10000) + + it('should respect default TTL from constructor', async () => { + const key = cache.generateKey('id', `default-ttl-${Date.now()}`) + + await cache.set(key, { data: 'uses default ttl' }) + await waitForCache(200) // Increased for CI/CD environment + + // Should exist within TTL (uses configured default from cache/index.js) + const value = await cache.get(key) + expect(value).toEqual({ data: 'uses default ttl' }) + + // Verify TTL configuration directly on cache object (avoid getStats() timeout) + const expectedTTL = parseInt(process.env.CACHE_TTL ?? 86400000) + expect(cache.ttl).toBe(expectedTTL) + }) + + it('should enforce TTL across different cache key types', async () => { + const shortTTL = 800 + const testId = Date.now() + + // Set entries with short TTL + await cache.set( + cache.generateKey('query', { type: 'Test', testId }), + [{ id: 1 }], + shortTTL + ) + await cache.set( + cache.generateKey('search', { searchText: 'test', testId }), + [{ id: 2 }], + shortTTL + ) + await cache.set( + cache.generateKey('id', `ttl-${testId}`), + { id: 3 }, + shortTTL + ) + await waitForCache(50) + + // All should exist initially + expect(await cache.get(cache.generateKey('query', { type: 'Test', testId }))).toBeTruthy() + expect(await cache.get(cache.generateKey('search', { searchText: 'test', testId }))).toBeTruthy() + expect(await cache.get(cache.generateKey('id', `ttl-${testId}`))).toBeTruthy() + + // Wait for TTL to expire + await new Promise(resolve => setTimeout(resolve, shortTTL + 300)) + + // All should be expired + expect(await cache.get(cache.generateKey('query', { type: 'Test', testId }))).toBeNull() + expect(await cache.get(cache.generateKey('search', { searchText: 'test', testId }))).toBeNull() + expect(await cache.get(cache.generateKey('id', `ttl-${testId}`))).toBeNull() + }, 8000) +}) + +describe('Cache maxLength Limit Enforcement', () => { + beforeEach(async () => { + await cache.clear() + await waitForCache(100) + }, 10000) + + afterEach(async () => { + // Clean up stats interval to prevent hanging processes + if (cache.statsInterval) { + clearInterval(cache.statsInterval) + cache.statsInterval = null + } + await cache.clear() + }, 10000) + + it('should track current cache length', async () => { + const testId = Date.now() + + // Add entries + await cache.set(cache.generateKey('id', `len-1-${testId}`), { id: 1 }) + await cache.set(cache.generateKey('id', `len-2-${testId}`), { id: 2 }) + await cache.set(cache.generateKey('id', `len-3-${testId}`), { id: 3 }) + await waitForCache(250) + + // Check that length is tracked via allKeys (reliable method) + expect(cache.allKeys.size).toBeGreaterThanOrEqual(3) + }) + + it('should enforce maxLength limit with LRU eviction', async () => { + // Save original limit + const originalMaxLength = cache.maxLength + + // Set very low limit for testing + cache.maxLength = 5 + const testId = Date.now() + + try { + // Add 5 entries (should all fit) + for (let i = 1; i <= 5; i++) { + await cache.set(cache.generateKey('id', `limit-${testId}-${i}`), { id: i }) + await waitForCache(50) + } + + // Check we have 5 entries + const sizeAfter5 = await getCacheSize() + expect(sizeAfter5).toBeLessThanOrEqual(5) + + // Add 6th entry - should trigger eviction + await cache.set(cache.generateKey('id', `limit-${testId}-6`), { id: 6 }) + await waitForCache(100) + + // Should still be at or under limit (eviction enforced) + const sizeAfter6 = await getCacheSize() + expect(sizeAfter6).toBeLessThanOrEqual(5) + + // Verify limit is being enforced (size didn't grow beyond maxLength) + expect(sizeAfter6).toBe(sizeAfter5) // Size stayed the same despite adding entry + } finally { + // Restore original limit + cache.maxLength = originalMaxLength + } + }, 10000) +}) + +describe('Cache maxBytes Limit Enforcement', () => { + beforeEach(async () => { + await cache.clear() + await waitForCache(100) + }, 10000) + + afterEach(async () => { + // Clean up stats interval to prevent hanging processes + if (cache.statsInterval) { + clearInterval(cache.statsInterval) + cache.statsInterval = null + } + await cache.clear() + }, 10000) + + it('should enforce maxBytes limit with LRU eviction', async () => { + // Save original limits + const originalMaxBytes = cache.maxBytes + const originalMaxLength = cache.maxLength + + // Set very low byte limit for testing + cache.maxBytes = 5000 // 5KB + cache.maxLength = 100 // High enough to not interfere + const testId = Date.now() + + try { + // Create a large object (approximately 2KB each) + const largeObject = { + id: 1, + data: 'x'.repeat(1000), + timestamp: Date.now() + } + + // Calculate approximate size + const approxSize = cache._calculateSize(largeObject) + const maxEntries = Math.floor(cache.maxBytes / approxSize) + + // Add more entries than should fit + const entriesToAdd = maxEntries + 3 + for (let i = 1; i <= entriesToAdd; i++) { + await cache.set( + cache.generateKey('id', `bytes-${testId}-${i}`), + { ...largeObject, id: i } + ) + await waitForCache(50) + } + + // Wait a bit for evictions to process + await waitForCache(500) + + // Check that cache size is under limit (eviction enforced) + const finalSize = await getCacheSize() + expect(finalSize).toBeLessThanOrEqual(maxEntries) + + // Verify bytes didn't grow unbounded + expect(cache.totalBytes).toBeLessThanOrEqual(cache.maxBytes) + } finally { + // Restore original limits + cache.maxBytes = originalMaxBytes + cache.maxLength = originalMaxLength + } + }, 20000) +}) + +describe('Cache Limit Breaking Change Detection', () => { + it('should have valid limit configuration and respect environment variables', () => { + // Verify cache respects env vars if set, or uses reasonable defaults + const expectedMaxLength = parseInt(process.env.CACHE_MAX_LENGTH ?? 1000) + const expectedMaxBytes = parseInt(process.env.CACHE_MAX_BYTES ?? 1000000000) + const expectedTTL = parseInt(process.env.CACHE_TTL ?? 86400000) + + expect(cache.maxLength).toBe(expectedMaxLength) + expect(cache.maxBytes).toBe(expectedMaxBytes) + expect(cache.ttl).toBe(expectedTTL) + + // Verify limits are positive and reasonable + expect(cache.maxLength).toBeGreaterThan(0) + expect(cache.maxLength).toBeLessThan(10000) // < 10 thousand + + expect(cache.maxBytes).toBeGreaterThan(0) + expect(cache.maxBytes).toBeLessThan(10000000000) // < 10GB + + expect(cache.ttl).toBeGreaterThan(0) + expect(cache.ttl).toBeLessThanOrEqual(86400000) // ≤ 24 hours + }) + + it('should correctly calculate size for deeply nested query objects', async () => { + await cache.clear() + + // Create queries with deeply nested properties (5+ levels) + const deeplyNestedQuery = cache.generateKey('query', { + __cached: { + 'level1.level2.level3.level4.level5': 'deepValue', + 'body.target.source.metadata.author.name': 'John Doe', + 'nested.array.0.property.value': 123 + }, + limit: 100, + skip: 0 + }) + + // Create a large result set with nested objects + const nestedResults = Array.from({ length: 50 }, (_, i) => ({ + id: `obj${i}`, + level1: { + level2: { + level3: { + level4: { + level5: 'deepValue', + additionalData: new Array(100).fill('x').join('') + } + } + } + }, + body: { + target: { + source: { + metadata: { + author: { + name: 'John Doe', + email: 'john@example.com' + } + } + } + } + } + })) + + await cache.set(deeplyNestedQuery, nestedResults) + + // Verify the cache entry exists + expect(await cache.get(deeplyNestedQuery)).not.toBeNull() + + // Add more deeply nested queries until we approach maxBytes + const queries = [] + for (let i = 0; i < 10; i++) { + const key = cache.generateKey('query', { + __cached: { + [`level1.level2.level3.property${i}`]: `value${i}`, + 'deep.nested.structure.array.0.id': i + }, + limit: 100, + skip: 0 + }) + queries.push(key) + await cache.set(key, nestedResults) + } + + // Verify cache entries exist - check a few queries to confirm caching works + expect(await cache.get(deeplyNestedQuery)).not.toBeNull() + expect(await cache.get(queries[queries.length - 1])).not.toBeNull() + + // Verify maxBytes enforcement: cache operations should continue working + // even if some entries were evicted due to byte limits + const midpoint = Math.floor(queries.length / 2) + expect(await cache.get(queries[midpoint])).toBeTruthy() + }) +}) + diff --git a/cache/__tests__/cache-metrics-worst-case.sh b/cache/__tests__/cache-metrics-worst-case.sh new file mode 100644 index 00000000..8d0b5984 --- /dev/null +++ b/cache/__tests__/cache-metrics-worst-case.sh @@ -0,0 +1,2245 @@ +#!/bin/bash + +################################################################################ +# RERUM Cache WORST-CASE Scenario Performance Test +# +# Tests worst-case cache overhead focusing on O(n) write invalidation scanning. +# +# KEY INSIGHT: Cache uses O(1) hash lookups for reads (cache size irrelevant), +# but O(n) scanning for write invalidations (scales with cache size). +# +# This test measures the O(n) invalidation overhead when writes must scan +# a full cache (1000 entries) but find NO matches (pure wasted scanning). +# +# Produces: +# - cache/docs/CACHE_METRICS_WORST_CASE_REPORT.md (performance analysis) +# - cache/docs/CACHE_METRICS_WORST_CASE.log (terminal output capture) +# +# Author: thehabes +# Date: January 2025 +################################################################################ + +BASE_URL="${BASE_URL:-http://localhost:3001}" +API_BASE="${BASE_URL}/v1" +AUTH_TOKEN="" + +CACHE_FILL_SIZE=1000 +WARMUP_ITERATIONS=20 +NUM_WRITE_TESTS=100 + +RED='\033[0;31m' +GREEN='\033[0;32m' +YELLOW='\033[1;33m' +BLUE='\033[0;34m' +CYAN='\033[0;36m' +MAGENTA='\033[0;35m' +NC='\033[0m' + +TOTAL_TESTS=0 +PASSED_TESTS=0 +FAILED_TESTS=0 +SKIPPED_TESTS=0 + +declare -A ENDPOINT_COLD_TIMES +declare -A ENDPOINT_WARM_TIMES +declare -A ENDPOINT_STATUS +declare -A ENDPOINT_DESCRIPTIONS + +declare -a CREATED_IDS=() +declare -A CREATED_OBJECTS + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)" +REPORT_FILE="$REPO_ROOT/cache/docs/CACHE_METRICS_WORST_CASE_REPORT.md" +LOG_FILE="$REPO_ROOT/cache/docs/CACHE_METRICS_WORST_CASE.log" + +################################################################################ +# Helper Functions +################################################################################ + +log_header() { + echo "" + echo -e "${CYAN}═══════════════════════════════════════════════════════════════════════${NC}" + echo -e "${CYAN} $1${NC}" + echo -e "${CYAN}═══════════════════════════════════════════════════════════════════════${NC}" + echo "" +} + +log_section() { + echo "" + echo -e "${MAGENTA}▓▓▓ $1 ▓▓▓${NC}" + echo "" +} + +log_info() { + echo -e "${BLUE}[INFO]${NC} $1" +} + +log_success() { + echo -e "${GREEN}[PASS]${NC} $1" + ((PASSED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_failure() { + echo -e "${RED}[FAIL]${NC} $1" + ((FAILED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_skip() { + echo -e "${YELLOW}[SKIP]${NC} $1" + ((SKIPPED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_warning() { + echo -e "${YELLOW}[WARN]${NC} $1" +} + +log_overhead() { + local overhead=$1 + shift # Remove first argument, rest is the message + local message="$@" + + if [ $overhead -le 0 ]; then + echo -e "${GREEN}[PASS]${NC} $message" + else + echo -e "${YELLOW}[PASS]${NC} $message" + fi +} + +check_wsl2_time_sync() { + # Check if running on WSL2 + if grep -qEi "(Microsoft|WSL)" /proc/version &> /dev/null; then + log_info "WSL2 detected - checking system time synchronization..." + + # Try to sync hardware clock to system time (requires sudo) + if command -v hwclock &> /dev/null; then + if sudo -n hwclock -s &> /dev/null 2>&1; then + log_success "System time synchronized with hardware clock" + else + log_warning "Could not sync hardware clock (sudo required)" + log_info "To fix clock skew issues, run: sudo hwclock -s" + log_info "Continuing anyway - some timing measurements may show warnings" + fi + else + log_info "hwclock not available - skipping time sync" + fi + fi +} + +# Check server connectivity +check_server() { + log_info "Checking server connectivity at ${BASE_URL}..." + if ! curl -s -f "${BASE_URL}" > /dev/null 2>&1; then + echo -e "${RED}ERROR: Cannot connect to server at ${BASE_URL}${NC}" + echo "Please start the server with: npm start" + exit 1 + fi + log_success "Server is running at ${BASE_URL}" +} + +# Get bearer token from user +get_auth_token() { + log_header "Authentication Setup" + + echo "" + echo "This test requires a valid Auth0 bearer token to test write operations." + echo "Please obtain a fresh token from: https://devstore.rerum.io/" + echo "" + echo "Remember to delete your created junk and deleted junk. Run the following commands" + echo "with mongosh for whatever MongoDB you are writing into:" + echo "" + echo " db.alpha.deleteMany({\"__rerum.generatedBy\": \"YOUR_BEARER_AGENT\"});" + echo " db.alpha.deleteMany({\"__deleted.object.__rerum.generatedBy\": \"YOUR_BEARER_AGENT\"});" + echo "" + echo -n "Enter your bearer token (or press Enter to skip): " + read -r AUTH_TOKEN + + if [ -z "$AUTH_TOKEN" ]; then + echo -e "${RED}ERROR: No token provided. Cannot proceed with testing.${NC}" + echo "Tests require authentication for write operations (create, update, delete)." + exit 1 + fi + + # Validate JWT format (3 parts separated by dots) + log_info "Validating token..." + if ! echo "$AUTH_TOKEN" | grep -qE '^[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+$'; then + echo -e "${RED}ERROR: Token is not a valid JWT format${NC}" + echo "Expected format: header.payload.signature" + exit 1 + fi + + # Extract and decode payload (second part of JWT) + local payload=$(echo "$AUTH_TOKEN" | cut -d. -f2) + # Add padding if needed for base64 decoding + local padded_payload="${payload}$(printf '%*s' $((4 - ${#payload} % 4)) '' | tr ' ' '=')" + local decoded_payload=$(echo "$padded_payload" | base64 -d 2>/dev/null) + + if [ -z "$decoded_payload" ]; then + echo -e "${RED}ERROR: Failed to decode JWT payload${NC}" + exit 1 + fi + + # Extract expiration time (exp field in seconds since epoch) + local exp=$(echo "$decoded_payload" | grep -o '"exp":[0-9]*' | cut -d: -f2) + + if [ -z "$exp" ]; then + echo -e "${YELLOW}WARNING: Token does not contain 'exp' field${NC}" + echo "Proceeding anyway, but token may be rejected by server..." + else + local current_time=$(date +%s) + if [ "$exp" -lt "$current_time" ]; then + echo -e "${RED}ERROR: Token is expired${NC}" + echo "Token expired at: $(date -d @$exp)" + echo "Current time: $(date -d @$current_time)" + echo "Please obtain a fresh token from: https://devstore.rerum.io/" + exit 1 + else + local time_remaining=$((exp - current_time)) + local hours=$((time_remaining / 3600)) + local minutes=$(( (time_remaining % 3600) / 60 )) + log_success "Token is valid (expires in ${hours}h ${minutes}m)" + fi + fi +} + +# Measure endpoint performance +measure_endpoint() { + local endpoint=$1 + local method=$2 + local data=$3 + local description=$4 + local needs_auth=${5:-false} + local timeout=${6:-10} # Allow custom timeout, default 30 seconds + + local start=$(date +%s%3N) + if [ "$needs_auth" == "true" ]; then + local response=$(curl -s --max-time $timeout -w "\n%{http_code}" -X "$method" "${endpoint}" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + ${data:+-d "$data"} 2>/dev/null) + else + local response=$(curl -s --max-time $timeout -w "\n%{http_code}" -X "$method" "${endpoint}" \ + -H "Content-Type: application/json" \ + ${data:+-d "$data"} 2>/dev/null) + fi + local end=$(date +%s%3N) + local time=$((end - start)) + local http_code=$(echo "$response" | tail -n1) + local response_body=$(echo "$response" | head -n-1) + + # Validate timing (protect against clock skew/adjustment) + if [ "$time" -lt 0 ]; then + # Clock went backward during operation + local negative_time=$time # Preserve negative value for logging + + # Check if HTTP request actually succeeded before treating as error + if [ -z "$http_code" ] || [ "$http_code" == "000" ]; then + # No HTTP code at all - actual timeout/failure + http_code="000" + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} $endpoint" >&2 + echo -e " Start: ${start}ms, End: ${end}ms, Calculated: ${negative_time}ms (NEGATIVE!)" >&2 + echo -e " HTTP Code: ${RED}${http_code} (NO RESPONSE)${NC}" >&2 + echo -e " ${RED}Result: Actual timeout/connection failure${NC}" >&2 + time=0 + else + # HTTP succeeded but timing is invalid - use 0ms as placeholder + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} $endpoint" >&2 + echo -e " Start: ${start}ms, End: ${end}ms, Calculated: ${negative_time}ms (NEGATIVE!)" >&2 + echo -e " HTTP Code: ${GREEN}${http_code} (SUCCESS)${NC}" >&2 + echo -e " ${GREEN}Result: Operation succeeded, timing unmeasurable${NC}" >&2 + echo "0|$http_code|clock_skew" + return + fi + fi + + # Handle curl failure (connection timeout, etc) - only if we have no HTTP code + if [ -z "$http_code" ]; then + http_code="000" + # Log to stderr to avoid polluting the return value + echo "[WARN] Endpoint $endpoint timed out or connection failed" >&2 + fi + + echo "$time|$http_code|$response_body" +} + +# Clear cache +clear_cache() { + log_info "Clearing cache..." + + # Retry up to 3 times to handle concurrent cache population + local max_attempts=3 + local attempt=1 + local cache_length="" + + while [ $attempt -le $max_attempts ]; do + curl -s -X POST "${API_BASE}/api/cache/clear" > /dev/null 2>&1 + + # Sanity check: Verify cache is actually empty (use fast version - no need to wait for full sync) + local stats=$(get_cache_stats_fast) + cache_length=$(echo "$stats" | jq -r '.length' 2>/dev/null || echo "unknown") + + if [ "$cache_length" = "0" ]; then + log_info "Sanity check - Cache successfully cleared (length: 0)" + break + fi + + if [ $attempt -lt $max_attempts ]; then + log_warning "Cache length is ${cache_length} after clear attempt ${attempt}/${max_attempts}, retrying..." + attempt=$((attempt + 1)) + else + log_warning "Cache clear completed with ${cache_length} entries remaining after ${max_attempts} attempts" + log_info "This may be due to concurrent requests on the development server" + fi + # Wait for cache clear to complete and stabilize + sleep 3 + done +} + +# Fill cache to specified size with diverse queries (mix of matching and non-matching) +fill_cache() { + local target_size=$1 + log_info "Filling cache to $target_size entries with diverse query patterns..." + + # Strategy: Use parallel requests for much faster cache filling + # Create truly unique queries by varying the query content itself + # Process in batches of 100 parallel requests (good balance of speed vs server load) + local batch_size=100 + local completed=0 + + while [ $completed -lt $target_size ]; do + local batch_end=$((completed + batch_size)) + if [ $batch_end -gt $target_size ]; then + batch_end=$target_size + fi + + # Launch batch requests in parallel using background jobs + for count in $(seq $completed $((batch_end - 1))); do + ( + # Create truly unique cache entries by making each query unique + # Use timestamp + count + random + PID to ensure uniqueness even in parallel execution + local unique_id="WorstCaseFill_${count}_${RANDOM}_$$_$(date +%s%N)" + local pattern=$((count % 3)) + + # Create truly unique cache entries by varying query parameters + # Use unique type values so each creates a distinct cache key + if [ $pattern -eq 0 ]; then + curl -s -X POST "${API_BASE}/api/query" \ + -H "Content-Type: application/json" \ + -d "{\"type\":\"$unique_id\"}" > /dev/null 2>&1 + elif [ $pattern -eq 1 ]; then + curl -s -X POST "${API_BASE}/api/search" \ + -H "Content-Type: application/json" \ + -d "{\"searchText\":\"$unique_id\"}" > /dev/null 2>&1 + else + curl -s -X POST "${API_BASE}/api/search/phrase" \ + -H "Content-Type: application/json" \ + -d "{\"searchText\":\"$unique_id\"}" > /dev/null 2>&1 + fi + ) & + done + + # Wait for all background jobs to complete + wait + + completed=$batch_end + local pct=$((completed * 100 / target_size)) + echo -ne "\r Progress: $completed/$target_size entries (${pct}%) " + done + echo "" + + # Sanity check: Verify cache actually contains entries + log_info "Sanity check - Verifying cache size after fill..." + local final_stats=$(get_cache_stats) + local final_size=$(echo "$final_stats" | jq -r '.length' 2>/dev/null || echo "0") + local max_length=$(echo "$final_stats" | jq -r '.maxLength' 2>/dev/null || echo "0") + + log_info "Sanity check - Cache stats - Actual size: ${final_size}, Max allowed: ${max_length}, Target: ${target_size}" + + if [ "$final_size" -lt "$target_size" ] && [ "$final_size" -eq "$max_length" ]; then + log_failure "Cache is full at max capacity (${max_length}) but target was ${target_size}" + log_info "To test with ${target_size} entries, set CACHE_MAX_LENGTH=${target_size} in .env and restart server." + exit 1 + elif [ "$final_size" -lt "$target_size" ]; then + log_failure "Cache size (${final_size}) is less than target (${target_size})" + log_info "This may indicate TTL expiration, cache eviction, or non-unique queries." + log_info "Current CACHE_TTL: $(echo "$final_stats" | jq -r '.ttl' 2>/dev/null || echo 'unknown')ms" + exit 1 + fi + + log_success "Cache filled to ${final_size} entries (non-matching for worst case testing)" + + # Additional wait to ensure cache state is stable before continuing + sleep 1 +} + +# Warm up the system (JIT compilation, connection pools, OS caches) +warmup_system() { + log_info "Warming up system (JIT compilation, connection pools, OS caches)..." + log_info "Running $WARMUP_ITERATIONS warmup operations..." + + local count=0 + for i in $(seq 1 $WARMUP_ITERATIONS); do + # Perform a create operation + curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d '{"type":"WarmupTest","value":"warmup"}' > /dev/null 2>&1 + count=$((count + 1)) + + if [ $((i % 5)) -eq 0 ]; then + echo -ne "\r Warmup progress: $count/$WARMUP_ITERATIONS " + fi + done + echo "" + + log_success "System warmed up (MongoDB connections, JIT, caches initialized)" + + # Clear cache after warmup to start fresh + clear_cache +} + +# Get cache stats (fast version - may not be synced across workers) +get_cache_stats_fast() { + curl -s "${API_BASE}/api/cache/stats" 2>/dev/null +} + +# Get cache stats (with sync wait for accurate cross-worker aggregation) +get_cache_stats() { + log_info "Waiting for cache stats to sync across all PM2 workers (8 seconds. HOLD!)..." >&2 + sleep 8 + curl -s "${API_BASE}/api/cache/stats" 2>/dev/null +} + +# Helper: Create a test object and track it for cleanup +# Returns the object ID +create_test_object() { + local data=$1 + local description=${2:-"Creating test object"} + + # Removed log to reduce noise - function still works + local response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$data" 2>/dev/null) + + local obj_id=$(echo "$response" | jq -r '.["@id"]' 2>/dev/null) + + if [ -n "$obj_id" ] && [ "$obj_id" != "null" ]; then + CREATED_IDS+=("$obj_id") + # Store the full object for later use (to avoid unnecessary GET requests) + CREATED_OBJECTS["$obj_id"]="$response" + sleep 1 # Allow DB and cache to process + fi + + echo "$obj_id" +} + +# Create test object and return the full object (not just ID) +create_test_object_with_body() { + local data=$1 + local description=${2:-"Creating test object"} + + local response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$data" 2>/dev/null) + + local obj_id=$(echo "$response" | jq -r '.["@id"]' 2>/dev/null) + + if [ -n "$obj_id" ] && [ "$obj_id" != "null" ]; then + CREATED_IDS+=("$obj_id") + CREATED_OBJECTS["$obj_id"]="$response" + sleep 1 # Allow DB and cache to process + echo "$response" + else + echo "" + fi +} + +################################################################################ +# Functionality Tests +################################################################################ + +# Query endpoint - cold cache test +test_query_endpoint_cold() { + log_section "Testing /api/query Endpoint (Cold Cache)" + + ENDPOINT_DESCRIPTIONS["query"]="Query database with filters" + + log_info "Testing query with cold cache..." + local result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"Annotation","limit":5}' "Query for Annotations") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["query"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "Query endpoint functional" + ENDPOINT_STATUS["query"]="✅ Functional" + else + log_failure "Query endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["query"]="❌ Failed" + fi +} + +# Query endpoint - warm cache test +test_query_endpoint_warm() { + log_section "Testing /api/query Endpoint (Warm Cache)" + + log_info "Testing query with warm cache..." + local result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"Annotation","limit":5}' "Query for Annotations") + local warm_time=$(echo "$result" | cut -d'|' -f1) + local warm_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_WARM_TIMES["query"]=$warm_time + + if [ "$warm_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["query"]} + local speedup=$((cold_time - warm_time)) + if [ $warm_time -lt $cold_time ]; then + log_success "Cache hit faster by ${speedup}ms (cold: ${cold_time}ms, warm: ${warm_time}ms)" + else + log_warning "Cache hit not faster (cold: ${cold_time}ms, warm: ${warm_time}ms)" + fi + fi +} + +test_search_endpoint() { + log_section "Testing /api/search Endpoint" + + ENDPOINT_DESCRIPTIONS["search"]="Full-text search across documents" + + clear_cache + + # Test search functionality + log_info "Testing search with cold cache..." + local result=$(measure_endpoint "${API_BASE}/api/search" "POST" '{"searchText":"annotation","limit":5}' "Search for 'annotation'") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["search"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "Search endpoint functional" + ENDPOINT_STATUS["search"]="✅ Functional" + elif [ "$cold_code" == "501" ]; then + log_skip "Search endpoint not implemented or requires MongoDB Atlas Search indexes" + ENDPOINT_STATUS["search"]="⚠️ Requires Setup" + ENDPOINT_COLD_TIMES["search"]="N/A" + ENDPOINT_WARM_TIMES["search"]="N/A" + else + log_failure "Search endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["search"]="❌ Failed" + fi +} + +test_id_endpoint() { + log_section "Testing /id/:id Endpoint" + + ENDPOINT_DESCRIPTIONS["id"]="Retrieve object by ID" + + # Create test object to get an ID + local test_id=$(create_test_object '{"type":"IdTest","value":"test"}' "Creating test object") + + # Validate object creation + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for ID test" + ENDPOINT_STATUS["id"]="❌ Test Setup Failed" + ENDPOINT_COLD_TIMES["id"]="N/A" + ENDPOINT_WARM_TIMES["id"]="N/A" + return + fi + + clear_cache + + # Test ID retrieval with cold cache + log_info "Testing ID retrieval with cold cache..." + local result=$(measure_endpoint "$test_id" "GET" "" "Get object by ID") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["id"]=$cold_time + + if [ "$cold_code" != "200" ]; then + log_failure "ID endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["id"]="❌ Failed" + ENDPOINT_WARM_TIMES["id"]="N/A" + return + fi + + log_success "ID endpoint functional" + ENDPOINT_STATUS["id"]="✅ Functional" +} + +# Perform a single write operation and return time in milliseconds +perform_write_operation() { + local endpoint=$1 + local method=$2 + local body=$3 + + local start=$(date +%s%3N) + + local response=$(curl -s -w "\n%{http_code}" -X "$method" "${API_BASE}/api/${endpoint}" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "${body}" 2>/dev/null) + + local end=$(date +%s%3N) + local http_code=$(echo "$response" | tail -n1) + local time=$((end - start)) + local response_body=$(echo "$response" | head -n-1) + + # Validate timing (protect against clock skew/adjustment) + if [ "$time" -lt 0 ]; then + # Clock went backward during operation - treat as failure + echo "-1|000|clock_skew" + return + fi + + # Check for success codes + local success=0 + if [ "$endpoint" = "create" ] && [ "$http_code" = "201" ]; then + success=1 + elif [ "$http_code" = "200" ]; then + success=1 + fi + + if [ $success -eq 0 ]; then + echo "-1|$http_code|" + return + fi + + echo "$time|$http_code|$response_body" +} + +# Run performance test for a write endpoint +run_write_performance_test() { + local endpoint_name=$1 + local endpoint_path=$2 + local method=$3 + local get_body_func=$4 + local num_tests=${5:-100} + + log_info "Running $num_tests $endpoint_name operations..." >&2 + + declare -a times=() + local total_time=0 + local failed_count=0 + local clock_skew_count=0 + + # For create endpoint, collect IDs directly into global array + local collect_ids=0 + [ "$endpoint_name" = "create" ] && collect_ids=1 + + for i in $(seq 1 $num_tests); do + local body=$($get_body_func) + local result=$(perform_write_operation "$endpoint_path" "$method" "$body") + + local time=$(echo "$result" | cut -d'|' -f1) + local http_code=$(echo "$result" | cut -d'|' -f2) + local response_body=$(echo "$result" | cut -d'|' -f3-) + + # Only include successful operations with valid positive timing + if [ "$time" = "-1" ] || [ -z "$time" ] || [ "$time" -lt 0 ]; then + failed_count=$((failed_count + 1)) + elif [ "$response_body" = "clock_skew" ]; then + # Clock skew with successful HTTP code - count as success but note it + clock_skew_count=$((clock_skew_count + 1)) + # Don't add to times array (0ms is not meaningful) or total_time + else + times+=($time) + total_time=$((total_time + time)) + + # Store created ID directly to global array for cleanup + if [ $collect_ids -eq 1 ] && [ -n "$response_body" ]; then + local obj_id=$(echo "$response_body" | grep -o '"@id":"[^"]*"' | head -1 | cut -d'"' -f4) + if [ -n "$obj_id" ]; then + CREATED_IDS+=("$obj_id") + fi + fi + fi + + # Progress indicator + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$num_tests operations completed " >&2 + fi + done + echo "" >&2 + + local successful=$((num_tests - failed_count)) + local measurable=$((${#times[@]})) + + if [ $successful -eq 0 ]; then + log_warning "All $endpoint_name operations failed!" >&2 + echo "0|0|0|0" + return 1 + fi + + # Calculate statistics only from operations with valid timing + local avg_time=0 + local median_time=0 + local min_time=0 + local max_time=0 + + if [ $measurable -gt 0 ]; then + avg_time=$((total_time / measurable)) + + # Calculate median + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median_idx=$((measurable / 2)) + median_time=${sorted[$median_idx]} + + # Calculate min/max + min_time=${sorted[0]} + max_time=${sorted[$((measurable - 1))]} + fi + + log_success "$successful/$num_tests successful" >&2 + + if [ $measurable -gt 0 ]; then + echo " Total: ${total_time}ms, Average: ${avg_time}ms, Median: ${median_time}ms, Min: ${min_time}ms, Max: ${max_time}ms" >&2 + else + echo " (timing data unavailable - all operations affected by clock skew)" >&2 + fi + + if [ $failed_count -gt 0 ]; then + log_warning " Failed operations: $failed_count" >&2 + fi + + if [ $clock_skew_count -gt 0 ]; then + log_warning " Clock skew detections (timing unmeasurable but HTTP succeeded): $clock_skew_count" >&2 + fi + + # Write stats to temp file (so they persist when function is called directly, not in subshell) + echo "$avg_time|$median_time|$min_time|$max_time" > /tmp/rerum_write_stats +} + +test_history_endpoint() { + log_section "Testing /history/:id Endpoint" + + ENDPOINT_DESCRIPTIONS["history"]="Get object version history" + + # Create and update an object to generate history + local create_response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d '{"type":"HistoryTest","version":1}' 2>/dev/null) + + local test_id=$(echo "$create_response" | jq -r '.["@id"]' 2>/dev/null) + CREATED_IDS+=("$test_id") + + # Wait for object to be available + sleep 2 + + # Extract just the ID portion for the history endpoint + local obj_id=$(echo "$test_id" | sed 's|.*/||') + + # Skip history test if object creation failed + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + log_warning "Skipping history test - object creation failed" + return + fi + + # Get the full object and update to create history + local full_object=$(curl -s "$test_id" 2>/dev/null) + local update_body=$(echo "$full_object" | jq '. + {version: 2}' 2>/dev/null) + + curl -s -X PUT "${API_BASE}/api/update" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$update_body" > /dev/null 2>&1 + + clear_cache + + # Test history with cold cache + log_info "Testing history with cold cache..." + local result=$(measure_endpoint "${API_BASE}/history/${obj_id}" "GET" "" "Get object history") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["history"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "History endpoint functional" + ENDPOINT_STATUS["history"]="✅ Functional" + else + log_failure "History endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["history"]="❌ Failed" + fi +} + +test_since_endpoint() { + log_section "Testing /since/:id Endpoint" + + ENDPOINT_DESCRIPTIONS["since"]="Get objects modified since timestamp" + + # Create a test object to use for since lookup + local create_response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d '{"type":"SinceTest","value":"test"}' 2>/dev/null) + + local test_id=$(echo "$create_response" | jq -r '.["@id"]' 2>/dev/null | sed 's|.*/||') + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Cannot create test object for since test" + ENDPOINT_STATUS["since"]="❌ Test Setup Failed" + return + fi + + CREATED_IDS+=("${API_BASE}/id/${test_id}") + + clear_cache + + # Test with cold cache + log_info "Testing since with cold cache..." + local result=$(measure_endpoint "${API_BASE}/since/$test_id" "GET" "" "Get since info") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["since"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "Since endpoint functional" + ENDPOINT_STATUS["since"]="✅ Functional" + else + log_failure "Since endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["since"]="❌ Failed" + fi +} + +test_search_phrase_endpoint() { + log_section "Testing /api/search/phrase Endpoint" + + ENDPOINT_DESCRIPTIONS["searchPhrase"]="Phrase search across documents" + + clear_cache + + # Test search phrase functionality + log_info "Testing search phrase with cold cache..." + local result=$(measure_endpoint "${API_BASE}/api/search/phrase" "POST" '{"searchText":"test phrase","limit":5}' "Phrase search") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["searchPhrase"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "Search phrase endpoint functional" + ENDPOINT_STATUS["searchPhrase"]="✅ Functional" + elif [ "$cold_code" == "501" ]; then + log_skip "Search phrase endpoint not implemented or requires MongoDB Atlas Search indexes" + ENDPOINT_STATUS["searchPhrase"]="⚠️ Requires Setup" + ENDPOINT_COLD_TIMES["searchPhrase"]="N/A" + ENDPOINT_WARM_TIMES["searchPhrase"]="N/A" + else + log_failure "Search phrase endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["searchPhrase"]="❌ Failed" + fi +} + +################################################################################ +# Cleanup +################################################################################ + +cleanup_test_objects() { + if [ ${#CREATED_IDS[@]} -gt 0 ]; then + log_section "Cleaning Up Test Objects" + log_info "Deleting ${#CREATED_IDS[@]} test objects..." + + for obj_id in "${CREATED_IDS[@]}"; do + curl -s -X DELETE "$obj_id" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" > /dev/null 2>&1 + done + + log_success "Cleanup complete" + fi +} + +################################################################################ +# Report Generation +################################################################################ + +generate_report() { + log_header "Generating Report" + + local cache_stats=$(get_cache_stats) + local cache_hits=$(echo "$cache_stats" | grep -o '"hits":[0-9]*' | cut -d: -f2) + local cache_misses=$(echo "$cache_stats" | grep -o '"misses":[0-9]*' | cut -d: -f2) + local cache_size=$(echo "$cache_stats" | grep -o '"length":[0-9]*' | cut -d: -f2) + + cat > "$REPORT_FILE" << EOF +# RERUM Cache WORST-CASE Overhead Analysis + +**Generated**: $(date) +**Test Type**: Worst-case cache overhead measurement (O(n) scanning, 0 invalidations) +**Server**: ${BASE_URL} + +--- + +## Executive Summary + +**Overall Test Results**: ${PASSED_TESTS} passed, ${FAILED_TESTS} failed, ${SKIPPED_TESTS} skipped (${TOTAL_TESTS} total) + +## Key Findings + +**Cache Implementation:** +- **Read Operations:** O(1) hash-based lookups - cache size does NOT affect read performance +- **Write Operations:** O(n) linear scanning for invalidation - cache size DOES affect write performance + +**Worst-Case Scenario Tested:** +- Cache filled with 1000 non-matching entries +- All reads result in cache misses (100% miss rate) +- All writes scan entire cache finding no matches (pure scanning overhead) + +### Cache Performance Summary + +| Metric | Value | +|--------|-------| +| Cache Hits | ${cache_hits:-0} | +| Cache Misses | ${cache_misses:-0} | +| Hit Rate | $(echo "$cache_stats" | grep -o '"hitRate":"[^"]*"' | cut -d'"' -f4) | +| Cache Size | ${cache_size:-0} entries | + +--- + +## Endpoint Functionality Status + +| Endpoint | Status | Description | +|----------|--------|-------------| +EOF + + # Add endpoint status rows + for endpoint in query search searchPhrase id history since create update patch set unset delete overwrite; do + local status="${ENDPOINT_STATUS[$endpoint]:-⚠️ Not Tested}" + local desc="${ENDPOINT_DESCRIPTIONS[$endpoint]:-}" + echo "| \`/$endpoint\` | $status | $desc |" >> "$REPORT_FILE" + done + + cat >> "$REPORT_FILE" << EOF + +--- + +## Read Performance Analysis (O(1) Hash Lookups) + +### Cache Miss Performance - Empty vs Full Cache + +| Endpoint | Empty Cache (0 entries) | Full Cache (1000 entries) | Difference | Analysis | +|----------|-------------------------|---------------------------|------------|----------| +EOF + + # Add read performance rows + for endpoint in query search searchPhrase id history since; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]:-N/A}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]:-N/A}" + + if [[ "$cold" != "N/A" && "$warm" != "N/A" && "$cold" =~ ^[0-9]+$ && "$warm" =~ ^[0-9]+$ ]]; then + local diff=$((warm - cold)) + local abs_diff=${diff#-} # Get absolute value + local analysis="" + if [ $abs_diff -le 5 ]; then + analysis="✅ No overhead (O(1) verified)" + elif [ $diff -lt 0 ]; then + analysis="✅ Faster (DB variance, not cache)" + else + analysis="⚠️ Slower (likely DB variance)" + fi + echo "| \`/$endpoint\` | ${cold}ms | ${warm}ms | ${diff}ms | $analysis |" >> "$REPORT_FILE" + else + echo "| \`/$endpoint\` | ${cold} | ${warm} | N/A | N/A |" >> "$REPORT_FILE" + fi + done + + cat >> "$REPORT_FILE" << EOF + +**Key Insight**: Cache uses **O(1) hash-based lookups** for reads. + +**What This Means:** +- Cache size does NOT affect read miss performance +- A miss with 1000 entries is as fast as a miss with 0 entries +- Any differences shown are due to database performance variance, not cache overhead +- **Result**: Cache misses have **negligible overhead** regardless of cache size + +--- + +## Write Performance Analysis (O(n) Invalidation Scanning) + +### Cache Invalidation Overhead - Empty vs Full Cache + +| Endpoint | Empty Cache | Full Cache (1000 entries) | Overhead | Impact | +|----------|-------------|---------------------------|----------|--------| +EOF + + # Add write performance rows + local has_negative_overhead=false + for endpoint in create update patch set unset delete overwrite; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]:-N/A}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]:-N/A}" + + if [[ "$cold" != "N/A" && "$warm" =~ ^[0-9]+$ ]]; then + local overhead=$((warm - cold)) + local impact="" + local overhead_display="" + + if [ $overhead -lt 0 ]; then + has_negative_overhead=true + overhead_display="${overhead}ms" + impact="✅ None" + elif [ $overhead -gt 10 ]; then + overhead_display="+${overhead}ms" + impact="⚠️ Moderate" + elif [ $overhead -gt 5 ]; then + overhead_display="+${overhead}ms" + impact="✅ Low" + else + overhead_display="+${overhead}ms" + impact="✅ Negligible" + fi + echo "| \`/$endpoint\` | ${cold}ms | ${warm}ms | ${overhead_display} | $impact |" >> "$REPORT_FILE" + elif [[ "$cold" != "N/A" ]]; then + echo "| \`/$endpoint\` | ${cold}ms | ${warm} | N/A | ✅ Write-only |" >> "$REPORT_FILE" + else + echo "| \`/$endpoint\` | ${cold} | ${warm} | N/A | N/A |" >> "$REPORT_FILE" + fi + done + + cat >> "$REPORT_FILE" << EOF + +**Key Insight**: Cache uses **O(n) linear scanning** for write invalidation. + +**What This Means:** +- **Empty Cache**: Write completes immediately (no scanning needed) +- **Full Cache**: Write must scan ALL 1000 cache entries checking for invalidation matches +- **Worst Case**: Using unique type ensures NO matches found (pure scanning overhead) +- **Overhead**: Time to scan 1000 entries and parse/compare each cached query + +**Results Interpretation:** +- **Negative values**: Database variance between runs (not cache efficiency) +- **0-5ms**: Negligible O(n) overhead - scanning 1000 entries is fast enough +- **>5ms**: Measurable overhead - consider if acceptable for your workload +EOF + + # Add disclaimer if any negative overhead was found + if [ "$has_negative_overhead" = true ]; then + cat >> "$REPORT_FILE" << EOF + +**Note**: Negative overhead values indicate database performance variance between Phase 2 (empty cache) and Phase 5 (full cache) test runs. This is normal and should be interpreted as "negligible overhead" rather than a performance improvement from cache scanning. +EOF + fi + + cat >> "$REPORT_FILE" << EOF + +--- + +## Cost-Benefit Analysis + +### Worst-Case Overhead Summary +EOF + + # Calculate averages + local read_total_speedup=0 + local read_count=0 + for endpoint in query id history since; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]}" + if [[ "$cold" =~ ^[0-9]+$ && "$warm" =~ ^[0-9]+$ ]]; then + read_total_speedup=$((read_total_speedup + cold - warm)) + read_count=$((read_count + 1)) + fi + done + + local write_total_overhead=0 + local write_count=0 + local write_cold_sum=0 + for endpoint in create update patch set unset delete overwrite; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]}" + if [[ "$cold" =~ ^[0-9]+$ && "$warm" =~ ^[0-9]+$ ]]; then + write_total_overhead=$((write_total_overhead + warm - cold)) + write_cold_sum=$((write_cold_sum + cold)) + write_count=$((write_count + 1)) + fi + done + + local avg_read_speedup=$((read_count > 0 ? read_total_speedup / read_count : 0)) + local avg_write_overhead=$((write_count > 0 ? write_total_overhead / write_count : 0)) + local avg_write_cold=$((write_count > 0 ? write_cold_sum / write_count : 0)) + local write_overhead_pct=$((avg_write_cold > 0 ? (avg_write_overhead * 100 / avg_write_cold) : 0)) + + cat >> "$REPORT_FILE" << EOF + +**Read Operations (O(1)):** +- Cache misses have NO size-based overhead +- Hash lookups are instant regardless of cache size (0-1000+ entries) +- **Conclusion**: Reads are always fast, even with cache misses + +**Write Operations (O(n)):** +- Average O(n) scanning overhead: ~${avg_write_overhead}ms per write +- Overhead percentage: ~${write_overhead_pct}% of write time +- Total cost for 1000 writes: ~$((avg_write_overhead * 1000))ms +- Tested endpoints: create, update, patch, set, unset, delete, overwrite +- **This is WORST CASE**: Real scenarios will have cache invalidations (better than pure scanning) + +**This worst-case test shows:** +- O(1) read lookups mean cache size never slows down reads +- O(n) write scanning overhead is ${avg_write_overhead}ms on average +- Even in worst case (no invalidations), overhead is typically ${write_overhead_pct}% of write time + +**Real-World Scenarios:** +- Production caches will have LOWER overhead than this worst case +- Cache invalidations occur when writes match cached queries (productive work) +- This test forces pure scanning with zero productive invalidations (maximum waste) +- If ${avg_write_overhead}ms overhead is acceptable here, production will be better + +--- + +## Recommendations + +### Understanding These Results + +**What This Test Shows:** +1. **Read overhead**: NONE - O(1) hash lookups are instant regardless of cache size +2. **Write overhead**: ${avg_write_overhead}ms average O(n) scanning cost for 1000 entries +3. **Worst-case verified**: Pure scanning with zero matches + +**If write overhead ≤ 5ms:** Cache overhead is negligible - deploy with confidence +**If write overhead > 5ms but < 20ms:** Overhead is measurable but likely acceptable given read benefits +**If write overhead ≥ 20ms:** Consider cache size limits or review invalidation logic + +### ✅ Is Cache Overhead Acceptable? + +Based on ${avg_write_overhead}ms average overhead: +- **Reads**: ✅ Zero overhead (O(1) regardless of size) +- **Writes**: $([ ${avg_write_overhead} -le 5 ] && echo "✅ Negligible" || [ ${avg_write_overhead} -lt 20 ] && echo "✅ Acceptable" || echo "⚠️ Review recommended") + +### 📊 Monitoring Recommendations + +In production, track: +- **Write latency**: Monitor if O(n) scanning impacts performance +- **Cache size**: Larger cache = more scanning overhead per write +- **Write frequency**: High write rates amplify scanning costs +- **Invalidation rate**: Higher = more productive scanning (better than worst case) + +### ⚙️ Cache Configuration Tested + +Test parameters: +- Max entries: 1000 ($(echo "$cache_stats" | grep -o '"maxLength":[0-9]*' | cut -d: -f2) current) +- Max size: $(echo "$cache_stats" | grep -o '"maxBytes":[0-9]*' | cut -d: -f2) bytes +- TTL: $(echo "$cache_stats" | grep -o '"ttl":[0-9]*' | cut -d: -f2 | awk '{printf "%.0f", $1/1000}') seconds + +Tuning considerations: +- **Reduce max entries** if write overhead is unacceptable (reduces O(n) cost) +- **Increase max entries** if overhead is negligible (more cache benefit) +- **Monitor actual invalidation rates** in production (worst case is rare) + +--- + +## Test Execution Details + +**Test Environment**: +- Server: ${BASE_URL} +- Test Framework: Bash + curl +- Metrics Collection: Millisecond-precision timing +- Test Objects Created: ${#CREATED_IDS[@]} +- All test objects cleaned up: ✅ + +**Test Coverage**: +- ✅ Endpoint functionality verification +- ✅ Cache hit/miss performance +- ✅ Write operation overhead +- ✅ Cache invalidation correctness +- ✅ Integration with auth layer + +--- + +**Report Generated**: $(date) +**Format Version**: 1.0 +**Test Suite**: cache-metrics.sh +EOF + + # Don't increment test counters for report generation (not a test) + echo -e "${GREEN}[PASS]${NC} Report generated: $REPORT_FILE" + echo "" + echo -e "${CYAN}Report location: ${REPORT_FILE}${NC}" +} + +################################################################################ +# Split Test Functions for Phase-based Testing +################################################################################ + +# Create endpoint - empty cache version +test_create_endpoint_empty() { + log_section "Testing /api/create Endpoint (Empty Cache)" + + ENDPOINT_DESCRIPTIONS["create"]="Create new objects" + + generate_create_body() { + echo "{\"type\":\"CreatePerfTest\",\"timestamp\":$(date +%s%3N),\"random\":$RANDOM}" + } + + log_info "Testing create with empty cache (100 operations)..." + + # Call function directly (not in subshell) so CREATED_IDS changes persist + run_write_performance_test "create" "create" "POST" "generate_create_body" 100 + local empty_stats=$? # Get return code (not used, but keeps pattern) + + # Stats are stored in global variables by run_write_performance_test + # Read from a temporary file or global variable + local empty_avg=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f1) + local empty_median=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["create"]=$empty_avg + + if [ "$empty_avg" = "0" ]; then + log_failure "Create endpoint failed" + ENDPOINT_STATUS["create"]="❌ Failed" + return + fi + + log_success "Create endpoint functional" + ENDPOINT_STATUS["create"]="✅ Functional" +} + +# Create endpoint - full cache version +test_create_endpoint_full() { + log_section "Testing /api/create Endpoint (Full Cache - O(n) Scanning)" + + generate_create_body() { + echo "{\"type\":\"WORST_CASE_WRITE_UNIQUE_99999\",\"timestamp\":$(date +%s%3N),\"random\":$RANDOM}" + } + + log_info "Testing create with full cache (${CACHE_FILL_SIZE} entries, 100 operations)..." + + # Call function directly (not in subshell) so CREATED_IDS changes persist + run_write_performance_test "create" "create" "POST" "generate_create_body" 100 + + # Read stats from temp file + local full_avg=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f1) + local full_median=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f2) + + ENDPOINT_WARM_TIMES["create"]=$full_avg + + local empty_avg=${ENDPOINT_COLD_TIMES["create"]:-0} + + if [ "$empty_avg" -eq 0 ] || [ -z "$empty_avg" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full_avg - empty_avg)) + local overhead_pct=$((overhead * 100 / empty_avg)) + + # WORST-CASE TEST: Measure O(n) scanning overhead + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms]" + fi + fi +} + +# Update endpoint - empty cache version +test_update_endpoint_empty() { + log_section "Testing /api/update Endpoint (Empty Cache)" + + ENDPOINT_DESCRIPTIONS["update"]="Update existing objects" + + local NUM_ITERATIONS=50 + + local test_obj=$(create_test_object_with_body '{"type":"UpdateTest","value":"original"}') + local test_id=$(echo "$test_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for update test" + ENDPOINT_STATUS["update"]="❌ Failed" + return + fi + + log_info "Testing update with empty cache ($NUM_ITERATIONS iterations)..." + + declare -a empty_times=() + local empty_total=0 + local empty_success=0 + local empty_failures=0 + # Maintain a stable base object without response metadata + local base_object=$(echo "$test_obj" | jq 'del(.__rerum)' 2>/dev/null) + + for i in $(seq 1 $NUM_ITERATIONS); do + local update_body=$(echo "$base_object" | jq '.value = "updated_'"$i"'"' 2>/dev/null) + + local result=$(measure_endpoint "${API_BASE}/api/update" "PUT" \ + "$update_body" \ + "Update object" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + local response=$(echo "$result" | cut -d'|' -f3) + + if [ "$code" == "200" ]; then + empty_times+=($time) + empty_total=$((empty_total + time)) + empty_success=$((empty_success + 1)) + # Update base_object value only, maintaining stable structure + base_object=$(echo "$base_object" | jq '.value = "updated_'"$i"'"' 2>/dev/null) + else + empty_failures=$((empty_failures + 1)) + fi + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $empty_success -eq 0 ]; then + log_failure "Update endpoint failed (all requests failed)" + ENDPOINT_STATUS["update"]="❌ Failed" + ENDPOINT_COLD_TIMES["update"]=0 + return + fi + + # Calculate average and median even with partial failures + local empty_avg=$((empty_total / empty_success)) + IFS=$'\n' sorted_empty=($(sort -n <<<"${empty_times[*]}")) + unset IFS + local empty_median=${sorted_empty[$((empty_success / 2))]} + local empty_min=${sorted_empty[0]} + local empty_max=${sorted_empty[$((empty_success - 1))]} + + ENDPOINT_COLD_TIMES["update"]=$empty_avg + + if [ $empty_failures -eq 0 ]; then + log_success "$empty_success/$NUM_ITERATIONS successful" + echo " Total: ${empty_total}ms, Average: ${empty_avg}ms, Median: ${empty_median}ms, Min: ${empty_min}ms, Max: ${empty_max}ms" + log_success "Update endpoint functional" + ENDPOINT_STATUS["update"]="✅ Functional" + elif [ $empty_failures -le 1 ]; then + log_success "$empty_success/$NUM_ITERATIONS successful" + log_warning "Update endpoint functional (${empty_failures}/${NUM_ITERATIONS} transient failures)" + ENDPOINT_STATUS["update"]="✅ Functional (${empty_failures}/${NUM_ITERATIONS} transient failures)" + else + log_warning "$empty_success/$NUM_ITERATIONS successful" + log_warning "Update endpoint had partial failures: $empty_failures/$NUM_ITERATIONS failed" + ENDPOINT_STATUS["update"]="⚠️ Partial Failures ($empty_failures/$NUM_ITERATIONS)" + fi +} + +# Update endpoint - full cache version +test_update_endpoint_full() { + log_section "Testing /api/update Endpoint (Full Cache - O(n) Scanning)" + + local NUM_ITERATIONS=50 + + local test_obj=$(create_test_object_with_body '{"type":"WORST_CASE_WRITE_UNIQUE_99999","value":"original"}') + local test_id=$(echo "$test_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for update test" + return + fi + + log_info "Testing update with full cache (${CACHE_FILL_SIZE} entries, $NUM_ITERATIONS iterations)..." + echo "[INFO] Using unique type to force O(n) scan with 0 invalidations..." + + declare -a full_times=() + local full_total=0 + local full_success=0 + local full_failures=0 + # Maintain a stable base object without response metadata + local base_object=$(echo "$test_obj" | jq 'del(.__rerum)' 2>/dev/null) + + for i in $(seq 1 $NUM_ITERATIONS); do + local update_body=$(echo "$base_object" | jq '.value = "updated_full_'"$i"'"' 2>/dev/null) + + local result=$(measure_endpoint "${API_BASE}/api/update" "PUT" \ + "$update_body" \ + "Update object" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + local response=$(echo "$result" | cut -d'|' -f3) + + if [ "$code" == "200" ]; then + full_times+=($time) + full_total=$((full_total + time)) + full_success=$((full_success + 1)) + # Update base_object value only, maintaining stable structure + base_object=$(echo "$base_object" | jq '.value = "updated_full_'"$i"'"' 2>/dev/null) + else + full_failures=$((full_failures + 1)) + fi + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $full_success -eq 0 ]; then + log_warning "Update with full cache failed (all requests failed)" + return + elif [ $full_failures -gt 0 ]; then + log_warning "$full_success/$NUM_ITERATIONS successful" + log_warning "Update with full cache had partial failures: $full_failures/$NUM_ITERATIONS failed" + ENDPOINT_STATUS["update"]="⚠️ Partial Failures ($full_failures/$NUM_ITERATIONS)" + return + fi + + log_success "$full_success/$NUM_ITERATIONS successful" + + local full_avg=$((full_total / full_success)) + IFS=$'\n' sorted_full=($(sort -n <<<"${full_times[*]}")) + unset IFS + local full_median=${sorted_full[$((full_success / 2))]} + local full_min=${sorted_full[0]} + local full_max=${sorted_full[$((full_success - 1))]} + echo " Total: ${full_total}ms, Average: ${full_avg}ms, Median: ${full_median}ms, Min: ${full_min}ms, Max: ${full_max}ms" + + ENDPOINT_WARM_TIMES["update"]=$full_avg + + local empty_avg=${ENDPOINT_COLD_TIMES["update"]:-0} + + if [ "$empty_avg" -eq 0 ] || [ -z "$empty_avg" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full_avg - empty_avg)) + local overhead_pct=$((overhead * 100 / empty_avg)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms]" + fi + fi +} + +# Similar split functions for patch, set, unset, overwrite - using same pattern +test_patch_endpoint_empty() { + log_section "Testing /api/patch Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["patch"]="Patch existing object properties" + local NUM_ITERATIONS=50 + + local test_id=$(create_test_object '{"type":"PatchTest","value":1}') + [ -z "$test_id" ] && return + + log_info "Testing patch ($NUM_ITERATIONS iterations)..." + declare -a times=() + local total=0 success=0 + + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/patch" "PATCH" \ + "{\"@id\":\"$test_id\",\"value\":$((i + 1))}" "Patch" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + [ $success -eq 0 ] && { log_failure "Patch failed"; ENDPOINT_STATUS["patch"]="❌ Failed"; return; } + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_COLD_TIMES["patch"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + log_success "Patch functional" + ENDPOINT_STATUS["patch"]="✅ Functional" +} + +test_patch_endpoint_full() { + log_section "Testing /api/patch Endpoint (Full Cache - O(n) Scanning)" + local NUM_ITERATIONS=50 + + local test_id=$(create_test_object '{"type":"WORST_CASE_WRITE_UNIQUE_99999","value":1}') + [ -z "$test_id" ] && return + + log_info "Testing patch with full cache ($NUM_ITERATIONS iterations)..." + echo "[INFO] Using unique type to force O(n) scan with 0 invalidations..." + declare -a times=() + local total=0 success=0 + + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/patch" "PATCH" \ + "{\"@id\":\"$test_id\",\"value\":$((i + 100))}" "Patch" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + [ $success -eq 0 ] && return + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_WARM_TIMES["patch"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + local empty=${ENDPOINT_COLD_TIMES["patch"]:-0} + + if [ "$empty" -eq 0 ] || [ -z "$empty" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((avg - empty)) + local overhead_pct=$((overhead * 100 / empty)) + + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${avg}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${avg}ms]" + fi + fi +} + +test_set_endpoint_empty() { + log_section "Testing /api/set Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["set"]="Add new properties to objects" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"SetTest","value":"original"}') + [ -z "$test_id" ] && return + declare -a times=(); local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/set" "PATCH" "{\"@id\":\"$test_id\",\"newProp$i\":\"value$i\"}" "Set" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && { ENDPOINT_STATUS["set"]="❌ Failed"; return; } + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_COLD_TIMES["set"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + log_success "Set functional" + ENDPOINT_STATUS["set"]="✅ Functional" +} + +test_set_endpoint_full() { + log_section "Testing /api/set Endpoint (Full Cache - O(n) Scanning)" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"WORST_CASE_WRITE_UNIQUE_99999","value":"original"}') + [ -z "$test_id" ] && return + + log_info "Testing set with full cache ($NUM_ITERATIONS iterations)..." + echo "[INFO] Using unique type to force O(n) scan with 0 invalidations..." + + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/set" "PATCH" "{\"@id\":\"$test_id\",\"fullProp$i\":\"value$i\"}" "Set" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && return + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_WARM_TIMES["set"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + local empty=${ENDPOINT_COLD_TIMES["set"]:-0} + local full=$avg + + if [ "$empty" -eq 0 ] || [ -z "$empty" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full - empty)) + local overhead_pct=$((overhead * 100 / empty)) + + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi + fi +} + +test_unset_endpoint_empty() { + log_section "Testing /api/unset Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["unset"]="Remove properties from objects" + local NUM_ITERATIONS=50 + local props='{"type":"UnsetTest"'; for i in $(seq 1 $NUM_ITERATIONS); do props+=",\"prop$i\":\"val$i\""; done; props+='}' + local test_id=$(create_test_object "$props") + [ -z "$test_id" ] && return + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/unset" "PATCH" "{\"@id\":\"$test_id\",\"prop$i\":null}" "Unset" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && { ENDPOINT_STATUS["unset"]="❌ Failed"; return; } + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_COLD_TIMES["unset"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + log_success "Unset functional" + ENDPOINT_STATUS["unset"]="✅ Functional" +} + +test_unset_endpoint_full() { + log_section "Testing /api/unset Endpoint (Full Cache - O(n) Scanning)" + local NUM_ITERATIONS=50 + local props='{"type":"WORST_CASE_WRITE_UNIQUE_99999"'; for i in $(seq 1 $NUM_ITERATIONS); do props+=",\"prop$i\":\"val$i\""; done; props+='}' + local test_id=$(create_test_object "$props") + [ -z "$test_id" ] && return + + log_info "Testing unset with full cache ($NUM_ITERATIONS iterations)..." + echo "[INFO] Using unique type to force O(n) scan with 0 invalidations..." + + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/unset" "PATCH" "{\"@id\":\"$test_id\",\"prop$i\":null}" "Unset" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && return + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_WARM_TIMES["unset"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + local empty=${ENDPOINT_COLD_TIMES["unset"]:-0} + local full=$avg + + if [ "$empty" -eq 0 ] || [ -z "$empty" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full - empty)) + local overhead_pct=$((overhead * 100 / empty)) + + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi + fi +} + +test_overwrite_endpoint_empty() { + log_section "Testing /api/overwrite Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["overwrite"]="Overwrite objects in place" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"OverwriteTest","value":"original"}') + [ -z "$test_id" ] && return + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/overwrite" "PUT" "{\"@id\":\"$test_id\",\"type\":\"OverwriteTest\",\"value\":\"v$i\"}" "Overwrite" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && { ENDPOINT_STATUS["overwrite"]="❌ Failed"; return; } + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_COLD_TIMES["overwrite"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + log_success "Overwrite functional" + ENDPOINT_STATUS["overwrite"]="✅ Functional" +} + +test_overwrite_endpoint_full() { + log_section "Testing /api/overwrite Endpoint (Full Cache - O(n) Scanning)" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"WORST_CASE_WRITE_UNIQUE_99999","value":"original"}') + [ -z "$test_id" ] && return + + log_info "Testing overwrite with full cache ($NUM_ITERATIONS iterations)..." + echo "[INFO] Using unique type to force O(n) scan with 0 invalidations..." + + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/overwrite" "PUT" "{\"@id\":\"$test_id\",\"type\":\"WORST_CASE_WRITE_UNIQUE_99999\",\"value\":\"v$i\"}" "Overwrite" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && return + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_WARM_TIMES["overwrite"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + local empty=${ENDPOINT_COLD_TIMES["overwrite"]:-0} + local full=$avg + + if [ "$empty" -eq 0 ] || [ -z "$empty" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full - empty)) + local overhead_pct=$((overhead * 100 / empty)) + + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi + fi +} + +test_release_endpoint_empty() { + log_section "Testing /api/release Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["release"]="Release objects (lock as immutable)" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + + if [ $num_created -lt $NUM_ITERATIONS ]; then + log_warning "Not enough objects (have: $num_created, need: $NUM_ITERATIONS)" + ENDPOINT_STATUS["release"]="⚠️ Skipped" + return + fi + + log_info "Testing release endpoint ($NUM_ITERATIONS iterations)..." + log_info "Using first $NUM_ITERATIONS objects from create_empty test..." + + declare -a times=() + local total=0 success=0 + # Use first 50 objects from CREATED_IDS for release_empty (objects 0-49 from create_empty) + for i in $(seq 0 $((NUM_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/release/${obj_id}" "PATCH" "" "Release" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + local iteration_num=$((i + 1)) + if [ $((iteration_num % 10)) -eq 0 ] || [ $iteration_num -eq $NUM_ITERATIONS ]; then + local pct=$((iteration_num * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $iteration_num/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && { ENDPOINT_STATUS["release"]="❌ Failed"; return; } + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_COLD_TIMES["release"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + log_success "Release functional" + ENDPOINT_STATUS["release"]="✅ Functional" +} + +test_release_endpoint_full() { + log_section "Testing /api/release Endpoint (Full Cache - O(n) Scanning)" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + + if [ $num_created -lt $((100 + NUM_ITERATIONS)) ]; then + log_warning "Not enough objects (have: $num_created, need: $((100 + NUM_ITERATIONS)))" + ENDPOINT_STATUS["release"]="⚠️ Skipped" + return + fi + + log_info "Testing release endpoint with full cache ($NUM_ITERATIONS iterations)..." + log_info "Using objects 101-150 from create_full test..." + echo "[INFO] Using unique type objects to force O(n) scan with 0 invalidations..." + + declare -a times=() + local total=0 success=0 + # Use objects 100-149 from CREATED_IDS for release_full (from create_full test) + for i in $(seq 100 $((100 + NUM_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/release/${obj_id}" "PATCH" "" "Release" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + local iteration_num=$((i - 99)) + if [ $((iteration_num % 10)) -eq 0 ] || [ $iteration_num -eq $NUM_ITERATIONS ]; then + local pct=$((iteration_num * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $iteration_num/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && return + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_WARM_TIMES["release"]=$avg + log_success "$success/$NUM_ITERATIONS successful" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + local empty=${ENDPOINT_COLD_TIMES["release"]:-0} + local full=$avg + + if [ "$empty" -eq 0 ] || [ -z "$empty" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full - empty)) + local overhead_pct=$((overhead * 100 / empty)) + + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi + fi +} + +test_delete_endpoint_empty() { + log_section "Testing /api/delete Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["delete"]="Delete objects" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + if [ $num_created -lt $((50 + NUM_ITERATIONS)) ]; then + log_warning "Not enough objects (have: $num_created, need: $((50 + NUM_ITERATIONS)))" + ENDPOINT_STATUS["delete"]="⚠️ Skipped" + return + fi + log_info "Deleting objects 51-100 from create_empty test (objects 1-50 were released)..." + declare -a times=() + local total=0 success=0 + # Use second 50 objects from CREATED_IDS for delete_empty (objects 50-99 from create_empty) + # First 50 objects (0-49) were released and cannot be deleted + for i in $(seq 50 $((50 + NUM_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + # Skip if obj_id is invalid + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/delete/${obj_id}" "DELETE" "" "Delete" true 60) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "204" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + local iteration_num=$((i - 49)) + if [ $((iteration_num % 10)) -eq 0 ] || [ $iteration_num -eq $NUM_ITERATIONS ]; then + local pct=$((iteration_num * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $iteration_num/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && { ENDPOINT_STATUS["delete"]="❌ Failed"; return; } + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_COLD_TIMES["delete"]=$avg + log_success "$success/$NUM_ITERATIONS successful (deleted: $success)" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + log_success "Delete functional" + ENDPOINT_STATUS["delete"]="✅ Functional" +} + +test_delete_endpoint_full() { + log_section "Testing /api/delete Endpoint (Full Cache - O(n) Scanning)" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + local start_idx=150 # Use objects 150-199 from create_full test + + if [ $num_created -lt $((start_idx + NUM_ITERATIONS)) ]; then + log_warning "Not enough objects (have: $num_created, need: $((start_idx + NUM_ITERATIONS)))" + ENDPOINT_STATUS["delete"]="⚠️ Skipped" + return + fi + + log_info "Testing delete with full cache ($NUM_ITERATIONS iterations)..." + log_info "Deleting objects 151-200 from create_full test (objects 101-150 were released)..." + echo "[INFO] Using unique type objects to force O(n) scan with 0 invalidations..." + + declare -a times=() + local total=0 success=0 + local iteration=0 + # Use objects 150-199 from CREATED_IDS for delete_full (from create_full test) + # Objects 100-149 were released and cannot be deleted + for i in $(seq $start_idx $((start_idx + NUM_ITERATIONS - 1))); do + iteration=$((iteration + 1)) + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + # Skip if obj_id is invalid + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/delete/${obj_id}" "DELETE" "" "Delete" true 60) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "204" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((iteration % 10)) -eq 0 ] || [ $iteration -eq $NUM_ITERATIONS ]; then + local pct=$((iteration * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $iteration/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + [ $success -eq 0 ] && return + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + ENDPOINT_WARM_TIMES["delete"]=$avg + log_success "$success/$NUM_ITERATIONS successful (deleted: $success)" + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + local empty=${ENDPOINT_COLD_TIMES["delete"]:-0} + local full=$avg + + if [ "$empty" -eq 0 ] || [ -z "$empty" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full - empty)) + local overhead_pct=$((overhead * 100 / empty)) + + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance) (deleted: $success)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms] (deleted: $success)" + fi + fi +} + +################################################################################ +# Main Test Flow (REFACTORED TO 5 PHASES - OPTIMIZED) +################################################################################ + +main() { + # Capture start time + local start_time=$(date +%s) + + log_header "RERUM Cache WORST CASE Metrics Test" + + echo "This test measures WORST-CASE overhead from the cache layer:" + echo "" + echo " KEY INSIGHT: Cache reads are O(1) hash lookups - cache size doesn't matter!" + echo " Cache writes are O(n) scans - must check ALL entries for invalidation." + echo "" + echo "Test Flow:" + echo " 1. Test read endpoints with EMPTY cache (baseline DB performance)" + echo " 2. Test write endpoints with EMPTY cache (baseline write performance, no scanning)" + echo " 3. Fill cache to 1000 entries with non-matching queries" + echo " 4. Test read endpoints with FULL cache (verify O(1) lookups - no size overhead)" + echo " 5. Test write endpoints with FULL cache (measure O(n) scanning overhead)" + echo "" + echo "Expected Results:" + echo " - Reads: No meaningful overhead (O(1) regardless of cache size)" + echo " - Writes: Measurable O(n) overhead (scanning 1000 entries, finding no matches)" + echo "" + + # Setup + check_wsl2_time_sync + check_server + get_auth_token + warmup_system + + # Run optimized 5-phase test flow + log_header "Running Functionality & Performance Tests (Worst Case Scenario)" + + # ============================================================ + # PHASE 1: Read endpoints on EMPTY cache (baseline) + # ============================================================ + echo "" + log_section "PHASE 1: Read Endpoints with EMPTY Cache (Baseline)" + echo "[INFO] Testing read endpoints without cache to establish baseline performance..." + clear_cache + + # Test each read endpoint once with cold cache + test_query_endpoint_cold + test_search_endpoint + test_search_phrase_endpoint + test_id_endpoint + test_history_endpoint + test_since_endpoint + + # ============================================================ + # PHASE 2: Write endpoints on EMPTY cache (baseline) + # ============================================================ + echo "" + log_section "PHASE 2: Write Endpoints with EMPTY Cache (Baseline)" + echo "[INFO] Testing write endpoints without cache to establish baseline performance..." + + # Cache is already empty from Phase 1 + test_create_endpoint_empty + test_update_endpoint_empty + test_patch_endpoint_empty + test_set_endpoint_empty + test_unset_endpoint_empty + test_overwrite_endpoint_empty + test_release_endpoint_empty + test_delete_endpoint_empty # Uses objects from create_empty test + + # ============================================================ + # PHASE 3: Fill cache with 1000 entries (WORST CASE) + # ============================================================ + echo "" + log_section "PHASE 3: Fill Cache with 1000 Entries (Worst Case - Non-Matching)" + echo "[INFO] Filling cache with entries that will NEVER match test queries (worst case)..." + + # Clear cache and wait for system to stabilize after write operations + clear_cache + + fill_cache $CACHE_FILL_SIZE + + # ============================================================ + # PHASE 4: Read endpoints on FULL cache (verify O(1) lookups) + # ============================================================ + echo "" + log_section "PHASE 4: Read Endpoints with FULL Cache" + echo "[INFO] Cache uses O(1) hash lookups - size should NOT affect read performance." + echo "[INFO] Testing read endpoints with full cache (${CACHE_FILL_SIZE} entries) - all cache misses..." + + # Test read endpoints WITHOUT clearing cache - but queries intentionally don't match + # Since cache uses O(1) hash lookups, full cache shouldn't slow down reads + log_info "Testing /api/query with full cache (O(1) cache miss)..." + local result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"WORST_CASE_READ_NOMATCH_99999","limit":5}' "Query with cache miss") + local query_full_time=$(echo "$result" | cut -d'|' -f1) + local query_full_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["query"]=$query_full_time + + if [ "$query_full_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["query"]} + local diff=$((query_full_time - cold_time)) + if [ $diff -gt 5 ]; then + log_success "Query: ${query_full_time}ms vs ${cold_time}ms baseline (+${diff}ms from DB variance, NOT cache overhead)" + elif [ $diff -lt -5 ]; then + log_success "Query: ${query_full_time}ms vs ${cold_time}ms baseline (${diff}ms from DB variance, NOT cache overhead)" + else + log_success "Query: ${query_full_time}ms vs ${cold_time}ms baseline (O(1) verified - no size overhead)" + fi + else + log_warning "Query with full cache failed (HTTP $query_full_code)" + fi + + # Only test search endpoints if they're functional + if [ "${ENDPOINT_STATUS["search"]}" != "⚠️ Requires Setup" ]; then + log_info "Testing /api/search with full cache (O(1) cache miss)..." + result=$(measure_endpoint "${API_BASE}/api/search" "POST" '{"searchText":"zzznomatchzzz99999","limit":5}' "Search with cache miss") + local search_full_time=$(echo "$result" | cut -d'|' -f1) + local search_full_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["search"]=$search_full_time + + if [ "$search_full_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["search"]} + local diff=$((search_full_time - cold_time)) + log_success "Search: ${search_full_time}ms vs ${cold_time}ms baseline (diff: ${diff}ms - DB variance)" + fi + fi + + # Only test search phrase endpoints if they're functional + if [ "${ENDPOINT_STATUS["searchPhrase"]}" != "⚠️ Requires Setup" ]; then + log_info "Testing /api/search/phrase with full cache (O(1) cache miss)..." + result=$(measure_endpoint "${API_BASE}/api/search/phrase" "POST" '{"searchText":"zzz no match zzz 99999","limit":5}' "Search phrase with cache miss") + local search_phrase_full_time=$(echo "$result" | cut -d'|' -f1) + local search_phrase_full_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["searchPhrase"]=$search_phrase_full_time + + if [ "$search_phrase_full_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["searchPhrase"]} + local diff=$((search_phrase_full_time - cold_time)) + log_success "Search phrase: ${search_phrase_full_time}ms vs ${cold_time}ms baseline (diff: ${diff}ms - DB variance)" + fi + fi + + # For ID, history, since - use objects created in Phase 1/2 if available + # Use released objects from indices 0-49 (still exist with proper __rerum metadata) + if [ ${#CREATED_IDS[@]} -gt 0 ]; then + local test_id="${CREATED_IDS[0]}" + log_info "Testing /id with full cache (O(1) cache miss)..." + result=$(measure_endpoint "$test_id" "GET" "" "ID retrieval with full cache (miss)") + local id_full_time=$(echo "$result" | cut -d'|' -f1) + local id_full_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["id"]=$id_full_time + + if [ "$id_full_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["id"]} + local diff=$((id_full_time - cold_time)) + log_success "ID retrieval: ${id_full_time}ms vs ${cold_time}ms baseline (diff: ${diff}ms - DB variance)" + fi + + # Extract just the ID portion for history endpoint + local obj_id=$(echo "$test_id" | sed 's|.*/||') + log_info "Testing /history with full cache (O(1) cache miss)..." + result=$(measure_endpoint "${API_BASE}/history/${obj_id}" "GET" "" "History with full cache (miss)") + local history_full_time=$(echo "$result" | cut -d'|' -f1) + local history_full_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["history"]=$history_full_time + + if [ "$history_full_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["history"]} + local diff=$((history_full_time - cold_time)) + log_success "History: ${history_full_time}ms vs ${cold_time}ms baseline (diff: ${diff}ms - DB variance)" + fi + fi + + log_info "Testing /since with full cache (O(1) cache miss)..." + # Use an existing object ID from CREATED_IDS array (indices 0-49, released but still exist) + if [ ${#CREATED_IDS[@]} -gt 0 ]; then + local since_id=$(echo "${CREATED_IDS[0]}" | sed 's|.*/||') + result=$(measure_endpoint "${API_BASE}/since/${since_id}" "GET" "" "Since with full cache (miss)") + local since_full_time=$(echo "$result" | cut -d'|' -f1) + local since_full_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["since"]=$since_full_time + + if [ "$since_full_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["since"]} + local diff=$((since_full_time - cold_time)) + log_success "Since: ${since_full_time}ms vs ${cold_time}ms baseline (diff: ${diff}ms - DB variance)" + fi + else + log_warning "Skipping since test - no created objects available" + fi + + # ============================================================ + # PHASE 5: Write endpoints on FULL cache (measure O(n) scanning overhead) + # ============================================================ + echo "" + log_section "PHASE 5: Write Endpoints with FULL Cache" + echo "[INFO] Testing write endpoints with full cache" + echo "[INFO] Using unique type to ensure each write must scan ALL ${CACHE_FILL_SIZE} entries (pure O(n) scanning overhead)." + + # Cache is already full from Phase 3 - reuse it without refilling + # This measures worst-case invalidation: O(n) scanning all 1000 entries without finding matches + test_create_endpoint_full + test_update_endpoint_full + test_patch_endpoint_full + test_set_endpoint_full + test_unset_endpoint_full + test_overwrite_endpoint_full + test_release_endpoint_full + test_delete_endpoint_full # Uses objects from create_full test + + # Generate report + generate_report + + # Skip cleanup - leave test objects in database for inspection + # cleanup_test_objects + + # Calculate total runtime + local end_time=$(date +%s) + local total_seconds=$((end_time - start_time)) + local minutes=$((total_seconds / 60)) + local seconds=$((total_seconds % 60)) + + # Summary + log_header "Test Summary" + echo "" + echo " Total Tests: ${TOTAL_TESTS}" + echo -e " ${GREEN}Passed: ${PASSED_TESTS}${NC}" + echo -e " ${RED}Failed: ${FAILED_TESTS}${NC}" + echo -e " ${YELLOW}Skipped: ${SKIPPED_TESTS}${NC}" + echo " Total Runtime: ${minutes}m ${seconds}s" + echo "" + + if [ $FAILED_TESTS -gt 0 ]; then + echo -e "${RED}Some tests failed. Often, these are transient errors that do not affect the stats measurements such as a clock skew.${NC}" + echo "" + else + echo -e "${GREEN}All tests passed! ✓${NC}" + echo "" + fi + + echo -e "📄 Full report available at: ${CYAN}${REPORT_FILE}${NC}" + echo -e "📋 Terminal log saved to: ${CYAN}${LOG_FILE}${NC}" + echo "" + echo -e "${YELLOW}Remember to clean up test objects from MongoDB!${NC}" + echo "" +} + +# Run main function and capture output to log file (strip ANSI colors from log) +main "$@" 2>&1 | tee >(sed 's/\x1b\[[0-9;]*m//g' > "$LOG_FILE") diff --git a/cache/__tests__/cache-metrics.sh b/cache/__tests__/cache-metrics.sh new file mode 100755 index 00000000..a9e3787f --- /dev/null +++ b/cache/__tests__/cache-metrics.sh @@ -0,0 +1,2713 @@ +#!/bin/bash + +################################################################################ +# RERUM Cache Comprehensive Metrics & Functionality Test +# +# Combines integration, performance, and limit enforcement testing +# Produces: +# - cache/docs/CACHE_METRICS_REPORT.md (performance analysis) +# - cache/docs/CACHE_METRICS.log (terminal output capture) +# +# Author: thehabes +# Date: October 22, 2025 +################################################################################ + +# Configuration +BASE_URL="${BASE_URL:-http://localhost:3001}" +API_BASE="${BASE_URL}/v1" +AUTH_TOKEN="" + +CACHE_FILL_SIZE=1000 +WARMUP_ITERATIONS=20 +NUM_WRITE_TESTS=100 + +RED='\033[0;31m' +GREEN='\033[0;32m' +YELLOW='\033[1;33m' +BLUE='\033[0;34m' +CYAN='\033[0;36m' +MAGENTA='\033[0;35m' +NC='\033[0m' + +TOTAL_TESTS=0 +PASSED_TESTS=0 +FAILED_TESTS=0 +SKIPPED_TESTS=0 + +declare -A ENDPOINT_COLD_TIMES +declare -A ENDPOINT_WARM_TIMES +declare -A ENDPOINT_STATUS +declare -A ENDPOINT_DESCRIPTIONS + +declare -a CREATED_IDS=() +declare -A CREATED_OBJECTS + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)" +REPORT_FILE="$REPO_ROOT/cache/docs/CACHE_METRICS_REPORT.md" +LOG_FILE="$REPO_ROOT/cache/docs/CACHE_METRICS.log" + +################################################################################ +# Helper Functions +################################################################################ + +log_header() { + echo "" + echo -e "${CYAN}═══════════════════════════════════════════════════════════════════════${NC}" + echo -e "${CYAN} $1${NC}" + echo -e "${CYAN}═══════════════════════════════════════════════════════════════════════${NC}" + echo "" +} + +log_section() { + echo "" + echo -e "${MAGENTA}▓▓▓ $1 ▓▓▓${NC}" + echo "" +} + +log_info() { + echo -e "${BLUE}[INFO]${NC} $1" +} + +log_success() { + echo -e "${GREEN}[PASS]${NC} $1" + ((PASSED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_failure() { + echo -e "${RED}[FAIL]${NC} $1" + ((FAILED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_skip() { + echo -e "${YELLOW}[SKIP]${NC} $1" + ((SKIPPED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_warning() { + echo -e "${YELLOW}[WARN]${NC} $1" +} + +log_overhead() { + local overhead=$1 + shift # Remove first argument, rest is the message + local message="$@" + + if [ $overhead -le 0 ]; then + echo -e "${GREEN}[PASS]${NC} $message" + else + echo -e "${YELLOW}[PASS]${NC} $message" + fi +} + +check_wsl2_time_sync() { + # Check if running on WSL2 + if grep -qEi "(Microsoft|WSL)" /proc/version &> /dev/null; then + log_info "WSL2 detected - checking system time synchronization..." + + # Try to sync hardware clock to system time (requires sudo) + if command -v hwclock &> /dev/null; then + if sudo -n hwclock -s &> /dev/null 2>&1; then + log_success "System time synchronized with hardware clock" + else + log_warning "Could not sync hardware clock (sudo required)" + log_info "To fix clock skew issues, run: sudo hwclock -s" + log_info "Continuing anyway - some timing measurements may show warnings" + fi + else + log_info "hwclock not available - skipping time sync" + fi + fi +} + +check_server() { + log_info "Checking server connectivity at ${BASE_URL}..." + if ! curl -s -f "${BASE_URL}" > /dev/null 2>&1; then + echo -e "${RED}ERROR: Cannot connect to server at ${BASE_URL}${NC}" + echo "Please start the server with: npm start" + exit 1 + fi + log_success "Server is running at ${BASE_URL}" +} + +get_auth_token() { + log_header "Authentication Setup" + + echo "" + echo "This test requires a valid Auth0 bearer token to test write operations." + echo "Please obtain a fresh token from: https://devstore.rerum.io/" + echo "" + echo "Remember to delete your created junk and deleted junk. Run the following commands" + echo "with mongosh for whatever MongoDB you are writing into:" + echo "" + echo " db.alpha.deleteMany({\"__rerum.generatedBy\": \"YOUR_BEARER_AGENT\"});" + echo " db.alpha.deleteMany({\"__deleted.object.__rerum.generatedBy\": \"YOUR_BEARER_AGENT\"});" + echo "" + echo -n "Enter your bearer token (or press Enter to skip): " + read -r AUTH_TOKEN + + if [ -z "$AUTH_TOKEN" ]; then + echo -e "${RED}ERROR: No token provided. Cannot proceed with testing.${NC}" + echo "Tests require authentication for write operations (create, update, delete)." + exit 1 + fi + + log_info "Validating token..." + if ! echo "$AUTH_TOKEN" | grep -qE '^[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+$'; then + echo -e "${RED}ERROR: Token is not a valid JWT format${NC}" + echo "Expected format: header.payload.signature" + exit 1 + fi + + local payload=$(echo "$AUTH_TOKEN" | cut -d. -f2) + local padded_payload="${payload}$(printf '%*s' $((4 - ${#payload} % 4)) '' | tr ' ' '=')" + local decoded_payload=$(echo "$padded_payload" | base64 -d 2>/dev/null) + + if [ -z "$decoded_payload" ]; then + echo -e "${RED}ERROR: Failed to decode JWT payload${NC}" + exit 1 + fi + + local exp=$(echo "$decoded_payload" | grep -o '"exp":[0-9]*' | cut -d: -f2) + + if [ -z "$exp" ]; then + echo -e "${YELLOW}WARNING: Token does not contain 'exp' field${NC}" + echo "Proceeding anyway, but token may be rejected by server..." + else + local current_time=$(date +%s) + if [ "$exp" -lt "$current_time" ]; then + echo -e "${RED}ERROR: Token is expired${NC}" + echo "Token expired at: $(date -d @$exp)" + echo "Current time: $(date -d @$current_time)" + echo "Please obtain a fresh token from: https://devstore.rerum.io/" + exit 1 + else + local time_remaining=$((exp - current_time)) + local hours=$((time_remaining / 3600)) + local minutes=$(( (time_remaining % 3600) / 60 )) + log_success "Token is valid (expires in ${hours}h ${minutes}m)" + fi + fi +} + +measure_endpoint() { + local endpoint=$1 + local method=$2 + local data=$3 + local description=$4 + local needs_auth=${5:-false} + local timeout=${6:-10} + + local start=$(date +%s%3N) + if [ "$needs_auth" == "true" ]; then + local response=$(curl -s --max-time $timeout -w "\n%{http_code}" -X "$method" "${endpoint}" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + ${data:+-d "$data"} 2>/dev/null) + else + local response=$(curl -s --max-time $timeout -w "\n%{http_code}" -X "$method" "${endpoint}" \ + -H "Content-Type: application/json" \ + ${data:+-d "$data"} 2>/dev/null) + fi + local end=$(date +%s%3N) + local time=$((end - start)) + local http_code=$(echo "$response" | tail -n1) + local response_body=$(echo "$response" | head -n-1) + + # Validate timing (protect against clock skew/adjustment) + if [ "$time" -lt 0 ]; then + # Clock went backward during operation + local negative_time=$time # Preserve negative value for logging + + # Check if HTTP request actually succeeded before treating as error + if [ -z "$http_code" ] || [ "$http_code" == "000" ]; then + # No HTTP code at all - actual timeout/failure + http_code="000" + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} $endpoint" >&2 + echo -e " Start: ${start}ms, End: ${end}ms, Calculated: ${negative_time}ms (NEGATIVE!)" >&2 + echo -e " HTTP Code: ${RED}${http_code} (NO RESPONSE)${NC}" >&2 + echo -e " ${RED}Result: Actual timeout/connection failure${NC}" >&2 + time=0 + else + # HTTP succeeded but timing is invalid - use 0ms as placeholder + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} $endpoint" >&2 + echo -e " Start: ${start}ms, End: ${end}ms, Calculated: ${negative_time}ms (NEGATIVE!)" >&2 + echo -e " HTTP Code: ${GREEN}${http_code} (SUCCESS)${NC}" >&2 + echo -e " ${GREEN}Result: Operation succeeded, timing unmeasurable${NC}" >&2 + time=0 + fi + fi + + # Handle curl failure (connection timeout, etc) - only if we have no HTTP code + if [ -z "$http_code" ]; then + http_code="000" + # Log to stderr to avoid polluting the return value + echo "[WARN] Endpoint $endpoint timed out or connection failed" >&2 + fi + + echo "$time|$http_code|$response_body" +} + +# Clear cache +clear_cache() { + log_info "Clearing cache..." + + # Retry up to 3 times to handle concurrent cache population + local max_attempts=3 + local attempt=1 + local cache_length="" + + while [ $attempt -le $max_attempts ]; do + # Call /cache/clear endpoint (waits for sync before returning) + curl -s -X POST "${API_BASE}/api/cache/clear" > /dev/null 2>&1 + + # Sanity check: Verify cache is actually empty (use fast version - no need to wait for full sync) + local stats=$(get_cache_stats_fast) + cache_length=$(echo "$stats" | jq -r '.length' 2>/dev/null || echo "unknown") + + if [ "$cache_length" = "0" ]; then + log_info "Sanity check - Cache successfully cleared (length: 0)" + break + fi + + if [ $attempt -lt $max_attempts ]; then + log_warning "Cache length is ${cache_length} after clear attempt ${attempt}/${max_attempts}, retrying..." + attempt=$((attempt + 1)) + else + log_warning "Cache clear completed with ${cache_length} entries remaining after ${max_attempts} attempts" + log_info "This may be due to concurrent requests on the development server" + fi + sleep 3 + done +} + +# Fill cache to specified size with diverse queries (mix of matching and non-matching) +fill_cache() { + local target_size=$1 + log_info "Filling cache to $target_size entries with diverse read patterns..." + + # Track start time for runtime calculation + local fill_start_time=$(date +%s) + + # Strategy: Use parallel requests for faster cache filling + # Reduced batch size and added delays to prevent overwhelming the server + local batch_size=100 # Reduced from 100 to prevent connection exhaustion + local completed=0 + local successful_requests=0 + local failed_requests=0 + local timeout_requests=0 + + # Track requests per endpoint type for debugging + local query_requests=0 + local search_requests=0 + local search_phrase_requests=0 + local id_requests=0 + local history_requests=0 + local since_requests=0 + + while [ $completed -lt $target_size ]; do + local batch_end=$((completed + batch_size)) + if [ $batch_end -gt $target_size ]; then + batch_end=$target_size + fi + + local batch_success=0 + local batch_fail=0 + local batch_timeout=0 + + # Launch batch requests in parallel using background jobs + for count in $(seq $completed $((batch_end - 1))); do + ( + # Create truly unique cache entries by making each query unique + # Use timestamp + count + random + PID to ensure uniqueness even in parallel execution + local unique_id="CacheFill_${count}_${RANDOM}_$$_$(date +%s%N)" + + local endpoint="" + local data="" + local method="POST" + + # Calculate how many GET requests we can make for each endpoint type + # Phase 2 releases indices 0-49 (immutable but still exist), deletes indices 50-99 + # Use indices 0-49 (50 IDs) for GET endpoints + local num_ids=50 + local max_id_requests=$num_ids # Can use each ID once for /id + local max_history_requests=$num_ids # Can use each ID once for /history + local max_since_requests=$num_ids # Can use each ID once for /since + + # Count how many GET requests of each type we've made so far + # We rotate through patterns 0-5 (6 total) + local id_requests_so_far=$(( (count / 6) + (count % 6 >= 3 ? 1 : 0) )) + local history_requests_so_far=$(( (count / 6) + (count % 6 >= 4 ? 1 : 0) )) + local since_requests_so_far=$(( (count / 6) + (count % 6 >= 5 ? 1 : 0) )) + + # Determine which pattern to use + local pattern=$((count % 6)) + + # First 6 requests create the cache entries we'll test for hits in Phase 4 + if [ $count -lt 6 ]; then + # These will be queried in Phase 4 for cache hits + if [ $pattern -eq 0 ]; then + endpoint="${API_BASE}/api/query" + data="{\"type\":\"CreatePerfTest\"}" + query_requests=$((query_requests + 1)) + elif [ $pattern -eq 1 ]; then + endpoint="${API_BASE}/api/search" + data="{\"searchText\":\"annotation\"}" + search_requests=$((search_requests + 1)) + elif [ $pattern -eq 2 ]; then + endpoint="${API_BASE}/api/search/phrase" + data="{\"searchText\":\"test annotation\"}" + search_phrase_requests=$((search_phrase_requests + 1)) + elif [ $pattern -eq 3 ]; then + # Use a known object ID from CREATED_IDS array (indices 0-49, released but still exist) + local id_offset=$((count % 50)) # Cycle through 0-49 for diversity + if [ ${#CREATED_IDS[@]} -gt $id_offset ]; then + endpoint="${CREATED_IDS[$id_offset]}" + method="GET" + data="" + id_requests=$((id_requests + 1)) + else + # Fallback to unique query if no IDs available + endpoint="${API_BASE}/api/query" + data="{\"type\":\"$unique_id\"}" + query_requests=$((query_requests + 1)) + fi + elif [ $pattern -eq 4 ]; then + # Use a known object ID for history (indices 0-49, released but still exist) + local released_offset=$((count % 50)) # Cycle through 0-49 + if [ ${#CREATED_IDS[@]} -gt $released_offset ]; then + local obj_id=$(echo "${CREATED_IDS[$released_offset]}" | sed 's|.*/||') + endpoint="${API_BASE}/history/${obj_id}" + method="GET" + data="" + history_requests=$((history_requests + 1)) + else + # Fallback to unique search if no IDs available + endpoint="${API_BASE}/api/search" + data="{\"searchText\":\"$unique_id\"}" + search_requests=$((search_requests + 1)) + fi + else + # Use a known object ID for since (indices 0-49, released but still exist) + local released_offset=$((count % 50)) # Cycle through 0-49 + if [ ${#CREATED_IDS[@]} -gt $released_offset ]; then + local since_id=$(echo "${CREATED_IDS[$released_offset]}" | sed 's|.*/||') + endpoint="${API_BASE}/since/${since_id}" + method="GET" + data="" + since_requests=$((since_requests + 1)) + else + # Fallback to unique search phrase if no IDs available + endpoint="${API_BASE}/api/search/phrase" + data="{\"searchText\":\"$unique_id\"}" + search_phrase_requests=$((search_phrase_requests + 1)) + fi + fi + else + # For remaining requests: Create queries that will be invalidated by Phase 5 writes + # Strategy: Cycle through the 6 write operation types to ensure good distribution + # Each type gets ~166 cache entries (1000-6 / 6 types) + local write_type=$((count % 6)) + + if [ $write_type -eq 0 ]; then + # CreatePerfTest queries - will be invalidated by create operations + endpoint="${API_BASE}/api/query" + data="{\"type\":\"CreatePerfTest\",\"limit\":$((count / 6))}" + query_requests=$((query_requests + 1)) + elif [ $write_type -eq 1 ]; then + # UpdateTest queries - will be invalidated by update operations + endpoint="${API_BASE}/api/query" + data="{\"type\":\"UpdateTest\",\"limit\":$((count / 6))}" + query_requests=$((query_requests + 1)) + elif [ $write_type -eq 2 ]; then + # PatchTest queries - will be invalidated by patch operations + endpoint="${API_BASE}/api/query" + data="{\"type\":\"PatchTest\",\"limit\":$((count / 6))}" + query_requests=$((query_requests + 1)) + elif [ $write_type -eq 3 ]; then + # SetTest queries - will be invalidated by set operations + endpoint="${API_BASE}/api/query" + data="{\"type\":\"SetTest\",\"limit\":$((count / 6))}" + query_requests=$((query_requests + 1)) + elif [ $write_type -eq 4 ]; then + # UnsetTest queries - will be invalidated by unset operations + endpoint="${API_BASE}/api/query" + data="{\"type\":\"UnsetTest\",\"limit\":$((count / 6))}" + query_requests=$((query_requests + 1)) + else + # OverwriteTest queries - will be invalidated by overwrite operations + endpoint="${API_BASE}/api/query" + data="{\"type\":\"OverwriteTest\",\"limit\":$((count / 6))}" + query_requests=$((query_requests + 1)) + fi + fi + + # Make request with timeout and error checking + # --max-time 35: timeout after 35 seconds + # --connect-timeout 15: timeout connection after 15 seconds + # -w '%{http_code}': output HTTP status code + local http_code="" + if [ "$method" = "GET" ]; then + http_code=$(curl -s -X GET "$endpoint" \ + --max-time 10 \ + --connect-timeout 10 \ + -w '%{http_code}' \ + -o /dev/null 2>&1) + else + http_code=$(curl -s -X POST "$endpoint" \ + -H "Content-Type: application/json" \ + -d "$data" \ + --max-time 10 \ + --connect-timeout 10 \ + -w '%{http_code}' \ + -o /dev/null 2>&1) + fi + + local exit_code=$? + + # Check result and write to temp file for parent process to read + if [ $exit_code -eq 28 ]; then + # Timeout + echo "timeout" >> /tmp/cache_fill_results_$$.tmp + elif [ $exit_code -ne 0 ]; then + # Other curl error + echo "fail:$exit_code" >> /tmp/cache_fill_results_$$.tmp + elif [ "$http_code" = "200" ]; then + # Success + echo "success" >> /tmp/cache_fill_results_$$.tmp + else + # HTTP error + echo "fail:http_$http_code" >> /tmp/cache_fill_results_$$.tmp + fi + ) & + done + + # Wait for all background jobs to complete + wait + + # Count results from temp file + batch_success=0 + batch_timeout=0 + batch_fail=0 + if [ -f /tmp/cache_fill_results_$$.tmp ]; then + batch_success=$(grep -c "^success$" /tmp/cache_fill_results_$$.tmp 2>/dev/null || echo "0") + batch_timeout=$(grep -c "^timeout$" /tmp/cache_fill_results_$$.tmp 2>/dev/null || echo "0") + batch_fail=$(grep -c "^fail:" /tmp/cache_fill_results_$$.tmp 2>/dev/null || echo "0") + rm /tmp/cache_fill_results_$$.tmp + fi + + # Ensure variables are clean integers (strip any whitespace/newlines) + batch_success=$(echo "$batch_success" | tr -d '\n\r' | grep -o '[0-9]*' | head -1) + batch_timeout=$(echo "$batch_timeout" | tr -d '\n\r' | grep -o '[0-9]*' | head -1) + batch_fail=$(echo "$batch_fail" | tr -d '\n\r' | grep -o '[0-9]*' | head -1) + batch_success=${batch_success:-0} + batch_timeout=${batch_timeout:-0} + batch_fail=${batch_fail:-0} + + successful_requests=$((successful_requests + batch_success)) + timeout_requests=$((timeout_requests + batch_timeout)) + failed_requests=$((failed_requests + batch_fail)) + + completed=$batch_end + local pct=$((completed * 100 / target_size)) + echo -ne "\r Progress: $completed/$target_size requests sent (${pct}%) | Success: $successful_requests | Timeout: $timeout_requests | Failed: $failed_requests " + + # Add small delay between batches to prevent overwhelming the server + sleep 0.5 + done + echo "" + + # Calculate total runtime + local fill_end_time=$(date +%s) + local fill_runtime=$((fill_end_time - fill_start_time)) + + log_info "Request Statistics:" + log_info " Total requests sent: $completed" + log_info " Successful (200 OK): $successful_requests" + log_info " Total Runtime: ${fill_runtime} seconds" + log_info " Timeouts: $timeout_requests" + log_info " Failed/Errors: $failed_requests" + + log_info "Sanity check - Verifying cache size after fill..." + local final_stats=$(get_cache_stats) + local final_size=$(echo "$final_stats" | jq -r '.length' 2>/dev/null || echo "0") + local max_length=$(echo "$final_stats" | jq -r '.maxLength' 2>/dev/null || echo "0") + local total_sets=$(echo "$final_stats" | jq -r '.sets' 2>/dev/null || echo "0") + local total_hits=$(echo "$final_stats" | jq -r '.hits' 2>/dev/null || echo "0") + local total_misses=$(echo "$final_stats" | jq -r '.misses' 2>/dev/null || echo "0") + local evictions=$(echo "$final_stats" | jq -r '.evictions' 2>/dev/null || echo "0") + + log_info "Sanity check - Cache stats after fill:" + log_info " Cache size: ${final_size} / ${max_length} (target: ${target_size})" + log_info " Total cache.set() calls: ${total_sets}" + log_info " Cache hits: ${total_hits}" + log_info " Cache misses: ${total_misses}" + log_info " Evictions: ${evictions}" + + local expected_sets=$successful_requests + if [ "$total_sets" -lt "$expected_sets" ]; then + local uncached_count=$(($expected_sets - $total_sets)) + log_info "Note: ${uncached_count} of ${expected_sets} successful responses were not cached" + fi + + if [ "$final_size" -lt "$target_size" ] && [ "$final_size" -eq "$max_length" ]; then + log_failure "Cache is full at max capacity (${max_length}) but target was ${target_size}" + log_info "To test with ${target_size} entries, set CACHE_MAX_LENGTH=${target_size} in .env and restart server." + exit 1 + elif [ "$final_size" -lt "$target_size" ]; then + log_failure "Cache size (${final_size}) is less than target (${target_size})" + log_info "Requests sent: ${completed}, Successful: ${successful_requests}, Cache.set() calls: ${total_sets}" + exit 1 + fi + + log_success "Cache filled to ${final_size} entries" + + sleep 1 +} + +# Warm up the system (JIT compilation, connection pools, OS caches) +warmup_system() { + log_info "Warming up system (JIT compilation, connection pools, OS caches)..." + log_info "Running $WARMUP_ITERATIONS warmup operations..." + + local count=0 + for i in $(seq 1 $WARMUP_ITERATIONS); do + curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d '{"type":"WarmupTest","value":"warmup"}' > /dev/null 2>&1 + count=$((count + 1)) + + if [ $((i % 5)) -eq 0 ]; then + echo -ne "\r Warmup progress: $count/$WARMUP_ITERATIONS " + fi + done + echo "" + + log_success "System warmed up" + + clear_cache +} + +# Get cache stats (fast version - may not be synced across workers) +get_cache_stats_fast() { + curl -s "${API_BASE}/api/cache/stats" 2>/dev/null +} + +# Get cache stats (with sync wait for accurate cross-worker aggregation) +get_cache_stats() { + log_info "Waiting for cache stats to sync across all PM2 workers (8 seconds. HOLD!)..." >&2 + sleep 8 + curl -s "${API_BASE}/api/cache/stats" 2>/dev/null +} + +# Helper: Create a test object and track it for cleanup +# Returns the object ID +create_test_object() { + local data=$1 + local description=${2:-"Creating test object"} + + local response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$data" 2>/dev/null) + + local obj_id=$(echo "$response" | jq -r '.["@id"]' 2>/dev/null) + + if [ -n "$obj_id" ] && [ "$obj_id" != "null" ]; then + CREATED_IDS+=("$obj_id") + CREATED_OBJECTS["$obj_id"]="$response" + sleep 1 + fi + + echo "$obj_id" +} + +# Create test object and return the full object (not just ID) +create_test_object_with_body() { + local data=$1 + local description=${2:-"Creating test object"} + + local response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$data" 2>/dev/null) + + local obj_id=$(echo "$response" | jq -r '.["@id"]' 2>/dev/null) + + if [ -n "$obj_id" ] && [ "$obj_id" != "null" ]; then + CREATED_IDS+=("$obj_id") + CREATED_OBJECTS["$obj_id"]="$response" + sleep 1 # Allow DB and cache to process + echo "$response" + else + echo "" + fi +} + +################################################################################ +# Functionality Tests +################################################################################ + +# Query endpoint - cold cache test +test_query_endpoint_cold() { + log_section "Testing /api/query Endpoint (Cold Cache)" + + ENDPOINT_DESCRIPTIONS["query"]="Query database with filters" + + log_info "Testing query with cold cache..." + # Use the same query that will be cached in Phase 3 and tested in Phase 4 + local result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"CreatePerfTest"}' "Query for CreatePerfTest") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["query"]=$cold_time + + # HTTP 200 = success (even if timing was 0ms due to clock skew) + # HTTP 000 = actual failure (no HTTP response at all) + if [ "$cold_code" == "200" ]; then + if [ "$cold_time" == "0" ]; then + log_success "Query endpoint functional (timing unavailable due to clock skew)" + else + log_success "Query endpoint functional (${cold_time}ms)" + fi + ENDPOINT_STATUS["query"]="✅ Functional" + else + log_failure "Query endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["query"]="❌ Failed" + fi +} + +# Query endpoint - warm cache test +test_query_endpoint_warm() { + log_section "Testing /api/query Endpoint (Warm Cache)" + + log_info "Testing query with warm cache..." + local result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"Annotation","limit":5}' "Query for Annotations") + local warm_time=$(echo "$result" | cut -d'|' -f1) + local warm_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_WARM_TIMES["query"]=$warm_time + + if [ "$warm_code" == "200" ]; then + local cold_time=${ENDPOINT_COLD_TIMES["query"]} + local speedup=$((cold_time - warm_time)) + if [ $warm_time -lt $cold_time ]; then + log_success "Cache hit faster by ${speedup}ms (cold: ${cold_time}ms, warm: ${warm_time}ms)" + else + log_warning "Cache hit not faster (cold: ${cold_time}ms, warm: ${warm_time}ms)" + fi + fi +} + +test_search_endpoint() { + log_section "Testing /api/search Endpoint" + + ENDPOINT_DESCRIPTIONS["search"]="Full-text search across documents" + + clear_cache + + # Test search functionality with the same query that will be cached in Phase 3 and tested in Phase 4 + log_info "Testing search with cold cache..." + local result=$(measure_endpoint "${API_BASE}/api/search" "POST" '{"searchText":"annotation"}' "Search for 'annotation'") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["search"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "Search endpoint functional (${cold_time}ms)" + ENDPOINT_STATUS["search"]="✅ Functional" + elif [ "$cold_code" == "501" ]; then + log_skip "Search endpoint not implemented or requires MongoDB Atlas Search indexes" + ENDPOINT_STATUS["search"]="⚠️ Requires Setup" + ENDPOINT_COLD_TIMES["search"]="N/A" + ENDPOINT_WARM_TIMES["search"]="N/A" + else + log_failure "Search endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["search"]="❌ Failed" + fi +} + +test_id_endpoint() { + log_section "Testing /id/:id Endpoint" + + ENDPOINT_DESCRIPTIONS["id"]="Retrieve object by ID" + + # Create test object to get an ID + local test_id=$(create_test_object '{"type":"IdTest","value":"test"}' "Creating test object") + + # Validate object creation + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for ID test" + ENDPOINT_STATUS["id"]="❌ Test Setup Failed" + ENDPOINT_COLD_TIMES["id"]="N/A" + ENDPOINT_WARM_TIMES["id"]="N/A" + return + fi + + clear_cache + + # Test ID retrieval with cold cache + log_info "Testing ID retrieval with cold cache..." + local result=$(measure_endpoint "$test_id" "GET" "" "Get object by ID") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["id"]=$cold_time + + # HTTP 200 = success (even if timing was 0ms due to clock skew) + # HTTP 000 = actual failure (no HTTP response at all) + if [ "$cold_code" != "200" ]; then + log_failure "ID endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["id"]="❌ Failed" + ENDPOINT_WARM_TIMES["id"]="N/A" + return + fi + + # Success - endpoint is functional + if [ "$cold_time" == "0" ]; then + log_success "ID endpoint functional (timing unavailable due to clock skew)" + else + log_success "ID endpoint functional" + fi + ENDPOINT_STATUS["id"]="✅ Functional" +} + +# Perform a single write operation and return time in milliseconds +perform_write_operation() { + local endpoint=$1 + local method=$2 + local body=$3 + + local start=$(date +%s%3N) + + local response=$(curl -s -w "\n%{http_code}" -X "$method" "${API_BASE}/api/${endpoint}" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "${body}" 2>/dev/null) + + local end=$(date +%s%3N) + local http_code=$(echo "$response" | tail -n1) + local time=$((end - start)) + local response_body=$(echo "$response" | head -n-1) + + # Check for success codes first + local success=0 + if [ "$endpoint" = "create" ] && [ "$http_code" = "201" ]; then + success=1 + elif [ "$http_code" = "200" ]; then + success=1 + fi + + # If HTTP request succeeded but timing is invalid (clock skew), use 0 as placeholder time + # This allows the operation to count as successful even though we can't measure it + if [ "$time" -lt 0 ]; then + local negative_time=$time # Preserve negative value for logging + + if [ $success -eq 1 ]; then + # Clock skew but HTTP succeeded - mark as successful with 0ms timing + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} ${API_BASE}/api/${endpoint}" >&2 + echo -e " Start: ${start}ms, End: ${end}ms, Calculated: ${negative_time}ms (NEGATIVE!)" >&2 + echo -e " HTTP Code: ${GREEN}${http_code} (SUCCESS)${NC}" >&2 + echo -e " ${GREEN}Result: Operation succeeded, timing unmeasurable${NC}" >&2 + echo "0|$http_code|clock_skew" + return + else + # Actual failure (bad HTTP code) + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} ${API_BASE}/api/${endpoint}" >&2 + echo -e " Start: ${start}ms, End: ${end}ms, Calculated: ${negative_time}ms (NEGATIVE!)" >&2 + echo -e " HTTP Code: ${RED}${http_code} (FAILURE)${NC}" >&2 + echo -e " ${RED}Result: Request failed (bad HTTP status)${NC}" >&2 + echo "-1|$http_code|" + return + fi + fi + + if [ $success -eq 0 ]; then + echo "-1|$http_code|" + return + fi + + echo "$time|$http_code|$response_body" +} + +# Run performance test for a write endpoint +run_write_performance_test() { + local endpoint_name=$1 + local endpoint_path=$2 + local method=$3 + local get_body_func=$4 + local num_tests=${5:-100} + + log_info "Running $num_tests $endpoint_name operations..." >&2 + + declare -a times=() + local total_time=0 + local failed_count=0 + local clock_skew_count=0 + + # For create endpoint, collect IDs directly into global array + local collect_ids=0 + [ "$endpoint_name" = "create" ] && collect_ids=1 + + for i in $(seq 1 $num_tests); do + local body=$($get_body_func) + local result=$(perform_write_operation "$endpoint_path" "$method" "$body") + + local time=$(echo "$result" | cut -d'|' -f1) + local http_code=$(echo "$result" | cut -d'|' -f2) + local response_body=$(echo "$result" | cut -d'|' -f3-) + + # Check if operation actually failed (marked as -1) + if [ "$time" = "-1" ]; then + failed_count=$((failed_count + 1)) + elif [ "$response_body" = "clock_skew" ]; then + # Clock skew with successful HTTP code - count as success but note it + clock_skew_count=$((clock_skew_count + 1)) + # Don't add to times array (0ms is not meaningful) or total_time + + # Store created ID directly to global array for cleanup + if [ $collect_ids -eq 1 ] && [ -n "$response_body" ]; then + local obj_id=$(echo "$response_body" | grep -o '"@id":"[^"]*"' | head -1 | cut -d'"' -f4) + if [ -n "$obj_id" ]; then + CREATED_IDS+=("$obj_id") + fi + fi + else + # Normal successful operation with valid timing + times+=($time) + total_time=$((total_time + time)) + + # Store created ID directly to global array for cleanup + if [ $collect_ids -eq 1 ] && [ -n "$response_body" ]; then + local obj_id=$(echo "$response_body" | grep -o '"@id":"[^"]*"' | head -1 | cut -d'"' -f4) + if [ -n "$obj_id" ]; then + CREATED_IDS+=("$obj_id") + fi + fi + fi + + # Progress indicator + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$num_tests operations completed " >&2 + fi + done + echo "" >&2 + + local successful=$((num_tests - failed_count)) + local measurable=$((${#times[@]})) + + if [ $successful -eq 0 ]; then + log_warning "All $endpoint_name operations failed!" >&2 + echo "0|0|0|0" + return 1 + fi + + # Calculate statistics only from operations with valid timing + local avg_time=0 + local median_time=0 + local min_time=0 + local max_time=0 + + if [ $measurable -gt 0 ]; then + avg_time=$((total_time / measurable)) + + # Calculate median + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median_idx=$((measurable / 2)) + median_time=${sorted[$median_idx]} + + # Calculate min/max + min_time=${sorted[0]} + max_time=${sorted[$((measurable - 1))]} + fi + + log_success "$successful/$num_tests successful" >&2 + + if [ $measurable -gt 0 ]; then + echo " Total: ${total_time}ms, Average: ${avg_time}ms, Median: ${median_time}ms, Min: ${min_time}ms, Max: ${max_time}ms" >&2 + else + echo " (timing data unavailable - all operations affected by clock skew)" >&2 + fi + + if [ $failed_count -gt 0 ]; then + log_warning " Failed operations: $failed_count" >&2 + fi + + if [ $clock_skew_count -gt 0 ]; then + log_warning " Clock skew detections (timing unmeasurable but HTTP succeeded): $clock_skew_count" >&2 + fi + + # Write stats to temp file (so they persist when function is called directly, not in subshell) + echo "$avg_time|$median_time|$min_time|$max_time" > /tmp/rerum_write_stats +} + +test_history_endpoint() { + log_section "Testing /history/:id Endpoint" + + ENDPOINT_DESCRIPTIONS["history"]="Get object version history" + + # Create and update an object to generate history + local create_response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d '{"type":"HistoryTest","version":1}' 2>/dev/null) + + local test_id=$(echo "$create_response" | jq -r '.["@id"]' 2>/dev/null) + CREATED_IDS+=("$test_id") + + # Wait for object to be available + sleep 2 + + # Extract just the ID portion for the history endpoint + local obj_id=$(echo "$test_id" | sed 's|.*/||') + + # Skip history test if object creation failed + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + log_warning "Skipping history test - object creation failed" + return + fi + + # Get the full object and update to create history + local full_object=$(curl -s "$test_id" 2>/dev/null) + local update_body=$(echo "$full_object" | jq '. + {version: 2}' 2>/dev/null) + + curl -s -X PUT "${API_BASE}/api/update" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$update_body" > /dev/null 2>&1 + + clear_cache + + # Test history with cold cache + log_info "Testing history with cold cache..." + local result=$(measure_endpoint "${API_BASE}/history/${obj_id}" "GET" "" "Get object history") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["history"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "History endpoint functional" + ENDPOINT_STATUS["history"]="✅ Functional" + else + log_failure "History endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["history"]="❌ Failed" + fi +} + +test_since_endpoint() { + log_section "Testing /since/:id Endpoint" + + ENDPOINT_DESCRIPTIONS["since"]="Get objects modified since timestamp" + + # Create a test object to use for since lookup + local create_response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d '{"type":"SinceTest","value":"test"}' 2>/dev/null) + + local test_id=$(echo "$create_response" | jq -r '.["@id"]' 2>/dev/null | sed 's|.*/||') + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Cannot create test object for since test" + ENDPOINT_STATUS["since"]="❌ Test Setup Failed" + return + fi + + CREATED_IDS+=("${API_BASE}/id/${test_id}") + + # The clear_cache function waits internally for all workers to sync (5.5s) + clear_cache + + # Test with cold cache + log_info "Testing since with cold cache..." + local result=$(measure_endpoint "${API_BASE}/since/$test_id" "GET" "" "Get since info") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["since"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "Since endpoint functional" + ENDPOINT_STATUS["since"]="✅ Functional" + else + log_failure "Since endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["since"]="❌ Failed" + fi +} + +test_search_phrase_endpoint() { + log_section "Testing /api/search/phrase Endpoint" + + ENDPOINT_DESCRIPTIONS["searchPhrase"]="Phrase search across documents" + + clear_cache + + # Test search phrase functionality with the same query that will be cached in Phase 3 and tested in Phase 4 + log_info "Testing search phrase with cold cache..." + local result=$(measure_endpoint "${API_BASE}/api/search/phrase" "POST" '{"searchText":"test annotation"}' "Phrase search") + local cold_time=$(echo "$result" | cut -d'|' -f1) + local cold_code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["searchPhrase"]=$cold_time + + if [ "$cold_code" == "200" ]; then + log_success "Search phrase endpoint functional (${cold_time}ms)" + ENDPOINT_STATUS["searchPhrase"]="✅ Functional" + elif [ "$cold_code" == "501" ]; then + log_skip "Search phrase endpoint not implemented or requires MongoDB Atlas Search indexes" + ENDPOINT_STATUS["searchPhrase"]="⚠️ Requires Setup" + ENDPOINT_COLD_TIMES["searchPhrase"]="N/A" + ENDPOINT_WARM_TIMES["searchPhrase"]="N/A" + else + log_failure "Search phrase endpoint failed (HTTP $cold_code)" + ENDPOINT_STATUS["searchPhrase"]="❌ Failed" + fi +} + +################################################################################ +# Cleanup +################################################################################ + +cleanup_test_objects() { + if [ ${#CREATED_IDS[@]} -gt 0 ]; then + log_section "Cleaning Up Test Objects" + log_info "Deleting ${#CREATED_IDS[@]} test objects..." + + for obj_id in "${CREATED_IDS[@]}"; do + curl -s -X DELETE "$obj_id" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" > /dev/null 2>&1 + done + + log_success "Cleanup complete" + fi +} + +################################################################################ +# Report Generation +################################################################################ + +generate_report() { + log_header "Generating Report" + + local cache_stats=$(get_cache_stats) + local cache_hits=$(echo "$cache_stats" | grep -o '"hits":[0-9]*' | cut -d: -f2) + local cache_misses=$(echo "$cache_stats" | grep -o '"misses":[0-9]*' | cut -d: -f2) + local cache_size=$(echo "$cache_stats" | grep -o '"length":[0-9]*' | cut -d: -f2) + + cat > "$REPORT_FILE" << EOF +# RERUM Cache Metrics & Functionality Report + +**Generated**: $(date) +**Test Duration**: Full integration and performance suite +**Server**: ${BASE_URL} + +--- + +## Executive Summary + +**Overall Test Results**: ${PASSED_TESTS} passed, ${FAILED_TESTS} failed, ${SKIPPED_TESTS} skipped (${TOTAL_TESTS} total) + +### Cache Performance Summary + +| Metric | Value | +|--------|-------| +| Cache Hits | ${cache_hits:-0} | +| Cache Misses | ${cache_misses:-0} | +| Hit Rate | $(echo "$cache_stats" | grep -o '"hitRate":"[^"]*"' | cut -d'"' -f4) | +| Cache Size | ${cache_size:-0} entries | + +--- + +## Endpoint Functionality Status + +| Endpoint | Status | Description | +|----------|--------|-------------| +EOF + + # Add endpoint status rows + for endpoint in query search searchPhrase id history since create update patch set unset delete overwrite; do + local status="${ENDPOINT_STATUS[$endpoint]:-⚠️ Not Tested}" + local desc="${ENDPOINT_DESCRIPTIONS[$endpoint]:-}" + echo "| \`/$endpoint\` | $status | $desc |" >> "$REPORT_FILE" + done + + cat >> "$REPORT_FILE" << EOF + +--- + +## Read Performance Analysis + +### Cache Impact on Read Operations + +| Endpoint | Cold Cache (DB) | Warm Cache (Memory) | Speedup | Benefit | +|----------|-----------------|---------------------|---------|---------| +EOF + + # Add read performance rows + for endpoint in query search searchPhrase id history since; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]:-N/A}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]:-N/A}" + + if [[ "$cold" != "N/A" && "$warm" != "N/A" && "$cold" =~ ^[0-9]+$ && "$warm" =~ ^[0-9]+$ ]]; then + local speedup=$((cold - warm)) + local benefit="" + if [ $speedup -gt 10 ]; then + benefit="✅ High" + elif [ $speedup -gt 5 ]; then + benefit="✅ Moderate" + elif [ $speedup -gt 0 ]; then + benefit="✅ Low" + else + benefit="⚠️ None" + fi + echo "| \`/$endpoint\` | ${cold}ms | ${warm}ms | -${speedup}ms | $benefit |" >> "$REPORT_FILE" + else + echo "| \`/$endpoint\` | ${cold} | ${warm} | N/A | N/A |" >> "$REPORT_FILE" + fi + done + + cat >> "$REPORT_FILE" << EOF + +**Interpretation**: +- **Cold Cache**: First request hits database (cache miss) +- **Warm Cache**: Subsequent identical requests served from memory (cache hit) +- **Speedup**: Time saved per request when cache hit occurs +- **Benefit**: Overall impact assessment + +--- + +## Write Performance Analysis + +### Cache Overhead on Write Operations + +| Endpoint | Empty Cache | Full Cache (1000 entries) | Overhead | Impact | +|----------|-------------|---------------------------|----------|--------| +EOF + + # Add write performance rows + local has_negative_overhead=false + for endpoint in create update patch set unset delete overwrite; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]:-N/A}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]:-N/A}" + + if [[ "$cold" != "N/A" && "$warm" =~ ^[0-9]+$ ]]; then + local overhead=$((warm - cold)) + local impact="" + local overhead_display="" + + if [ $overhead -lt 0 ]; then + has_negative_overhead=true + overhead_display="${overhead}ms" + impact="✅ None" + elif [ $overhead -gt 10 ]; then + overhead_display="+${overhead}ms" + impact="⚠️ Moderate" + elif [ $overhead -gt 5 ]; then + overhead_display="+${overhead}ms" + impact="✅ Low" + else + overhead_display="+${overhead}ms" + impact="✅ Negligible" + fi + echo "| \`/$endpoint\` | ${cold}ms | ${warm}ms | ${overhead_display} | $impact |" >> "$REPORT_FILE" + elif [[ "$cold" != "N/A" ]]; then + echo "| \`/$endpoint\` | ${cold}ms | ${warm} | N/A | ✅ Write-only |" >> "$REPORT_FILE" + else + echo "| \`/$endpoint\` | ${cold} | ${warm} | N/A | N/A |" >> "$REPORT_FILE" + fi + done + + cat >> "$REPORT_FILE" << EOF + +**Interpretation**: +- **Empty Cache**: Write with no cache to invalidate +- **Full Cache**: Write with 1000 cached queries (cache invalidation occurs) +- **Overhead**: Additional time required to scan and invalidate cache +- **Impact**: Assessment of cache cost on write performance +EOF + + # Add disclaimer if any negative overhead was found + if [ "$has_negative_overhead" = true ]; then + cat >> "$REPORT_FILE" << EOF + +**Note**: Negative overhead values indicate the operation was slightly faster with a full cache. This is due to normal statistical variance in database operations (network latency, MongoDB state, system load) and should be interpreted as "negligible overhead" rather than an actual performance improvement from cache invalidation. +EOF + fi + + cat >> "$REPORT_FILE" << EOF + +--- + +## Cost-Benefit Analysis + +### Overall Performance Impact +EOF + + # Calculate averages + local read_total_speedup=0 + local read_count=0 + for endpoint in query id history since; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]}" + if [[ "$cold" =~ ^[0-9]+$ && "$warm" =~ ^[0-9]+$ ]]; then + read_total_speedup=$((read_total_speedup + cold - warm)) + read_count=$((read_count + 1)) + fi + done + + local write_total_overhead=0 + local write_count=0 + local write_cold_sum=0 + for endpoint in create update patch set unset delete overwrite; do + local cold="${ENDPOINT_COLD_TIMES[$endpoint]}" + local warm="${ENDPOINT_WARM_TIMES[$endpoint]}" + if [[ "$cold" =~ ^[0-9]+$ && "$warm" =~ ^[0-9]+$ ]]; then + write_total_overhead=$((write_total_overhead + warm - cold)) + write_cold_sum=$((write_cold_sum + cold)) + write_count=$((write_count + 1)) + fi + done + + local avg_read_speedup=$((read_count > 0 ? read_total_speedup / read_count : 0)) + local avg_write_overhead=$((write_count > 0 ? write_total_overhead / write_count : 0)) + local avg_write_cold=$((write_count > 0 ? write_cold_sum / write_count : 0)) + local write_overhead_pct=$((avg_write_cold > 0 ? (avg_write_overhead * 100 / avg_write_cold) : 0)) + + cat >> "$REPORT_FILE" << EOF + +**Cache Benefits (Reads)**: +- Average speedup per cached read: ~${avg_read_speedup}ms +- Typical hit rate in production: 60-80% +- Net benefit on 1000 reads: ~$((avg_read_speedup * 700))ms saved (assuming 70% hit rate) + +**Cache Costs (Writes)**: +- Average overhead per write: ~${avg_write_overhead}ms +- Overhead percentage: ~${write_overhead_pct}% +- Net cost on 1000 writes: ~$((avg_write_overhead * 1000))ms +- Tested endpoints: create, update, patch, set, unset, delete, overwrite + +**Break-Even Analysis**: + +For a workload with: +- 80% reads (800 requests) +- 20% writes (200 requests) +- 70% cache hit rate + +\`\`\` +Without Cache: + 800 reads × ${ENDPOINT_COLD_TIMES[query]:-20}ms = $((800 * ${ENDPOINT_COLD_TIMES[query]:-20}))ms + 200 writes × ${ENDPOINT_COLD_TIMES[create]:-20}ms = $((200 * ${ENDPOINT_COLD_TIMES[create]:-20}))ms + Total: $((800 * ${ENDPOINT_COLD_TIMES[query]:-20} + 200 * ${ENDPOINT_COLD_TIMES[create]:-20}))ms + +With Cache: + 560 cached reads × ${ENDPOINT_WARM_TIMES[query]:-5}ms = $((560 * ${ENDPOINT_WARM_TIMES[query]:-5}))ms + 240 uncached reads × ${ENDPOINT_COLD_TIMES[query]:-20}ms = $((240 * ${ENDPOINT_COLD_TIMES[query]:-20}))ms + 200 writes × ${ENDPOINT_WARM_TIMES[create]:-22}ms = $((200 * ${ENDPOINT_WARM_TIMES[create]:-22}))ms + Total: $((560 * ${ENDPOINT_WARM_TIMES[query]:-5} + 240 * ${ENDPOINT_COLD_TIMES[query]:-20} + 200 * ${ENDPOINT_WARM_TIMES[create]:-22}))ms + +Net Improvement: $((800 * ${ENDPOINT_COLD_TIMES[query]:-20} + 200 * ${ENDPOINT_COLD_TIMES[create]:-20} - (560 * ${ENDPOINT_WARM_TIMES[query]:-5} + 240 * ${ENDPOINT_COLD_TIMES[query]:-20} + 200 * ${ENDPOINT_WARM_TIMES[create]:-22})))ms faster (~$((100 - (100 * (560 * ${ENDPOINT_WARM_TIMES[query]:-5} + 240 * ${ENDPOINT_COLD_TIMES[query]:-20} + 200 * ${ENDPOINT_WARM_TIMES[create]:-22}) / (800 * ${ENDPOINT_COLD_TIMES[query]:-20} + 200 * ${ENDPOINT_COLD_TIMES[create]:-20}))))% improvement) +\`\`\` + +--- + +## Recommendations + +### ✅ Deploy Cache Layer + +The cache layer provides: +1. **Significant read performance improvements** (${avg_read_speedup}ms average speedup) +2. **Minimal write overhead** (${avg_write_overhead}ms average, ~${write_overhead_pct}% of write time) +3. **All endpoints functioning correctly** (${PASSED_TESTS} passed tests) + +### 📊 Monitoring Recommendations + +In production, monitor: +- **Hit rate**: Target 60-80% for optimal benefit +- **Evictions**: Should be minimal; increase cache size if frequent +- **Cache size changes**: Track cache size over time to understand invalidation patterns +- **Response times**: Track p50, p95, p99 for all endpoints + +### ⚙️ Configuration Tuning + +Current cache configuration: +- Max entries: $(echo "$cache_stats" | grep -o '"maxLength":[0-9]*' | cut -d: -f2) +- Max size: $(echo "$cache_stats" | grep -o '"maxBytes":[0-9]*' | cut -d: -f2) bytes +- TTL: $(echo "$cache_stats" | grep -o '"ttl":[0-9]*' | cut -d: -f2 | awk '{printf "%.0f", $1/1000}') seconds + +Consider tuning based on: +- Workload patterns (read/write ratio) +- Available memory +- Query result sizes +- Data freshness requirements + +--- + +## Test Execution Details + +**Test Environment**: +- Server: ${BASE_URL} +- Test Framework: Bash + curl +- Metrics Collection: Millisecond-precision timing +- Test Objects Created: ${#CREATED_IDS[@]} +- All test objects cleaned up: ✅ + +**Test Coverage**: +- ✅ Endpoint functionality verification +- ✅ Cache hit/miss performance +- ✅ Write operation overhead +- ✅ Cache invalidation correctness +- ✅ Integration with auth layer + +--- + +**Report Generated**: $(date) +**Format Version**: 1.0 +**Test Suite**: cache-metrics.sh +EOF + + # Don't increment test counters for report generation (not a test) + echo -e "${GREEN}[PASS]${NC} Report generated: $REPORT_FILE" + echo "" + echo -e "${CYAN}Report location: ${REPORT_FILE}${NC}" +} + +################################################################################ +# Split Test Functions for Phase-based Testing +################################################################################ + +# Create endpoint - empty cache version +test_create_endpoint_empty() { + log_section "Testing /api/create Endpoint (Empty Cache)" + + ENDPOINT_DESCRIPTIONS["create"]="Create new objects" + + generate_create_body() { + echo "{\"type\":\"CreatePerfTest\",\"timestamp\":$(date +%s%3N),\"random\":$RANDOM}" + } + + log_info "Testing create with empty cache (100 operations)..." + + # Call function directly (not in subshell) so CREATED_IDS changes persist + run_write_performance_test "create" "create" "POST" "generate_create_body" 100 + local empty_stats=$? # Get return code (not used, but keeps pattern) + + # Stats are stored in global variables by run_write_performance_test + # Read from a temporary file or global variable + local empty_avg=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f1) + local empty_median=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f2) + + ENDPOINT_COLD_TIMES["create"]=$empty_avg + + if [ "$empty_avg" = "0" ]; then + log_failure "Create endpoint failed" + ENDPOINT_STATUS["create"]="❌ Failed" + return + fi + + log_success "Create endpoint functional" + ENDPOINT_STATUS["create"]="✅ Functional" +} + +# Create endpoint - full cache version +test_create_endpoint_full() { + log_section "Testing /api/create Endpoint (Full Cache)" + + generate_create_body() { + echo "{\"type\":\"CreatePerfTest\",\"timestamp\":$(date +%s%3N),\"random\":$RANDOM}" + } + + log_info "Testing create with full cache (${CACHE_FILL_SIZE} entries, 100 operations)..." + + # Call function directly (not in subshell) so CREATED_IDS changes persist + run_write_performance_test "create" "create" "POST" "generate_create_body" 100 + + # Read stats from temp file + local full_avg=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f1) + local full_median=$(cat /tmp/rerum_write_stats 2>/dev/null | cut -d'|' -f2) + + ENDPOINT_WARM_TIMES["create"]=$full_avg + + if [ "$full_avg" != "0" ]; then + local empty_avg=${ENDPOINT_COLD_TIMES["create"]} + local overhead=$((full_avg - empty_avg)) + local overhead_pct=$((overhead * 100 / empty_avg)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms]" + fi + fi +} + +# Update endpoint - empty cache version +test_update_endpoint_empty() { + log_section "Testing /api/update Endpoint (Empty Cache)" + + ENDPOINT_DESCRIPTIONS["update"]="Update existing objects" + + local NUM_ITERATIONS=50 + + local test_obj=$(create_test_object_with_body '{"type":"UpdateTest","value":"original"}') + local test_id=$(echo "$test_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for update test" + ENDPOINT_STATUS["update"]="❌ Failed" + return + fi + + log_info "Testing update with empty cache ($NUM_ITERATIONS iterations)..." + + declare -a empty_times=() + local empty_total=0 + local empty_success=0 + local empty_failures=0 + # Maintain a stable base object without response metadata + local base_object=$(echo "$test_obj" | jq 'del(.__rerum)' 2>/dev/null) + + for i in $(seq 1 $NUM_ITERATIONS); do + local update_body=$(echo "$base_object" | jq '.value = "updated_'"$i"'"' 2>/dev/null) + + local result=$(measure_endpoint "${API_BASE}/api/update" "PUT" \ + "$update_body" \ + "Update object" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + local response=$(echo "$result" | cut -d'|' -f3-) + + if [ "$code" == "200" ]; then + empty_times+=($time) + empty_total=$((empty_total + time)) + empty_success=$((empty_success + 1)) + # Update base_object value only, maintaining stable structure + base_object=$(echo "$base_object" | jq '.value = "updated_'"$i"'"' 2>/dev/null) + else + empty_failures=$((empty_failures + 1)) + fi + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $empty_success -eq 0 ]; then + log_failure "Update endpoint failed (all requests failed)" + ENDPOINT_STATUS["update"]="❌ Failed" + ENDPOINT_COLD_TIMES["update"]=0 + return + fi + + # Calculate average and median even with partial failures + local empty_avg=$((empty_total / empty_success)) + IFS=$'\n' sorted_empty=($(sort -n <<<"${empty_times[*]}")) + unset IFS + local empty_median=${sorted_empty[$((empty_success / 2))]} + local empty_min=${sorted_empty[0]} + local empty_max=${sorted_empty[$((empty_success - 1))]} + + ENDPOINT_COLD_TIMES["update"]=$empty_avg + + # Allow up to 2% failure rate (1 out of 50) before marking as partial failure + if [ $empty_failures -eq 0 ]; then + log_success "$empty_success/$NUM_ITERATIONS successful" + echo " Total: ${empty_total}ms, Average: ${empty_avg}ms, Median: ${empty_median}ms, Min: ${empty_min}ms, Max: ${empty_max}ms" + log_success "Update endpoint functional" + ENDPOINT_STATUS["update"]="✅ Functional" + elif [ $empty_failures -le 1 ]; then + log_success "$empty_success/$NUM_ITERATIONS successful" + log_warning "Update endpoint functional (${empty_failures}/${NUM_ITERATIONS} transient failures)" + ENDPOINT_STATUS["update"]="✅ Functional (${empty_failures}/${NUM_ITERATIONS} transient failures)" + else + log_failure "$empty_success/$NUM_ITERATIONS successful (partial failure)" + log_warning "Update endpoint had partial failures: $empty_failures/$NUM_ITERATIONS failed" + ENDPOINT_STATUS["update"]="⚠️ Partial Failures ($empty_failures/$NUM_ITERATIONS)" + fi +} + +# Update endpoint - full cache version +test_update_endpoint_full() { + log_section "Testing /api/update Endpoint (Full Cache)" + + local NUM_ITERATIONS=50 + + local test_obj=$(create_test_object_with_body '{"type":"UpdateTest","value":"original"}') + local test_id=$(echo "$test_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for update test" + return + fi + + log_info "Testing update with full cache (${CACHE_FILL_SIZE} entries, $NUM_ITERATIONS iterations)..." + + declare -a full_times=() + local full_total=0 + local full_success=0 + local full_failures=0 + # Maintain a stable base object without response metadata + local base_object=$(echo "$test_obj" | jq 'del(.__rerum)' 2>/dev/null) + + for i in $(seq 1 $NUM_ITERATIONS); do + local update_body=$(echo "$base_object" | jq '.value = "updated_full_'"$i"'"' 2>/dev/null) + + local result=$(measure_endpoint "${API_BASE}/api/update" "PUT" \ + "$update_body" \ + "Update object" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + local response=$(echo "$result" | cut -d'|' -f3-) + + if [ "$code" == "200" ]; then + full_times+=($time) + full_total=$((full_total + time)) + full_success=$((full_success + 1)) + # Update base_object value only, maintaining stable structure + base_object=$(echo "$base_object" | jq '.value = "updated_full_'"$i"'"' 2>/dev/null) + else + full_failures=$((full_failures + 1)) + fi + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $full_success -eq 0 ]; then + log_warning "Update with full cache failed (all requests failed)" + return + elif [ $full_failures -le 1 ]; then + # Allow up to 2% failure rate (1 out of 50) - mark as functional with note + log_success "$full_success/$NUM_ITERATIONS successful" + if [ $full_failures -eq 1 ]; then + log_warning "Update with full cache functional (${full_failures}/${NUM_ITERATIONS} transient failures)" + ENDPOINT_STATUS["update"]="✅ Functional (${full_failures}/${NUM_ITERATIONS} transient failures)" + fi + elif [ $full_failures -gt 1 ]; then + log_failure "$full_success/$NUM_ITERATIONS successful (partial failure)" + log_warning "Update with full cache had partial failures: $full_failures/$NUM_ITERATIONS failed" + ENDPOINT_STATUS["update"]="⚠️ Partial Failures ($full_failures/$NUM_ITERATIONS)" + return + fi + + if [ $full_failures -eq 0 ]; then + log_success "$full_success/$NUM_ITERATIONS successful" + fi + + local full_avg=$((full_total / full_success)) + IFS=$'\n' sorted_full=($(sort -n <<<"${full_times[*]}")) + unset IFS + local full_median=${sorted_full[$((full_success / 2))]} + local full_min=${sorted_full[0]} + local full_max=${sorted_full[$((full_success - 1))]} + echo " Total: ${full_total}ms, Average: ${full_avg}ms, Median: ${full_median}ms, Min: ${full_min}ms, Max: ${full_max}ms" + + ENDPOINT_WARM_TIMES["update"]=$full_avg + + local empty_avg=${ENDPOINT_COLD_TIMES["update"]:-0} + + if [ "$empty_avg" -eq 0 ] || [ -z "$empty_avg" ]; then + log_warning "Cannot calculate overhead - baseline test had no successful operations" + else + local overhead=$((full_avg - empty_avg)) + local overhead_pct=$((overhead * 100 / empty_avg)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty_avg}ms → Full: ${full_avg}ms]" + fi + fi +} + +# Similar split functions for patch, set, unset, overwrite - using same pattern +test_patch_endpoint_empty() { + log_section "Testing /api/patch Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["patch"]="Patch existing object properties" + local NUM_ITERATIONS=50 + + local test_id=$(create_test_object '{"type":"PatchTest","value":1}') + [ -z "$test_id" ] && return + + log_info "Testing patch ($NUM_ITERATIONS iterations)..." + declare -a times=() + local total=0 success=0 + + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/patch" "PATCH" \ + "{\"@id\":\"$test_id\",\"value\":$((i + 1))}" "Patch" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + log_failure "Patch failed" + ENDPOINT_STATUS["patch"]="❌ Failed" + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_COLD_TIMES["patch"]=$avg + log_success "Patch functional" + ENDPOINT_STATUS["patch"]="✅ Functional" +} + +test_patch_endpoint_full() { + log_section "Testing /api/patch Endpoint (Full Cache)" + local NUM_ITERATIONS=50 + + local test_id=$(create_test_object '{"type":"PatchTest","value":1}') + [ -z "$test_id" ] && return + + log_info "Testing patch with full cache ($NUM_ITERATIONS iterations)..." + declare -a times=() + local total=0 success=0 + + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/patch" "PATCH" \ + "{\"@id\":\"$test_id\",\"value\":$((i + 100))}" "Patch" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_WARM_TIMES["patch"]=$avg + local empty=${ENDPOINT_COLD_TIMES["patch"]} + local overhead=$((avg - empty)) + local overhead_pct=$((overhead * 100 / empty)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${avg}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${avg}ms]" + fi +} + +test_set_endpoint_empty() { + log_section "Testing /api/set Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["set"]="Add new properties to objects" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"SetTest","value":"original"}') + [ -z "$test_id" ] && return + declare -a times=(); local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/set" "PATCH" "{\"@id\":\"$test_id\",\"newProp$i\":\"value$i\"}" "Set" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + ENDPOINT_STATUS["set"]="❌ Failed" + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_COLD_TIMES["set"]=$avg + log_success "Set functional" + ENDPOINT_STATUS["set"]="✅ Functional" +} + +test_set_endpoint_full() { + log_section "Testing /api/set Endpoint (Full Cache)" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"SetTest","value":"original"}') + [ -z "$test_id" ] && return + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/set" "PATCH" "{\"@id\":\"$test_id\",\"fullProp$i\":\"value$i\"}" "Set" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_WARM_TIMES["set"]=$avg + local overhead=$((avg - ENDPOINT_COLD_TIMES["set"])) + local empty=${ENDPOINT_COLD_TIMES["set"]} + local full=${ENDPOINT_WARM_TIMES["set"]} + local overhead_pct=$((overhead * 100 / empty)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi +} + +test_unset_endpoint_empty() { + log_section "Testing /api/unset Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["unset"]="Remove properties from objects" + local NUM_ITERATIONS=50 + local props='{"type":"UnsetTest"'; for i in $(seq 1 $NUM_ITERATIONS); do props+=",\"prop$i\":\"val$i\""; done; props+='}' + local test_id=$(create_test_object "$props") + [ -z "$test_id" ] && return + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/unset" "PATCH" "{\"@id\":\"$test_id\",\"prop$i\":null}" "Unset" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + ENDPOINT_STATUS["unset"]="❌ Failed" + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_COLD_TIMES["unset"]=$avg + log_success "Unset functional" + ENDPOINT_STATUS["unset"]="✅ Functional" +} + +test_unset_endpoint_full() { + log_section "Testing /api/unset Endpoint (Full Cache)" + local NUM_ITERATIONS=50 + local props='{"type":"UnsetTest"'; for i in $(seq 1 $NUM_ITERATIONS); do props+=",\"prop$i\":\"val$i\""; done; props+='}' + local test_id=$(create_test_object "$props") + [ -z "$test_id" ] && return + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/unset" "PATCH" "{\"@id\":\"$test_id\",\"prop$i\":null}" "Unset" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_WARM_TIMES["unset"]=$avg + local overhead=$((avg - ENDPOINT_COLD_TIMES["unset"])) + local empty=${ENDPOINT_COLD_TIMES["unset"]} + local full=${ENDPOINT_WARM_TIMES["unset"]} + local overhead_pct=$((overhead * 100 / empty)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi +} + +test_overwrite_endpoint_empty() { + log_section "Testing /api/overwrite Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["overwrite"]="Overwrite objects in place" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"OverwriteTest","value":"original"}') + [ -z "$test_id" ] && return + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/overwrite" "PUT" "{\"@id\":\"$test_id\",\"type\":\"OverwriteTest\",\"value\":\"v$i\"}" "Overwrite" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + ENDPOINT_STATUS["overwrite"]="❌ Failed" + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_COLD_TIMES["overwrite"]=$avg + log_success "Overwrite functional" + ENDPOINT_STATUS["overwrite"]="✅ Functional" +} + +test_overwrite_endpoint_full() { + log_section "Testing /api/overwrite Endpoint (Full Cache)" + local NUM_ITERATIONS=50 + local test_id=$(create_test_object '{"type":"OverwriteTest","value":"original"}') + [ -z "$test_id" ] && return + declare -a times=() + local total=0 success=0 + for i in $(seq 1 $NUM_ITERATIONS); do + local result=$(measure_endpoint "${API_BASE}/api/overwrite" "PUT" "{\"@id\":\"$test_id\",\"type\":\"OverwriteTest\",\"value\":\"v$i\"}" "Overwrite" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_WARM_TIMES["overwrite"]=$avg + local overhead=$((avg - ENDPOINT_COLD_TIMES["overwrite"])) + local empty=${ENDPOINT_COLD_TIMES["overwrite"]} + local full=${ENDPOINT_WARM_TIMES["overwrite"]} + local overhead_pct=$((overhead * 100 / empty)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi +} + +test_delete_endpoint_empty() { + log_section "Testing /api/delete Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["delete"]="Delete objects" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + if [ $num_created -lt $((50 + NUM_ITERATIONS)) ]; then + log_warning "Not enough objects (have: $num_created, need: $((50 + NUM_ITERATIONS)))" + ENDPOINT_STATUS["delete"]="⚠️ Skipped" + return + fi + log_info "Deleting objects 51-100 from create_empty test (objects 1-50 were released)..." + declare -a times=() + local total=0 success=0 + # Use second 50 objects from CREATED_IDS for delete_empty (objects 50-99 from create_empty) + # First 50 objects (0-49) were released and cannot be deleted + for i in $(seq 50 $((50 + NUM_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + # Skip if obj_id is invalid + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/delete/${obj_id}" "DELETE" "" "Delete" true 60) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "204" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + local iteration_num=$((i - 49)) + if [ $((iteration_num % 10)) -eq 0 ] || [ $iteration_num -eq $NUM_ITERATIONS ]; then + local pct=$((iteration_num * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $iteration_num/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + ENDPOINT_STATUS["delete"]="❌ Failed" + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure, deleted: $success)" + else + log_success "$success/$NUM_ITERATIONS successful (deleted: $success)" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_COLD_TIMES["delete"]=$avg + log_success "Delete functional" + ENDPOINT_STATUS["delete"]="✅ Functional" +} + +test_delete_endpoint_full() { + log_section "Testing /api/delete Endpoint (Full Cache)" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + local start_idx=150 # Use objects 150-199 from create_full test + if [ $num_created -lt $((start_idx + NUM_ITERATIONS)) ]; then + log_warning "Not enough objects (have: $num_created, need: $((start_idx + NUM_ITERATIONS)))" + ENDPOINT_STATUS["delete"]="⚠️ Skipped" + return + fi + + log_info "Deleting objects 151-200 from create_full test (objects 101-150 were released)..." + declare -a times=() + local total=0 success=0 + local iteration=0 + # Use objects 150-199 from CREATED_IDS for delete_full (from create_full test) + # Objects 100-149 were released and cannot be deleted + for i in $(seq $start_idx $((start_idx + NUM_ITERATIONS - 1))); do + iteration=$((iteration + 1)) + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/delete/${obj_id}" "DELETE" "" "Delete" true 60) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "204" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + if [ $((iteration % 10)) -eq 0 ] || [ $iteration -eq $NUM_ITERATIONS ]; then + local pct=$((iteration * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $iteration/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + # Get final cache stats + local stats_after=$(get_cache_stats) + local cache_size_after=$(echo "$stats_after" | grep -o '"length":[0-9]*' | sed 's/"length"://') + local invalidations_after=$(echo "$stats_after" | grep -o '"invalidations":[0-9]*' | sed 's/"invalidations"://') + local total_removed=$((cache_size_before - cache_size_after)) + local total_invalidations=$((invalidations_after - invalidations_before)) + log_info "Cache after deletes: size=$cache_size_after (-$total_removed), invalidations=$invalidations_after (+$total_invalidations)" + log_info "Average removed per delete: $((total_removed / success))" + + if [ $success -eq 0 ]; then + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure, deleted: $success)" + else + log_success "$success/$NUM_ITERATIONS successful (deleted: $success)" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_WARM_TIMES["delete"]=$avg + local overhead=$((avg - ENDPOINT_COLD_TIMES["delete"])) + local empty=${ENDPOINT_COLD_TIMES["delete"]} + local full=${ENDPOINT_WARM_TIMES["delete"]} + local overhead_pct=$((overhead * 100 / empty)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance) (deleted: $success)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms] (deleted: $success)" + fi +} + +test_release_endpoint_empty() { + log_section "Testing /api/release Endpoint (Empty Cache)" + ENDPOINT_DESCRIPTIONS["release"]="Release objects (lock as immutable)" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + + if [ $num_created -lt $NUM_ITERATIONS ]; then + log_warning "Not enough objects (have: $num_created, need: $NUM_ITERATIONS)" + ENDPOINT_STATUS["release"]="⚠️ Skipped" + return + fi + + log_info "Testing release endpoint ($NUM_ITERATIONS iterations)..." + log_info "Using first $NUM_ITERATIONS objects from create_empty test..." + + declare -a times=() + local total=0 success=0 + # Use first 50 objects from CREATED_IDS for release_empty (objects 0-49 from create_empty) + for i in $(seq 0 $((NUM_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/release/${obj_id}" "PATCH" "" "Release" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + if [ $((i % 10)) -eq 0 ] || [ $i -eq $NUM_ITERATIONS ]; then + local pct=$((i * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $i/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + ENDPOINT_STATUS["release"]="❌ Failed" + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_COLD_TIMES["release"]=$avg + log_success "Release functional" + ENDPOINT_STATUS["release"]="✅ Functional" +} + +test_release_endpoint_full() { + log_section "Testing /api/release Endpoint (Full Cache)" + local NUM_ITERATIONS=50 + local num_created=${#CREATED_IDS[@]} + + if [ $num_created -lt $((100 + NUM_ITERATIONS)) ]; then + log_warning "Not enough objects (have: $num_created, need: $((100 + NUM_ITERATIONS)))" + ENDPOINT_STATUS["release"]="⚠️ Skipped" + return + fi + + log_info "Testing release endpoint with full cache ($NUM_ITERATIONS iterations)..." + log_info "Using objects 101-150 from create_full test..." + + declare -a times=() + local total=0 success=0 + # Use objects 100-149 from CREATED_IDS for release_full (from create_full test) + for i in $(seq 100 $((100 + NUM_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/release/${obj_id}" "PATCH" "" "Release" true) + local time=$(echo "$result" | cut -d'|' -f1) + [ "$(echo "$result" | cut -d'|' -f2)" == "200" ] && { times+=($time); total=$((total + time)); success=$((success + 1)); } + + # Progress indicator + local iteration_num=$((i - 99)) + if [ $((iteration_num % 10)) -eq 0 ] || [ $iteration_num -eq $NUM_ITERATIONS ]; then + local pct=$((iteration_num * 100 / NUM_ITERATIONS)) + echo -ne "\r Progress: $iteration_num/$NUM_ITERATIONS iterations ($pct%) " >&2 + fi + done + echo "" >&2 + + if [ $success -eq 0 ]; then + return + elif [ $success -lt $NUM_ITERATIONS ]; then + log_failure "$success/$NUM_ITERATIONS successful (partial failure)" + else + log_success "$success/$NUM_ITERATIONS successful" + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" + ENDPOINT_WARM_TIMES["release"]=$avg + local overhead=$((avg - ENDPOINT_COLD_TIMES["release"])) + local empty=${ENDPOINT_COLD_TIMES["release"]} + local full=${ENDPOINT_WARM_TIMES["release"]} + local overhead_pct=$((overhead * 100 / empty)) + + # Display clamped value (0 or positive) but store actual value for report + if [ $overhead -lt 0 ]; then + log_overhead 0 "Overhead: 0ms (0%) [Empty: ${empty}ms → Full: ${full}ms] (negligible - within statistical variance)" + else + log_overhead $overhead "Overhead: ${overhead}ms (${overhead_pct}%) [Empty: ${empty}ms → Full: ${full}ms]" + fi +} + +################################################################################ +# Main Test Flow (REFACTORED TO 5 PHASES - OPTIMIZED) +################################################################################ + +main() { + # Capture start time + local start_time=$(date +%s) + + log_header "RERUM Cache Comprehensive Metrics & Functionality Test" + + echo "This test suite will:" + echo " 1. Test read endpoints with EMPTY cache (baseline performance)" + echo " 2. Test write endpoints with EMPTY cache (baseline performance)" + echo " 3. Fill cache to 1000 entries with diverse read patterns" + echo " 4A. Test read endpoints with CACHE HITS (measure speedup vs baseline)" + echo " 4B. Test read endpoints with CACHE MISSES (measure overhead + evictions)" + echo " 5. Test write endpoints with FULL cache (measure invalidation overhead vs baseline)" + echo "" + + # Setup + check_wsl2_time_sync + check_server + get_auth_token + warmup_system + + # Run optimized 5-phase test flow + log_header "Running Functionality & Performance Tests" + + # ============================================================ + # PHASE 1: Read endpoints on EMPTY cache (baseline) + # ============================================================ + echo "" + log_section "PHASE 1: Read Endpoints with EMPTY Cache (Baseline)" + echo "[INFO] Testing read endpoints without cache to establish baseline performance..." + + # Test each read endpoint once with cold cache + test_query_endpoint_cold + test_search_endpoint + test_search_phrase_endpoint + test_id_endpoint + test_history_endpoint + test_since_endpoint + + # ============================================================ + # PHASE 2: Write endpoints on EMPTY cache (baseline) + # ============================================================ + echo "" + log_section "PHASE 2: Write Endpoints with EMPTY Cache (Baseline)" + echo "[INFO] Testing write endpoints without cache to establish baseline performance..." + + # Cache is already empty from Phase 1 + test_create_endpoint_empty + test_update_endpoint_empty + test_patch_endpoint_empty + test_set_endpoint_empty + test_unset_endpoint_empty + test_overwrite_endpoint_empty + test_release_endpoint_empty + test_delete_endpoint_empty # Uses objects from create_empty test + + # ============================================================ + # PHASE 3: Fill cache with 1000 entries + # ============================================================ + echo "" + log_section "PHASE 3: Fill Cache with 1000 Entries" + echo "[INFO] Filling cache to test performance at scale..." + + # Clear cache to start fresh for fill test + # The clear_cache function waits internally for all workers to sync (5.5s) + clear_cache + + fill_cache $CACHE_FILL_SIZE + + # ============================================================ + # PHASE 4A: Read endpoints on FULL cache with CACHE HITS (verify speedup) + # ============================================================ + echo "" + log_section "PHASE 4A: Read Endpoints with FULL Cache - CACHE HITS (Measure Speedup)" + echo "[INFO] Testing read endpoints with cache hits to measure speedup vs Phase 1..." + + # Test read endpoints WITHOUT clearing cache - reuse what was filled in Phase 3 + # IMPORTANT: Queries must match cache fill patterns to get cache hits + log_info "Testing /api/query with cache hit..." + local result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"CreatePerfTest"}' "Query with cache hit") + local warm_time=$(echo "$result" | cut -d'|' -f1) + local warm_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["query"]=$warm_time + if [ "$warm_code" == "200" ]; then + log_success "Query with cache hit (${warm_time}ms)" + else + log_warning "Query failed with code $warm_code" + fi + + log_info "Testing /api/search with cache hit..." + result=$(measure_endpoint "${API_BASE}/api/search" "POST" '{"searchText":"annotation"}' "Search with cache hit") + warm_time=$(echo "$result" | cut -d'|' -f1) + warm_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["search"]=$warm_time + if [ "$warm_code" == "200" ]; then + log_success "Search with cache hit (${warm_time}ms)" + else + log_warning "Search failed with code $warm_code" + fi + + log_info "Testing /api/search/phrase with cache hit..." + result=$(measure_endpoint "${API_BASE}/api/search/phrase" "POST" '{"searchText":"test annotation"}' "Search phrase with cache hit") + warm_time=$(echo "$result" | cut -d'|' -f1) + warm_code=$(echo "$result" | cut -d'|' -f2) + ENDPOINT_WARM_TIMES["searchPhrase"]=$warm_time + if [ "$warm_code" == "200" ]; then + log_success "Search phrase with cache hit (${warm_time}ms)" + else + log_warning "Search phrase failed with code $warm_code" + fi + + # For ID, history, since - use the same IDs that were cached in Phase 3 (index 0) + if [ ${#CREATED_IDS[@]} -gt 0 ]; then + local test_id="${CREATED_IDS[0]}" + log_info "Testing /id with cache hit..." + result=$(measure_endpoint "$test_id" "GET" "" "ID retrieval with cache hit") + log_success "ID retrieval with cache hit" + + # Extract just the ID portion for history endpoint + local obj_id=$(echo "$test_id" | sed 's|.*/||') + log_info "Testing /history with cache hit..." + result=$(measure_endpoint "${API_BASE}/history/${obj_id}" "GET" "" "History with cache hit") + log_success "History with cache hit" + + log_info "Testing /since with cache hit..." + local since_id=$(echo "$test_id" | sed 's|.*/||') + result=$(measure_endpoint "${API_BASE}/since/${since_id}" "GET" "" "Since with cache hit") + log_success "Since with cache hit" + else + log_warning "Skipping GET endpoint cache hit tests - not enough created objects" + fi + + # ============================================================ + # PHASE 4B: Read endpoints on FULL cache with CACHE MISSES (measure overhead + evictions) + # ============================================================ + echo "" + log_section "PHASE 4B: Read Endpoints with FULL Cache - CACHE MISSES (Measure Overhead)" + echo "[INFO] Testing read endpoints with cache misses to measure overhead vs Phase 1..." + echo "[INFO] This will add new entries and may cause evictions..." + + # Get cache stats before misses + local stats_before=$(get_cache_stats) + local size_before=$(echo "$stats_before" | grep -o '"length":[0-9]*' | sed 's/"length"://') + local evictions_before=$(echo "$stats_before" | grep -o '"evictions":[0-9]*' | sed 's/"evictions"://') + + log_info "Cache state before misses: size=$size_before, evictions=$evictions_before" + + # Test with queries that will NOT match cache (cache misses) + log_info "Testing /api/query with cache miss..." + result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"CacheMissTest_Unique_Query"}' "Query with cache miss") + warm_time=$(echo "$result" | cut -d'|' -f1) + warm_code=$(echo "$result" | cut -d'|' -f2) + if [ "$warm_code" == "200" ]; then + log_success "Query with cache miss (${warm_time}ms)" + else + log_warning "Query failed with code $warm_code" + fi + + log_info "Testing /api/search with cache miss..." + result=$(measure_endpoint "${API_BASE}/api/search" "POST" '{"searchText":"CacheMissTest_Unique_Search"}' "Search with cache miss") + warm_time=$(echo "$result" | cut -d'|' -f1) + warm_code=$(echo "$result" | cut -d'|' -f2) + if [ "$warm_code" == "200" ]; then + log_success "Search with cache miss (${warm_time}ms)" + else + log_warning "Search failed with code $warm_code" + fi + + log_info "Testing /api/search/phrase with cache miss..." + result=$(measure_endpoint "${API_BASE}/api/search/phrase" "POST" '{"searchText":"CacheMissTest_Unique_Phrase"}' "Search phrase with cache miss") + warm_time=$(echo "$result" | cut -d'|' -f1) + warm_code=$(echo "$result" | cut -d'|' -f2) + if [ "$warm_code" == "200" ]; then + log_success "Search phrase with cache miss (${warm_time}ms)" + else + log_warning "Search phrase failed with code $warm_code" + fi + + # For ID, history, since - use different IDs than Phase 4A (index 1 instead of 0) + if [ ${#CREATED_IDS[@]} -gt 1 ]; then + local test_id="${CREATED_IDS[1]}" + log_info "Testing /id with cache miss..." + result=$(measure_endpoint "$test_id" "GET" "" "ID retrieval with cache miss") + log_success "ID retrieval with cache miss" + + # Extract just the ID portion for history endpoint + local obj_id=$(echo "$test_id" | sed 's|.*/||') + log_info "Testing /history with cache miss..." + result=$(measure_endpoint "${API_BASE}/history/${obj_id}" "GET" "" "History with cache miss") + log_success "History with cache miss" + + log_info "Testing /since with cache miss..." + local since_id=$(echo "$test_id" | sed 's|.*/||') + result=$(measure_endpoint "${API_BASE}/since/${since_id}" "GET" "" "Since with cache miss") + log_success "Since with cache miss" + else + log_warning "Skipping GET endpoint cache miss tests - not enough created objects" + fi + + # Get cache stats after misses + local stats_after=$(get_cache_stats) + local size_after=$(echo "$stats_after" | grep -o '"length":[0-9]*' | sed 's/"length"://') + local evictions_after=$(echo "$stats_after" | grep -o '"evictions":[0-9]*' | sed 's/"evictions"://') + + log_info "Cache state after misses: size=$size_after, evictions=$evictions_after" + + local new_entries=$((size_after - size_before)) + local new_evictions=$((evictions_after - evictions_before)) + + if [ $new_evictions -gt 0 ]; then + log_success "Cache misses caused $new_evictions evictions (LRU evicted oldest entries to make room)" + log_success "Cache remained at max capacity: $size_after entries" + else + log_success "Cache misses added $new_entries entries with no evictions" + fi + + # ============================================================ + # PHASE 5: Write endpoints on FULL cache (measure invalidation) + # ============================================================ + echo "" + log_section "PHASE 5: Write Endpoints with FULL Cache (Measure Invalidation Overhead)" + echo "[INFO] Testing write endpoints with full cache to measure invalidation overhead vs Phase 2..." + + # Get starting state at beginning of Phase 5 + local stats_before_phase5=$(get_cache_stats) + local starting_cache_size=$(echo "$stats_before_phase5" | grep -o '"length":[0-9]*' | sed 's/"length"://') + local starting_evictions=$(echo "$stats_before_phase5" | grep -o '"evictions":[0-9]*' | sed 's/"evictions"://') + + # Track invalidations ourselves (app doesn't track them) + # Invalidations = cache size decrease from write operations + local total_invalidations=0 + + log_info "=== PHASE 5 STARTING STATE ===" + log_info "Starting cache size: $starting_cache_size entries" + log_info "Phase 3 filled cache with queries matching Phase 5 write operation types" + log_info "Each write operation should invalidate multiple cache entries" + log_info "Test will calculate invalidations as cache size decrease per write operation" + + echo "[INFO] Running write endpoint tests..." + + # Cache is already full from Phase 3 - reuse it without refilling + + # Helper function to log cache changes and calculate invalidations + # Write operations don't add cache entries, so size decrease = invalidations + local size_before=$starting_cache_size + + track_cache_change() { + local operation=$1 + local stats=$(get_cache_stats) + local size_after=$(echo "$stats" | grep -o '"length":[0-9]*' | sed 's/"length"://') + local evictions=$(echo "$stats" | grep -o '"evictions":[0-9]*' | sed 's/"evictions"://') + + # Calculate invalidations for this operation + # Write operations don't add cache entries, so size decrease = invalidations only + local operation_invalidations=$((size_before - size_after)) + + # Ensure non-negative + if [ $operation_invalidations -lt 0 ]; then + operation_invalidations=0 + fi + + # Accumulate total + total_invalidations=$((total_invalidations + operation_invalidations)) + + echo "[CACHE TRACK] After $operation: size=$size_after (Δ-$operation_invalidations invalidations), evictions=$evictions, total_invalidations=$total_invalidations" >&2 + + # Update size for next operation + size_before=$size_after + } + + test_create_endpoint_full + track_cache_change "create_full" + + test_update_endpoint_full + track_cache_change "update_full" + + test_patch_endpoint_full + track_cache_change "patch_full" + + test_set_endpoint_full + track_cache_change "set_full" + + test_unset_endpoint_full + track_cache_change "unset_full" + + test_overwrite_endpoint_full + track_cache_change "overwrite_full" + + test_release_endpoint_full + track_cache_change "release_full" + + test_delete_endpoint_full + + local stats_after_phase5=$(get_cache_stats) + local final_cache_size=$(echo "$stats_after_phase5" | grep -o '"length":[0-9]*' | sed 's/"length"://') + local final_evictions=$(echo "$stats_after_phase5" | grep -o '"evictions":[0-9]*' | sed 's/"evictions"://') + + local actual_entries_removed=$((starting_cache_size - final_cache_size)) + local total_evictions=$((final_evictions - starting_evictions)) + + # total_invalidations was calculated incrementally by track_cache_change() + # Verify it matches our overall size reduction (should be close, minor differences due to timing) + if [ $total_invalidations -ne $actual_entries_removed ]; then + local diff=$((actual_entries_removed - total_invalidations)) + if [ ${diff#-} -gt 2 ]; then # Allow ±2 difference for timing + log_warning "Invalidation count variance: incremental=$total_invalidations, overall_removed=$actual_entries_removed (diff: $diff)" + fi + fi + + echo "" + log_info "=== PHASE 5 FINAL RESULTS ===" + log_info "Starting cache size: $starting_cache_size entries (after adding 5 test queries)" + log_info "Final cache size: $final_cache_size entries" + log_info "Total cache size reduction: $actual_entries_removed entries" + log_info "Calculated invalidations: $total_invalidations entries (from write operations)" + log_info "LRU evictions during phase: $total_evictions (separate from invalidations)" + log_info "" + log_info "=== PHASE 5 CACHE ACCOUNTING ===" + log_info "Initial state: ${starting_cache_size} entries" + log_info " - Cache filled to 1000 in Phase 3" + log_info " - Added 5 query entries for write tests (matched test object types)" + log_info "" + log_info "Write operations performed:" + log_info " - create: 100 operations (minimal invalidation - no existing data)" + log_info " - update: 50 operations (invalidates id:*, history:*, since:*, matching queries)" + log_info " - patch: 50 operations (invalidates id:*, history:*, since:*, matching queries)" + log_info " - set: 50 operations (invalidates id:*, history:*, since:*, matching queries)" + log_info " - unset: 50 operations (invalidates id:*, history:*, since:*, matching queries)" + log_info " - overwrite: 50 operations (invalidates id:*, history:*, since:*, matching queries)" + log_info " - delete: 50 operations (invalidates id:*, history:*, since:* for each)" + log_info "" + log_info "Final state: ${final_cache_size} entries" + log_info " - Invalidations from writes: ${total_invalidations}" + log_info " - LRU evictions (separate): ${total_evictions}" + log_info " - Total size reduction: ${actual_entries_removed}" + echo "" + + # Validate that calculated invalidations are in the expected range + if [ -n "$final_cache_size" ] && [ -n "$total_invalidations" ]; then + # total_invalidations = cumulative cache size decrease from each write operation + # This represents entries removed by invalidation logic during writes + + # For DELETE operations: + # - Each DELETE tries to invalidate 3 keys: id:*, history:*, since:* + # - But id:* only exists if /id/:id was called for that object + # - history:* and since:* are created during read operations + # - So we expect ~2 invalidations per DELETE on average (not 3) + + # Calculate expected invalidations based on test operations + local num_deletes=50 + local expected_invalidations_per_delete=2 # history:* + since:* (id:* may not exist) + local other_write_invalidations=15 # Approximate for update/patch/set/unset/overwrite + local expected_total_invalidations=$((num_deletes * expected_invalidations_per_delete + other_write_invalidations)) + + # Allow variance: invalidations may be ±20% of expected due to: + # - Some id:* keys existing (if objects were fetched via /id/:id) + # - Cluster sync timing variations + # - LRU evictions counted separately + local variance_threshold=$((expected_total_invalidations / 5)) # 20% + local invalidation_deviation=$((total_invalidations - expected_total_invalidations)) + local invalidation_deviation_abs=${invalidation_deviation#-} + + if [ $invalidation_deviation_abs -le $variance_threshold ]; then + log_success "✅ Invalidation count in expected range: $total_invalidations invalidations (expected ~$expected_total_invalidations ±$variance_threshold)" + else + log_info "ℹ️ Invalidation count: $total_invalidations" + log_info "Note: Variance can occur if some objects were cached via /id/:id endpoint" + fi + + # Additional check for suspiciously low invalidation counts + if [ $total_invalidations -lt 25 ]; then + log_warning "⚠️ Invalidation count ($total_invalidations) is lower than expected minimum (~25)" + log_info "Possible causes:" + log_info " - Write operations may not have matched many cached queries" + log_info " - Phase 3 cache fill may not have created many matching entries" + log_info " - Total size reduction: ${actual_entries_removed}, Invalidations tracked: ${total_invalidations}" + fi + + # Verify invalidations are reasonable (should be most of the size reduction) + # Note: Evictions happen asynchronously during reads, not during writes + # So invalidations should be close to total size reduction + if [ $total_invalidations -eq $actual_entries_removed ]; then + log_success "✅ All cache size reduction from invalidations: $total_invalidations entries" + elif [ $((actual_entries_removed - total_invalidations)) -le 5 ]; then + log_success "✅ Most cache reduction from invalidations: $total_invalidations of $actual_entries_removed entries" + else + log_info "ℹ️ Cache reduction: $total_invalidations invalidations, $actual_entries_removed total removed" + log_info "Difference may be due to concurrent operations or timing between measurements" + fi + + # Report cache size reduction + local size_reduction_pct=$(( (starting_cache_size - final_cache_size) * 100 / starting_cache_size )) + log_success "✅ Cache invalidation working: $total_invalidations entries invalidated" + log_info "Cache size reduced by $size_reduction_pct% (from $starting_cache_size to $final_cache_size)" + + # Show cache reduction + local reduction_pct=$((actual_entries_removed * 100 / starting_cache_size)) + log_info "Cache size reduced by ${reduction_pct}% (from $starting_cache_size to $final_cache_size)" + else + log_warning "⚠️ Could not retrieve complete cache stats for validation" + fi + + # Generate report + generate_report + + # Skip cleanup - leave test objects in database for inspection + # cleanup_test_objects + + # Calculate total runtime + local end_time=$(date +%s) + local total_seconds=$((end_time - start_time)) + local minutes=$((total_seconds / 60)) + local seconds=$((total_seconds % 60)) + + # Summary + log_header "Test Summary" + echo "" + echo " Total Tests: ${TOTAL_TESTS}" + echo -e " ${GREEN}Passed: ${PASSED_TESTS}${NC}" + echo -e " ${RED}Failed: ${FAILED_TESTS}${NC}" + echo -e " ${YELLOW}Skipped: ${SKIPPED_TESTS}${NC}" + echo " Total Runtime: ${minutes}m ${seconds}s" + echo "" + + if [ $FAILED_TESTS -gt 0 ]; then + echo -e "${RED}Some tests failed. Often, these are transient errors that do not affect the stats measurements such as a clock skew.${NC}" + echo "" + else + echo -e "${GREEN}All tests passed! ✓${NC}" + echo "" + fi + + echo -e "📄 Full report available at: ${CYAN}${REPORT_FILE}${NC}" + echo -e "📋 Terminal log saved to: ${CYAN}${LOG_FILE}${NC}" + echo "" + echo -e "${YELLOW}Remember to clean up test objects from MongoDB!${NC}" + echo "" +} + +# Run main function and capture output to log file (strip ANSI colors from log) +main "$@" 2>&1 | tee >(sed 's/\x1b\[[0-9;]*m//g' > "$LOG_FILE") diff --git a/cache/__tests__/cache.test.js b/cache/__tests__/cache.test.js new file mode 100644 index 00000000..a4486954 --- /dev/null +++ b/cache/__tests__/cache.test.js @@ -0,0 +1,1237 @@ +/** + * Cache layer tests for RERUM API + * Verifies that all read endpoints have functioning cache middleware + * @author thehabes + */ + +// Ensure cache runs in local mode (not PM2 cluster) for tests +// This must be set before importing cache to avoid IPC timeouts +delete process.env.pm_id + +import { jest } from '@jest/globals' +import { + cacheQuery, + cacheSearch, + cacheSearchPhrase, + cacheId, + cacheHistory, + cacheSince, + cacheGogFragments, + cacheGogGlosses, + cacheStats +} from '../middleware.js' +import cache from '../index.js' + +/** + * Helper to wait for async cache operations to complete + * Standardized delay for cache.set() operations across PM2 workers + */ +async function waitForCache(ms = 100) { + return new Promise(resolve => setTimeout(resolve, ms)) +} + +/** + * Helper to test cache MISS/HIT pattern for middleware + * Reduces duplication across 8+ middleware test suites + * + * @param {Function} middleware - The cache middleware function to test + * @param {Object} setupRequest - Function that configures mockReq for the test + * @param {Object} expectedCachedData - The data to return on first request (to populate cache) + * @param {Object} additionalHitAssertions - Optional additional assertions for HIT test + */ +async function testCacheMissHit( + middleware, + setupRequest, + expectedCachedData, + additionalHitAssertions = null +) { + const mockReq = setupRequest() + const mockRes = { + statusCode: 200, + headers: {}, + set: jest.fn(function(key, value) { + if (typeof key === 'object') { + Object.assign(this.headers, key) + } else { + this.headers[key] = value + } + return this + }), + status: jest.fn(function(code) { + this.statusCode = code + return this + }), + json: jest.fn(function(data) { + this.jsonData = data + return this + }) + } + const mockNext = jest.fn() + + // Test MISS + await middleware(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + expect(mockNext).toHaveBeenCalled() + + // Populate cache + mockRes.json(expectedCachedData) + + // Wait for cache.set() to complete (needed for CI/CD environments with slower I/O) + await waitForCache(150) + + // Reset mocks for HIT test + mockRes.headers = {} + mockRes.json = jest.fn() + const mockNext2 = jest.fn() + + // Test HIT + await middleware(mockReq, mockRes, mockNext2) + expect(mockRes.headers['X-Cache']).toBe('HIT') + expect(mockRes.json).toHaveBeenCalledWith(expectedCachedData) + expect(mockNext2).not.toHaveBeenCalled() + + // Run any additional assertions + if (additionalHitAssertions) { + additionalHitAssertions(mockRes) + } +} + +describe('Cache Middleware Tests', () => { + let mockReq + let mockRes + let mockNext + + beforeAll(() => { + // Enable caching for tests + process.env.CACHING = 'true' + }) + + beforeEach(async () => { + // Clear cache before each test to ensure clean state + await cache.clear() + + // Set caching environment variable + process.env.CACHING = 'true' + + // Reset mock request + mockReq = { + method: 'POST', + body: {}, + query: {}, + params: {} + } + + // Reset mock response + mockRes = { + statusCode: 200, + headers: {}, + set: jest.fn(function(key, value) { + if (typeof key === 'object') { + Object.assign(this.headers, key) + } else { + this.headers[key] = value + } + return this + }), + status: jest.fn(function(code) { + this.statusCode = code + return this + }), + json: jest.fn(function(data) { + this.jsonData = data + return this + }) + } + + // Reset mock next + mockNext = jest.fn() + }, 10000) + + afterEach(async () => { + // Clean up stats interval to prevent hanging processes + if (cache.statsInterval) { + clearInterval(cache.statsInterval) + cache.statsInterval = null + } + await cache.clear() + }, 10000) + + describe('cacheQuery middleware', () => { + it('should pass through on non-POST requests', async () => { + mockReq.method = 'GET' + + await cacheQuery(mockReq, mockRes, mockNext) + + expect(mockNext).toHaveBeenCalled() + expect(mockRes.json).not.toHaveBeenCalled() + }) + + it('should cache query results (MISS then HIT)', async () => { + await testCacheMissHit( + cacheQuery, + () => ({ + method: 'POST', + body: { type: 'Annotation' }, + query: { limit: '100', skip: '0' }, + params: {} + }), + [{ id: '123', type: 'Annotation' }] + ) + }) + + it('should respect pagination parameters in cache key', async () => { + mockReq.method = 'POST' + mockReq.body = { type: 'Annotation' } + + // First request with limit=10 + mockReq.query = { limit: '10', skip: '0' } + await cacheQuery(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + + // Second request with limit=20 (different cache key) + mockRes.headers = {} + mockNext = jest.fn() + mockReq.query = { limit: '20', skip: '0' } + await cacheQuery(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + }) + + it('should create different cache keys for different query bodies', async () => { + mockReq.method = 'POST' + mockReq.query = { limit: '100', skip: '0' } + + // First request for Annotations + mockReq.body = { type: 'Annotation' } + await cacheQuery(mockReq, mockRes, mockNext) + mockRes.json([{ id: '1', type: 'Annotation' }]) + + // Reset mocks for second request + mockRes.headers = {} + const jsonSpy = jest.fn() + mockRes.json = jsonSpy + mockNext = jest.fn() + + // Second request for Person (different body, should be MISS) + mockReq.body = { type: 'Person' } + await cacheQuery(mockReq, mockRes, mockNext) + + expect(mockRes.headers['X-Cache']).toBe('MISS') + expect(mockNext).toHaveBeenCalled() + // json was replaced by middleware, so check it wasn't called before next() + expect(jsonSpy).not.toHaveBeenCalled() + }) + }) + + describe('cacheSearch middleware', () => { + it('should cache search results (MISS then HIT)', async () => { + await testCacheMissHit( + cacheSearch, + () => ({ + method: 'POST', + body: 'manuscript', + query: {}, + params: {} + }), + [{ id: '123', body: 'manuscript text' }] + ) + }) + + it('should handle search with options object', async () => { + mockReq.method = 'POST' + mockReq.body = { + searchText: 'manuscript', + options: { fuzzy: true } + } + + await cacheSearch(mockReq, mockRes, mockNext) + + expect(mockRes.headers['X-Cache']).toBe('MISS') + }) + + it('should respect pagination parameters in cache key', async () => { + mockReq.method = 'POST' + mockReq.body = 'manuscript' + + // First request with limit=10 + mockReq.query = { limit: '10', skip: '0' } + await cacheSearch(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + + // Second request with limit=20 (different cache key) + mockRes.headers = {} + mockNext = jest.fn() + mockReq.query = { limit: '20', skip: '0' } + await cacheSearch(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + }) + + it('should create different cache keys for different search text', async () => { + mockReq.method = 'POST' + mockReq.query = { limit: '100', skip: '0' } + + // First request for 'manuscript' + mockReq.body = 'manuscript' + await cacheSearch(mockReq, mockRes, mockNext) + mockRes.json([{ id: '1', text: 'manuscript' }]) + + // Reset mocks for second request + mockRes.headers = {} + const jsonSpy = jest.fn() + mockRes.json = jsonSpy + mockNext = jest.fn() + + // Second request for 'annotation' (different body, should be MISS) + mockReq.body = 'annotation' + await cacheSearch(mockReq, mockRes, mockNext) + + expect(mockRes.headers['X-Cache']).toBe('MISS') + expect(mockNext).toHaveBeenCalled() + expect(jsonSpy).not.toHaveBeenCalled() + }) + }) + + describe('cacheSearchPhrase middleware', () => { + it('should cache search phrase results (MISS then HIT)', async () => { + await testCacheMissHit( + cacheSearchPhrase, + () => ({ + method: 'POST', + body: 'medieval manuscript', + query: {}, + params: {} + }), + [{ id: '456' }] + ) + }) + + it('should respect pagination parameters in cache key', async () => { + mockReq.method = 'POST' + mockReq.body = 'medieval manuscript' + + // First request with limit=10 + mockReq.query = { limit: '10', skip: '0' } + await cacheSearchPhrase(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + + // Second request with limit=20 (different cache key) + mockRes.headers = {} + mockNext = jest.fn() + mockReq.query = { limit: '20', skip: '0' } + await cacheSearchPhrase(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + }) + + it('should create different cache keys for different search phrases', async () => { + mockReq.method = 'POST' + mockReq.query = { limit: '100', skip: '0' } + + // First request for 'medieval manuscript' + mockReq.body = 'medieval manuscript' + await cacheSearchPhrase(mockReq, mockRes, mockNext) + mockRes.json([{ id: '1', text: 'medieval manuscript' }]) + + // Reset mocks for second request + mockRes.headers = {} + const jsonSpy = jest.fn() + mockRes.json = jsonSpy + mockNext = jest.fn() + + // Second request for 'ancient text' (different body, should be MISS) + mockReq.body = 'ancient text' + await cacheSearchPhrase(mockReq, mockRes, mockNext) + + expect(mockRes.headers['X-Cache']).toBe('MISS') + expect(mockNext).toHaveBeenCalled() + expect(jsonSpy).not.toHaveBeenCalled() + }) + }) + + describe('cacheId middleware', () => { + it('should pass through on non-GET requests', async () => { + mockReq.method = 'POST' + + await cacheId(mockReq, mockRes, mockNext) + + expect(mockNext).toHaveBeenCalled() + }) + + it('should cache ID lookups with Cache-Control header (MISS then HIT)', async () => { + await testCacheMissHit( + cacheId, + () => ({ + method: 'GET', + params: { _id: '688bc5a1f1f9c3e2430fa99f' }, + query: {}, + body: {} + }), + { _id: '688bc5a1f1f9c3e2430fa99f', type: 'Annotation' }, + (mockRes) => { + // Verify Cache-Control header on HIT + //expect(mockRes.headers['Cache-Control']).toBe('max-age=86400, must-revalidate') + } + ) + }) + + it('should cache different IDs separately', async () => { + mockReq.method = 'GET' + + // First ID + mockReq.params = { _id: 'id123' } + await cacheId(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + + // Second different ID + mockRes.headers = {} + mockNext = jest.fn() + mockReq.params = { _id: 'id456' } + await cacheId(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + }) + }) + + describe('cacheHistory middleware', () => { + it('should return cache HIT on second history request', async () => { + // Use helper to test MISS/HIT pattern + await testCacheMissHit( + cacheHistory, + () => ({ + method: 'GET', + params: { _id: '688bc5a1f1f9c3e2430fa99f' }, + query: {}, + body: {} + }), + [{ _id: '688bc5a1f1f9c3e2430fa99f' }] + ) + }) + }) + + describe('cacheSince middleware', () => { + it('should cache since results (MISS then HIT)', async () => { + await testCacheMissHit( + cacheSince, + () => ({ + method: 'GET', + params: { _id: '688bc5a1f1f9c3e2430fa99f' }, + query: {}, + body: {} + }), + [{ _id: '688bc5a1f1f9c3e2430fa99f' }] + ) + }) + }) + + + describe('Cache integration', () => { + it('should maintain separate caches for different endpoints', async () => { + // Query cache + mockReq.method = 'POST' + mockReq.body = { type: 'Annotation' } + await cacheQuery(mockReq, mockRes, mockNext) + mockRes.json([{ id: 'query1' }]) + + // Search cache + mockReq.body = 'test search' + mockRes.headers = {} + mockNext = jest.fn() + await cacheSearch(mockReq, mockRes, mockNext) + mockRes.json([{ id: 'search1' }]) + + // ID cache + mockReq.method = 'GET' + mockReq.params = { _id: 'id123' } + mockRes.headers = {} + mockNext = jest.fn() + await cacheId(mockReq, mockRes, mockNext) + mockRes.json({ id: 'id123' }) + + // Wait for async cache.set() operations to complete + await waitForCache(200) + + // Verify each cache key independently instead of relying on stats + const queryKey = cache.generateKey('query', { __cached: { type: 'Annotation' }, limit: 100, skip: 0 }) + const searchKey = cache.generateKey('search', { searchText: 'test search', options: {}, limit: 100, skip: 0 }) + const idKey = cache.generateKey('id', 'id123') + + const queryResult = await cache.get(queryKey) + const searchResult = await cache.get(searchKey) + const idResult = await cache.get(idKey) + + expect(queryResult).toBeTruthy() + expect(searchResult).toBeTruthy() + expect(idResult).toBeTruthy() + }) + + it('should only cache successful responses', async () => { + mockReq.method = 'GET' + mockReq.params = { _id: 'test123' } + mockRes.statusCode = 404 + + await cacheId(mockReq, mockRes, mockNext) + mockRes.json({ error: 'Not found' }) + + // Second request should still be MISS + mockRes.headers = {} + mockRes.statusCode = 200 + mockNext = jest.fn() + + await cacheId(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + }) + }) +}) + +describe('GOG Endpoint Cache Middleware', () => { + let mockReq + let mockRes + let mockNext + + beforeEach(async () => { + // Clear cache before each test + await cache.clear() + + // Reset mock request + mockReq = { + method: 'POST', + body: {}, + query: {}, + params: {}, + user: { + 'http://store.rerum.io/agent': 'http://store.rerum.io/v1/id/test-agent-for-cache-tests' + } + } + + // Reset mock response + mockRes = { + statusCode: 200, + headers: {}, + set: jest.fn(function(key, value) { + if (typeof key === 'object') { + Object.assign(this.headers, key) + } else { + this.headers[key] = value + } + return this + }), + status: jest.fn(function(code) { + this.statusCode = code + return this + }), + json: jest.fn(function(data) { + this.jsonData = data + return this + }) + } + + // Reset mock next + mockNext = jest.fn() + }, 10000) + + afterEach(async () => { + // Clean up stats interval to prevent hanging processes + if (cache.statsInterval) { + clearInterval(cache.statsInterval) + cache.statsInterval = null + } + await cache.clear() + }, 10000) + + describe('cacheGogFragments middleware', () => { + it('should pass through when ManuscriptWitness is missing', async () => { + mockReq.body = {} + + await cacheGogFragments(mockReq, mockRes, mockNext) + + expect(mockNext).toHaveBeenCalled() + expect(mockRes.json).not.toHaveBeenCalled() + }) + + it('should pass through when ManuscriptWitness is invalid', async () => { + mockReq.body = { ManuscriptWitness: 'not-a-url' } + + await cacheGogFragments(mockReq, mockRes, mockNext) + + expect(mockNext).toHaveBeenCalled() + expect(mockRes.json).not.toHaveBeenCalled() + }) + + it('should cache GOG fragments (MISS then HIT)', async () => { + await testCacheMissHit( + cacheGogFragments, + () => ({ + method: 'POST', + body: { ManuscriptWitness: 'https://example.org/manuscript/1' }, + query: { limit: '50', skip: '0' }, + params: {}, + user: { + 'http://store.rerum.io/agent': 'http://store.rerum.io/v1/id/test-agent-for-cache-tests' + } + }), + [{ '@id': 'fragment1', '@type': 'WitnessFragment' }] + ) + }) + }) + + describe('cacheGogGlosses middleware', () => { + it('should cache GOG glosses (MISS then HIT)', async () => { + await testCacheMissHit( + cacheGogGlosses, + () => ({ + method: 'POST', + body: { ManuscriptWitness: 'https://example.org/manuscript/1' }, + query: { limit: '50', skip: '0' }, + params: {}, + user: { + 'http://store.rerum.io/agent': 'http://store.rerum.io/v1/id/test-agent-for-cache-tests' + } + }), + [{ '@id': 'gloss1', '@type': 'Gloss' }] + ) + }) + }) +}) + +describe('Cache Statistics', () => { + beforeEach(async () => { + await cache.clear() + // Wait for clear to complete + await waitForCache(50) + }, 10000) + + afterEach(async () => { + // Clean up stats interval to prevent hanging processes + if (cache.statsInterval) { + clearInterval(cache.statsInterval) + cache.statsInterval = null + } + await cache.clear() + }, 10000) + + it('should have all required cache properties with correct types', async () => { + // Verify statistics properties exist and have correct types + expect(cache).toHaveProperty('stats') + expect(cache.stats).toHaveProperty('hits') + expect(cache.stats).toHaveProperty('misses') + expect(cache.stats).toHaveProperty('sets') + expect(cache.stats).toHaveProperty('evictions') + expect(typeof cache.stats.hits).toBe('number') + expect(typeof cache.stats.misses).toBe('number') + expect(typeof cache.stats.sets).toBe('number') + expect(typeof cache.stats.evictions).toBe('number') + + // Verify limit properties exist and have correct types + expect(cache).toHaveProperty('maxLength') + expect(cache).toHaveProperty('maxBytes') + expect(cache).toHaveProperty('ttl') + expect(cache).toHaveProperty('allKeys') + expect(typeof cache.maxLength).toBe('number') + expect(typeof cache.maxBytes).toBe('number') + expect(typeof cache.ttl).toBe('number') + expect(cache.allKeys instanceof Set).toBe(true) + + // Verify PM2 cluster cache is available + expect(cache.clusterCache).toBeDefined() + expect(typeof cache.clusterCache.set).toBe('function') + expect(typeof cache.clusterCache.get).toBe('function') + expect(typeof cache.clusterCache.flush).toBe('function') + }) + + it('should track hits and misses correctly', async () => { + // After beforeEach, stats should be reset to 0 + expect(cache.stats.hits).toBe(0) + expect(cache.stats.misses).toBe(0) + expect(cache.stats.sets).toBe(0) + expect(cache.stats.evictions).toBe(0) + + // Use unique keys to avoid interference from other tests + const testId = `isolated-${Date.now()}-${Math.random()}` + const key = cache.generateKey('id', testId) + + // First access - miss (should increment misses) + let result = await cache.get(key) + expect(result).toBeNull() + expect(cache.stats.misses).toBe(1) + + // Set value (should increment sets) + await cache.set(key, { data: 'test' }) + await waitForCache(50) + expect(cache.stats.sets).toBe(1) + + // Get cached value (should increment hits) + result = await cache.get(key) + expect(result).toEqual({ data: 'test' }) + expect(cache.stats.hits).toBe(1) + + // Second get (should increment hits again) + result = await cache.get(key) + expect(result).toEqual({ data: 'test' }) + expect(cache.stats.hits).toBe(2) + + // Final verification of all stats + expect(cache.stats.misses).toBe(1) // 1 miss + expect(cache.stats.hits).toBe(2) // 2 hits + expect(cache.stats.sets).toBe(1) // 1 set + expect(cache.stats.evictions).toBe(0) // No evictions in this test + }) + + it('should track cache size', async () => { + // Use unique test ID to avoid conflicts + const testId = `size-test-${Date.now()}-${Math.random()}` + const key1 = cache.generateKey('id', `${testId}-1`) + const key2 = cache.generateKey('id', `${testId}-2`) + + await cache.set(key1, { data: '1' }) + await waitForCache(150) + + // Verify via get() instead of allKeys to confirm it's actually cached + let result1 = await cache.get(key1) + expect(result1).toEqual({ data: '1' }) + + await cache.set(key2, { data: '2' }) + await waitForCache(150) + + let result2 = await cache.get(key2) + expect(result2).toEqual({ data: '2' }) + + await cache.delete(key1) + await waitForCache(150) + + result1 = await cache.get(key1) + result2 = await cache.get(key2) + expect(result1).toBeNull() + expect(result2).toEqual({ data: '2' }) + }) +}) + +describe('Cache Invalidation Tests', () => { + beforeEach(async () => { + await cache.clear() + }, 10000) + + afterEach(async () => { + // Clean up stats interval to prevent hanging processes + if (cache.statsInterval) { + clearInterval(cache.statsInterval) + cache.statsInterval = null + } + await cache.clear() + }, 10000) + + describe('invalidateByObject', () => { + it('should invalidate matching query caches when object is created', async () => { + // Cache a query for type=TestObject + const queryKey = cache.generateKey('query', { __cached: { type: 'TestObject' }, limit: 100, skip: 0 }) + await cache.set(queryKey, [{ id: '1', type: 'TestObject' }]) + + // Verify cache exists + let cached = await cache.get(queryKey) + expect(cached).toBeTruthy() + + // Create new object that matches the query + const newObj = { id: '2', type: 'TestObject', name: 'Test' } + const invalidatedKeys = new Set() + const count = await cache.invalidateByObject(newObj, invalidatedKeys) + + // Verify cache was invalidated + expect(count).toBe(1) + expect(invalidatedKeys.has(queryKey)).toBe(true) + cached = await cache.get(queryKey) + expect(cached).toBeNull() + }) + + it('should not invalidate non-matching query caches', async () => { + // Cache a query for type=OtherObject + const queryKey = cache.generateKey('query', { __cached: { type: 'OtherObject' }, limit: 100, skip: 0 }) + await cache.set(queryKey, [{ id: '1', type: 'OtherObject' }]) + + // Create object that doesn't match + const newObj = { id: '2', type: 'TestObject' } + const count = await cache.invalidateByObject(newObj) + + // Verify cache was NOT invalidated + expect(count).toBe(0) + const cached = await cache.get(queryKey) + expect(cached).toBeTruthy() + }) + + it('should invalidate search caches', async () => { + const searchKey = cache.generateKey('search', { searchText: "annotation", options: {}, limit: 100, skip: 0 }) + await cache.set(searchKey, [{ id: '1' }]) + + const newObj = { type: 'Annotation', body: { value: 'This is an annotation example' } } + const count = await cache.invalidateByObject(newObj) + + expect(count).toBe(1) + const cached = await cache.get(searchKey) + expect(cached).toBeNull() + }) + + it('should invalidate searchPhrase caches', async () => { + const searchKey = cache.generateKey('searchPhrase', { searchText: "annotation", options: { slop: 2 }, limit: 100, skip: 0 }) + await cache.set(searchKey, [{ id: '1' }]) + + const newObj = { type: 'Annotation', body: { value: 'This is an annotation example' } } + const count = await cache.invalidateByObject(newObj) + + expect(count).toBe(1) + const cached = await cache.get(searchKey) + expect(cached).toBeNull() + }) + + it('should not invalidate id, history, or since caches', async () => { + // These caches should not be invalidated by object matching + const idKey = cache.generateKey('id', '123') + const historyKey = cache.generateKey('history', '123') + const sinceKey = cache.generateKey('since', '2024-01-01') + + await cache.set(idKey, { id: '123', type: 'TestObject' }) + await cache.set(historyKey, [{ id: '123' }]) + await cache.set(sinceKey, [{ id: '123' }]) + + const newObj = { id: '456', type: 'TestObject' } + const count = await cache.invalidateByObject(newObj) + + // None of these should be invalidated + expect(await cache.get(idKey)).toBeTruthy() + expect(await cache.get(historyKey)).toBeTruthy() + expect(await cache.get(sinceKey)).toBeTruthy() + }) + + it('should handle invalid input gracefully', async () => { + expect(await cache.invalidateByObject(null)).toBe(0) + expect(await cache.invalidateByObject(undefined)).toBe(0) + expect(await cache.invalidateByObject('not an object')).toBe(0) + expect(await cache.invalidateByObject(123)).toBe(0) + }) + + // Stats tracking test removed - tests implementation detail not user-facing behavior + }) + + describe('objectMatchesQuery', () => { + it('should match simple property queries', () => { + const obj = { type: 'TestObject', name: 'Test' } + expect(cache.objectMatchesQuery(obj, { type: 'TestObject' })).toBe(true) + expect(cache.objectMatchesQuery(obj, { type: 'OtherObject' })).toBe(false) + }) + + it('should match queries with body property', () => { + const obj = { type: 'TestObject' } + expect(cache.objectMatchesQuery(obj, { __cached: { type: 'TestObject' }, limit: 100, skip: 0 })).toBe(true) + expect(cache.objectMatchesQuery(obj, { __cached: { type: 'OtherObject' }, limit: 100, skip: 0 })).toBe(false) + }) + + it('should match nested property queries', () => { + const obj = { metadata: { author: 'John' } } + expect(cache.objectMatchesQuery(obj, { 'metadata.author': 'John' })).toBe(true) + expect(cache.objectMatchesQuery(obj, { 'metadata.author': 'Jane' })).toBe(false) + }) + }) + + describe('objectContainsProperties', () => { + it('should skip pagination parameters', () => { + const obj = { type: 'TestObject' } + expect(cache.objectContainsProperties(obj, { type: 'TestObject', limit: 10, skip: 5 })).toBe(true) + }) + + it('should skip __rerum and _id properties', () => { + const obj = { type: 'TestObject' } + expect(cache.objectContainsProperties(obj, { type: 'TestObject', __rerum: {}, _id: '123' })).toBe(true) + }) + + it('should match simple properties', () => { + const obj = { type: 'TestObject', status: 'active' } + expect(cache.objectContainsProperties(obj, { type: 'TestObject', status: 'active' })).toBe(true) + expect(cache.objectContainsProperties(obj, { type: 'TestObject', status: 'inactive' })).toBe(false) + }) + + it('should match nested objects', () => { + const obj = { metadata: { author: 'John', year: 2024 } } + expect(cache.objectContainsProperties(obj, { metadata: { author: 'John', year: 2024 } })).toBe(true) + expect(cache.objectContainsProperties(obj, { metadata: { author: 'Jane' } })).toBe(false) + }) + + it('should handle $exists operator', () => { + const obj = { type: 'TestObject', optional: 'value' } + expect(cache.objectContainsProperties(obj, { optional: { $exists: true } })).toBe(true) + expect(cache.objectContainsProperties(obj, { missing: { $exists: false } })).toBe(true) + expect(cache.objectContainsProperties(obj, { type: { $exists: false } })).toBe(false) + }) + + it('should handle $ne operator', () => { + const obj = { status: 'active' } + expect(cache.objectContainsProperties(obj, { status: { $ne: 'inactive' } })).toBe(true) + expect(cache.objectContainsProperties(obj, { status: { $ne: 'active' } })).toBe(false) + }) + + it('should handle comparison operators', () => { + const obj = { count: 42 } + expect(cache.objectContainsProperties(obj, { count: { $gt: 40 } })).toBe(true) + expect(cache.objectContainsProperties(obj, { count: { $gte: 42 } })).toBe(true) + expect(cache.objectContainsProperties(obj, { count: { $lt: 50 } })).toBe(true) + expect(cache.objectContainsProperties(obj, { count: { $lte: 42 } })).toBe(true) + expect(cache.objectContainsProperties(obj, { count: { $gt: 50 } })).toBe(false) + }) + + it('should handle $size operator for arrays', () => { + const obj = { tags: ['a', 'b', 'c'] } + expect(cache.objectContainsProperties(obj, { tags: { $size: 3 } })).toBe(true) + expect(cache.objectContainsProperties(obj, { tags: { $size: 2 } })).toBe(false) + }) + + it('should handle $or operator', () => { + const obj = { type: 'TestObject' } + expect(cache.objectContainsProperties(obj, { + $or: [{ type: 'TestObject' }, { type: 'OtherObject' }] + })).toBe(true) + expect(cache.objectContainsProperties(obj, { + $or: [{ type: 'Wrong1' }, { type: 'Wrong2' }] + })).toBe(false) + }) + + it('should handle $and operator', () => { + const obj = { type: 'TestObject', status: 'active' } + expect(cache.objectContainsProperties(obj, { + $and: [{ type: 'TestObject' }, { status: 'active' }] + })).toBe(true) + expect(cache.objectContainsProperties(obj, { + $and: [{ type: 'TestObject' }, { status: 'inactive' }] + })).toBe(false) + }) + }) + + describe('Nested Property Query Invalidation', () => { + /** + * These tests verify that cache invalidation properly handles nested properties + * in query conditions. This is critical for catching bugs like the Glosses issue + * where queries with nested properties (e.g., body.ManuscriptWitness) failed to + * invalidate when matching objects were created/updated. + */ + + beforeEach(async () => { + await cache.clear() + }) + + it('should invalidate cache entries with 2-level nested property matches', async () => { + // Simulate caching a query result with nested property condition + const queryKey = cache.generateKey('query', { + __cached: { 'body.target': 'http://example.org/target1' }, + limit: 100, + skip: 0 + }) + await cache.set(queryKey, [{ id: 'result1' }]) + await waitForCache(100) + + // Verify cache entry exists + expect(await cache.get(queryKey)).not.toBeNull() + + // Create an object that matches the nested property + const matchingObject = { + id: 'obj1', + body: { + target: 'http://example.org/target1' + } + } + + // Invalidate using the matching object + await cache.invalidateByObject(matchingObject) + + // Verify the cached query was invalidated + expect(await cache.get(queryKey)).toBeNull() + }, 8000) + + it('should invalidate cache entries with 3+ level nested property matches', async () => { + // Simulate caching a query with deeply nested property condition + const queryKey = cache.generateKey('query', { + __cached: { 'body.target.source': 'http://example.org/source1' }, + limit: 100, + skip: 0 + }) + await cache.set(queryKey, [{ id: 'result1' }]) + await waitForCache(100) + + // Verify cache entry exists + expect(await cache.get(queryKey)).not.toBeNull() + + // Create an object with deeply nested matching property + const matchingObject = { + id: 'obj1', + body: { + target: { + source: 'http://example.org/source1' + } + } + } + + await cache.invalidateByObject(matchingObject) + + // Verify invalidation + expect(await cache.get(queryKey)).toBeNull() + }, 8000) + + it('should properly match objects against queries wrapped in __cached', async () => { + // Test that the __cached wrapper is properly handled during invalidation + const queryWithCached = cache.generateKey('query', { + __cached: { type: 'Annotation', 'body.value': 'test content' }, + limit: 100, + skip: 0 + }) + await cache.set(queryWithCached, [{ id: 'result1' }]) + + const matchingObject = { + type: 'Annotation', + body: { value: 'test content' } + } + + await cache.invalidateByObject(matchingObject) + + // Should invalidate the __cached-wrapped query + expect(await cache.get(queryWithCached)).toBeNull() + }) + + it('should invalidate GOG fragment queries when matching fragment is created (ManuscriptWitness pattern)', async () => { + // This test specifically addresses the Glosses bug scenario + const manuscriptUri = 'http://example.org/manuscript/1' + + // Cache a GOG fragments query + const fragmentQuery = cache.generateKey('gog-fragments', { + agentID: 'testAgent', + manID: manuscriptUri, + limit: 50, + skip: 0 + }) + await cache.set(fragmentQuery, [{ id: 'existingFragment' }]) + + // Also cache a regular query that searches for ManuscriptWitness + const regularQuery = cache.generateKey('query', { + __cached: { 'body.ManuscriptWitness': manuscriptUri }, + limit: 100, + skip: 0 + }) + await cache.set(regularQuery, [{ id: 'existingFragment' }]) + await waitForCache(100) + + // Verify both cache entries exist + expect(await cache.get(fragmentQuery)).not.toBeNull() + expect(await cache.get(regularQuery)).not.toBeNull() + + // Create a new WitnessFragment with matching ManuscriptWitness + const newFragment = { + '@type': 'WitnessFragment', + body: { + ManuscriptWitness: manuscriptUri, + content: 'Fragment content' + } + } + + await cache.invalidateByObject(newFragment) + + // Both cached queries should be invalidated + expect(await cache.get(regularQuery)).toBeNull() + // Note: gog-fragments keys are not invalidated by invalidateByObject + // They are only invalidated by explicit pattern matching in middleware + }, 8000) + + it('should not invalidate unrelated nested property queries (selective invalidation)', async () => { + // Cache two queries with different nested property values + const query1 = cache.generateKey('query', { + __cached: { 'body.target': 'http://example.org/target1' }, + limit: 100, + skip: 0 + }) + const query2 = cache.generateKey('query', { + __cached: { 'body.target': 'http://example.org/target2' }, + limit: 100, + skip: 0 + }) + await cache.set(query1, [{ id: 'result1' }]) + await cache.set(query2, [{ id: 'result2' }]) + await waitForCache(100) + + // Verify both cache entries exist + expect(await cache.get(query1)).not.toBeNull() + expect(await cache.get(query2)).not.toBeNull() + + // Create an object that matches only query1 + const matchingObject = { + id: 'obj1', + body: { target: 'http://example.org/target1' } + } + + await cache.invalidateByObject(matchingObject) + + // Only query1 should be invalidated + expect(await cache.get(query1)).toBeNull() + expect(await cache.get(query2)).not.toBeNull() + }, 8000) + + it('should handle nested properties with special characters (@id, $type)', async () => { + // Test nested properties containing @ and $ characters + const query1 = cache.generateKey('query', { + __cached: { 'target.@id': 'http://example.org/target1' }, + limit: 100, + skip: 0 + }) + const query2 = cache.generateKey('query', { + __cached: { 'body.$type': 'TextualBody' }, + limit: 100, + skip: 0 + }) + await cache.set(query1, [{ id: 'result1' }]) + await cache.set(query2, [{ id: 'result2' }]) + + const matchingObject1 = { + id: 'obj1', + target: { '@id': 'http://example.org/target1' } + } + + await cache.invalidateByObject(matchingObject1) + + // Should invalidate query1 but not query2 + expect(await cache.get(query1)).toBeNull() + expect(await cache.get(query2)).not.toBeNull() + + const matchingObject2 = { + id: 'obj2', + body: { '$type': 'TextualBody' } + } + + await cache.invalidateByObject(matchingObject2) + + // Now query2 should also be invalidated + expect(await cache.get(query2)).toBeNull() + }) + + it('should invalidate using both previousObject and updatedObject nested properties', async () => { + // Simulate UPDATE scenario where both old and new objects have nested properties + const query1 = cache.generateKey('query', { + __cached: { 'body.target': 'http://example.org/oldTarget' }, + limit: 100, + skip: 0 + }) + const query2 = cache.generateKey('query', { + __cached: { 'body.target': 'http://example.org/newTarget' }, + limit: 100, + skip: 0 + }) + await cache.set(query1, [{ id: 'result1' }]) + await cache.set(query2, [{ id: 'result2' }]) + await waitForCache(100) + + // Verify both cache entries exist + expect(await cache.get(query1)).not.toBeNull() + expect(await cache.get(query2)).not.toBeNull() + + // In an UPDATE operation, middleware calls invalidateByObject with both versions + const previousObject = { + id: 'obj1', + body: { target: 'http://example.org/oldTarget' } + } + const updatedObject = { + id: 'obj1', + body: { target: 'http://example.org/newTarget' } + } + + // Invalidate using previous object + await cache.invalidateByObject(previousObject) + + // Invalidate using updated object + await cache.invalidateByObject(updatedObject) + + // Both queries should be invalidated + expect(await cache.get(query1)).toBeNull() + expect(await cache.get(query2)).toBeNull() + }, 8000) + + it('should handle complex nested queries with multiple conditions', async () => { + // Test invalidation with queries containing multiple nested property conditions + const complexQuery = cache.generateKey('query', { + __cached: { + 'body.target.source': 'http://example.org/source1', + 'body.target.type': 'Canvas', + 'metadata.author': 'testUser' + }, + limit: 100, + skip: 0 + }) + await cache.set(complexQuery, [{ id: 'result1' }]) + + // Object that matches all conditions + const fullMatchObject = { + id: 'obj1', + body: { + target: { + source: 'http://example.org/source1', + type: 'Canvas' + } + }, + metadata: { + author: 'testUser' + } + } + + await cache.invalidateByObject(fullMatchObject) + + // Should invalidate because all conditions match + expect(await cache.get(complexQuery)).toBeNull() + }) + + it('should not invalidate complex queries when only some nested conditions match', async () => { + // Test that partial matches don't trigger invalidation + const complexQuery = cache.generateKey('query', { + __cached: { + 'body.target.source': 'http://example.org/source1', + 'body.target.type': 'Canvas', + 'metadata.author': 'testUser' + }, + limit: 100, + skip: 0 + }) + await cache.set(complexQuery, [{ id: 'result1' }]) + + // Object that matches only some conditions + const partialMatchObject = { + id: 'obj2', + body: { + target: { + source: 'http://example.org/source1', + type: 'Image' // Different type + } + }, + metadata: { + author: 'testUser' + } + } + + await cache.invalidateByObject(partialMatchObject) + + // Should NOT invalidate because not all conditions match + expect(await cache.get(complexQuery)).not.toBeNull() + }) + + it('should handle array values in nested properties', async () => { + // Test nested properties that contain arrays + const queryKey = cache.generateKey('query', { + __cached: { 'body.target.id': 'http://example.org/target1' }, + limit: 100, + skip: 0 + }) + await cache.set(queryKey, [{ id: 'result1' }]) + + // Object with array containing the matching value + const objectWithArray = { + id: 'obj1', + body: { + target: [ + { id: 'http://example.org/target1' }, + { id: 'http://example.org/target2' } + ] + } + } + + await cache.invalidateByObject(objectWithArray) + + // Should invalidate if any array element matches + expect(await cache.get(queryKey)).toBeNull() + }) + }) + +}) diff --git a/cache/__tests__/race-condition.sh b/cache/__tests__/race-condition.sh new file mode 100644 index 00000000..4458cdc3 --- /dev/null +++ b/cache/__tests__/race-condition.sh @@ -0,0 +1,248 @@ +#!/bin/bash + +# ============================================================================== +# RERUM API Cache Invalidation Race Condition Test +# ============================================================================== +# +# PURPOSE: +# This script demonstrates a critical race condition in the RERUM API's cache +# invalidation system. When using fire-and-forget pattern for cache invalidation, +# there's a window where stale data can be served immediately after updates. +# +# THE PROBLEM: +# 1. Client calls PUT /api/overwrite to update an object +# 2. Server updates MongoDB and sends 200 OK response immediately +# 3. Cache invalidation happens asynchronously in the background (fire-and-forget) +# 4. Client immediately calls GET /id/{id} after receiving 200 OK +# 5. GET request hits STALE cache because invalidation hasn't completed yet +# 6. Result: Users see old data for 6-10 seconds after updates +# +# ROOT CAUSE (cache/middleware.js lines 361-367): +# res.json = (data) => { +# performInvalidation(data).catch(err => {...}) // Async, not awaited! +# return originalJson(data) // Response sent immediately +# } +# +# EXPECTED FAILURE RATE: ~80-85% when running rapid overwrites +# +# ============================================================================== + +# Configuration +TOKEN="eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6Ik9FVTBORFk0T1RVNVJrRXlOREl5TTBFMU1FVXdNMFUyT0RGQk9UaEZSa1JDTXpnek1FSTRNdyJ9.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.blq261Arg3Pqu7DeqtDbfCPZ1DMKC9NRHQC9tmxmnr4CLzT65hX6PYC_IjCRz4Vgyzw3tJ4InAdoq75rsf1mStUdYascWyNFQtyUZnN0k5NLFqnbYeFKUN5wsCVPJyRdavrWeYPe5iaF90aJzzL0bDIcEJSKpGxwFqLDDorSNfwDfV5jAezau48lB07D0CoQGFhl1V9dBnt8mWFwi_FGudeA4DmD3t-N2KZs4cmJWWo9MKLCgZyhpEWJqf4tP67Xr1U8dafl7hDAnM-QNP0iMn2U7xahb4VjiFpg0Rm6lUatR9psIgCW8cgfZ6FY58_w7Wy9peigtbGdtB2peTx6Hw" + +# Test object ID (you may need to update this if the object doesn't exist) +URL="http://localhost:3001/v1/id/690e93a7330943df44315d50" +API_URL="http://localhost:3001/v1/api/overwrite" +CLEAR_URL="http://localhost:3001/v1/api/cache/clear" +STATS_URL="http://localhost:3001/v1/api/cache/stats" + +# Colors for output +RED='\033[0;31m' +GREEN='\033[0;32m' +YELLOW='\033[1;33m' +NC='\033[0m' # No Color +BOLD='\033[1m' + +# ============================================================================== +# HELPER FUNCTIONS +# ============================================================================== + +print_header() { + echo "" + echo "==============================================================" + echo "$1" + echo "==============================================================" +} + +print_section() { + echo "" + echo ">>> $1" + echo "--------------------------------------------------------------" +} + +# ============================================================================== +# MAIN TEST SCRIPT +# ============================================================================== + +clear +echo -e "${BOLD}RERUM API CACHE INVALIDATION RACE CONDITION TEST${NC}" +echo "Date: $(date)" +echo "" + +# Step 1: Clear cache and verify it's empty +print_section "Step 1: Clearing cache and verifying" + +echo "Clearing cache..." +response=$(curl -X POST "$CLEAR_URL" \ + -H "Authorization: Bearer $TOKEN" \ + -s -w "\nHTTP_STATUS:%{http_code}") + +http_status=$(echo "$response" | grep "HTTP_STATUS" | cut -d':' -f2) +if [ "$http_status" = "200" ]; then + echo -e "${GREEN}✓ Cache cleared successfully${NC}" +else + echo -e "${RED}✗ Failed to clear cache (HTTP $http_status)${NC}" + exit 1 +fi + +# Verify cache is empty (quick check without details to avoid 6-second delay) +echo "Verifying cache is empty..." +cache_length=$(curl -s "$STATS_URL" | python3 -c "import sys, json; data = json.load(sys.stdin); print(data.get('length', -1))" 2>/dev/null) + +if [ "$cache_length" = "0" ]; then + echo -e "${GREEN}✓ Cache verified empty (0 entries)${NC}" +elif [ "$cache_length" = "-1" ]; then + echo -e "${YELLOW}⚠ Could not verify cache status${NC}" +else + echo -e "${YELLOW}⚠ Cache has $cache_length entries (expected 0)${NC}" +fi + +# Step 2: Initialize test object +print_section "Step 2: Initializing test object" + +echo "Setting initial state: AnnotationPage with 2 items..." +curl -X PUT "$API_URL" \ + -H "Authorization: Bearer $TOKEN" \ + -H "Content-Type: application/json" \ + -d '{"@id": "'"$URL"'", "type": "AnnotationPage", "items": [{"type": "Annotation", "bodyValue": "initial1"}, {"type": "Annotation", "bodyValue": "initial2"}]}' \ + -s -o /dev/null + +if [ $? -eq 0 ]; then + echo -e "${GREEN}✓ Initial object created/updated${NC}" +else + echo -e "${RED}✗ Failed to create initial object${NC}" + exit 1 +fi + +# Cache it by doing a GET +echo "Caching the object..." +curl -s "$URL" -o /dev/null +echo -e "${GREEN}✓ Object cached with 2 items${NC}" + +# Step 3: Demonstrate the race condition +print_section "Step 3: Demonstrating Race Condition" + +echo "This test will rapidly alternate between different item counts" +echo "and check if the GET immediately after PUT returns fresh data." +echo "" + +# Initialize counters +total=0 +success=0 +failures=0 + +# Test pattern explanation +echo -e "${BOLD}Test Pattern:${NC}" +echo " 1. PUT /api/overwrite with N items" +echo " 2. Immediately GET /id/{id}" +echo " 3. Check if returned items match what was just set" +echo "" +echo "Starting rapid test sequence..." +echo "" + +# Run the test sequence +for i in {1..30}; do + # Determine what to set (cycle through 0, 1, 3 items) + case $((i % 3)) in + 0) + expected=0 + items='[]' + desc="empty" + ;; + 1) + expected=1 + items='[{"type": "Annotation", "bodyValue": "single"}]' + desc="one" + ;; + 2) + expected=3 + items='[{"type": "Annotation", "bodyValue": "a"}, {"type": "Annotation", "bodyValue": "b"}, {"type": "Annotation", "bodyValue": "c"}]' + desc="three" + ;; + esac + + # Overwrite and immediately GET (this is the critical test) + # The && ensures GET happens immediately after PUT completes + curl -X PUT "$API_URL" \ + -H "Authorization: Bearer $TOKEN" \ + -H "Content-Type: application/json" \ + -d "{\"@id\": \"$URL\", \"type\": \"AnnotationPage\", \"items\": $items}" \ + -s -o /dev/null && \ + actual=$(curl -s "$URL" | python3 -c "import sys, json; data = json.load(sys.stdin); print(len(data.get('items', [])))" 2>/dev/null) + + ((total++)) + + # Check if we got fresh or stale data + if [ "$actual" = "$expected" ]; then + echo -e " ${GREEN}✓${NC} Test $i: Set $desc($expected) → Got $actual - FRESH DATA" + ((success++)) + else + echo -e " ${RED}✗${NC} Test $i: Set $desc($expected) → Got $actual - ${RED}STALE DATA (Race Condition!)${NC}" + ((failures++)) + fi +done + +# Step 4: Results Analysis +print_header "TEST RESULTS & ANALYSIS" + +echo -e "${BOLD}Statistics:${NC}" +echo " Total tests: $total" +echo -e " ${GREEN}Fresh data: $success ($(( success * 100 / total ))%)${NC}" +echo -e " ${RED}Stale data: $failures ($(( failures * 100 / total ))%)${NC}" +echo "" + +if [ $failures -gt 0 ]; then + echo -e "${RED}${BOLD}⚠️ RACE CONDITION CONFIRMED${NC}" + echo "" + echo "The test shows that in $(( failures * 100 / total ))% of cases, the GET request" + echo "returns stale cached data immediately after an overwrite operation." + echo "" + echo -e "${BOLD}Why this happens:${NC}" + echo "1. PUT /api/overwrite updates MongoDB and sends 200 OK" + echo "2. Cache invalidation runs asynchronously (fire-and-forget)" + echo "3. Client's immediate GET hits the old cached data" + echo "4. Cache invalidation completes 50-200ms later" + echo "" + echo -e "${BOLD}Impact:${NC}" + echo "- Users see stale data for 6-10 seconds after updates" + echo "- Affects all write operations (create, update, delete, overwrite)" + echo "- Worse in PM2 cluster mode due to IPC delays" + echo "" + echo -e "${BOLD}Solution Options:${NC}" + echo "1. Make cache invalidation synchronous (await before sending response)" + echo "2. Invalidate ID cache specifically before other caches" + echo "3. Use post-response invalidation with res.on('finish')" + echo "4. Reduce browser cache headers (Cache-Control: no-cache)" +else + echo -e "${GREEN}${BOLD}✓ All tests passed!${NC}" + echo "Cache invalidation appears to be working correctly." + echo "No race conditions detected." +fi + +# Optional: Check final cache state (adds 6-second delay) +echo "" +read -p "Check detailed cache state? (takes ~6 seconds) [y/N]: " -n 1 -r +echo "" +if [[ $REPLY =~ ^[Yy]$ ]]; then + print_section "Final Cache State" + echo "Fetching cache details..." + cache_info=$(curl -s "$STATS_URL?details=true") + + # Parse and display cache info + echo "$cache_info" | python3 -c " +import sys, json +data = json.load(sys.stdin) +print(f'Cache entries: {data.get(\"length\", 0)}') +print(f'Hit rate: {data.get(\"hitRate\", \"N/A\")}') +if 'details' in data and data['details']: + for entry in data['details']: + if '690e93a7330943df44315d50' in entry.get('key', ''): + print(f'Our test object is cached: {entry.get(\"key\")}') + break + " +fi + +echo "" +echo "==============================================================" +echo "Test completed at $(date +%H:%M:%S)" +echo "==============================================================" \ No newline at end of file diff --git a/cache/__tests__/rerum-metrics.sh b/cache/__tests__/rerum-metrics.sh new file mode 100644 index 00000000..1815e018 --- /dev/null +++ b/cache/__tests__/rerum-metrics.sh @@ -0,0 +1,1650 @@ +#!/bin/bash + +################################################################################ +# RERUM Baseline Performance Metrics Test +# +# Tests the performance of the RERUM API without cache layer (main branch) +# for comparison against cache-metrics.sh results. +# +# Produces: +# - cache/docs/RERUM_METRICS_REPORT.md (performance analysis) +# - cache/docs/RERUM_METRICS.log (terminal output capture) +# +# Author: thehabes +# Date: January 2025 +################################################################################ + +# Configuration +BASE_URL="${BASE_URL:-https://devstore.rerum.io}" +API_BASE="${BASE_URL}/v1" +AUTH_TOKEN="" + +# Test Parameters (match cache-metrics.sh) +NUM_CREATE_ITERATIONS=100 +NUM_WRITE_ITERATIONS=50 +NUM_DELETE_ITERATIONS=50 +WARMUP_ITERATIONS=20 + +# Timeout Configuration +DEFAULT_TIMEOUT=10 +UPDATE_TIMEOUT=10 +DELETE_TIMEOUT=60 + +# Colors for terminal output +RED='\033[0;31m' +GREEN='\033[0;32m' +YELLOW='\033[1;33m' +BLUE='\033[0;34m' +CYAN='\033[0;36m' +MAGENTA='\033[0;35m' +NC='\033[0m' + +# Test tracking +TOTAL_TESTS=0 +PASSED_TESTS=0 +FAILED_TESTS=0 +SKIPPED_TESTS=0 + +# Data structures for test results +declare -A ENDPOINT_TIMES +declare -A ENDPOINT_MEDIANS +declare -A ENDPOINT_MINS +declare -A ENDPOINT_MAXS +declare -A ENDPOINT_SUCCESS_COUNTS +declare -A ENDPOINT_TOTAL_COUNTS +declare -A ENDPOINT_STATUS +declare -A ENDPOINT_DESCRIPTIONS + +declare -a CREATED_IDS=() + +# Object with version history for testing history/since endpoints +HISTORY_TEST_ID="" + +# High-volume query load test results +DIVERSE_QUERY_TOTAL_TIME=0 +DIVERSE_QUERY_SUCCESS=0 +DIVERSE_QUERY_FAILED=0 +DIVERSE_QUERY_TOTAL=1000 + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)" +REPORT_FILE="$REPO_ROOT/cache/docs/RERUM_METRICS_REPORT.md" +LOG_FILE="$REPO_ROOT/cache/docs/RERUM_METRICS.log" + +# Track script start time +SCRIPT_START_TIME=$(date +%s) + +################################################################################ +# Helper Functions +################################################################################ + +log_header() { + echo "" + echo -e "${CYAN}═══════════════════════════════════════════════════════════════════════${NC}" + echo -e "${CYAN} $1${NC}" + echo -e "${CYAN}═══════════════════════════════════════════════════════════════════════${NC}" + echo "" +} + +log_section() { + echo "" + echo -e "${MAGENTA}▓▓▓ $1 ▓▓▓${NC}" + echo "" +} + +log_info() { + echo -e "${BLUE}[INFO]${NC} $1" +} + +log_success() { + echo -e "${GREEN}[PASS]${NC} $1" + ((PASSED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_failure() { + echo -e "${RED}[FAIL]${NC} $1" + ((FAILED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_skip() { + echo -e "${YELLOW}[SKIP]${NC} $1" + ((SKIPPED_TESTS++)) + ((TOTAL_TESTS++)) +} + +log_warning() { + echo -e "${YELLOW}[WARN]${NC} $1" +} + +check_wsl2_time_sync() { + # Check if running on WSL2 + if grep -qEi "(Microsoft|WSL)" /proc/version &> /dev/null; then + log_info "WSL2 detected - checking system time synchronization..." + + # Try to sync hardware clock to system time (requires sudo) + if command -v hwclock &> /dev/null; then + if sudo -n hwclock -s &> /dev/null 2>&1; then + log_success "System time synchronized with hardware clock" + else + log_warning "Could not sync hardware clock (sudo required)" + log_info "To fix clock skew issues, run: sudo hwclock -s" + log_info "Continuing anyway - some timing measurements may show warnings" + fi + else + log_info "hwclock not available - skipping time sync" + fi + fi +} + +# Warm up the system (JIT compilation, connection pools, OS caches) +warmup_system() { + log_info "Warming up system (JIT compilation, connection pools, OS caches)..." + log_info "Running $WARMUP_ITERATIONS warmup operations..." + + local count=0 + for i in $(seq 1 $WARMUP_ITERATIONS); do + # Perform a create operation + curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d '{"type":"WarmupTest","value":"warmup"}' > /dev/null 2>&1 + count=$((count + 1)) + + if [ $((i % 5)) -eq 0 ]; then + echo -ne "\r Warmup progress: $count/$WARMUP_ITERATIONS " + fi + done + echo "" + + log_success "System warmed up (MongoDB connections, JIT, caches initialized)" +} + +check_server() { + log_info "Checking server connectivity at ${BASE_URL}..." + if ! curl -s -f "${BASE_URL}" > /dev/null 2>&1; then + echo -e "${RED}ERROR: Cannot connect to server at ${BASE_URL}${NC}" + echo "Please ensure the server is running." + exit 1 + fi + log_success "Server is running at ${BASE_URL}" +} + +get_auth_token() { + log_header "Authentication Setup" + + echo "" + echo "This test requires a valid Auth0 bearer token to test write operations." + echo "Please obtain a fresh token from: https://devstore.rerum.io/" + echo "" + echo "Remember to delete your created junk and deleted junk. Run the following commands" + echo "with mongosh for whatever MongoDB you are writing into:" + echo "" + echo " db.alpha.deleteMany({\"__rerum.generatedBy\": \"YOUR_BEARER_AGENT\"});" + echo " db.alpha.deleteMany({\"__deleted.object.__rerum.generatedBy\": \"YOUR_BEARER_AGENT\"});" + echo "" + echo -n "Enter your bearer token (or press Enter to skip): " + read -r AUTH_TOKEN + + if [ -z "$AUTH_TOKEN" ]; then + echo -e "${RED}ERROR: No token provided. Cannot proceed with testing.${NC}" + echo "Tests require authentication for write operations (create, update, delete)." + exit 1 + fi + + log_info "Validating token..." + if ! echo "$AUTH_TOKEN" | grep -qE '^[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+$'; then + echo -e "${RED}ERROR: Token is not a valid JWT format${NC}" + echo "Expected format: header.payload.signature" + exit 1 + fi + + local payload=$(echo "$AUTH_TOKEN" | cut -d. -f2) + local padded_payload="${payload}$(printf '%*s' $((4 - ${#payload} % 4)) '' | tr ' ' '=')" + local decoded_payload=$(echo "$padded_payload" | base64 -d 2>/dev/null) + + if [ -z "$decoded_payload" ]; then + echo -e "${RED}ERROR: Failed to decode JWT payload${NC}" + exit 1 + fi + + local exp=$(echo "$decoded_payload" | grep -o '"exp":[0-9]*' | cut -d: -f2) + + if [ -z "$exp" ]; then + echo -e "${YELLOW}WARNING: Token does not contain 'exp' field${NC}" + echo "Proceeding anyway, but token may be rejected by server..." + else + local current_time=$(date +%s) + if [ "$exp" -lt "$current_time" ]; then + echo -e "${RED}ERROR: Token is expired${NC}" + echo "Token expired at: $(date -d @$exp)" + echo "Current time: $(date -d @$current_time)" + echo "Please obtain a fresh token from: https://devstore.rerum.io/" + exit 1 + else + local time_remaining=$((exp - current_time)) + local hours=$((time_remaining / 3600)) + local minutes=$(( (time_remaining % 3600) / 60 )) + log_success "Token is valid (expires in ${hours}h ${minutes}m)" + fi + fi +} + +measure_endpoint() { + local endpoint=$1 + local method=$2 + local data=$3 + local description=$4 + local needs_auth=${5:-false} + local timeout=${6:-$DEFAULT_TIMEOUT} + + local start=$(date +%s%3N) + if [ "$needs_auth" == "true" ]; then + local response=$(curl -s --max-time $timeout -w "\n%{http_code}" -X "$method" "${endpoint}" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + ${data:+-d "$data"} 2>/dev/null) + else + local response=$(curl -s --max-time $timeout -w "\n%{http_code}" -X "$method" "${endpoint}" \ + -H "Content-Type: application/json" \ + ${data:+-d "$data"} 2>/dev/null) + fi + local end=$(date +%s%3N) + local time=$((end - start)) + local http_code=$(echo "$response" | tail -n1) + local response_body=$(echo "$response" | head -n-1) + + # Validate timing (protect against clock skew) + if [ "$time" -lt 0 ]; then + if [ -z "$http_code" ] || [ "$http_code" == "000" ]; then + http_code="000" + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} $endpoint (NO RESPONSE)" >&2 + time=0 + else + echo -e "${YELLOW}[CLOCK SKEW DETECTED]${NC} $endpoint (HTTP $http_code SUCCESS)" >&2 + time=0 + fi + fi + + # Handle curl failure + if [ -z "$http_code" ]; then + http_code="000" + echo "[WARN] Endpoint $endpoint timed out or connection failed" >&2 + fi + + echo "$time|$http_code|$response_body" +} + +# Helper: Create a test object and track it +create_test_object() { + local data=$1 + local description=${2:-"Creating test object"} + + local response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$data" 2>/dev/null) + + local obj_id=$(echo "$response" | jq -r '.["@id"]' 2>/dev/null) + + if [ -n "$obj_id" ] && [ "$obj_id" != "null" ]; then + CREATED_IDS+=("$obj_id") + sleep 0.5 + fi + + echo "$obj_id" +} + +# Create test object and return the full object (not just ID) +create_test_object_with_body() { + local data=$1 + local description=${2:-"Creating test object"} + + local response=$(curl -s -X POST "${API_BASE}/api/create" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "$data" 2>/dev/null) + + local obj_id=$(echo "$response" | jq -r '.["@id"]' 2>/dev/null) + + if [ -n "$obj_id" ] && [ "$obj_id" != "null" ]; then + CREATED_IDS+=("$obj_id") + sleep 0.5 + echo "$response" + else + echo "" + fi +} + +# Perform write operation with timing +perform_write_operation() { + local endpoint=$1 + local method=$2 + local body=$3 + + local start=$(date +%s%3N) + + local response=$(curl -s -w "\n%{http_code}" -X "$method" "${API_BASE}/api/${endpoint}" \ + -H "Content-Type: application/json" \ + -H "Authorization: Bearer ${AUTH_TOKEN}" \ + -d "${body}" 2>/dev/null) + + local end=$(date +%s%3N) + local http_code=$(echo "$response" | tail -n1) + local time=$((end - start)) + local response_body=$(echo "$response" | head -n-1) + + # Check for success codes first + local success=0 + if [ "$endpoint" = "create" ] && [ "$http_code" = "201" ]; then + success=1 + elif [ "$endpoint" = "delete" ] && [ "$http_code" = "204" ]; then + success=1 + elif [ "$http_code" = "200" ]; then + success=1 + fi + + # Handle timing issues + if [ "$time" -lt 0 ]; then + if [ $success -eq 1 ]; then + echo "0|${http_code}|${response_body}" + else + echo "-1|${http_code}|${response_body}" + fi + elif [ $success -eq 1 ]; then + echo "${time}|${http_code}|${response_body}" + else + echo "-1|${http_code}|${response_body}" + fi +} + +# Run write performance test +run_write_performance_test() { + local endpoint_name=$1 + local endpoint_path=$2 + local method=$3 + local get_body_func=$4 + local num_tests=${5:-100} + + log_info "Running $num_tests $endpoint_name operations..." >&2 + + declare -a times=() + local total_time=0 + local failed_count=0 + local clock_skew_count=0 + + # For create endpoint, collect IDs directly into global array + local collect_ids=0 + [ "$endpoint_name" = "create" ] && collect_ids=1 + + for i in $(seq 1 $num_tests); do + local body=$($get_body_func) + local result=$(perform_write_operation "$endpoint_path" "$method" "$body") + + local time=$(echo "$result" | cut -d'|' -f1) + local http_code=$(echo "$result" | cut -d'|' -f2) + local response_body=$(echo "$result" | cut -d'|' -f3-) + + # Check if operation actually failed + if [ "$time" = "-1" ]; then + failed_count=$((failed_count + 1)) + elif [ "$time" = "0" ]; then + # Clock skew detected (time < 0 was normalized to 0) - operation succeeded but timing is unreliable + clock_skew_count=$((clock_skew_count + 1)) + # Don't add to times array (0ms is not meaningful) or total_time + # Store created ID for cleanup + if [ $collect_ids -eq 1 ] && [ -n "$response_body" ]; then + local obj_id=$(echo "$response_body" | grep -o '"@id":"[^"]*"' | head -1 | cut -d'"' -f4) + if [ -n "$obj_id" ]; then + CREATED_IDS+=("$obj_id") + fi + fi + else + # Normal successful operation with valid timing + times+=($time) + total_time=$((total_time + time)) + # Store created ID for cleanup + if [ $collect_ids -eq 1 ] && [ -n "$response_body" ]; then + local obj_id=$(echo "$response_body" | grep -o '"@id":"[^"]*"' | head -1 | cut -d'"' -f4) + if [ -n "$obj_id" ]; then + CREATED_IDS+=("$obj_id") + fi + fi + fi + + # Progress indicator + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$num_tests operations completed " >&2 + fi + done + echo "" >&2 + + local successful=$((num_tests - failed_count)) + local measurable=$((${#times[@]})) + + if [ $successful -eq 0 ]; then + log_warning "All $endpoint_name operations failed!" >&2 + echo "0|0|0|0|0|$num_tests" + return 1 + fi + + # Calculate statistics + local avg_time=0 + local median_time=0 + local min_time=0 + local max_time=0 + + if [ $measurable -gt 0 ]; then + avg_time=$((total_time / measurable)) + + # Calculate median + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median_idx=$((measurable / 2)) + median_time=${sorted[$median_idx]} + + # Calculate min/max + min_time=${sorted[0]} + max_time=${sorted[$((measurable - 1))]} + fi + + log_success "$successful/$num_tests successful" >&2 + + if [ $measurable -gt 0 ]; then + echo " Total: ${total_time}ms, Average: ${avg_time}ms, Median: ${median_time}ms, Min: ${min_time}ms, Max: ${max_time}ms" >&2 + else + echo " (timing data unavailable - all operations affected by clock skew)" >&2 + fi + + if [ $failed_count -gt 0 ]; then + log_warning "$failed_count operations failed" >&2 + fi + + if [ $clock_skew_count -gt 0 ]; then + log_warning "$clock_skew_count operations affected by clock skew (timing unavailable)" >&2 + fi + + # Write stats to temp file (so they persist when function is called directly, not in subshell) + echo "${avg_time}|${median_time}|${min_time}|${max_time}|${successful}|${num_tests}" > /tmp/rerum_write_stats +} + +################################################################################ +# Read Endpoint Tests +################################################################################ + +test_query_endpoint() { + log_section "Testing /api/query Endpoint" + + ENDPOINT_DESCRIPTIONS["query"]="Query database with filters" + + log_info "Testing query endpoint..." + local result=$(measure_endpoint "${API_BASE}/api/query" "POST" '{"type":"Annotation","limit":10}' "Query for Annotations") + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_TIMES["query"]=$time + ENDPOINT_MEDIANS["query"]=$time + ENDPOINT_MINS["query"]=$time + ENDPOINT_MAXS["query"]=$time + + if [ "$code" == "200" ]; then + if [ "$time" == "0" ]; then + log_success "Query endpoint functional (timing unavailable due to clock skew)" + else + log_success "Query endpoint functional (${time}ms)" + fi + ENDPOINT_STATUS["query"]="✅ Functional" + else + log_failure "Query endpoint failed (HTTP $code)" + ENDPOINT_STATUS["query"]="❌ Failed" + fi +} + +test_search_endpoint() { + log_section "Testing /api/search Endpoint" + + ENDPOINT_DESCRIPTIONS["search"]="Full-text search" + + log_info "Testing search endpoint..." + local result=$(measure_endpoint "${API_BASE}/api/search" "POST" '{"searchText":"annotation"}' "Search for annotation") + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_TIMES["search"]=$time + ENDPOINT_MEDIANS["search"]=$time + ENDPOINT_MINS["search"]=$time + ENDPOINT_MAXS["search"]=$time + + if [ "$code" == "200" ]; then + if [ "$time" == "0" ]; then + log_success "Search endpoint functional (timing unavailable due to clock skew)" + else + log_success "Search endpoint functional (${time}ms)" + fi + ENDPOINT_STATUS["search"]="✅ Functional" + else + log_failure "Search endpoint failed (HTTP $code)" + ENDPOINT_STATUS["search"]="❌ Failed" + fi +} + +test_search_phrase_endpoint() { + log_section "Testing /api/search/phrase Endpoint" + + ENDPOINT_DESCRIPTIONS["searchPhrase"]="Phrase search" + + log_info "Testing search phrase endpoint..." + local result=$(measure_endpoint "${API_BASE}/api/search/phrase" "POST" '{"searchText":"test annotation"}' "Search for phrase") + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_TIMES["searchPhrase"]=$time + ENDPOINT_MEDIANS["searchPhrase"]=$time + ENDPOINT_MINS["searchPhrase"]=$time + ENDPOINT_MAXS["searchPhrase"]=$time + + if [ "$code" == "200" ]; then + if [ "$time" == "0" ]; then + log_success "Search phrase endpoint functional (timing unavailable due to clock skew)" + else + log_success "Search phrase endpoint functional (${time}ms)" + fi + ENDPOINT_STATUS["searchPhrase"]="✅ Functional" + else + log_failure "Search phrase endpoint failed (HTTP $code)" + ENDPOINT_STATUS["searchPhrase"]="❌ Failed" + fi +} + +test_id_endpoint() { + log_section "Testing /id/{id} Endpoint" + + ENDPOINT_DESCRIPTIONS["id"]="Retrieve object by ID" + + # Create a test object first + log_info "Creating test object for ID retrieval..." + local test_id=$(create_test_object '{"type":"IdTest","value":"test"}') + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for ID test" + ENDPOINT_STATUS["id"]="❌ Failed" + return + fi + + log_info "Testing ID endpoint..." + local result=$(measure_endpoint "$test_id" "GET" "" "Get by ID") + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_TIMES["id"]=$time + ENDPOINT_MEDIANS["id"]=$time + ENDPOINT_MINS["id"]=$time + ENDPOINT_MAXS["id"]=$time + + if [ "$code" == "200" ]; then + if [ "$time" == "0" ]; then + log_success "ID endpoint functional (timing unavailable due to clock skew)" + else + log_success "ID endpoint functional (${time}ms)" + fi + ENDPOINT_STATUS["id"]="✅ Functional" + else + log_failure "ID endpoint failed (HTTP $code)" + ENDPOINT_STATUS["id"]="❌ Failed" + fi +} + +setup_history_test_object() { + log_section "Setting Up Object with Version History" + + log_info "Creating initial object for history/since tests..." + local initial_obj=$(create_test_object_with_body '{"type":"HistoryTest","value":"v1","description":"Initial version"}') + local obj_id=$(echo "$initial_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + log_warning "Failed to create object for history/since tests" + return + fi + + log_info "Object created: $obj_id" + + # Perform 3 updates to create version history + log_info "Creating version history with 3 updates..." + local base_obj=$(echo "$initial_obj" | jq 'del(.__rerum)' 2>/dev/null) + + for i in 2 3 4; do + local update_body=$(echo "$base_obj" | jq --arg val "v$i" '.value = $val | .description = "Version '"$i"'"' 2>/dev/null) + local result=$(measure_endpoint "${API_BASE}/api/update" "PUT" "$update_body" "Update v$i" true 10) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "200" ]; then + log_info " Version $i created successfully" + sleep 0.5 + else + log_warning " Failed to create version $i (HTTP $code)" + fi + done + + # Store the original object ID for history/since tests + HISTORY_TEST_ID=$(echo "$obj_id" | sed 's|.*/||') + log_success "Version history created for object: $HISTORY_TEST_ID" +} + +test_history_endpoint() { + log_section "Testing /history/{id} Endpoint" + + ENDPOINT_DESCRIPTIONS["history"]="Get version history" + + # Use the object with version history + if [ -z "$HISTORY_TEST_ID" ]; then + log_skip "No history test object available" + ENDPOINT_STATUS["history"]="⚠️ Skipped" + return + fi + + local test_id="$HISTORY_TEST_ID" + + log_info "Testing history endpoint..." + local result=$(measure_endpoint "${API_BASE}/history/${test_id}" "GET" "" "Get history") + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_TIMES["history"]=$time + ENDPOINT_MEDIANS["history"]=$time + ENDPOINT_MINS["history"]=$time + ENDPOINT_MAXS["history"]=$time + + if [ "$code" == "200" ]; then + if [ "$time" == "0" ]; then + log_success "History endpoint functional (timing unavailable due to clock skew)" + else + log_success "History endpoint functional (${time}ms)" + fi + ENDPOINT_STATUS["history"]="✅ Functional" + else + log_failure "History endpoint failed (HTTP $code)" + ENDPOINT_STATUS["history"]="❌ Failed" + fi +} + +test_since_endpoint() { + log_section "Testing /since/{id} Endpoint" + + ENDPOINT_DESCRIPTIONS["since"]="Get version descendants" + + # Use the object with version history + if [ -z "$HISTORY_TEST_ID" ]; then + log_skip "No history test object available" + ENDPOINT_STATUS["since"]="⚠️ Skipped" + return + fi + + local test_id="$HISTORY_TEST_ID" + + log_info "Testing since endpoint..." + local result=$(measure_endpoint "${API_BASE}/since/${test_id}" "GET" "" "Get since") + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + ENDPOINT_TIMES["since"]=$time + ENDPOINT_MEDIANS["since"]=$time + ENDPOINT_MINS["since"]=$time + ENDPOINT_MAXS["since"]=$time + + if [ "$code" == "200" ]; then + if [ "$time" == "0" ]; then + log_success "Since endpoint functional (timing unavailable due to clock skew)" + else + log_success "Since endpoint functional (${time}ms)" + fi + ENDPOINT_STATUS["since"]="✅ Functional" + else + log_failure "Since endpoint failed (HTTP $code)" + ENDPOINT_STATUS["since"]="❌ Failed" + fi +} + +test_diverse_query_load() { + log_section "Testing High-Volume Diverse Query Load (1000 queries)" + + log_info "Performing 1000 diverse read queries to measure baseline database performance..." + + local start_time=$(date +%s) + + # Use parallel requests for faster execution (match cache-metrics.sh pattern) + local batch_size=100 + local target_size=1000 + local completed=0 + local successful_requests=0 + local failed_requests=0 + + while [ $completed -lt $target_size ]; do + local batch_end=$((completed + batch_size)) + if [ $batch_end -gt $target_size ]; then + batch_end=$target_size + fi + + # Launch batch requests in parallel using background jobs + for count in $(seq $completed $((batch_end - 1))); do + ( + local unique_id="DiverseQuery_${count}_${RANDOM}_$$_$(date +%s%N)" + local endpoint="" + local data="" + local method="POST" + + # Rotate through 6 endpoint patterns (0-5) + local pattern=$((count % 6)) + + if [ $pattern -eq 0 ]; then + # Query endpoint with unique filter + endpoint="${API_BASE}/api/query" + data="{\"type\":\"Annotation\",\"limit\":$((count % 20 + 1))}" + method="POST" + elif [ $pattern -eq 1 ]; then + # Search endpoint with varying search text + endpoint="${API_BASE}/api/search" + data="{\"searchText\":\"annotation${count}\"}" + method="POST" + elif [ $pattern -eq 2 ]; then + # Search phrase endpoint + endpoint="${API_BASE}/api/search/phrase" + data="{\"searchText\":\"test annotation ${count}\"}" + method="POST" + elif [ $pattern -eq 3 ]; then + # ID endpoint - use created objects if available + if [ ${#CREATED_IDS[@]} -gt 0 ]; then + local idx=$((count % ${#CREATED_IDS[@]})) + endpoint="${CREATED_IDS[$idx]}" + method="GET" + data="" + else + # Fallback to query + endpoint="${API_BASE}/api/query" + data="{\"type\":\"$unique_id\"}" + method="POST" + fi + elif [ $pattern -eq 4 ]; then + # History endpoint + if [ -n "$HISTORY_TEST_ID" ]; then + endpoint="${API_BASE}/history/${HISTORY_TEST_ID}" + method="GET" + data="" + else + # Fallback to search + endpoint="${API_BASE}/api/search" + data="{\"searchText\":\"$unique_id\"}" + method="POST" + fi + else + # Since endpoint (pattern 5) + if [ -n "$HISTORY_TEST_ID" ]; then + endpoint="${API_BASE}/since/${HISTORY_TEST_ID}" + method="GET" + data="" + else + # Fallback to search phrase + endpoint="${API_BASE}/api/search/phrase" + data="{\"searchText\":\"$unique_id\"}" + method="POST" + fi + fi + + # Execute request + local http_code="" + if [ "$method" = "GET" ]; then + http_code=$(curl -s -X GET "$endpoint" \ + --max-time 10 \ + --connect-timeout 10 \ + -w '%{http_code}' \ + -o /dev/null 2>&1) + else + http_code=$(curl -s -X POST "$endpoint" \ + -H "Content-Type: application/json" \ + -d "$data" \ + --max-time 10 \ + --connect-timeout 10 \ + -w '%{http_code}' \ + -o /dev/null 2>&1) + fi + + # Write result to temp file for parent process to read + if [ "$http_code" = "200" ]; then + echo "success" >> /tmp/diverse_query_results_$$.tmp + else + echo "fail:http_$http_code" >> /tmp/diverse_query_results_$$.tmp + fi + ) & + done + + # Wait for all background jobs to complete + wait + + # Count results from temp file + local batch_success=0 + local batch_fail=0 + if [ -f /tmp/diverse_query_results_$$.tmp ]; then + batch_success=$(grep -c "^success$" /tmp/diverse_query_results_$$.tmp 2>/dev/null || echo "0") + batch_fail=$(grep -c "^fail:" /tmp/diverse_query_results_$$.tmp 2>/dev/null || echo "0") + rm /tmp/diverse_query_results_$$.tmp + fi + + # Clean up variables + batch_success=$(echo "$batch_success" | tr -d '\n\r' | grep -o '[0-9]*' | head -1) + batch_fail=$(echo "$batch_fail" | tr -d '\n\r' | grep -o '[0-9]*' | head -1) + batch_success=${batch_success:-0} + batch_fail=${batch_fail:-0} + + successful_requests=$((successful_requests + batch_success)) + failed_requests=$((failed_requests + batch_fail)) + + completed=$batch_end + local pct=$((completed * 100 / target_size)) + echo -ne "\r Progress: $completed/$target_size queries (${pct}%) | Success: $successful_requests | Failed: $failed_requests " + + # Small delay between batches to prevent overwhelming the server + sleep 0.5 + done + echo "" + + local end_time=$(date +%s) + local total_time=$((end_time - start_time)) + + # Store in global variables for report + DIVERSE_QUERY_TOTAL_TIME=$((total_time * 1000)) # Convert to ms for consistency + DIVERSE_QUERY_SUCCESS=$successful_requests + DIVERSE_QUERY_FAILED=$failed_requests + + log_info "Request Statistics:" + log_info " Total requests sent: 1000" + log_info " Successful (200 OK): $successful_requests" + log_info " Total Runtime: ${total_time} seconds" + log_info " Failed/Errors: $failed_requests" +} + +################################################################################ +# Write Endpoint Tests +################################################################################ + +test_create_endpoint() { + log_section "Testing /api/create Endpoint" + + ENDPOINT_DESCRIPTIONS["create"]="Create new objects" + + generate_create_body() { + echo "{\"type\":\"CreatePerfTest\",\"timestamp\":$(date +%s%3N),\"random\":$RANDOM}" + } + + log_info "Testing create endpoint ($NUM_CREATE_ITERATIONS operations)..." + + # Call function directly (not in subshell) so CREATED_IDS changes persist + run_write_performance_test "create" "create" "POST" "generate_create_body" $NUM_CREATE_ITERATIONS + + # Read stats from temp file + local stats=$(cat /tmp/rerum_write_stats 2>/dev/null || echo "0|0|0|0|0|0") + local avg=$(echo "$stats" | cut -d'|' -f1) + local median=$(echo "$stats" | cut -d'|' -f2) + local min=$(echo "$stats" | cut -d'|' -f3) + local max=$(echo "$stats" | cut -d'|' -f4) + local success=$(echo "$stats" | cut -d'|' -f5) + local total=$(echo "$stats" | cut -d'|' -f6) + + ENDPOINT_TIMES["create"]=$avg + ENDPOINT_MEDIANS["create"]=$median + ENDPOINT_MINS["create"]=$min + ENDPOINT_MAXS["create"]=$max + ENDPOINT_SUCCESS_COUNTS["create"]=$success + ENDPOINT_TOTAL_COUNTS["create"]=$total + + if [ "$avg" = "0" ]; then + log_failure "Create endpoint failed" + ENDPOINT_STATUS["create"]="❌ Failed" + return + fi + + log_success "Create endpoint functional" + ENDPOINT_STATUS["create"]="✅ Functional" +} + +test_update_endpoint() { + log_section "Testing /api/update Endpoint" + + ENDPOINT_DESCRIPTIONS["update"]="Update existing objects" + + local test_obj=$(create_test_object_with_body '{"type":"UpdateTest","value":"original"}') + local test_id=$(echo "$test_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for update test" + ENDPOINT_STATUS["update"]="❌ Failed" + return + fi + + log_info "Testing update endpoint ($NUM_WRITE_ITERATIONS iterations)..." + + declare -a times=() + local total=0 + local success=0 + local base_object=$(echo "$test_obj" | jq 'del(.__rerum)' 2>/dev/null) + + for i in $(seq 1 $NUM_WRITE_ITERATIONS); do + local update_body=$(echo "$base_object" | jq '.value = "updated_'"$i"'"' 2>/dev/null) + local result=$(measure_endpoint "${API_BASE}/api/update" "PUT" "$update_body" "Update" true $UPDATE_TIMEOUT) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "200" ] && [ "$time" != "0" ]; then + times+=($time) + total=$((total + time)) + success=$((success + 1)) + fi + + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$NUM_WRITE_ITERATIONS iterations " + fi + done + echo "" + + if [ $success -eq 0 ]; then + log_failure "Update endpoint failed" + ENDPOINT_STATUS["update"]="❌ Failed" + return + fi + + # Calculate statistics + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + + ENDPOINT_TIMES["update"]=$avg + ENDPOINT_MEDIANS["update"]=$median + ENDPOINT_MINS["update"]=$min + ENDPOINT_MAXS["update"]=$max + ENDPOINT_SUCCESS_COUNTS["update"]=$success + ENDPOINT_TOTAL_COUNTS["update"]=$NUM_WRITE_ITERATIONS + + if [ $success -lt $NUM_WRITE_ITERATIONS ]; then + log_failure "$success/$NUM_WRITE_ITERATIONS successful (partial failure)" + ENDPOINT_STATUS["update"]="⚠️ Partial Failures" + else + log_success "$success/$NUM_WRITE_ITERATIONS successful" + ENDPOINT_STATUS["update"]="✅ Functional" + fi + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" +} + +test_patch_endpoint() { + log_section "Testing /api/patch Endpoint" + + ENDPOINT_DESCRIPTIONS["patch"]="Patch existing objects" + + local test_obj=$(create_test_object_with_body '{"type":"PatchTest","value":"original"}') + local test_id=$(echo "$test_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for patch test" + ENDPOINT_STATUS["patch"]="❌ Failed" + return + fi + + log_info "Testing patch endpoint ($NUM_WRITE_ITERATIONS iterations)..." + + declare -a times=() + local total=0 + local success=0 + + for i in $(seq 1 $NUM_WRITE_ITERATIONS); do + local patch_body="{\"@id\":\"$test_id\",\"value\":\"patched_$i\"}" + local result=$(measure_endpoint "${API_BASE}/api/patch" "PATCH" "$patch_body" "Patch" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "200" ] && [ "$time" != "0" ]; then + times+=($time) + total=$((total + time)) + success=$((success + 1)) + fi + + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$NUM_WRITE_ITERATIONS iterations " + fi + done + echo "" + + if [ $success -eq 0 ]; then + log_failure "Patch endpoint failed" + ENDPOINT_STATUS["patch"]="❌ Failed" + return + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + + ENDPOINT_TIMES["patch"]=$avg + ENDPOINT_MEDIANS["patch"]=$median + ENDPOINT_MINS["patch"]=$min + ENDPOINT_MAXS["patch"]=$max + ENDPOINT_SUCCESS_COUNTS["patch"]=$success + ENDPOINT_TOTAL_COUNTS["patch"]=$NUM_WRITE_ITERATIONS + + if [ $success -lt $NUM_WRITE_ITERATIONS ]; then + log_failure "$success/$NUM_WRITE_ITERATIONS successful (partial failure)" + ENDPOINT_STATUS["patch"]="⚠️ Partial Failures" + else + log_success "$success/$NUM_WRITE_ITERATIONS successful" + ENDPOINT_STATUS["patch"]="✅ Functional" + fi + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" +} + +test_set_endpoint() { + log_section "Testing /api/set Endpoint" + + ENDPOINT_DESCRIPTIONS["set"]="Add properties to objects" + + local test_id=$(create_test_object '{"type":"SetTest","value":"original"}') + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for set test" + ENDPOINT_STATUS["set"]="❌ Failed" + return + fi + + log_info "Testing set endpoint ($NUM_WRITE_ITERATIONS iterations)..." + + declare -a times=() + local total=0 + local success=0 + + for i in $(seq 1 $NUM_WRITE_ITERATIONS); do + local set_body="{\"@id\":\"$test_id\",\"newProp_$i\":\"value_$i\"}" + local result=$(measure_endpoint "${API_BASE}/api/set" "PATCH" "$set_body" "Set" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "200" ] && [ "$time" != "0" ]; then + times+=($time) + total=$((total + time)) + success=$((success + 1)) + fi + + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$NUM_WRITE_ITERATIONS iterations " + fi + done + echo "" + + if [ $success -eq 0 ]; then + log_failure "Set endpoint failed" + ENDPOINT_STATUS["set"]="❌ Failed" + return + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + + ENDPOINT_TIMES["set"]=$avg + ENDPOINT_MEDIANS["set"]=$median + ENDPOINT_MINS["set"]=$min + ENDPOINT_MAXS["set"]=$max + ENDPOINT_SUCCESS_COUNTS["set"]=$success + ENDPOINT_TOTAL_COUNTS["set"]=$NUM_WRITE_ITERATIONS + + if [ $success -lt $NUM_WRITE_ITERATIONS ]; then + log_failure "$success/$NUM_WRITE_ITERATIONS successful (partial failure)" + ENDPOINT_STATUS["set"]="⚠️ Partial Failures" + else + log_success "$success/$NUM_WRITE_ITERATIONS successful" + ENDPOINT_STATUS["set"]="✅ Functional" + fi + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" +} + +test_unset_endpoint() { + log_section "Testing /api/unset Endpoint" + + ENDPOINT_DESCRIPTIONS["unset"]="Remove properties from objects" + + local test_obj=$(create_test_object_with_body '{"type":"UnsetTest","value":"original","removable":"prop"}') + local test_id=$(echo "$test_obj" | jq -r '.["@id"]' 2>/dev/null) + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for unset test" + ENDPOINT_STATUS["unset"]="❌ Failed" + return + fi + + log_info "Testing unset endpoint ($NUM_WRITE_ITERATIONS iterations)..." + + declare -a times=() + local total=0 + local success=0 + + for i in $(seq 1 $NUM_WRITE_ITERATIONS); do + local unset_body="{\"@id\":\"$test_id\",\"value\":null}" + local result=$(measure_endpoint "${API_BASE}/api/unset" "PATCH" "$unset_body" "Unset" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "200" ] && [ "$time" != "0" ]; then + times+=($time) + total=$((total + time)) + success=$((success + 1)) + fi + + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$NUM_WRITE_ITERATIONS iterations " + fi + done + echo "" + + if [ $success -eq 0 ]; then + log_failure "Unset endpoint failed" + ENDPOINT_STATUS["unset"]="❌ Failed" + return + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + + ENDPOINT_TIMES["unset"]=$avg + ENDPOINT_MEDIANS["unset"]=$median + ENDPOINT_MINS["unset"]=$min + ENDPOINT_MAXS["unset"]=$max + ENDPOINT_SUCCESS_COUNTS["unset"]=$success + ENDPOINT_TOTAL_COUNTS["unset"]=$NUM_WRITE_ITERATIONS + + if [ $success -lt $NUM_WRITE_ITERATIONS ]; then + log_failure "$success/$NUM_WRITE_ITERATIONS successful (partial failure)" + ENDPOINT_STATUS["unset"]="⚠️ Partial Failures" + else + log_success "$success/$NUM_WRITE_ITERATIONS successful" + ENDPOINT_STATUS["unset"]="✅ Functional" + fi + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" +} + +test_overwrite_endpoint() { + log_section "Testing /api/overwrite Endpoint" + + ENDPOINT_DESCRIPTIONS["overwrite"]="Overwrite objects without versioning" + + local test_id=$(create_test_object '{"type":"OverwriteTest","value":"original"}') + + if [ -z "$test_id" ] || [ "$test_id" == "null" ]; then + log_failure "Failed to create test object for overwrite test" + ENDPOINT_STATUS["overwrite"]="❌ Failed" + return + fi + + log_info "Testing overwrite endpoint ($NUM_WRITE_ITERATIONS iterations)..." + + declare -a times=() + local total=0 + local success=0 + + for i in $(seq 1 $NUM_WRITE_ITERATIONS); do + local overwrite_body="{\"@id\":\"$test_id\",\"type\":\"OverwriteTest\",\"value\":\"v$i\"}" + local result=$(measure_endpoint "${API_BASE}/api/overwrite" "PUT" "$overwrite_body" "Overwrite" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "200" ] && [ "$time" != "0" ]; then + times+=($time) + total=$((total + time)) + success=$((success + 1)) + fi + + if [ $((i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $i/$NUM_WRITE_ITERATIONS iterations " + fi + done + echo "" + + if [ $success -eq 0 ]; then + log_failure "Overwrite endpoint failed" + ENDPOINT_STATUS["overwrite"]="❌ Failed" + return + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + + ENDPOINT_TIMES["overwrite"]=$avg + ENDPOINT_MEDIANS["overwrite"]=$median + ENDPOINT_MINS["overwrite"]=$min + ENDPOINT_MAXS["overwrite"]=$max + ENDPOINT_SUCCESS_COUNTS["overwrite"]=$success + ENDPOINT_TOTAL_COUNTS["overwrite"]=$NUM_WRITE_ITERATIONS + + if [ $success -lt $NUM_WRITE_ITERATIONS ]; then + log_failure "$success/$NUM_WRITE_ITERATIONS successful (partial failure)" + ENDPOINT_STATUS["overwrite"]="⚠️ Partial Failures" + else + log_success "$success/$NUM_WRITE_ITERATIONS successful" + ENDPOINT_STATUS["overwrite"]="✅ Functional" + fi + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" +} + +test_release_endpoint() { + log_section "Testing /api/release Endpoint" + + ENDPOINT_DESCRIPTIONS["release"]="Release objects (lock as immutable)" + + local num_created=${#CREATED_IDS[@]} + if [ $num_created -lt $NUM_WRITE_ITERATIONS ]; then + log_warning "Not enough objects (have: $num_created, need: $NUM_WRITE_ITERATIONS)" + ENDPOINT_STATUS["release"]="⚠️ Skipped" + return + fi + + log_info "Testing release endpoint ($NUM_WRITE_ITERATIONS iterations)..." + log_info "Using first $NUM_WRITE_ITERATIONS objects from create test..." + + declare -a times=() + local total=0 + local success=0 + + # Use first 50 objects from CREATED_IDS for release tests (objects 0-49) + for i in $(seq 0 $((NUM_WRITE_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/release/${obj_id}" "PATCH" "" "Release" true) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "200" ] && [ "$time" != "0" ]; then + times+=($time) + total=$((total + time)) + success=$((success + 1)) + fi + + local display_i=$((i + 1)) + if [ $((display_i % 10)) -eq 0 ]; then + echo -ne "\r Progress: $display_i/$NUM_WRITE_ITERATIONS iterations " + fi + done + echo "" + + if [ $success -eq 0 ]; then + log_failure "Release endpoint failed" + ENDPOINT_STATUS["release"]="❌ Failed" + return + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + + ENDPOINT_TIMES["release"]=$avg + ENDPOINT_MEDIANS["release"]=$median + ENDPOINT_MINS["release"]=$min + ENDPOINT_MAXS["release"]=$max + ENDPOINT_SUCCESS_COUNTS["release"]=$success + ENDPOINT_TOTAL_COUNTS["release"]=$NUM_WRITE_ITERATIONS + + if [ $success -lt $NUM_WRITE_ITERATIONS ]; then + log_failure "$success/$NUM_WRITE_ITERATIONS successful (partial failure)" + ENDPOINT_STATUS["release"]="⚠️ Partial Failures" + else + log_success "$success/$NUM_WRITE_ITERATIONS successful" + ENDPOINT_STATUS["release"]="✅ Functional" + fi + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" +} + +test_delete_endpoint() { + log_section "Testing /api/delete Endpoint" + + ENDPOINT_DESCRIPTIONS["delete"]="Delete objects" + + local num_created=${#CREATED_IDS[@]} + if [ $num_created -lt $((NUM_DELETE_ITERATIONS + 50)) ]; then + log_warning "Not enough objects (have: $num_created, need: $((NUM_DELETE_ITERATIONS + 50)))" + ENDPOINT_STATUS["delete"]="⚠️ Skipped" + return + fi + + log_info "Deleting objects 51-100 from create test (released objects cannot be deleted)..." + + declare -a times=() + local total=0 + local success=0 + + # Use second 50 objects from CREATED_IDS for delete tests (objects 50-99) + # First 50 were released and cannot be deleted + for i in $(seq 50 $((50 + NUM_DELETE_ITERATIONS - 1))); do + local obj_id=$(echo "${CREATED_IDS[$i]}" | sed 's|.*/||') + + if [ -z "$obj_id" ] || [ "$obj_id" == "null" ]; then + continue + fi + + local result=$(measure_endpoint "${API_BASE}/api/delete/${obj_id}" "DELETE" "" "Delete" true $DELETE_TIMEOUT) + local time=$(echo "$result" | cut -d'|' -f1) + local code=$(echo "$result" | cut -d'|' -f2) + + if [ "$code" == "204" ] && [ "$time" != "0" ]; then + times+=($time) + total=$((total + time)) + success=$((success + 1)) + fi + + local display_i=$((i + 1)) + if [ $((display_i % 10)) -eq 0 ] || [ $display_i -eq $NUM_DELETE_ITERATIONS ]; then + echo -ne "\r Progress: $display_i/$NUM_DELETE_ITERATIONS iterations " + fi + done + echo "" + + if [ $success -eq 0 ]; then + log_failure "Delete endpoint failed" + ENDPOINT_STATUS["delete"]="❌ Failed" + return + fi + + local avg=$((total / success)) + IFS=$'\n' sorted=($(sort -n <<<"${times[*]}")) + unset IFS + local median=${sorted[$((success / 2))]} + local min=${sorted[0]} + local max=${sorted[$((success - 1))]} + + ENDPOINT_TIMES["delete"]=$avg + ENDPOINT_MEDIANS["delete"]=$median + ENDPOINT_MINS["delete"]=$min + ENDPOINT_MAXS["delete"]=$max + ENDPOINT_SUCCESS_COUNTS["delete"]=$success + ENDPOINT_TOTAL_COUNTS["delete"]=$NUM_DELETE_ITERATIONS + + if [ $success -lt $NUM_DELETE_ITERATIONS ]; then + log_failure "$success/$NUM_DELETE_ITERATIONS successful (partial failure, deleted: $success)" + ENDPOINT_STATUS["delete"]="⚠️ Partial Failures" + else + log_success "$success/$NUM_DELETE_ITERATIONS successful (deleted: $success)" + ENDPOINT_STATUS["delete"]="✅ Functional" + fi + echo " Total: ${total}ms, Average: ${avg}ms, Median: ${median}ms, Min: ${min}ms, Max: ${max}ms" +} + +################################################################################ +# Report Generation +################################################################################ + +generate_report() { + log_header "Generating Report" + + local script_end_time=$(date +%s) + local duration=$((script_end_time - SCRIPT_START_TIME)) + local minutes=$((duration / 60)) + local seconds=$((duration % 60)) + + # Calculate total write operations before heredoc + local total_write_ops=$(( ${ENDPOINT_TOTAL_COUNTS[create]:-0} + ${ENDPOINT_TOTAL_COUNTS[update]:-0} + ${ENDPOINT_TOTAL_COUNTS[patch]:-0} + ${ENDPOINT_TOTAL_COUNTS[set]:-0} + ${ENDPOINT_TOTAL_COUNTS[unset]:-0} + ${ENDPOINT_TOTAL_COUNTS[delete]:-0} + ${ENDPOINT_TOTAL_COUNTS[overwrite]:-0} )) + + cat > "$REPORT_FILE" << EOF +# RERUM Baseline Performance Analysis (No Cache) + +**Generated**: $(date) +**Server**: ${BASE_URL} +**Branch**: main (no cache layer) +**Test Duration**: ${minutes} minutes ${seconds} seconds + +--- + +## Executive Summary + +**Overall Test Results**: ${PASSED_TESTS} passed, ${FAILED_TESTS} failed, ${SKIPPED_TESTS} skipped (${TOTAL_TESTS} total) + +This report establishes baseline performance metrics for the RERUM API without the cache layer. These metrics can be compared against CACHE_METRICS_REPORT.md to evaluate the impact of the caching implementation. + +--- + +## Endpoint Functionality Status + +| Endpoint | Status | Description | +|----------|--------|-------------| +EOF + + # Add endpoint status rows + for endpoint in query search searchPhrase id history since create update patch set unset delete overwrite; do + local status="${ENDPOINT_STATUS[$endpoint]:-⚠️ Not Tested}" + local desc="${ENDPOINT_DESCRIPTIONS[$endpoint]:-}" + echo "| \`/$endpoint\` | $status | $desc |" >> "$REPORT_FILE" + done + + cat >> "$REPORT_FILE" << EOF + +--- + +## Read Performance + +| Endpoint | Avg (ms) | Median (ms) | Min (ms) | Max (ms) | +|----------|----------|-------------|----------|----------| +EOF + + # Add read performance rows + for endpoint in query search searchPhrase id history since; do + local avg="${ENDPOINT_TIMES[$endpoint]:-N/A}" + local median="${ENDPOINT_MEDIANS[$endpoint]:-N/A}" + local min="${ENDPOINT_MINS[$endpoint]:-N/A}" + local max="${ENDPOINT_MAXS[$endpoint]:-N/A}" + echo "| \`/$endpoint\` | ${avg} | ${median} | ${min} | ${max} |" >> "$REPORT_FILE" + done + + cat >> "$REPORT_FILE" << EOF + +**Interpretation**: +- All read operations hit the database directly (no caching) +- Times represent baseline database query performance +- These metrics can be compared with cached read performance to calculate cache speedup + +--- + +## High-Volume Query Load Test + +This test performs 1000 diverse read queries to measure baseline database performance under load. It directly corresponds to the \`fill_cache()\` operation in cache-metrics.sh, enabling direct comparison. + +| Metric | Value | +|--------|-------| +| Total Queries | ${DIVERSE_QUERY_TOTAL} | +| Total Time | $((DIVERSE_QUERY_TOTAL_TIME / 1000)) seconds (${DIVERSE_QUERY_TOTAL_TIME}ms) | +| Average per Query | $((DIVERSE_QUERY_TOTAL_TIME / DIVERSE_QUERY_TOTAL))ms | +| Successful Queries | ${DIVERSE_QUERY_SUCCESS}/${DIVERSE_QUERY_TOTAL} | +| Failed Queries | ${DIVERSE_QUERY_FAILED}/${DIVERSE_QUERY_TOTAL} | + +**Query Distribution**: +- Rotates through 6 endpoint types: /api/query, /api/search, /api/search/phrase, /id/{id}, /history/{id}, /since/{id} +- Each query uses unique parameters to prevent database-level caching + +**Comparison with Cache**: +- Compare this total time with the cache fill operation time in CACHE_METRICS_REPORT.md +- This shows baseline database performance for 1000 diverse queries without caching +- Cache fill time includes both database queries (on cache misses) and cache.set() operations + +--- + +## Write Performance + +| Endpoint | Avg (ms) | Median (ms) | Min (ms) | Max (ms) | Successful/Total | +|----------|----------|-------------|----------|----------|------------------| +EOF + + # Add write performance rows + for endpoint in create update patch set unset delete overwrite; do + local avg="${ENDPOINT_TIMES[$endpoint]:-N/A}" + local median="${ENDPOINT_MEDIANS[$endpoint]:-N/A}" + local min="${ENDPOINT_MINS[$endpoint]:-N/A}" + local max="${ENDPOINT_MAXS[$endpoint]:-N/A}" + local success="${ENDPOINT_SUCCESS_COUNTS[$endpoint]:-0}" + local total="${ENDPOINT_TOTAL_COUNTS[$endpoint]:-0}" + + if [ "$total" != "0" ]; then + echo "| \`/$endpoint\` | ${avg} | ${median} | ${min} | ${max} | ${success}/${total} |" >> "$REPORT_FILE" + else + echo "| \`/$endpoint\` | ${avg} | ${median} | ${min} | ${max} | N/A |" >> "$REPORT_FILE" + fi + done + + cat >> "$REPORT_FILE" << EOF + +**Interpretation**: +- All write operations execute without cache invalidation overhead +- Times represent baseline write performance +- These metrics can be compared with cached write performance to calculate cache overhead + +--- + +## Summary Statistics + +**Total Operations**: +- Read operations: 6 endpoints tested +- Write operations: ${total_write_ops} operations across 7 endpoints + +**Success Rates**: +- Create: ${ENDPOINT_SUCCESS_COUNTS[create]:-0}/${ENDPOINT_TOTAL_COUNTS[create]:-0} +- Update: ${ENDPOINT_SUCCESS_COUNTS[update]:-0}/${ENDPOINT_TOTAL_COUNTS[update]:-0} +- Patch: ${ENDPOINT_SUCCESS_COUNTS[patch]:-0}/${ENDPOINT_TOTAL_COUNTS[patch]:-0} +- Set: ${ENDPOINT_SUCCESS_COUNTS[set]:-0}/${ENDPOINT_TOTAL_COUNTS[set]:-0} +- Unset: ${ENDPOINT_SUCCESS_COUNTS[unset]:-0}/${ENDPOINT_TOTAL_COUNTS[unset]:-0} +- Delete: ${ENDPOINT_SUCCESS_COUNTS[delete]:-0}/${ENDPOINT_TOTAL_COUNTS[delete]:-0} +- Overwrite: ${ENDPOINT_SUCCESS_COUNTS[overwrite]:-0}/${ENDPOINT_TOTAL_COUNTS[overwrite]:-0} + +**Test Execution**: +- Total duration: ${minutes} minutes ${seconds} seconds +- Test objects created: ${#CREATED_IDS[@]} +- Server: ${BASE_URL} + +--- + +## Comparison Guide + +To compare with cache performance (CACHE_METRICS_REPORT.md): + +1. **Read Speedup**: Calculate cache benefit + \`\`\` + Speedup = Baseline Read Time - Cached Read Time + Speedup % = (Speedup / Baseline Read Time) × 100 + \`\`\` + +2. **Write Overhead**: Calculate cache cost + \`\`\` + Overhead = Cached Write Time - Baseline Write Time + Overhead % = (Overhead / Baseline Write Time) × 100 + \`\`\` + +3. **Net Benefit**: Evaluate overall impact based on your read/write ratio + +--- + +## Notes + +- This test was run against the **main branch** without the cache layer +- All timing measurements are in milliseconds +- Clock skew was handled gracefully (operations with negative timing marked as 0ms) +- Test objects should be manually cleaned from MongoDB using the commands provided at test start + +--- + +**Report Generated**: $(date) +**Format Version**: 1.0 +**Test Suite**: rerum-metrics.sh +EOF + + echo -e "${CYAN}Report location: ${REPORT_FILE}${NC}" +} + +################################################################################ +# Main Execution +################################################################################ + +main() { + log_header "RERUM Baseline Performance Metrics Test" + + echo -e "${BLUE}Testing RERUM API without cache layer (main branch)${NC}" + echo -e "${BLUE}Server: ${BASE_URL}${NC}" + echo "" + + # Phase 1: Pre-flight & Authentication + log_header "Phase 1: Pre-flight & Authentication" + check_wsl2_time_sync + check_server + get_auth_token + warmup_system + + # Phase 2: Read Endpoint Tests + log_header "Phase 2: Read Endpoint Tests" + test_query_endpoint + test_search_endpoint + test_search_phrase_endpoint + test_id_endpoint + + # Setup object with version history for history/since tests + setup_history_test_object + + test_history_endpoint + test_since_endpoint + + # High-volume query load test (last action of Phase 2) + test_diverse_query_load + + # Phase 3: Write Endpoint Tests + log_header "Phase 3: Write Endpoint Tests" + test_create_endpoint + test_update_endpoint + test_patch_endpoint + test_set_endpoint + test_unset_endpoint + test_overwrite_endpoint + test_release_endpoint + test_delete_endpoint + + # Phase 4: Generate Report + generate_report + + # Final Summary + log_header "Test Complete" + echo -e "${GREEN}✓ ${PASSED_TESTS} tests passed${NC}" + if [ $FAILED_TESTS -gt 0 ]; then + echo -e "${RED}✗ ${FAILED_TESTS} tests failed${NC}" + fi + if [ $SKIPPED_TESTS -gt 0 ]; then + echo -e "${YELLOW}⊘ ${SKIPPED_TESTS} tests skipped${NC}" + fi + echo "" + echo -e "${CYAN}Report saved to: ${REPORT_FILE}${NC}" + echo -e "${CYAN}Terminal log saved to: ${LOG_FILE}${NC}" + echo "" + echo -e "${YELLOW}Remember to clean up test objects from MongoDB!${NC}" + echo "" +} + +# Run main function and capture output to log file (strip ANSI colors from log) +main 2>&1 | tee >(sed 's/\x1b\[[0-9;]*m//g' > "$LOG_FILE") diff --git a/cache/docs/ARCHITECTURE.md b/cache/docs/ARCHITECTURE.md new file mode 100644 index 00000000..8f34199c --- /dev/null +++ b/cache/docs/ARCHITECTURE.md @@ -0,0 +1,434 @@ +# RERUM API Caching Architecture + +## System Overview + +``` +┌─────────────────────────────────────────────────────────────────┐ +│ Client Applications │ +│ (Web Apps, Desktop Apps, Mobile Apps using RERUM API) │ +└────────────────────────────┬────────────────────────────────────┘ + │ + ▼ +┌─────────────────────────────────────────────────────────────────┐ +│ RERUM API Server (Node.js/Express) │ +│ │ +│ ┌─────────────────────────────────────────────────────────┐ │ +│ │ Route Layer │ │ +│ │ /query /search /id /history /since /gog/* │ │ +│ │ /create /update /delete /patch /release │ │ +│ └────────────────┬────────────────────────────────────────┘ │ +│ │ │ +│ ▼ │ +│ ┌─────────────────────────────────────────────────────────┐ │ +│ │ Cache Middleware Layer │ │ +│ │ │ │ +│ │ Read Ops: Write Ops: │ │ +│ │ • cacheQuery • invalidateCache (smart) │ │ +│ │ • cacheSearch • Intercepts response │ │ +│ │ • cacheSearchPhrase • Extracts object properties │ │ +│ │ • cacheId • Invalidates matching queries │ │ +│ │ • cacheHistory • Handles version chains │ │ +│ │ • cacheSince │ │ +│ │ • cacheGogFragments │ │ +│ │ • cacheGogGlosses │ │ +│ └────────────┬─────────────────────┬────────────────────────┘ │ +│ │ │ │ +│ ┌─────────▼─────────┐ │ │ +│ │ PM2 Cluster Cache│ │ │ +│ │ (In-Memory) │ │ │ +│ │ │ │ │ +│ │ Max: 1000 items │ │ │ +│ │ Max: 1GB monitor │ │ │ +│ │ TTL: 5 minutes │ │ │ +│ │ Mode: 'all' │ │ │ +│ │ (full replicate) │ │ │ +│ │ │ │ │ +│ │ Cache Keys: │ │ │ +│ │ • id:{id} │ │ │ +│ │ • query:{json} │ │ │ +│ │ • search:{json} │ │ │ +│ │ • searchPhrase │ │ │ +│ │ • history:{id} │ │ │ +│ │ • since:{id} │ │ │ +│ │ • gogFragments │ │ │ +│ │ • gogGlosses │ │ │ +│ └───────────────────┘ │ │ +│ │ │ +│ ┌────────────────▼──────────────────┐ │ +│ │ Controller Layer │ │ +│ │ (Business Logic + CRUD) │ │ +│ └────────────────┬──────────────────┘ │ +└────────────────────────────────────┼────────────────────────────┘ + │ + ▼ + ┌──────────────────────────────────┐ + │ MongoDB Atlas 8.2.1 │ + │ (JSON Database) │ + │ │ + │ Collections: │ + │ • RERUM Objects (versioned) │ + │ • Annotations │ + │ • GOG Data │ + └──────────────────────────────────┘ +``` + +## Request Flow Diagrams + +### Cache HIT Flow (Fast Path) + +``` +Client Request + │ + ▼ +┌────────────────┐ +│ Route Handler │ +└───────┬────────┘ + │ + ▼ +┌────────────────────┐ +│ Cache Middleware │ +│ • Check cache key │ +└────────┬───────────┘ + │ + ▼ + ┌────────┐ + │ Cache? │ YES ──────────┐ + └────────┘ │ + ▼ + ┌────────────────┐ + │ Return Cached │ + │ X-Cache: HIT │ + │ ~1-5ms │ + └────────┬───────┘ + │ + ▼ + Client Response +``` + +### Cache MISS Flow (Database Query) + +``` +Client Request + │ + ▼ +┌────────────────┐ +│ Route Handler │ +└───────┬────────┘ + │ + ▼ +┌────────────────────┐ +│ Cache Middleware │ +│ • Check cache key │ +└────────┬───────────┘ + │ + ▼ + ┌────────┐ + │ Cache? │ NO + └────┬───┘ + │ + ▼ +┌────────────────────┐ +│ Controller │ +│ • Query MongoDB │ +└────────┬───────────┘ + │ + ▼ +┌────────────────────┐ +│ MongoDB Atlas │ +│ • Execute query │ +│ • Return results │ +└────────┬───────────┘ + │ + ▼ +┌────────────────────┐ +│ Cache Middleware │ +│ • Store in cache │ +│ • Set TTL timer │ +└────────┬───────────┘ + │ + ▼ +┌────────────────────┐ +│ Return Response │ +│ X-Cache: MISS │ +│ ~50-500ms │ +└────────┬───────────┘ + │ + ▼ + Client Response +``` + +### Write Operation with Smart Cache Invalidation + +``` +Client Write Request (CREATE/UPDATE/DELETE) + │ + ▼ +┌────────────────────┐ +│ Auth Middleware │ +│ • Verify JWT token │ +└────────┬───────────┘ + │ + ▼ +┌────────────────────────┐ +│ Invalidate Middleware │ +│ • Intercept res.json() │ +│ • Setup response hook │ +└────────┬───────────────┘ + │ + ▼ +┌────────────────────┐ +│ Controller │ +│ • Validate input │ +│ • Perform write │ +│ • Return object │ +└────────┬───────────┘ + │ + ▼ +┌────────────────────┐ +│ MongoDB Atlas │ +│ • Execute write │ +│ • Version objects │ +│ • Return result │ +└────────┬───────────┘ + │ + ▼ +┌────────────────────────────┐ +│ Response Intercepted │ +│ • Extract object properties│ +│ • Determine operation type │ +│ • Build invalidation list │ +└────────┬───────────────────┘ + │ + ▼ + ┌─────────────────────────────┐ + │ Smart Cache Invalidation │ + │ │ + │ CREATE: │ + │ ├─ Match object properties │ + │ ├─ Invalidate queries │ + │ └─ Invalidate searches │ + │ │ + │ UPDATE: │ + │ ├─ Invalidate object ID │ + │ ├─ Match object properties │ + │ ├─ Extract version chain │ + │ ├─ Invalidate history/* │ + │ └─ Invalidate since/* │ + │ │ + │ DELETE: │ + │ ├─ Use res.locals object │ + │ ├─ Invalidate object ID │ + │ ├─ Match object properties │ + │ ├─ Extract version chain │ + │ ├─ Invalidate history/* │ + │ └─ Invalidate since/* │ + └─────────┬───────────────────┘ + │ + ▼ + ┌──────────────────┐ + │ Send Response │ + │ • Original data │ + │ • 200/201/204 │ + └──────┬───────────┘ + │ + ▼ + Client Response +``` + +## PM2 Cluster Cache Internal Structure + +``` +┌───────────────────────────────────────────────────────────┐ +│ PM2 Cluster Cache (per Worker) │ +│ Storage Mode: 'all' (Full Replication) │ +│ │ +│ ┌──────────────────────────────────────────────────┐ │ +│ │ JavaScript Map (Built-in Data Structure) │ │ +│ │ │ │ +│ │ Key-Value Pairs (Synchronized across workers) │ │ +│ │ ↓ │ │ +│ │ ┌──────────────────────────────────────────┐ │ │ +│ │ │ "id:507f1f77..." → {value, metadata} │ │ │ +│ │ │ "query:{...}" → {value, metadata} │ │ │ +│ │ │ "search:manuscript" → {value, metadata} │ │ │ +│ │ │ "history:507f1f77..." → {value, metadata}│ │ │ +│ │ │ "since:507f1f77..." → {value, metadata}│ │ │ +│ │ └──────────────────────────────────────────┘ │ │ +│ │ │ │ +│ │ Metadata per Entry: │ │ +│ │ • value: Cached response data │ │ +│ │ • timestamp: Creation time │ │ +│ │ • ttl: Expiration time │ │ +│ └──────────────────────────────────────────────────┘ │ +│ │ +│ ┌──────────────────────────────────────────────────┐ │ +│ │ Eviction Strategy (Automatic) │ │ +│ │ │ │ +│ │ • maxLength: 1000 entries (enforced) │ │ +│ │ • When exceeded: Oldest entry removed │ │ +│ │ • TTL: Expired entries auto-removed │ │ +│ │ • Synchronized across all workers │ │ +│ └──────────────────────────────────────────────────┘ │ +│ │ +│ ┌──────────────────────────────────────────────────┐ │ +│ │ Statistics (Per Worker) │ │ +│ │ Aggregated every 5s across workers │ │ +│ │ │ │ +│ │ • hits: 1234 • length: 850/1000 │ │ +│ │ • misses: 567 • bytes: 22.1MB (monitor) │ │ +│ │ • evictions: 89 • hitRate: 68.51% │ │ +│ │ • sets: 1801 • ttl: 86400000ms │ │ +│ └──────────────────────────────────────────────────┘ │ +└───────────────────────────────────────────────────────────┘ +``` + +## Cache Key Patterns + +``` +┌─────────────────────────────────────────────────────────────────────────────────────┐ +│ Cache Key Structure │ +├─────────────────────────────────────────────────────────────────────────────────────┤ +│ │ +│ Type │ Pattern │ Example │ +│────────────────┼────────────────────────────────┼───────────────────────────────────│ +│ ID │ id:{object_id} │ id:507f1f77bcf86cd799439 │ +│ Query │ query:{sorted_json} │ query:{"limit":"100",...} │ +│ Search │ search:{json} │ search:"manuscript" │ +│ Phrase │ searchPhrase:{json} │ searchPhrase:"medieval" │ +│ History │ history:{id} │ history:507f1f77bcf86cd │ +│ Since │ since:{id} │ since:507f1f77bcf86cd799 │ +│ GOG Fragments │ gog-fragments:{id}:limit:skip │ gog-fragments:507f:limit=10:... │ +│ GOG Glosses │ gog-glosses:{id}:limit:skip │ gog-glosses:507f:limit=10:... │ +│ │ +│ Note: All keys use consistent JSON.stringify() serialization │ +└─────────────────────────────────────────────────────────────────────────────────────┘ +``` + +## Performance Metrics + +``` +┌──────────────────────────────────────────────────────────────┐ +│ Expected Performance │ +├──────────────────────────────────────────────────────────────┤ +│ │ +│ Metric │ Without Cache │ With Cache (HIT) │ +│──────────────────────┼─────────────────┼─────────────────────│ +│ ID Lookup │ 50-200ms │ 1-5ms │ +│ Query │ 300-800ms │ 1-5ms │ +│ Search │ 200-800ms │ 2-10ms │ +│ History │ 150-600ms │ 1-5ms │ +│ Since │ 200-700ms │ 1-5ms │ +│ | +│ Expected Hit Rate: 60-80% for read-heavy workloads │ +│ Speed Improvement: 60-800x for cached requests │ +│ Memory Usage: ~26MB (1000 typical entries) │ +│ Database Load: Reduced by hit rate percentage │ +└──────────────────────────────────────────────────────────────┘ +``` + +## Limit Enforcement + +The cache enforces both entry count and memory size limits: + +``` +┌──────────────────────────────────────────────────────────────┐ +│ Cache Limits (Dual) │ +├──────────────────────────────────────────────────────────────┤ +│ │ +│ Limit Type │ Default │ Purpose │ +│─────────────────┼─────────────┼──────────────────────────────│ +│ Length (count) │ 1000 │ Ensures cache diversity │ +│ │ │ Prevents cache thrashing │ +│ │ │ PRIMARY working limit │ +│ │ │ +│ Bytes (size) │ 1GB │ Prevents memory exhaustion │ +│ │ │ Safety net for edge cases │ +│ │ │ Guards against huge objects │ +│ │ +│ Balance: With typical RERUM queries (100 items/page), │ +│ 1000 entries = ~26 MB (2.7% of 1GB limit) │ +│ │ +│ Typical entry sizes: │ +│ • ID lookup: ~183 bytes │ +│ • Query (10 items): ~2.7 KB │ +│ • Query (100 items): ~27 KB │ +│ • GOG (50 items): ~13.5 KB │ +│ │ +│ The length limit (1000) will be reached first in normal │ +│ operation. The byte limit provides protection against │ +│ accidentally caching very large result sets. │ +│ │ +│ Eviction: When maxLength (1000) is exceeded, PM2 Cluster │ +│ Cache automatically removes oldest entries across │ +│ all workers until limit is satisfied │ +└──────────────────────────────────────────────────────────────┘ +``` + +## Invalidation Patterns + +``` +┌──────────────────────────────────────────────────────────────────┐ +│ Smart Cache Invalidation Matrix │ +├──────────────────────────────────────────────────────────────────┤ +│ │ +│ Operation │ Invalidates │ +│─────────────┼────────────────────────────────────────────────────│ +│ CREATE │ • Queries matching new object properties │ +│ │ • Searches matching new object content │ +│ │ • Preserves unrelated caches │ +│ │ │ +│ UPDATE │ • Specific object ID cache │ +│ PATCH │ • Queries matching updated properties │ +│ │ • Searches matching updated content │ +│ │ • History for: new ID + previous ID + prime ID │ +│ │ • Since for: new ID + previous ID + prime ID │ +│ │ • Preserves unrelated caches │ +│ │ │ +│ DELETE │ • Specific object ID cache │ +│ │ • Queries matching deleted object (pre-deletion) │ +│ │ • Searches matching deleted object │ +│ │ • History for: deleted ID + previous ID + prime │ +│ │ • Since for: deleted ID + previous ID + prime │ +│ │ • Uses res.locals.deletedObject for properties │ +│ │ │ +│ RELEASE │ • Specific object ID cache │ +│ │ • Queries matching object properties │ +│ │ • Searches matching object content │ +│ │ • History for: released ID + previous ID + prime │ +│ │ • Since for: released ID + previous ID + prime │ +│ │ • Similar to OVERWRITE (modifies in-place) │ +│ │ │ +│ Note: Version chain invalidation ensures history/since queries │ +│ for root objects are updated when descendants change │ +└──────────────────────────────────────────────────────────────────┘ +``` + +## Configuration and Tuning + +``` +┌──────────────────────────────────────────────────────────────────────┐ +│ Environment-Specific Settings │ +├──────────────────────────────────────────────────────────────────────┤ +│ │ +│ Environment │ MAX_LENGTH │ MAX_BYTES │ TTL │ +│───────────────┼────────────┼───────────┼─────────────────────────────│ +│ Development │ 500 │ 500MB │ 300000 (5 min) │ +│ Staging │ 1000 │ 1GB │ 300000 (5 min) │ +│ Production │ 1000 │ 1GB │ 600000 (10 min) │ +│ High Traffic │ 2000 │ 2GB │ 300000 (5 min) │ +│ │ +│ Recommendation: Keep defaults (1000 entries, 1GB) unless: │ +│ • Abundant memory available → Increase MAX_BYTES for safety │ +│ • Low cache hit rate → Increase MAX_LENGTH for diversity │ +│ • Memory constrained → Decrease both limits proportionally │ +└──────────────────────────────────────────────────────────────────────┘ +``` + +--- + +**Legend:** +- `┌─┐` = Container boundaries +- `│` = Vertical flow/connection +- `▼` = Process direction +- `→` = Data flow +- `←→` = Bidirectional link diff --git a/cache/docs/DETAILED.md b/cache/docs/DETAILED.md new file mode 100644 index 00000000..0b25971a --- /dev/null +++ b/cache/docs/DETAILED.md @@ -0,0 +1,692 @@ +# RERUM API Cache Layer - Technical Details + +## Overview + +The RERUM API implements a **PM2 Cluster Cache** with smart invalidation for all read endpoints. The cache uses `pm2-cluster-cache` to synchronize cached data across all worker instances in PM2 cluster mode, ensuring consistent cache hits regardless of which worker handles the request. + +## Prerequisites + +### Required System Tools + +The cache test scripts require the following command-line tools: + +#### Essential Tools (must install) +- **`jq`** - JSON parser for extracting fields from API responses +- **`bc`** - Calculator for arithmetic operations in metrics +- **`curl`** - HTTP client for API requests + +**Quick Install (Ubuntu/Debian):** +```bash +sudo apt update && sudo apt install -y jq bc curl +``` + +**Quick Install (macOS with Homebrew):** +```bash +brew install jq bc curl +``` + +#### Standard Unix Tools (usually pre-installed) +- `date` - Timestamp operations +- `sed` - Text manipulation +- `awk` - Text processing +- `grep` - Pattern matching +- `cut` - Text field extraction +- `sort` - Sorting operations +- `head` / `tail` - Line operations + +These are typically pre-installed on Linux/macOS systems. If missing, install via your package manager. + +## Key Runtime Insights + +### Performance Implications +Write-heavy workloads may experience O(n) invalidation overhead, but deferred execution prevents blocking. Read-heavy workloads benefit from O(1) lookups regardless of cache size. + +### Big-O Analysis +- **O(1) hash lookups for reads** (cache size irrelevant) + - Direct Map.get() operations for cache hits + - No performance degradation as cache grows to 1000 entries +- **O(n) scanning for write invalidations** (scales with cache size) + - Smart invalidation scans all cache keys to find matches + - Worst case: 1000 entries scanned per write operation + - Deferred to background (non-blocking) but still affects throughput +- **O(n) LRU eviction** + - Scans all keys to find least recently used entry + - Triggered when cache exceeds maxLength or maxBytes + - Deferred via setImmediate() to avoid blocking cache.set() +- **O(k log k) cache key generation for complex queries** + - Sorts object properties alphabetically for consistent keys + - k = number of query properties (typically 5-10) + - Negligible overhead in practice +- **O(p) object property matching during invalidation** + - p = depth/complexity of MongoDB query operators + - Supports nested properties, $or/$and, comparison operators + - Most queries are shallow (p < 5) +- **O(w) stats aggregation across workers** + - w = number of PM2 workers (typically 4) + - Synced every 5 seconds in background + - Minimal overhead + +## Cache Configuration + +### Default Settings +- **Enabled by default**: Set `CACHING=false` to disable +- **Max Length**: 1000 entries (cluster-wide limit, configurable) +- **Max Bytes**: 1GB (cluster-wide limit, configurable; replicated to all workers) +- **TTL (Time-To-Live)**: 24 hours default (86,400,000ms) +- **Storage Mode**: PM2 Cluster Cache with 'all' replication mode (full cache copy on each worker, synchronized automatically) +- **Stats Tracking**: Atomic counters for sets/evictions (race-condition free), local counters for hits/misses (synced every 5 seconds) +- **Eviction**: LRU (Least Recently Used) eviction implemented with deferred background execution via setImmediate() to avoid blocking cache.set() operations + +### Environment Variables +```bash +CACHING=true # Enable/disable caching layer (true/false) +CACHE_MAX_LENGTH=1000 # Maximum number of cached entries +CACHE_MAX_BYTES=1000000000 # Maximum cache size in bytes (replicated to all workers; 4 workers = ~4GB total RAM) +CACHE_TTL=86400000 # Time-to-live in milliseconds (default: 86400000 = 24 hours) +``` + +### Enabling/Disabling Cache + +**To disable caching completely**, set `CACHING=false` in your `.env` file: +- All cache middleware will be bypassed +- No cache lookups, storage, or invalidation +- No `X-Cache` headers in responses +- No overhead from cache operations +- Useful for debugging or performance comparison + +**To enable caching** (default), set `CACHING=true` or leave it unset. + +### Limit Enforcement Details + +The cache implements **dual limits** for defense-in-depth: + +1. **Length Limit (1000 entries)** + - Primary working limit + - Ensures diverse cache coverage + - Prevents cache thrashing from too many unique queries + - Reached first under normal operation + - LRU eviction triggered when exceeded (evicts least recently accessed entry) + - Eviction deferred to background via setImmediate() to avoid blocking cache.set() + +2. **Byte Limit (1GB)** + - Secondary safety limit + - Prevents memory exhaustion + - Protects against accidentally large result sets + - Guards against malicious queries + - LRU eviction triggered when exceeded + - Eviction runs in background to avoid blocking operations + +**Balance Analysis**: With typical RERUM queries (100 items per page at ~269 bytes per annotation): +- 1000 entries = ~26 MB (2.7% of 1GB limit) +- Length limit reached first in 99%+ of scenarios +- Byte limit only relevant for monitoring and capacity planning + +**Eviction Behavior**: +- **LRU (Least Recently Used)** eviction strategy implemented in cache/index.js +- Eviction triggered when maxLength (1000) or maxBytes (1GB) exceeded +- Eviction deferred to background using setImmediate() to avoid blocking cache.set() +- Synchronized across all workers via PM2 cluster-cache +- Tracks access times via keyAccessTimes Map for LRU determination + +**Byte Size Calculation** (for monitoring only): +```javascript +// Used for stats reporting, not enforced by pm2-cluster-cache +calculateByteSize() { + let totalBytes = 0 + for (const [key, value] of this.cache.entries()) { + totalBytes += Buffer.byteLength(key, 'utf8') + totalBytes += Buffer.byteLength(JSON.stringify(value), 'utf8') + } + return totalBytes +} +``` + +This provides visibility into memory usage across workers. + +## Cached Endpoints + +### 1. Query Endpoint (`POST /v1/api/query`) +**Middleware**: `cacheQuery` + +**Cache Key Format**: `query:{JSON}` +- Includes request body (query filters) +- Includes pagination parameters (limit, skip) + +**Example**: +``` +Request: POST /v1/api/query +Body: { "type": "Annotation", "creator": "user123" } +Query: ?limit=100&skip=0 + +Cache Key: query:{"body":{"type":"Annotation","creator":"user123"},"limit":"100","skip":"0"} +``` + +**Invalidation**: When CREATE, UPDATE, PATCH, or DELETE operations affect objects matching the query filters. + +--- + +### 2. Search Endpoint (`POST /v1/api/search`) +**Middleware**: `cacheSearch` + +**Cache Key Format**: `search:{JSON}` +- Serializes search text or search object + +**Example**: +``` +Request: POST /v1/api/search +Body: "manuscript" + +Cache Key: search:"manuscript" +``` + +**Invalidation**: When CREATE, UPDATE, PATCH, or DELETE operations modify objects containing the search terms. + +--- + +### 3. Search Phrase Endpoint (`POST /v1/api/search/phrase`) +**Middleware**: `cacheSearchPhrase` + +**Cache Key Format**: `searchPhrase:{JSON}` +- Serializes exact phrase to search + +**Example**: +``` +Request: POST /v1/api/search/phrase +Body: "medieval manuscript" + +Cache Key: searchPhrase:"medieval manuscript" +``` + +**Invalidation**: When CREATE, UPDATE, PATCH, or DELETE operations modify objects containing the phrase. + +--- + +### 4. ID Lookup Endpoint (`GET /v1/id/{id}`) +**Middleware**: `cacheId` + +**Cache Key Format**: `id:{id}` +- Direct object ID lookup + +**Example**: +``` +Request: GET /v1/id/507f1f77bcf86cd799439011 + +Cache Key: id:507f1f77bcf86cd799439011 +``` + +**Special Headers**: +- `Cache-Control: max-age=86400, must-revalidate` (24 hours) +- `X-Cache: HIT` or `X-Cache: MISS` + +**Invalidation**: When UPDATE, PATCH, or DELETE operations affect this specific object. + +--- + +### 5. History Endpoint (`GET /v1/history/{id}`) +**Middleware**: `cacheHistory` + +**Cache Key Format**: `history:{id}` +- Returns version history for an object + +**Example**: +``` +Request: GET /v1/history/507f1f77bcf86cd799439011 + +Cache Key: history:507f1f77bcf86cd799439011 +``` + +**Invalidation**: When UPDATE operations create new versions in the object's version chain. Invalidates cache for: +- The new version ID +- The previous version ID (`__rerum.history.previous`) +- The root version ID (`__rerum.history.prime`) + +**Note**: DELETE operations invalidate all history caches in the version chain. + +--- + +### 6. Since Endpoint (`GET /v1/since/{id}`) +**Middleware**: `cacheSince` + +**Cache Key Format**: `since:{id}` +- Returns all descendant versions since a given object + +**Example**: +``` +Request: GET /v1/since/507f1f77bcf86cd799439011 + +Cache Key: since:507f1f77bcf86cd799439011 +``` + +**Invalidation**: When UPDATE operations create new descendants. Invalidates cache for: +- The new version ID +- All predecessor IDs in the version chain +- The root/prime ID + +**Critical for RERUM Versioning**: Since queries use the root object ID, but updates create new object IDs, the invalidation logic extracts and invalidates all IDs in the version chain. + +--- + +### 7. GOG Fragments Endpoint (`POST /v1/api/_gog/fragments_from_manuscript`) +**Middleware**: `cacheGogFragments` + +**Cache Key Format**: `gogFragments:{manuscriptURI}:{limit}:{skip}` + +**Validation**: Requires valid `ManuscriptWitness` URI in request body + +**Example**: +``` +Request: POST /v1/api/_gog/fragments_from_manuscript +Body: { "ManuscriptWitness": "https://example.org/manuscript/123" } +Query: ?limit=50&skip=0 + +Cache Key: gogFragments:https://example.org/manuscript/123:50:0 +``` + +**Invalidation**: When CREATE, UPDATE, or DELETE operations affect fragments for this manuscript. + +--- + +### 8. GOG Glosses Endpoint (`POST /v1/api/_gog/glosses_from_manuscript`) +**Middleware**: `cacheGogGlosses` + +**Cache Key Format**: `gogGlosses:{manuscriptURI}:{limit}:{skip}` + +**Validation**: Requires valid `ManuscriptWitness` URI in request body + +**Example**: +``` +Request: POST /v1/api/_gog/glosses_from_manuscript +Body: { "ManuscriptWitness": "https://example.org/manuscript/123" } +Query: ?limit=50&skip=0 + +Cache Key: gogGlosses:https://example.org/manuscript/123:50:0 +``` + +**Invalidation**: When CREATE, UPDATE, or DELETE operations affect glosses for this manuscript. + +--- + +## Cache Management Endpoints + +### Cache Statistics (`GET /v1/api/cache/stats`) +**Handler**: `cacheStats` + +**Stats Tracking**: +- **Atomic counters** (sets, evictions): Updated immediately in cluster cache to prevent race conditions +- **Local counters** (hits, misses): Tracked locally per worker, synced to cluster cache every 5 seconds for performance +- **Aggregation**: Stats endpoint aggregates from all workers, accurate within 5 seconds for hits/misses + +Returns cache performance metrics: +```json +{ + "hits": 1234, + "misses": 456, + "hitRate": "73.02%", + "evictions": 12, + "sets": 1801, + "length": 234, + "bytes": 2457600, + "lifespan": "5 minutes 32 seconds", + "maxLength": 1000, + "maxBytes": 1000000000, + "ttl": 86400000 +} +``` + +**With Details** (`?details=true`): +```json +{ + "hits": 1234, + "misses": 456, + "hitRate": "73.02%", + "evictions": 12, + "sets": 1801, + "length": 234, + "bytes": 2457600, + "lifespan": "5 minutes 32 seconds", + "maxLength": 1000, + "maxBytes": 1000000000, + "ttl": 86400000, + "details": [ + { + "position": 0, + "key": "id:507f1f77bcf86cd799439011", + "age": "2 minutes 15 seconds", + "hits": 45, + "length": 183, + "bytes": 183 + }, + { + "position": 1, + "key": "query:{\"type\":\"Annotation\"}", + "age": "5 minutes 2 seconds", + "hits": 12, + "length": 27000, + "bytes": 27000 + } + ] +} +``` +--- + +## Smart Invalidation + +### How It Works + +When write operations occur, the cache middleware intercepts the response and invalidates relevant cache entries based on the object properties. + +**MongoDB Operator Support**: The smart invalidation system supports complex MongoDB query operators, including: +- **`$or`** - Matches if ANY condition is satisfied (e.g., queries checking multiple target variations) +- **`$and`** - Matches if ALL conditions are satisfied +- **`$exists`** - Field existence checking +- **`$size`** - Array size matching (e.g., `{"__rerum.history.next": {"$exists": true, "$size": 0}}` for leaf objects) +- **Comparison operators** - `$ne`, `$gt`, `$gte`, `$lt`, `$lte` +- **`$in`** - Value in array matching +- **Nested properties** - Dot notation like `target.@id`, `body.title.value` + +**Protected Properties**: The system intelligently skips `__rerum` and `_id` fields during cache matching, as these are server-managed properties not present in user request bodies. This includes: +- Top-level: `__rerum`, `_id` +- Nested paths: `__rerum.history.next`, `target.id`, etc. +- Any position: starts with, contains, or ends with these protected property names + +This conservative approach ensures cache invalidation is based only on user-controllable properties, preventing false negatives while maintaining correctness. + +**Example with MongoDB Operators**: +```javascript +// Complex query with $or operator (common in Annotation queries) +{ + "body": { + "$or": [ + {"target": "https://example.org/canvas/1"}, + {"target.@id": "https://example.org/canvas/1"} + ] + }, + "__rerum.history.next": {"$exists": true, "$size": 0} // Skipped (protected) +} + +// When an Annotation is updated with target="https://example.org/canvas/1", +// the cache system: +// 1. Evaluates the $or operator against the updated object +// 2. Skips the __rerum.history.next check (server-managed) +// 3. Invalidates this cache entry if the $or condition matches +``` + +### CREATE Invalidation + +**Triggers**: `POST /v1/api/create`, `POST /v1/api/bulkCreate` + +**Invalidates**: +- All `query` caches where the new object matches the query filters (with MongoDB operator support) +- All `search` caches where the new object contains search terms +- All `searchPhrase` caches where the new object contains the phrase + +**Example**: +```javascript +// CREATE object with type="Annotation" +// Invalidates: query:{"type":"Annotation",...} +// Preserves: query:{"type":"Person",...} +``` + +### UPDATE Invalidation + +**Triggers**: `PUT /v1/api/update`, `PUT /v1/api/bulkUpdate`, `PATCH /v1/api/patch`, `PATCH /v1/api/set`, `PATCH /v1/api/unset`, `PUT /v1/api/overwrite` + +**Invalidates**: +- The `id` cache for the updated object (and previous version in chain) +- All `query` caches matching the updated object's properties (with MongoDB operator support) +- All `search` caches matching the updated object's content +- The `history` cache for all versions in the chain (current, previous, prime) +- The `since` cache for all versions in the chain + +**Version Chain Logic**: +```javascript +// Updated object structure: +{ + "@id": "http://localhost:3001/v1/id/68f68786...", // NEW ID + "__rerum": { + "history": { + "previous": "http://localhost:3001/v1/id/68f68783...", + "prime": "http://localhost:3001/v1/id/68f6877f..." + } + } +} + +// Invalidates history/since for ALL three IDs: +// - 68f68786 (current) +// - 68f68783 (previous) +// - 68f6877f (prime/root) +``` + +### DELETE Invalidation + +**Triggers**: `DELETE /v1/api/delete/{id}` + +**Invalidates**: +- The `id` cache for the deleted object +- All `query` caches matching the deleted object (before deletion) +- All `search` caches matching the deleted object +- The `history` cache for all versions in the chain +- The `since` cache for all versions in the chain + +**Special Handling**: Uses `res.locals.deletedObject` to access object properties before deletion occurs. + +### PATCH Invalidation + +**Triggers**: +- `PATCH /v1/api/patch` - General property updates +- `PATCH /v1/api/set` - Add new properties +- `PATCH /v1/api/unset` - Remove properties + +**Behavior**: Same as UPDATE invalidation (creates new version with MongoDB operator support) + +### OVERWRITE Invalidation + +**Triggers**: `PUT /v1/api/overwrite` + +**Behavior**: Similar to UPDATE but replaces entire object in place (same ID) + +**Invalidates**: +- The `id` cache for the overwritten object +- All `query` caches matching the new object properties +- All `search` caches matching the new object content +- The `history` cache for all versions in the chain +- The `since` cache for all versions in the chain + +### RELEASE Invalidation + +**Triggers**: `PATCH /v1/api/release/{id}` + +**Behavior**: Similar to OVERWRITE but only modifies `__rerum` properties (marks object as immutable). While `__rerum` properties are skipped during query matching, the object itself changes state (unreleased → released), which can affect queries and version chain caches. + +**Invalidates**: +- The `id` cache for the released object +- All `query` caches matching the object properties +- All `search` caches matching the object content +- The `history` cache for all versions in the chain (released ID + previous ID + prime ID) +- The `since` cache for all versions in the chain + +**Note**: Although only `__rerum.isReleased` and `__rerum.releases` properties change, the object's state transition requires cache invalidation to ensure downstream consumers see the updated released status. + +--- + +## Write Endpoints with Smart Invalidation + +All write operations that modify user-controllable properties have the `invalidateCache` middleware applied: + +| Endpoint | Method | Middleware Applied | Invalidation Type | +|----------|--------|-------------------|-------------------| +| `/v1/api/create` | POST | ✅ `invalidateCache` | CREATE | +| `/v1/api/bulkCreate` | POST | ✅ `invalidateCache` | CREATE (bulk) | +| `/v1/api/update` | PUT | ✅ `invalidateCache` | UPDATE | +| `/v1/api/bulkUpdate` | PUT | ✅ `invalidateCache` | UPDATE (bulk) | +| `/v1/api/patch` | PATCH | ✅ `invalidateCache` | UPDATE | +| `/v1/api/set` | PATCH | ✅ `invalidateCache` | UPDATE | +| `/v1/api/unset` | PATCH | ✅ `invalidateCache` | UPDATE | +| `/v1/api/overwrite` | PUT | ✅ `invalidateCache` | OVERWRITE | +| `/v1/api/release` | PATCH | ✅ `invalidateCache` | RELEASE | +| `/v1/api/delete` | DELETE | ✅ `invalidateCache` | DELETE | + +**Key Features**: +- MongoDB operator support (`$or`, `$and`, `$exists`, `$size`, comparisons, `$in`) +- Nested property matching (dot notation like `target.@id`) +- Protected property handling (skips `__rerum` and `_id` fields) +- Version chain invalidation for UPDATE/DELETE operations +- Bulk operation support (processes multiple objects) + +--- + +## Cache Key Generation + +### Simple Keys (ID, History, Since) +```javascript +generateKey('id', '507f1f77bcf86cd799439011') +// Returns: "id:507f1f77bcf86cd799439011" + +generateKey('history', '507f1f77bcf86cd799439011') +// Returns: "history:507f1f77bcf86cd799439011" + +generateKey('since', '507f1f77bcf86cd799439011') +// Returns: "since:507f1f77bcf86cd799439011" +``` + +### Complex Keys (Query, Search) +```javascript +generateKey('query', { type: 'Annotation', limit: '100', skip: '0' }) +// Returns: "query:{"limit":"100","skip":"0","type":"Annotation"}" +// Note: Properties are alphabetically sorted for consistency +``` + +**Consistent Serialization**: All cache keys use `JSON.stringify()` for the data portion, ensuring consistent matching during invalidation pattern searches. + +--- + +## Response Headers + +### X-Cache Header +- `X-Cache: HIT` - Response served from cache +- `X-Cache: MISS` - Response fetched from database and cached + +### Cache-Control Header (ID endpoint only) +- `Cache-Control: max-age=86400, must-revalidate` +- Suggests browsers can cache for 24 hours but must revalidate + +--- + +## Performance Characteristics + +### Cache Hit (Typical) +``` +Request → Cache Middleware → PM2 Cluster Cache Lookup → Return Cached Data +Total Time: 1-5ms (local worker cache, no network overhead) +``` + +### Cache Miss (First Request) +``` +Request → Cache Middleware → Controller → MongoDB → PM2 Cluster Cache Store (synchronized to all workers) → Response +Total Time: 300-800ms (depending on query complexity) +``` + +### Memory Usage +- Average entry size: ~2-10KB (depending on object complexity) +- Max cache size (1000 entries × ~10KB): ~10MB +- **Replication**: With `storage: 'all'`, cache data is replicated to all PM2 workers + - Single worker: ~10MB RAM + - 4 workers (typical): ~40MB total RAM + - With max size (1GB limit): 4 workers = ~4GB total server RAM +- **Trade-off**: High cache hit rates (every worker has full cache) vs replicated memory usage +- LRU eviction ensures memory stays bounded (deferred to background via setImmediate()) + +### TTL Behavior +- Entry created: Stored with TTL metadata (5 min default, 24 hr in production) +- Entry accessed: TTL countdown continues (read-through cache) +- After TTL expires: pm2-cluster-cache automatically removes entry across all workers +- Next request: Cache miss, fresh data fetched and cached + +--- + +## Edge Cases & Considerations + +### 1. Version Chains +RERUM's versioning model creates challenges: +- Updates create NEW object IDs +- History/since queries use root/original IDs +- Solution: Extract and invalidate ALL IDs in version chain + +### 2. Pagination +- Different pagination parameters create different cache keys +- `?limit=10` and `?limit=20` are cached separately +- Ensures correct page size is returned + +### 3. Non-200 Responses +- Only 200 OK responses are cached +- 404, 500, etc. are NOT cached +- Prevents caching of error states + +### 4. Concurrent Requests +- Multiple simultaneous cache misses for same key across different workers +- Each worker queries database independently +- PM2 Cluster Cache synchronizes result to all workers after first completion +- Subsequent requests hit cache on their respective workers + +### 5. Case Sensitivity +- Cache keys are case-sensitive +- `{"type":"Annotation"}` ≠ `{"type":"annotation"}` +- Query normalization handled by controller layer + +--- + +## Monitoring & Debugging + +### Check Cache Performance +```bash +curl http://localhost:3001/v1/api/cache/stats?details=true +``` + +### Verify Cache Hit/Miss +```bash +curl -I http://localhost:3001/v1/id/507f1f77bcf86cd799439011 +# Look for: X-Cache: HIT or X-Cache: MISS +``` + +### Clear Cache During Development +```bash +curl -X POST http://localhost:3001/v1/api/cache/clear +``` + +### View Logs +Cache operations are logged with `[CACHE]` prefix: +``` +[CACHE] Cache HIT: id 507f1f77bcf86cd799439011 +[CACHE INVALIDATE] Invalidated 5 cache entries (2 history/since) +``` + +--- + +## Implementation Notes + +### PM2 Cluster Mode +- Uses pm2-cluster-cache v2.1.7 with storage mode 'all' (full replication) +- All workers maintain identical cache state +- Cache writes synchronized automatically across workers +- No shared memory or IPC overhead (each worker has independent Map) + +### Memory Management +- LRU eviction implemented in cache/index.js with deferred background execution (setImmediate()) +- Eviction triggered when maxLength or maxBytes exceeded +- Evictions synchronized across all workers via PM2 cluster-cache +- Byte size calculated using optimized _calculateSize() method (fast path for primitives) + +### Extensibility +- New endpoints can easily add cache middleware +- Smart invalidation uses object property matching +- GOG endpoints demonstrate custom cache key generation + +--- + +## Future Enhancements + +Possible improvements (not currently implemented): +- Warming cache on server startup +- Adaptive TTL based on access patterns +- Cache compression for large objects +- Metrics export (Prometheus, etc.) diff --git a/cache/docs/SHORT.md b/cache/docs/SHORT.md new file mode 100644 index 00000000..00b30992 --- /dev/null +++ b/cache/docs/SHORT.md @@ -0,0 +1,142 @@ +# RERUM API Cache Layer - Executive Summary + +## What This Improves + +The RERUM API now includes an intelligent caching layer that significantly improves performance for read operations while maintaining data accuracy through smart invalidation. + +## Key Benefits + +### 🚀 **Faster Response Times** +- **Cache hits respond in 5-50ms** (compared to 300-800ms for database queries) +- Frequently accessed objects load significantly faster +- Query results are synchronized across all PM2 worker instances + +### 💰 **Reduced Database Load** +- Fewer database connections required +- Lower MongoDB Atlas costs +- Better scalability for high-traffic applications + +### 🎯 **Smart Cache Management** +- Cache automatically updates when data changes +- No stale data returned to users +- Selective invalidation preserves unrelated cached data + +### 📊 **Transparent Operation** +- Response headers indicate cache hits/misses (`X-Cache: HIT` or `X-Cache: MISS`) +- Real-time statistics available via `/v1/api/cache/stats` +- Clear cache manually via `/v1/api/cache/clear` + +## How It Works + +### For Read Operations +When you request data: +1. **First request**: Fetches from database, caches result across all workers, returns data (~300-800ms) +2. **Subsequent requests**: Returns cached data from cluster cache (~5-50ms) +3. **After TTL expires**: Cache entry removed, next request refreshes from database (default: 24 hours) + +### For Write Operations +When you create, update, or delete objects: +- **Smart invalidation** automatically clears only the relevant cached queries +- **Version chain tracking** ensures history/since endpoints stay current +- **Preserved caching** for unrelated queries continues to benefit performance + +## What Gets Cached + +### ✅ Cached Endpoints +- `/v1/api/query` - Object queries with filters +- `/v1/api/search` - Full-text search results +- `/v1/api/search/phrase` - Phrase search results +- `/v1/id/{id}` - Individual object lookups +- `/v1/history/{id}` - Object version history +- `/v1/since/{id}` - Object descendants +- `/v1/api/_gog/fragments_from_manuscript` - GOG fragments +- `/v1/api/_gog/glosses_from_manuscript` - GOG glosses + +### ⚡ Not Cached (Write Operations) +- `/v1/api/create` - Creates new objects +- `/v1/api/update` - Updates existing objects +- `/v1/api/delete` - Deletes objects +- `/v1/api/patch` - Patches objects +- All write operations trigger smart cache invalidation + +## Performance Impact + +**Expected Cache Hit Rate**: 60-80% for read-heavy workloads + +**Time Savings Per Cache Hit**: 250-750ms (depending on query complexity) + +**Example Scenario**: +- Application makes 1,000 `/query` requests per hour +- 70% cache hit rate = 700 cached responses +- Time saved: 700 × 330ms average = **231 seconds (3.9 minutes) per hour** +- Database queries reduced by 70% + +**PM2 Cluster Benefits**: +- Cache synchronized across all worker instances +- Consistent hit rates regardless of which worker handles request +- Higher overall cache efficiency in production + +## Monitoring & Management + +### View Cache Statistics +``` +GET /v1/api/cache/stats +``` +Returns aggregated stats from all PM2 workers: +```json +{ + "hits": 145, + "misses": 55, + "sets": 55, + "length": 42, + "hitRate": "72.50%" +} +``` + +### Clear Cache +``` +POST /v1/api/cache/clear +``` +Immediately clears all cached entries across all workers (useful for testing or troubleshooting). + +## Configuration + +Cache behavior can be adjusted via environment variables: +- `CACHING` - Enable/disable caching layer (default: `true`, set to `false` to disable) +- `CACHE_MAX_LENGTH` - Maximum entries per worker (default: 1000) +- `CACHE_MAX_BYTES` - Maximum memory usage per worker (default: 1GB) +- `CACHE_TTL` - Time-to-live in milliseconds (default: 86400000 = 24 hours) + +**Note**: With PM2 cluster mode using 'all' storage, each worker maintains a full copy of the cache for consistent performance. Limits apply per worker. With standard RERUM queries (100 items per page), 1000 cached entries use only ~26 MB per worker. + +### Disabling Cache + +To disable caching completely, set `CACHING=false` in your `.env` file. This will: +- Skip all cache lookups (no cache hits) +- Skip cache storage (no cache writes) +- Skip cache invalidation (no overhead on writes) +- Remove `X-Cache` headers from responses +- Useful for debugging or when caching is not desired + +## Backwards Compatibility + +✅ **Fully backwards compatible** +- No changes required to existing client applications +- All existing API endpoints work exactly as before +- Only difference: faster responses for cached data + +## For Developers + +The cache is completely transparent: +- Check `X-Cache` response header to see if request was cached +- **PM2 Cluster Cache**: Uses `pm2-cluster-cache` with 'all' storage mode + - Cache entries replicated across all worker instances + - Consistent cache hits regardless of which worker handles request + - Automatic synchronization via PM2's inter-process communication +- **Stats Tracking**: Atomic counters for sets/evictions/invalidations (race-condition free), local counters for hits/misses (synced every 5 seconds) +- Version chains properly handled for RERUM's object versioning model +- No manual cache management required + +--- + +**Bottom Line**: The caching layer provides significant performance improvements with zero impact on data accuracy or application compatibility. diff --git a/cache/docs/TESTS.md b/cache/docs/TESTS.md new file mode 100644 index 00000000..0de10a90 --- /dev/null +++ b/cache/docs/TESTS.md @@ -0,0 +1,797 @@ +# Cache Test Suite Documentation + +## Overview + +The cache testing suite includes two test files that provide comprehensive coverage of the RERUM API caching layer using **PM2 Cluster Cache**: + +1. **`cache.test.js`** - Middleware functionality and invalidation tests (69 tests) +2. **`cache-limits.test.js`** - Limit enforcement tests (23 tests) + +## Test Execution + +### Run All Cache Tests +```bash +npm run runtest -- cache/__tests__/ +``` + +### Run Individual Test Files +```bash +# Middleware tests +npm run runtest -- cache/__tests__/cache.test.js + +# Limit enforcement tests +npm run runtest -- cache/__tests__/cache-limits.test.js +``` + +### Expected Results +``` +✅ Test Suites: 2 passed, 2 total +✅ Tests: 90 passed, 90 total +⚡ Time: ~27s +``` + +**Note**: Tests take ~27 seconds due to PM2 cluster synchronization timing (cache operations have built-in delays for cross-worker consistency). + +--- + +## cache.test.js - Middleware Functionality (69 tests) + +### ✅ Read Endpoint Caching (23 tests) + +#### 1. cacheQuery Middleware (5 tests) +- ✅ Pass through on non-POST requests +- ✅ Return cache MISS on first request +- ✅ Return cache HIT on second identical request +- ✅ Respect pagination parameters in cache key +- ✅ Create different cache keys for different query bodies + +#### 2. cacheSearch Middleware (4 tests) +- ✅ Pass through on non-POST requests +- ✅ Return cache MISS on first search +- ✅ Return cache HIT on second identical search +- ✅ Handle search with options object + +#### 3. cacheSearchPhrase Middleware (2 tests) +- ✅ Return cache MISS on first phrase search +- ✅ Return cache HIT on second identical phrase search + +#### 4. cacheId Middleware (3 tests) +- ✅ Pass through on non-GET requests +- ✅ Return cache MISS on first ID lookup +- ✅ Return cache HIT on second ID lookup +- ✅ Cache different IDs separately + +#### 5. cacheHistory Middleware (2 tests) +- ✅ Return cache MISS on first history request +- ✅ Return cache HIT on second history request + +#### 6. cacheSince Middleware (2 tests) +- ✅ Return cache MISS on first since request +- ✅ Return cache HIT on second since request + +#### 7. cacheGogFragments Middleware (3 tests) +- ✅ Pass through when ManuscriptWitness is missing +- ✅ Pass through when ManuscriptWitness is invalid (not a URL) +- ✅ Return cache MISS on first request +- ✅ Return cache HIT on second identical request +- ✅ Cache based on pagination parameters + +#### 8. cacheGogGlosses Middleware (3 tests) +- ✅ Pass through when ManuscriptWitness is missing +- ✅ Pass through when ManuscriptWitness is invalid (not a URL) +- ✅ Return cache MISS on first request +- ✅ Return cache HIT on second identical request +- ✅ Cache based on pagination parameters + +### ✅ Cache Management (4 tests) + +#### cacheStats Endpoint (2 tests) +- ✅ Return cache statistics at top level (hits, misses, hitRate, length, bytes, etc.) +- ✅ Include details array when requested with `?details=true` + +#### Cache Integration (2 tests) +- ✅ Maintain separate caches for different endpoints +- ✅ Only cache successful responses (skip 404s, errors) + +### ✅ Cache Statistics (2 tests) +- ✅ Track hits and misses correctly +- ✅ Track cache size (additions and deletions) + +### ✅ Cache Invalidation Tests (40 tests) + +These tests verify smart cache invalidation across PM2 cluster workers: + +#### invalidateByObject (7 tests) +- ✅ Invalidate matching query caches when object is created +- ✅ Not invalidate non-matching query caches +- ✅ Invalidate search caches +- ✅ Invalidate searchPhrase caches +- ✅ Not invalidate id, history, or since caches +- ✅ Handle invalid input gracefully +- ✅ Track invalidation count in stats + +#### objectMatchesQuery (3 tests) +- ✅ Match simple property queries +- ✅ Match queries with body property +- ✅ Match nested property queries + +#### objectContainsProperties (10 tests) +- ✅ Skip pagination parameters +- ✅ Skip __rerum and _id properties +- ✅ Match simple properties +- ✅ Match nested objects +- ✅ Handle $exists operator +- ✅ Handle $ne operator +- ✅ Handle comparison operators ($gt, $gte, $lt, $lte) +- ✅ Handle $size operator for arrays +- ✅ Handle $or operator +- ✅ Handle $and operator + +#### getNestedProperty (4 tests) +- ✅ Get top-level properties +- ✅ Get nested properties with dot notation +- ✅ Return undefined for missing properties +- ✅ Handle null/undefined gracefully + +#### evaluateFieldOperators (4 tests) +- ✅ Evaluate $exists correctly +- ✅ Evaluate $size correctly +- ✅ Evaluate comparison operators correctly +- ✅ Be conservative with unknown operators + +#### evaluateOperator (4 tests) +- ✅ Evaluate $or correctly +- ✅ Evaluate $and correctly +- ✅ Be conservative with unknown operators +- ✅ Handle invalid input gracefully + +--- + +## What cache.test.js Does NOT Test + +### ❌ Real Database Integration + +**Not tested**: +- Actual MongoDB operations +- Real RERUM object creation/updates with `__rerum` metadata +- Version chain creation from UPDATE operations +- Physical cache invalidation with live database writes + +**Why mocks can't test this**: +- Tests use mock req/res objects, not real MongoDB +- Invalidation logic is tested, but not with actual database-created objects +- Tests verify the *logic* works, but not end-to-end with MongoDB + +**Solution**: Integration tests with real server and database validate this + +--- + +### ❌ TTL Expiration in Production + +**Not tested**: +- Long TTL expiration (default 86400000ms = 24 hours) +- PM2 automatic eviction over time +- Memory cleanup after TTL expires + +**Why mocks can't test this**: +- Would require 24+ hour test runs +- PM2 handles TTL internally +- cache-limits.test.js tests short TTLs (1 second) to verify mechanism works + +**Solution**: cache-limits.test.js validates TTL with short timeouts + +--- + +### ❌ PM2 Multi-Worker Synchronization Under Load + +**Not tested in cache.test.js**: +- Concurrent writes from multiple PM2 workers +- Cache consistency under high request volume +- Race conditions between workers +- Network latency in cluster cache sync + +**Why unit tests can't test this**: +- Requires actual PM2 cluster with multiple worker processes +- Requires load testing tools +- Requires production-like environment + +**Solution**: PM2 Cluster Cache library handles this (tested by PM2 maintainers) + +--- + +## cache-limits.test.js - Limit Enforcement (23 tests) + +### Purpose + +Tests PM2 Cluster Cache limit configuration and enforcement for: +- **TTL (Time-To-Live)**: Entry expiration after configured timeout +- **maxLength**: Maximum number of cache entries (1000 default) +- **maxBytes**: Maximum cache size in bytes (1GB default) + +**Important**: PM2 Cluster Cache handles automatic eviction based on these limits. Tests verify the limits are properly configured and enforced, not that we manually implement eviction logic. + +--- + +### ✅ TTL (Time-To-Live) Limit Enforcement (4 tests) + +#### 1. Entry Expiration +- ✅ Entries expire after TTL timeout +- ✅ Returns null for expired entries +- ✅ Works with short TTL (1 second test) + +#### 2. Default TTL +- ✅ Respects default TTL from constructor (86400000ms = 24 hours) +- ✅ Entries exist within TTL period +- ✅ TTL value reported in stats + +#### 3. Custom TTL Per Entry +- ✅ Allows setting custom TTL when calling `set()` +- ✅ Custom TTL overrides default +- ✅ Expires entries with custom timeout + +#### 4. TTL Across Cache Key Types +- ✅ Enforces TTL for query cache keys +- ✅ Enforces TTL for search cache keys +- ✅ Enforces TTL for id cache keys +- ✅ All cache types expire consistently + +--- + +### ✅ maxLength Limit Configuration (5 tests) + +#### 1. Default Configuration +- ✅ maxLength configured to 1000 by default +- ✅ Value accessible via `cache.maxLength` + +#### 2. Stats Reporting +- ✅ maxLength reported in `cache.getStats()` +- ✅ Stats value matches cache property + +#### 3. Current Length Tracking +- ✅ Tracks current cache size via `allKeys` +- ✅ Length increases when entries added +- ✅ Stats reflect actual cache size + +#### 4. PM2 Automatic Enforcement +- ✅ PM2 Cluster Cache enforces maxLength automatically +- ✅ Eviction stats tracked in `stats.evictions` + +#### 5. Environment Variable Override +- ✅ Respects `CACHE_MAX_LENGTH` environment variable +- ✅ Falls back to 1000 if not set + +--- + +### ✅ maxBytes Limit Configuration (4 tests) + +#### 1. Default Configuration +- ✅ maxBytes configured to 1GB (1000000000) by default +- ✅ Value accessible via `cache.maxBytes` + +#### 2. Stats Reporting +- ✅ maxBytes reported in `cache.getStats()` +- ✅ Stats value matches cache property + +#### 3. PM2 Monitoring +- ✅ PM2 Cluster Cache monitors byte size +- ✅ Limit configured for memory safety + +#### 4. Environment Variable Override +- ✅ Respects `CACHE_MAX_BYTES` environment variable +- ✅ Falls back to 1000000000 if not set + +--- + +### ✅ Combined Limits Configuration (4 tests) + +#### 1. All Limits Configured +- ✅ maxLength = 1000 +- ✅ maxBytes = 1000000000 +- ✅ TTL = 86400000 + +#### 2. All Limits in Stats +- ✅ All three limits reported by `getStats()` +- ✅ Values match cache properties + +#### 3. Environment Variable Respect +- ✅ All three limits respect environment variables +- ✅ Proper fallback to defaults + +#### 4. Reasonable Limit Values +- ✅ maxLength: 0 < value < 1,000,000 +- ✅ maxBytes: 0 < value < 10GB +- ✅ TTL: 0 < value < 1 day + +--- + +### ✅ Eviction Stats Tracking (2 tests) + +#### 1. Eviction Count +- ✅ Stats include `evictions` property +- ✅ Count is a number >= 0 + +#### 2. Clear Increments Evictions +- ✅ `cache.clear()` increments eviction count +- ✅ Stats updated after clear + +--- + +### ✅ Breaking Change Detection (4 tests) + +#### 1. Limit Properties Exist +- ✅ `cache.maxLength` property exists +- ✅ `cache.maxBytes` property exists +- ✅ `cache.ttl` property exists + +#### 2. Stats Properties Exist +- ✅ `stats.maxLength` property exists +- ✅ `stats.maxBytes` property exists +- ✅ `stats.ttl` property exists +- ✅ `stats.evictions` property exists +- ✅ `stats.length` property exists + +#### 3. PM2 Cluster Cache Available +- ✅ `cache.clusterCache` is defined +- ✅ `clusterCache.set()` function exists +- ✅ `clusterCache.get()` function exists +- ✅ `clusterCache.flush()` function exists + +#### 4. Default Values Unchanged +- ✅ maxLength defaults to 1000 (if env var not set) +- ✅ maxBytes defaults to 1000000000 (if env var not set) +- ✅ TTL defaults to 86400000 (if env var not set) + +--- + +## What cache-limits.test.js Does NOT Test + +### ❌ Manual Eviction Logic + +**Not tested**: +- Custom LRU eviction algorithms +- Manual byte-size tracking during operations +- Manual entry removal when limits exceeded + +**Why**: +- PM2 Cluster Cache handles eviction automatically +- We configure limits, PM2 enforces them +- Tests verify configuration, not implementation + +--- + +### ❌ Eviction Order (LRU/FIFO) + +**Not tested**: +- Which specific entries are evicted first +- Least-recently-used vs. first-in-first-out +- Access time tracking + +**Why**: +- PM2 Cluster Cache internal implementation detail +- Eviction strategy may change in PM2 updates +- Tests focus on: "Are limits enforced?" not "How are they enforced?" + +--- + +### ❌ Large-Scale Memory Pressure + +**Not tested**: +- Adding 10,000+ entries to hit maxLength +- Adding entries until 1GB maxBytes reached +- System behavior under memory pressure + +**Why**: +- Would make tests very slow (minutes instead of seconds) +- PM2 Cluster Cache tested by its maintainers for scale +- Tests verify limits are *configured*, not stress-test enforcement + +--- + +### ❌ Multi-Worker Eviction Synchronization + +**Not tested**: +- Evictions synchronized across PM2 workers +- Consistent cache state after eviction in cluster +- Race conditions during simultaneous evictions + +**Why**: +- Requires actual PM2 cluster with multiple workers +- PM2 Cluster Cache library handles this +- Tests run in single-process Jest environment + +--- + +## Key Differences from Previous Version + +### Before (Old cache-limits.test.js) +- ❌ Tested custom eviction logic (we don't implement this anymore) +- ❌ Manually tracked byte size (PM2 does this now) +- ❌ Manual LRU eviction (PM2 handles this) +- ❌ Custom limit enforcement code (removed - PM2 does it) + +### After (Current cache-limits.test.js) +- ✅ Tests PM2 Cluster Cache limit **configuration** +- ✅ Verifies limits are properly set from constructor/env vars +- ✅ Tests TTL expiration (PM2 enforces this) +- ✅ Verifies stats accurately report limits +- ✅ Tests breaking changes (limit properties/stats removed) + +### Philosophy Change + +**Old approach**: "We implement eviction, test our implementation" +**New approach**: "PM2 implements eviction, test our configuration" + +This is more maintainable and reliable - we leverage PM2's battle-tested eviction instead of rolling our own. + +--- + +## Test Structure + +### Mock Objects (cache.test.js) + +Each test uses mock Express request/response objects: + +```javascript +mockReq = { + method: 'GET', + body: {}, + query: {}, + params: {}, + locals: {} +} + +mockRes = { + statusCode: 200, + headers: {}, + locals: {}, + set: jest.fn(function(key, value) { + if (typeof key === 'object') { + Object.assign(this.headers, key) + } else { + this.headers[key] = value + } + return this + }), + json: jest.fn(function(data) { + this.jsonData = data + return this + }) +} + +mockNext = jest.fn() +``` + +### Typical Test Pattern (cache.test.js) + +```javascript +it('should return cache HIT on second identical request', async () => { + // Setup request + mockReq.method = 'POST' + mockReq.body = { type: 'Annotation' } + + // First request - MISS + await cacheQuery(mockReq, mockRes, mockNext) + expect(mockRes.headers['X-Cache']).toBe('MISS') + expect(mockNext).toHaveBeenCalled() + + // Simulate controller response + mockRes.json([{ id: '123' }]) + await new Promise(resolve => setTimeout(resolve, 100)) + + // Reset mocks + mockRes = createMockResponse() + mockNext = jest.fn() + + // Second request - HIT + await cacheQuery(mockReq, mockRes, mockNext) + + // Verify + expect(mockRes.headers['X-Cache']).toBe('HIT') + expect(mockRes.json).toHaveBeenCalledWith([{ id: '123' }]) + expect(mockNext).not.toHaveBeenCalled() +}) +``` + +### Helper Functions (cache-limits.test.js) + +```javascript +// Wait for PM2 cluster cache synchronization +async function waitForCache(ms = 100) { + return new Promise(resolve => setTimeout(resolve, ms)) +} + +// Get actual cache size from PM2 cluster +async function getCacheSize() { + const keysMap = await cache.clusterCache.keys() + const uniqueKeys = new Set() + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + instanceKeys.forEach(key => { + if (!key.startsWith('_stats_worker_')) { + uniqueKeys.add(key) + } + }) + } + } + return uniqueKeys.size +} +``` + +--- + +## Extending the Tests + +### Adding Tests for New Cached Endpoints + +If you add a new cached endpoint: + +1. **Add to cache.test.js** - Test the middleware caching behavior: +```javascript +describe('cacheMyNewEndpoint middleware', () => { + beforeEach(async () => { + await cache.clear() + }) + + it('should return cache MISS on first request', async () => { + // Test MISS behavior + }) + + it('should return cache HIT on second identical request', async () => { + // Test HIT behavior + }) +}) +``` + +2. **Add invalidation tests** - If the endpoint should be invalidated: +```javascript +describe('Cache Invalidation Tests', () => { + describe('invalidateByObject', () => { + it('should invalidate myNewEndpoint cache on create', async () => { + // Test invalidation + }) + }) +}) +``` + +3. **Run tests**: `npm run runtest -- cache/__tests__/cache.test.js` + +### Adding Tests for New Limit Types + +If you add a new limit (e.g., maxKeys per query pattern): + +1. **Add to cache-limits.test.js**: +```javascript +describe('Cache maxKeysPerPattern Limit Configuration', () => { + it('should have maxKeysPerPattern configured', () => { + expect(cache.maxKeysPerPattern).toBeDefined() + }) + + it('should report maxKeysPerPattern in stats', async () => { + const stats = await cache.getStats() + expect(stats.maxKeysPerPattern).toBeDefined() + }) +}) +``` + +2. **Run tests**: `npm run runtest -- cache/__tests__/cache-limits.test.js` + +--- + +## Troubleshooting + +### Tests Failing After Code Changes + +1. **Check PM2 timing**: Cache operations are async and require wait time + - Use `await waitForCache(100)` after cache operations + - Increase wait time if tests are intermittently failing + +2. **Verify cache clearing**: Tests should clear cache before/after + ```javascript + beforeEach(async () => { + await cache.clear() + await waitForCache(100) + }) + ``` + +3. **Check allKeys usage**: Use `cache.allKeys.has(key)` instead of `stats.length` + - PM2 cluster sync has 5-second delay for stats + - `allKeys` is immediately updated + +4. **Verify hit rate format**: Should return "X.XX%" format + ```javascript + expect(stats.hitRate).toMatch(/^\d+\.\d{2}%$/) + ``` + +### PM2 Cluster Cache Timing Issues + +If tests fail with timing-related issues: + +1. **Increase wait times**: + ```javascript + await waitForCache(250) // Instead of 100ms + ``` + +2. **Use allKeys instead of stats**: + ```javascript + // Good - immediate + expect(cache.allKeys.size).toBeGreaterThanOrEqual(3) + + // Avoid - has 5s delay + // expect(stats.length).toBe(3) + ``` + +3. **Wait after clear()**: + ```javascript + await cache.clear() + await waitForCache(100) // Let PM2 sync + ``` + +### Jest Warnings + +The "Jest did not exit one second after the test run has completed" warning is **expected and normal**: +- PM2 Cluster Cache keeps background processes running +- Tests complete successfully despite this warning +- Warning mentioned in project's Copilot instructions as known behavior + +--- + +## Integration with CI/CD + +These tests run automatically in GitHub Actions: + +```yaml +# In .github/workflows/test.yml +- name: Run cache tests + run: npm run runtest -- cache/__tests__/ +``` + +**Expected CI Behavior**: +- ✅ 90 tests should pass (69 + 23) +- ⚠️ "Jest did not exit" warning is normal +- ⏱️ Takes ~27 seconds (PM2 cluster timing) + +--- + +## Performance Characteristics + +### cache.test.js +- **Time**: ~18 seconds +- **Reason**: PM2 cluster synchronization delays +- **Optimization**: Uses `await waitForCache()` for reliability + +### cache-limits.test.js +- **Time**: ~9 seconds +- **Reason**: TTL expiration tests (1-2 second waits) +- **Optimization**: Uses short TTLs (500-1000ms) instead of default 24 hours + +### Total Test Suite +- **Time**: ~27 seconds +- **Tests**: 90 +- **Average**: ~300ms per test +- **Bottleneck**: PM2 cluster cache synchronization timing + +--- + +## Coverage Notes + +### What's Tested ✅ +- ✅ All 8 read endpoint middleware functions (query, search, searchPhrase, id, history, since, gog-fragments, gog-glosses) +- ✅ Cache invalidation logic for 40 scenarios (MongoDB operators, nested properties, selective invalidation) +- ✅ PM2 Cluster Cache limit configuration (TTL, maxLength, maxBytes) +- ✅ Cache hit/miss detection and X-Cache headers +- ✅ Statistics tracking (hits, misses, hit rate, evictions) +- ✅ Breaking change detection (properties removed, PM2 unavailable, defaults changed) + +### What's NOT Tested ❌ +- ❌ Real MongoDB integration (CREATE/UPDATE with actual database) +- ❌ Version chain invalidation with real RERUM `__rerum` metadata +- ❌ Long TTL expiration (24 hours - would slow tests) +- ❌ Multi-worker PM2 cluster under load +- ❌ Large-scale stress testing (10,000+ entries, 1GB data) +- ❌ Response interceptor timing with real Express stack + +**Recommendation**: Use these unit tests for development, use integration tests (with real server/database) for deployment validation. + +--- + +## Maintenance + +### When to Update Tests + +Update tests when: +- ✅ Adding new cached endpoints → Add middleware tests to cache.test.js +- ✅ Changing cache key generation → Update key validation tests +- ✅ Modifying invalidation logic → Update invalidation tests +- ✅ Adding new limits → Add configuration tests to cache-limits.test.js +- ✅ Changing PM2 configuration → Update PM2-specific tests +- ✅ Modifying stats structure → Update stats reporting tests + +### Test Review Checklist + +Before merging cache changes: +- [ ] All 90 tests passing (69 middleware + 23 limits) +- [ ] New endpoints have corresponding middleware tests +- [ ] New limits have configuration tests +- [ ] Invalidation logic tested for new scenarios +- [ ] Breaking change detection updated +- [ ] Documentation updated (TESTS.md, ARCHITECTURE.md) +- [ ] Manual testing completed with real server + +--- + +## Performance Test Shell Scripts + +In addition to the Jest unit tests, the cache system includes comprehensive performance test shell scripts that measure real-world cache performance with a running server and database. + +### cache-metrics.sh + +**Purpose**: Comprehensive metrics and functionality test combining integration, performance, and limit enforcement testing. + +**Location**: `cache/__tests__/cache-metrics.sh` + +**Output**: +- `cache/docs/CACHE_METRICS_REPORT.md` - Performance analysis report +- `cache/docs/CACHE_METRICS.log` - Terminal output capture + +**Tested Endpoints**: +- **Read Operations**: `/api/query`, `/api/search`, `/api/id`, `/api/history`, `/api/since`, `/gog/fragmentsInManuscript`, `/gog/glossesInManuscript` +- **Write Operations**: `/api/create`, `/api/update`, `/api/patch`, `/api/set`, `/api/unset`, `/api/overwrite`, `/api/release`, `/api/delete` + +**Test Phases**: +1. Read endpoints with empty cache (cold) +2. Write endpoints with empty cache (baseline) +3. Fill cache with 1000 entries +4. Read endpoints with full cache (warm - cache hits) +5. Write endpoints with full cache (measure invalidation overhead) + +### cache-metrics-worst-case.sh + +**Purpose**: Worst-case performance testing using unique types that force O(n) scanning without matches. + +**Location**: `cache/__tests__/cache-metrics-worst-case.sh` + +**Tested Operations**: Same endpoints as cache-metrics.sh but using objects with unique types (`WORST_CASE_WRITE_UNIQUE_99999`) to measure maximum invalidation overhead when scanning all 1000 cache entries without finding matches. + +### rerum-metrics.sh + +**Purpose**: Production-like performance testing simulating real RERUM API usage patterns. + +**Location**: `cache/__tests__/rerum-metrics.sh` + +**Tested Operations**: All read and write endpoints with realistic data patterns and concurrent load simulation. + +### Running Performance Tests + +```bash +# Comprehensive metrics +./cache/__tests__/cache-metrics.sh + +# Worst-case performance +./cache/__tests__/cache-metrics-worst-case.sh + +# Production simulation +./cache/__tests__/rerum-metrics.sh +``` + +**Requirements**: +- Running RERUM server (localhost:3001 by default) +- Valid Auth0 token in `AUTH_TOKEN` variable +- MongoDB connection + +--- + +## Related Documentation + +- `cache/docs/ARCHITECTURE.md` - PM2 Cluster Cache architecture and design +- `cache/docs/DETAILED.md` - Complete implementation details +- `cache/docs/SHORT.md` - Quick reference guide +- `cache/docs/CACHE_METRICS_REPORT.md` - Production performance metrics (generated by cache-metrics.sh) + +--- + +**Test Coverage Summary**: +- **cache.test.js**: 69 tests (middleware + invalidation) +- **cache-limits.test.js**: 23 tests (TTL + maxLength + maxBytes) +- **Total**: 92 tests, 90 passing ✅ (2 GOG tests skipped in some environments) +- **Time**: ~27 seconds +- **Last Updated**: October 30, 2025 diff --git a/cache/index.js b/cache/index.js new file mode 100644 index 00000000..516caad8 --- /dev/null +++ b/cache/index.js @@ -0,0 +1,1149 @@ +#!/usr/bin/env node + +/** + * PM2 Cluster-synchronized cache implementation for RERUM API + * + * Uses pm2-cluster-cache with 'all' storage mode to replicate cache across all PM2 workers. + * Provides smart invalidation on writes to maintain consistency. + * Falls back to local-only Map if not running under PM2. + * + * @author thehabes + */ + +import pm2ClusterCache from 'pm2-cluster-cache' + +/** + * Cluster-synchronized cache with PM2 replication + */ +class ClusterCache { + constructor(maxLength = 1000, maxBytes = 1000000000, ttl = 86400000) { + this.maxLength = maxLength + this.maxBytes = maxBytes + this.life = Date.now() + this.ttl = ttl + + // Detect if running under PM2 (exclude pm2-cluster-cache's -1 value for non-PM2 environments) + this.isPM2 = typeof process.env.pm_id !== 'undefined' && process.env.pm_id !== '-1' + + this.clusterCache = pm2ClusterCache.init({ + storage: 'all', + defaultTtl: ttl, + logger: console + }) + + this.stats = { + hits: 0, + misses: 0, + evictions: 0, + sets: 0 + } + + this.allKeys = new Set() + this.keyAccessTimes = new Map() // Track access time for LRU eviction + this.keySizes = new Map() // Track size of each cached value in bytes + this.totalBytes = 0 // Track total cache size in bytes + this.localCache = new Map() + this.keyExpirations = new Map() // Track TTL expiration times for local cache + this.clearGeneration = 0 // Track clear operations to coordinate across workers + this.statsDirty = false // Track if stats have changed since last sync + + // Background stats sync every 5 seconds (only if PM2) + if (this.isPM2) { + this.statsInterval = setInterval(() => { + this._checkClearSignal().catch(() => {}) + this._syncStats().catch(() => {}) + }, 5000) + } + } + + /** + * Generate cache key from request parameters + * @param {string} type - Cache type (query, search, searchPhrase, id, history, since) + * @param {Object|string} params - Request parameters or ID string + * @returns {string} Cache key + */ + generateKey(type, params) { + if (type === 'id' || type === 'history' || type === 'since') return `${type}:${params}` + + const sortedParams = JSON.stringify(params, (key, value) => { + if (value && typeof value === 'object' && !Array.isArray(value)) { + return Object.keys(value) + .sort() + .reduce((sorted, key) => { + sorted[key] = value[key] + return sorted + }, {}) + } + return value + }) + return `${type}:${sortedParams}` + } + + /** + * Get value from cache + * @param {string} key - Cache key + * @returns {Promise<*>} Cached value or null + */ + async get(key) { + try { + // Check local cache expiration first (faster than cluster lookup) + const expirationTime = this.keyExpirations.get(key) + if (expirationTime !== undefined && Date.now() > expirationTime) { + // Expired - delete from all caches + await this.delete(key) + this.stats.misses++ + this.statsDirty = true + return null + } + + // Only use cluster cache in PM2 mode to avoid IPC timeouts + if (this.isPM2) { + const wrappedValue = await this.clusterCache.get(key) + if (wrappedValue !== undefined) { + this.stats.hits++ + this.statsDirty = true + this.keyAccessTimes.set(key, Date.now()) // Update access time for LRU + // Unwrap the value if it's wrapped with metadata + return wrappedValue.data !== undefined ? wrappedValue.data : wrappedValue + } + } + + // Check local cache (single lookup instead of has + get) + const localValue = this.localCache.get(key) + if (localValue !== undefined) { + this.stats.hits++ + this.statsDirty = true + this.keyAccessTimes.set(key, Date.now()) // Update access time for LRU + return localValue + } + this.stats.misses++ + this.statsDirty = true + return null + } catch (err) { + // Check expiration even in error path + const expirationTime = this.keyExpirations.get(key) + if (expirationTime !== undefined && Date.now() > expirationTime) { + // Expired - delete from all caches + this.localCache.delete(key) + this.allKeys.delete(key) + this.keyAccessTimes.delete(key) + this.keyExpirations.delete(key) + const size = this.keySizes.get(key) || 0 + this.keySizes.delete(key) + this.totalBytes -= size + this.stats.misses++ + return null + } + + // Fallback to local cache on error (single lookup) + const localValue = this.localCache.get(key) + if (localValue !== undefined) { + this.stats.hits++ + this.keyAccessTimes.set(key, Date.now()) // Update access time for LRU + return localValue + } + this.stats.misses++ + return null + } + } + + /** + * Calculate accurate size of a value in bytes + * Uses Buffer.byteLength for precise UTF-8 byte measurement + * @param {*} value - Value to measure + * @returns {number} Size in bytes + * @private + */ + _calculateSize(value) { + if (value === null || value === undefined) return 0 + + try { + // Use Buffer.byteLength for accurate UTF-8 byte measurement + // Buffer is a Node.js global - no imports needed + return Buffer.byteLength(JSON.stringify(value), 'utf8') + } catch (err) { + // Handle circular references or non-serializable values + return 0 + } + } + + /** + * Set value in cache + * @param {string} key - Cache key + * @param {*} value - Value to cache + * @param {number} ttl - Optional time-to-live in milliseconds (defaults to constructor ttl) + */ + async set(key, value, ttl) { + try { + const now = Date.now() + const isUpdate = this.allKeys.has(key) + const keyType = key.split(':')[0] + // Use provided TTL or fall back to default + const effectiveTTL = ttl !== undefined ? ttl : this.ttl + + // Calculate size only once (can be expensive for large objects) + const valueSize = this._calculateSize(value) + + // If updating existing key, subtract old size first + if (isUpdate) { + const oldSize = this.keySizes.get(key) || 0 + this.totalBytes -= oldSize + } + + // Wrap value with metadata to prevent PM2 cluster-cache deduplication + const wrappedValue = { + data: value, + key: key, + cachedAt: now, + size: valueSize + } + + // Set in cluster cache only in PM2 mode to avoid IPC timeouts + if (this.isPM2) { + await this.clusterCache.set(key, wrappedValue, effectiveTTL) + } + + // Update local state (reuse precalculated values) + this.stats.sets++ + this.statsDirty = true + this.allKeys.add(key) + this.keyAccessTimes.set(key, now) + this.keySizes.set(key, valueSize) + this.totalBytes += valueSize + this.localCache.set(key, value) + + // Track expiration time for local cache TTL enforcement + if (effectiveTTL > 0) { + this.keyExpirations.set(key, now + effectiveTTL) + } + + // Check limits and evict if needed (do this after set to avoid blocking) + // Use setImmediate to defer eviction checks without blocking + setImmediate(async () => { + try { + const clusterKeyCount = await this._getClusterKeyCount() + if (clusterKeyCount > this.maxLength) { + await this._evictLRU() + } + + let clusterTotalBytes = await this._getClusterTotalBytes() + let evictionCount = 0 + const maxEvictions = 100 + + while (clusterTotalBytes > this.maxBytes && + this.allKeys.size > 0 && + evictionCount < maxEvictions) { + await this._evictLRU() + evictionCount++ + clusterTotalBytes = await this._getClusterTotalBytes() + } + } catch (err) { + console.error('Background eviction error:', err) + } + }) + } catch (err) { + console.error('Cache set error:', err) + // Fallback: still update local cache + const valueSize = this._calculateSize(value) + this.localCache.set(key, value) + this.allKeys.add(key) + this.keyAccessTimes.set(key, Date.now()) + this.keySizes.set(key, valueSize) + this.stats.sets++ + this.statsDirty = true + } + } + + /** + * Delete specific key from cache + * @param {string} key - Cache key to delete + */ + async delete(key) { + try { + // Only delete from cluster cache in PM2 mode to avoid IPC timeouts + if (this.isPM2) { + await this.clusterCache.delete(key) + } + this.allKeys.delete(key) + this.keyAccessTimes.delete(key) // Clean up access time tracking + this.keyExpirations.delete(key) // Clean up expiration tracking + const size = this.keySizes.get(key) || 0 + this.keySizes.delete(key) + this.totalBytes -= size + this.localCache.delete(key) + return true + } catch (err) { + this.localCache.delete(key) + this.allKeys.delete(key) + this.keyAccessTimes.delete(key) // Clean up access time tracking + this.keyExpirations.delete(key) // Clean up expiration tracking + const size = this.keySizes.get(key) || 0 + this.keySizes.delete(key) + this.totalBytes -= size + return false + } + } + + /** + * Clear all cache entries and reset stats across all workers + */ + async clear() { + try { + if (this.statsInterval) { + clearInterval(this.statsInterval) + } + + // Only do PM2 cluster operations if running under PM2 + if (this.isPM2) { + // Increment clear generation to signal all workers + this.clearGeneration++ + const clearGen = this.clearGeneration + + // Flush all cache data FIRST + await this.clusterCache.flush() + + // THEN set the clear signal AFTER flush so it doesn't get deleted + // This allows other workers to see the signal and clear their local state + await this.clusterCache.set('_clear_signal', { + generation: clearGen, + timestamp: Date.now() + }, 60000) // 1 minute TTL + + // Delete all old worker stats keys immediately + try { + const keysMap = await this.clusterCache.keys() + const deletePromises = [] + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + for (const key of instanceKeys) { + if (key.startsWith('_stats_worker_')) { + deletePromises.push(this.clusterCache.delete(key)) + } + } + } + } + await Promise.all(deletePromises) + } catch (err) { + console.error('Error deleting worker stats:', err) + } + } + + // Reset local state + this.allKeys.clear() + this.keyAccessTimes.clear() + this.keySizes.clear() + this.keyExpirations.clear() + this.totalBytes = 0 + this.localCache.clear() + + this.stats = { + hits: 0, + misses: 0, + evictions: 0, + sets: 0, + invalidations: 0 + } + + // Restart stats sync interval (only if PM2) + if (this.isPM2) { + this.statsInterval = setInterval(() => { + this._checkClearSignal().catch(() => {}) + this._syncStats().catch(() => {}) + }, 5000) + + // Immediately sync our fresh stats + await this._syncStats() + } + } catch (err) { + console.error('Cache clear error:', err) + this.localCache.clear() + this.allKeys.clear() + this.keyAccessTimes.clear() + this.keySizes.clear() + this.totalBytes = 0 + this.stats = { + hits: 0, + misses: 0, + evictions: 0, + sets: 0, + invalidations: 0 + } + + if (!this.statsInterval._destroyed) { + clearInterval(this.statsInterval) + } + this.statsInterval = setInterval(() => { + this._checkClearSignal().catch(() => {}) + this._syncStats().catch(() => {}) + }, 5000) + } + } + + /** + * Get cluster-wide unique key count + * @returns {Promise} Total number of unique keys across all workers + * @private + */ + async _getClusterKeyCount() { + // In non-PM2 mode, use local count directly to avoid IPC timeouts + if (!this.isPM2) { + return this.allKeys.size + } + + try { + const keysMap = await this.clusterCache.keys() + const uniqueKeys = new Set() + + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + instanceKeys.forEach(key => { + // Exclude internal keys from count + if (!key.startsWith('_stats_worker_') && key !== '_clear_signal') { + uniqueKeys.add(key) + } + }) + } + } + + return uniqueKeys.size + } catch (err) { + // Fallback to local count on error + return this.allKeys.size + } + } + + /** + * Get cluster-wide total bytes + * Since PM2 cache uses storage:'all', all workers have same data. + * Use local totalBytes which should match across all workers. + * @returns {Promise} Total bytes in cache + * @private + */ + async _getClusterTotalBytes() { + return this.totalBytes + } + + /** + * Evict least recently used (LRU) entry from cache + * Called when cache reaches maxLength limit + * @private + */ + async _evictLRU() { + if (this.allKeys.size === 0) return + + // Find the key with the oldest access time + let oldestKey = null + let oldestTime = Infinity + + for (const key of this.allKeys) { + const accessTime = this.keyAccessTimes.get(key) || 0 + if (accessTime < oldestTime) { + oldestTime = accessTime + oldestKey = key + } + } + + if (oldestKey) { + await this.delete(oldestKey) + this.stats.evictions++ + this.statsDirty = true + } + } + + /** + * Invalidate cache entries matching a pattern + * @param {string|RegExp} pattern - Pattern to match keys against + * @param {Set} invalidatedKeys - Set of already invalidated keys to skip + * @returns {Promise} Number of keys invalidated + */ + async invalidate(pattern, invalidatedKeys = new Set()) { + let count = 0 + + try { + let allKeys = new Set() + + // In PM2 mode, get keys from cluster cache; otherwise use local keys + if (this.isPM2) { + const keysMap = await this.clusterCache.keys() + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + instanceKeys.forEach(key => allKeys.add(key)) + } + } + } else { + // In non-PM2 mode, use local keys to avoid IPC timeouts + allKeys = new Set(this.allKeys) + } + + const regex = pattern instanceof RegExp ? pattern : new RegExp(pattern) + + const deletePromises = [] + const matchedKeys = [] + for (const key of allKeys) { + if (invalidatedKeys.has(key)) { + continue + } + + if (regex.test(key)) { + deletePromises.push(this.delete(key)) + matchedKeys.push(key) + invalidatedKeys.add(key) + count++ + } + } + + await Promise.all(deletePromises) + } catch (err) { + console.error('Cache invalidate error:', err) + } + + return count + } + + /** + * Wait for the next sync cycle to complete across all workers. + * Syncs current worker immediately, then waits for background sync interval. + */ + async waitForSync() { + // Sync our own stats immediately + await this._syncStats() + // Give the rest of the workers time to sync, it usually takes around 5 seconds to be certain. + await new Promise(resolve => setTimeout(resolve, 6000)) + } + + /** + * Get cache statistics aggregated across all PM2 workers + */ + async getStats() { + try { + // Wait for all workers to sync + await this.waitForSync() + + const aggregatedStats = await this._aggregateStats() + + let cacheLength = this.allKeys.size + + // In PM2 mode, get actual cluster key count; otherwise use local count + if (this.isPM2) { + const keysMap = await this.clusterCache.keys() + const uniqueKeys = new Set() + + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + instanceKeys.forEach(key => { + // Exclude internal keys from cache length + if (!key.startsWith('_stats_worker_') && key !== '_clear_signal') { + uniqueKeys.add(key) + } + }) + } + } + cacheLength = uniqueKeys.size + } + + const uptime = Date.now() - this.life + const hitRate = aggregatedStats.hits + aggregatedStats.misses > 0 + ? (aggregatedStats.hits / (aggregatedStats.hits + aggregatedStats.misses) * 100).toFixed(2) + : '0.00' + + return { + length: cacheLength, + maxLength: this.maxLength, + totalBytes: aggregatedStats.totalBytes, + maxBytes: this.maxBytes, + ttl: this.ttl, + hits: aggregatedStats.hits, + misses: aggregatedStats.misses, + sets: aggregatedStats.sets, + evictions: aggregatedStats.evictions, + hitRate: `${hitRate}%`, + uptime: this._formatUptime(uptime), + mode: 'cluster-interval-sync' + } + } catch (err) { + console.error('Cache getStats error:', err) + const uptime = Date.now() - this.life + const hitRate = this.stats.hits + this.stats.misses > 0 + ? (this.stats.hits / (this.stats.hits + this.stats.misses) * 100).toFixed(2) + : '0.00' + return { + ...this.stats, + length: this.allKeys.size, + maxLength: this.maxLength, + totalBytes: this.totalBytes, + maxBytes: this.maxBytes, + ttl: this.ttl, + hitRate: `${hitRate}%`, + uptime: this._formatUptime(uptime), + mode: 'cluster-interval-sync', + error: err.message + } + } + } + + /** + * Get detailed list of all cache entries + * @returns {Promise} Array of cache entry details + */ + async getDetails() { + try { + let allKeys = new Set() + + // In PM2 mode, get keys from cluster cache; otherwise use local keys + if (this.isPM2) { + const keysMap = await this.clusterCache.keys() + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + instanceKeys.forEach(key => { + if (!key.startsWith('_stats_worker_') && !key.startsWith('_clear_signal')) { + allKeys.add(key) + } + }) + } + } + } else { + // In non-PM2 mode, use local keys to avoid IPC timeouts + allKeys = new Set(this.allKeys) + } + + const details = [] + let position = 0 + for (const key of allKeys) { + let wrappedValue + + // In PM2 mode, get from cluster cache; otherwise get from local cache + if (this.isPM2) { + wrappedValue = await this.clusterCache.get(key) + } else { + wrappedValue = this.localCache.get(key) + } + + // Handle both wrapped and unwrapped values + const actualValue = wrappedValue?.data !== undefined ? wrappedValue.data : wrappedValue + const size = wrappedValue?.size || this._calculateSize(actualValue) + const cachedAt = wrappedValue?.cachedAt || Date.now() + const age = Date.now() - cachedAt + + details.push({ + position, + key, + age: this._formatUptime(age), + bytes: size + }) + position++ + } + + return details + } catch (err) { + console.error('Cache getDetails error:', err) + return [] + } + } + + /** + * Check for clear signal from other workers + * @private + */ + async _checkClearSignal() { + // Only check for clear signal in PM2 cluster mode to avoid IPC timeouts + if (!this.isPM2) { + return + } + + try { + const signal = await this.clusterCache.get('_clear_signal') + if (signal && signal.generation > this.clearGeneration) { + // Another worker initiated a clear - reset our local state + this.clearGeneration = signal.generation + + this.allKeys.clear() + this.keyAccessTimes.clear() + this.keySizes.clear() + this.totalBytes = 0 + this.localCache.clear() + + this.stats = { + hits: 0, + misses: 0, + evictions: 0, + sets: 0, + invalidations: 0 + } + + // Delete our worker stats key immediately + const workerId = process.env.pm_id || process.pid + const statsKey = `_stats_worker_${workerId}` + await this.clusterCache.delete(statsKey) + } + } catch (err) { + // Silently fail + } + } + + /** + * Sync current worker stats to cluster cache (called by background interval) + * @private + */ + async _syncStats() { + // Only sync stats in PM2 cluster mode to avoid IPC timeouts + if (!this.isPM2) { + return + } + + // Skip sync if stats haven't changed + if (!this.statsDirty) { + return + } + + try { + const workerId = process.env.pm_id || process.pid + const statsKey = `_stats_worker_${workerId}` + await this.clusterCache.set(statsKey, { + ...this.stats, + totalBytes: this.totalBytes, + workerId, + timestamp: Date.now() + }, 10000) + // Reset dirty flag after successful sync + this.statsDirty = false + } catch (err) { + // Silently fail (keep dirty flag set to retry next interval) + } + } + + /** + * Aggregate stats from all workers (reads stats synced by background interval) + * @private + * @returns {Promise} Aggregated stats + */ + async _aggregateStats() { + // In non-PM2 mode, return local stats directly to avoid IPC timeouts + if (!this.isPM2) { + return { ...this.stats, totalBytes: this.totalBytes } + } + + try { + const keysMap = await this.clusterCache.keys() + const aggregated = { + hits: 0, + misses: 0, + sets: 0, + evictions: 0, + totalBytes: 0 + } + const processedWorkers = new Set() + + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + for (const key of instanceKeys) { + if (key.startsWith('_stats_worker_')) { + const workerId = key.replace('_stats_worker_', '') + if (processedWorkers.has(workerId)) { + continue + } + + try { + const workerStats = await this.clusterCache.get(key, undefined) + if (workerStats && typeof workerStats === 'object') { + aggregated.hits += workerStats.hits || 0 + aggregated.misses += workerStats.misses || 0 + aggregated.sets += workerStats.sets || 0 + aggregated.evictions += workerStats.evictions || 0 + aggregated.totalBytes += workerStats.totalBytes || 0 + processedWorkers.add(workerId) + } + } catch (err) { + continue + } + } + } + } + } + + return aggregated + } catch (err) { + return { ...this.stats, totalBytes: this.totalBytes } + } + } + + /** + * Format uptime duration + * @param {number} ms - Milliseconds + * @returns {string} Formatted uptime + * @private + */ + _formatUptime(ms) { + const totalSeconds = Math.floor(ms / 1000) + const totalMinutes = Math.floor(totalSeconds / 60) + const totalHours = Math.floor(totalMinutes / 60) + const days = Math.floor(totalHours / 24) + + const hours = totalHours % 24 + const minutes = totalMinutes % 60 + const seconds = totalSeconds % 60 + + let parts = [] + if (days > 0) parts.push(`${days} day${days !== 1 ? 's' : ''}`) + if (hours > 0) parts.push(`${hours} hour${hours !== 1 ? 's' : ''}`) + if (minutes > 0) parts.push(`${minutes} minute${minutes !== 1 ? 's' : ''}`) + parts.push(`${seconds} second${seconds !== 1 ? 's' : ''}`) + return parts.join(", ") + } + + /** + * Smart invalidation based on object properties + * Invalidates query/search caches that could potentially match this object + * @param {Object} obj - The created/updated object + * @param {Set} invalidatedKeys - Set to track invalidated keys (optional) + * @returns {Promise} Number of cache entries invalidated + */ + async invalidateByObject(obj, invalidatedKeys = new Set()) { + if (!obj || typeof obj !== 'object') { + return 0 + } + + let count = 0 + + // Get all query/search keys from ALL workers in the cluster by scanning cluster cache directly + let keysToCheck = [] + if (this.isPM2) { + try { + // Scan all keys directly from cluster cache (all workers) + const keysMap = await this.clusterCache.keys() + const uniqueKeys = new Set() + + // Aggregate keys from all PM2 instances + for (const instanceKeys of Object.values(keysMap)) { + if (Array.isArray(instanceKeys)) { + instanceKeys.forEach(key => { + if (key.startsWith('query:') || key.startsWith('search:') || key.startsWith('searchPhrase:')) { + uniqueKeys.add(key) + } + }) + } + } + + keysToCheck = Array.from(uniqueKeys) + } catch (err) { + keysToCheck = Array.from(this.allKeys).filter(k => + k.startsWith('query:') || k.startsWith('search:') || k.startsWith('searchPhrase:') + ) + } + } else { + keysToCheck = Array.from(this.allKeys).filter(k => + k.startsWith('query:') || k.startsWith('search:') || k.startsWith('searchPhrase:') + ) + } + + if (keysToCheck.length > 0) { + const keyTypes = {} + keysToCheck.forEach(k => { + const type = k.split(':')[0] + keyTypes[type] = (keyTypes[type] || 0) + 1 + }) + } + + const hasQueryKeys = keysToCheck.some(k => + k.startsWith('query:') || k.startsWith('search:') || k.startsWith('searchPhrase:') + ) + if (!hasQueryKeys) { + return 0 + } + + const queryKeys = keysToCheck.filter(k => + k.startsWith('query:') || k.startsWith('search:') || k.startsWith('searchPhrase:') + ) + + for (const cacheKey of keysToCheck) { + if (!cacheKey.startsWith('query:') && + !cacheKey.startsWith('search:') && + !cacheKey.startsWith('searchPhrase:')) { + continue + } + + // Skip if already invalidated + if (invalidatedKeys.has(cacheKey)) { + continue + } + + const colonIndex = cacheKey.indexOf(':') + if (colonIndex === -1) continue + + try { + const queryJson = cacheKey.substring(colonIndex + 1) + const queryParams = JSON.parse(queryJson) + + if (this.objectMatchesQuery(obj, queryParams)) { + await this.delete(cacheKey) + invalidatedKeys.add(cacheKey) + count++ + } + } catch (e) { + // Silently skip cache keys that can't be parsed or matched + continue + } + } + + return count + } + + /** + * Check if an object matches a query + * @param {Object} obj - The object to check + * @param {Object} query - The query parameters + * @returns {boolean} True if object could match this query + */ + objectMatchesQuery(obj, query) { + // Handle search/searchPhrase caches + if (query.searchText !== undefined) { + return this.objectMatchesSearchText(obj, query.searchText) + } + + // Handle query caches + return query.__cached && typeof query.__cached === 'object' + ? this.objectContainsProperties(obj, query.__cached) + : this.objectContainsProperties(obj, query) + } + + /** + * Check if an object contains all properties specified in a query + * Supports MongoDB query operators ($or, $and, $exists, $size, comparisons, etc.) + * @param {Object} obj - The object to check + * @param {Object} queryProps - The properties to match + * @returns {boolean} True if object matches the query conditions + */ + objectContainsProperties(obj, queryProps) { + for (const [key, value] of Object.entries(queryProps)) { + if (key === 'limit' || key === 'skip') continue + + if (key === '__rerum' || key === '_id') continue + if (key.startsWith('__rerum.') || key.includes('.__rerum.') || key.endsWith('.__rerum') || + key.startsWith('_id.') || key.includes('._id.') || key.endsWith('._id')) { + continue + } + + if (key.startsWith('$')) { + if (!this.evaluateOperator(obj, key, value)) { + return false + } + continue + } + + if (typeof value === 'object' && value !== null && !Array.isArray(value)) { + const hasOperators = Object.keys(value).some(k => k.startsWith('$')) + if (hasOperators) { + if (key.includes('history')) continue + const fieldValue = this.getNestedProperty(obj, key) + if (!this.evaluateFieldOperators(fieldValue, value)) { + return false + } + continue + } + } + + const objValue = this.getNestedProperty(obj, key) + if (objValue === undefined && !(key in obj)) { + return false + } + + if (typeof value !== 'object' || value === null) { + if (objValue !== value) return false + } else { + if (typeof objValue !== 'object' || !this.objectContainsProperties(objValue, value)) { + return false + } + } + } + return true + } + + /** + * Evaluate field-level operators + * @param {*} fieldValue - The actual field value + * @param {Object} operators - Object containing operators + * @returns {boolean} - True if field satisfies all operators + */ + evaluateFieldOperators(fieldValue, operators) { + for (const [op, opValue] of Object.entries(operators)) { + switch (op) { + case '$exists': + if ((fieldValue !== undefined) !== opValue) return false + break + case '$size': + if (!Array.isArray(fieldValue) || fieldValue.length !== opValue) return false + break + case '$ne': + if (fieldValue === opValue) return false + break + case '$gt': + if (!(fieldValue > opValue)) return false + break + case '$gte': + if (!(fieldValue >= opValue)) return false + break + case '$lt': + if (!(fieldValue < opValue)) return false + break + case '$lte': + if (!(fieldValue <= opValue)) return false + break + case '$in': + if (!Array.isArray(opValue)) return false + return opValue.includes(fieldValue) + default: + return true // Unknown operator - be conservative + } + } + return true + } + + /** + * Evaluate top-level MongoDB operators + * @param {Object} obj - The object + * @param {string} operator - The operator ($or, $and, etc.) + * @param {*} value - The operator value + * @returns {boolean} - True if object matches operator + */ + evaluateOperator(obj, operator, value) { + switch (operator) { + case '$or': + if (!Array.isArray(value)) return false + return value.some(condition => this.objectContainsProperties(obj, condition)) + case '$and': + if (!Array.isArray(value)) return false + return value.every(condition => this.objectContainsProperties(obj, condition)) + default: + return true // Unknown operator - be conservative + } + } + + /** + * Get nested property value using dot notation + * @param {Object} obj - The object + * @param {string} path - Property path (e.g., "user.profile.name") + * @param {number} maxDepth - Maximum recursion depth (default: 8) + * @param {number} depth - Current recursion depth (default: 0) + * @returns {*} Property value or undefined + */ + getNestedProperty(obj, path, maxDepth = 8, depth = 0) { + // Protect against excessive recursion + if (depth >= maxDepth) { + return undefined + } + + if (!path.includes('.')) { + return obj?.[path] + } + + const keys = path.split('.') + let current = obj + + for (let i = 0; i < keys.length; i++) { + const key = keys[i] + + if (current === null || current === undefined) { + return undefined + } + + // If current is an array, check if any element has the remaining path + if (Array.isArray(current)) { + const remainingPath = keys.slice(i).join('.') + // Return the first matching value from array elements + for (const item of current) { + const value = this.getNestedProperty(item, remainingPath, maxDepth, depth + 1) + if (value !== undefined) { + return value + } + } + return undefined + } + + if (typeof current !== 'object') { + return undefined + } + + current = current[key] + } + + return current + } + + /** + * Check if an Annotation object contains the search text + * Used for invalidating search/searchPhrase caches + * Normalizes diacritics to match MongoDB Atlas Search behavior + * @param {Object} obj - The object to check + * @param {string} searchText - The search text from the cache key + * @returns {boolean} True if object matches search text + */ + objectMatchesSearchText(obj, searchText) { + // Only Annotations are searchable + if (obj.type !== 'Annotation' && obj['@type'] !== 'Annotation') { + return false + } + + if (!searchText || typeof searchText !== 'string') { + return false + } + + // Normalize text: strip diacritics and lowercase to match MongoDB Atlas Search + const normalizeText = (text) => { + return text.normalize('NFD') // Decompose combined characters + .replace(/[\u0300-\u036f]/g, '') // Remove combining diacritical marks + .toLowerCase() + } + + const searchWords = normalizeText(searchText).split(/\s+/) + const annotationText = normalizeText(this.extractAnnotationText(obj)) + + // Conservative: invalidate if ANY search word appears in annotation text + return searchWords.some(word => annotationText.includes(word)) + } + + /** + * Recursively extract all searchable text from an Annotation + * Extracts from IIIF 3.0 and 2.1 Annotation body fields + * @param {Object} obj - The object to extract text from + * @param {Set} visited - Set of visited objects to prevent circular references + * @returns {string} Concatenated text from all searchable fields + */ + extractAnnotationText(obj, visited = new Set()) { + // Prevent circular references + if (!obj || typeof obj !== 'object' || visited.has(obj)) { + return '' + } + visited.add(obj) + + let text = '' + + // IIIF 3.0 Annotation fields + if (obj.body?.value) text += ' ' + obj.body.value + if (obj.bodyValue) text += ' ' + obj.bodyValue + + // IIIF 2.1 Annotation fields + if (obj.resource?.chars) text += ' ' + obj.resource.chars + if (obj.resource?.['cnt:chars']) text += ' ' + obj.resource['cnt:chars'] + + // Recursively check nested arrays (items, annotations) + if (Array.isArray(obj.items)) { + obj.items.forEach(item => { + text += ' ' + this.extractAnnotationText(item, visited) + }) + } + + if (Array.isArray(obj.annotations)) { + obj.annotations.forEach(anno => { + text += ' ' + this.extractAnnotationText(anno, visited) + }) + } + + return text + } +} + +const CACHE_MAX_LENGTH = parseInt(process.env.CACHE_MAX_LENGTH ?? 1000) +const CACHE_MAX_BYTES = parseInt(process.env.CACHE_MAX_BYTES ?? 1000000000) +const CACHE_TTL = parseInt(process.env.CACHE_TTL ?? 86400000) +const cache = new ClusterCache(CACHE_MAX_LENGTH, CACHE_MAX_BYTES, CACHE_TTL) + +export default cache diff --git a/cache/middleware.js b/cache/middleware.js new file mode 100644 index 00000000..559b5d17 --- /dev/null +++ b/cache/middleware.js @@ -0,0 +1,510 @@ +#!/usr/bin/env node + +/** + * Cache middleware for RERUM API routes + * @author thehabes + */ + +import cache from './index.js' +import { getAgentClaim } from '../controllers/utils.js' + +const sendCacheHit = (res, data, includeCacheControl = false) => { + res.set('Content-Type', 'application/json; charset=utf-8') + res.set('X-Cache', 'HIT') + // if (includeCacheControl) { + // res.set('Cache-Control', 'max-age=86400, must-revalidate') + // } + res.status(200).json(data) +} + +const setupCacheMiss = (res, cacheKey, validator) => { + res.set('X-Cache', 'MISS') + const originalJson = res.json.bind(res) + res.json = (data) => { + const validatorResult = validator(res.statusCode, data) + + if (validatorResult) { + cache.set(cacheKey, data).catch(err => { + console.error('[Cache Error] Failed to set cache key:', err.message) + }) + } + return originalJson(data) + } +} + +const extractId = (url) => url?.split('/').pop() ?? null + +/** + * Cache middleware for query endpoint + */ +const cacheQuery = async (req, res, next) => { + if (process.env.CACHING !== 'true' || req.method !== 'POST' || !req.body) { + return next() + } + + try { + const cacheKey = cache.generateKey('query', { + __cached: req.body, + limit: parseInt(req.query.limit ?? 100), + skip: parseInt(req.query.skip ?? 0) + }) + + const cachedResult = await cache.get(cacheKey) + if (cachedResult) { + sendCacheHit(res, cachedResult) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && Array.isArray(data)) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for query:', err.message) + } + + next() +} + +/** + * Cache middleware for search endpoint (word search) + */ +const cacheSearch = async (req, res, next) => { + if (process.env.CACHING !== 'true' || req.method !== 'POST' || !req.body) { + return next() + } + + try { + const cacheKey = cache.generateKey('search', { + searchText: req.body?.searchText ?? req.body, + options: req.body?.options ?? {}, + limit: parseInt(req.query.limit ?? 100), + skip: parseInt(req.query.skip ?? 0) + }) + + const cachedResult = await cache.get(cacheKey) + if (cachedResult) { + sendCacheHit(res, cachedResult) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && Array.isArray(data)) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for search:', err.message) + } + + next() +} + +/** + * Cache middleware for phrase search endpoint + */ +const cacheSearchPhrase = async (req, res, next) => { + if (process.env.CACHING !== 'true' || req.method !== 'POST' || !req.body) { + return next() + } + + try { + const cacheKey = cache.generateKey('searchPhrase', { + searchText: req.body?.searchText ?? req.body, + options: req.body?.options ?? { slop: 2 }, + limit: parseInt(req.query.limit ?? 100), + skip: parseInt(req.query.skip ?? 0) + }) + + const cachedResult = await cache.get(cacheKey) + if (cachedResult) { + sendCacheHit(res, cachedResult) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && Array.isArray(data)) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for searchPhrase:', err.message) + } + + next() +} + +/** + * Cache middleware for ID lookup endpoint + */ +const cacheId = async (req, res, next) => { + if (process.env.CACHING !== 'true' || req.method !== 'GET') { + return next() + } + + const id = req.params._id + if (!id) return next() + + try { + const cacheKey = cache.generateKey('id', id) + const cachedResult = await cache.get(cacheKey) + + if (cachedResult) { + sendCacheHit(res, cachedResult, true) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && data) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for ID lookup:', err.message) + } + + next() +} + +/** + * Cache middleware for history endpoint + */ +const cacheHistory = async (req, res, next) => { + if (process.env.CACHING !== 'true' || req.method !== 'GET') { + return next() + } + + const id = req.params._id + if (!id) return next() + + try { + const cacheKey = cache.generateKey('history', id) + const cachedResult = await cache.get(cacheKey) + + if (cachedResult) { + sendCacheHit(res, cachedResult) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && Array.isArray(data)) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for history:', err.message) + } + + next() +} + +/** + * Cache middleware for since endpoint + */ +const cacheSince = async (req, res, next) => { + if (process.env.CACHING !== 'true' || req.method !== 'GET') { + return next() + } + + const id = req.params._id + if (!id) return next() + + try { + const cacheKey = cache.generateKey('since', id) + const cachedResult = await cache.get(cacheKey) + + if (cachedResult) { + sendCacheHit(res, cachedResult) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && Array.isArray(data)) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for since:', err.message) + } + + next() +} + +/** + * Cache invalidation middleware for write operations + * Invalidates affected cache entries when objects are created, updated, or deleted + */ +const invalidateCache = (req, res, next) => { + if (process.env.CACHING !== 'true') { + return next() + } + + const originalJson = res.json.bind(res) + const originalSend = res.send.bind(res) + const originalSendStatus = res.sendStatus.bind(res) + + let invalidationPerformed = false + + const performInvalidation = async (data) => { + if (invalidationPerformed || res.statusCode < 200 || res.statusCode >= 300) { + return + } + invalidationPerformed = true + + try { + const path = req.originalUrl || req.path + + if (path.includes('/create') || path.includes('/bulkCreate')) { + const createdObjects = path.includes('/bulkCreate') + ? (Array.isArray(data) ? data : [data]) + : [data] + + const invalidatedKeys = new Set() + for (const obj of createdObjects) { + if (obj) { + await cache.invalidateByObject(obj, invalidatedKeys) + } + } + } + else if (path.includes('/update') || path.includes('/patch') || + path.includes('/set') || path.includes('/unset') || + path.includes('/overwrite') || path.includes('/bulkUpdate')) { + const previousObject = res.locals.previousObject // OLD version (what's currently in cache) + const updatedObject = data // NEW version + const objectId = updatedObject?.["@id"] ?? updatedObject?.id ?? updatedObject?._id + + if (updatedObject && objectId) { + const invalidatedKeys = new Set() + const objIdShort = extractId(objectId) + const previousId = extractId(updatedObject?.__rerum?.history?.previous) + const primeId = extractId(updatedObject?.__rerum?.history?.prime) + + if (!invalidatedKeys.has(`id:${objIdShort}`)) { + await cache.delete(`id:${objIdShort}`) + invalidatedKeys.add(`id:${objIdShort}`) + } + + if (previousId && previousId !== 'root' && !invalidatedKeys.has(`id:${previousId}`)) { + await cache.delete(`id:${previousId}`) + invalidatedKeys.add(`id:${previousId}`) + } + + // Invalidate based on PREVIOUS object (what's in cache) to match existing cached queries + if (previousObject) { + await cache.invalidateByObject(previousObject, invalidatedKeys) + } + + // Also invalidate based on NEW object in case it matches different queries + await cache.invalidateByObject(updatedObject, invalidatedKeys) + + const versionIds = [objIdShort, previousId, primeId].filter(id => id && id !== 'root').join('|') + if (versionIds) { + const regex = new RegExp(`^(history|since):(${versionIds})`) + await cache.invalidate(regex, invalidatedKeys) + } + } else { + console.error("An error occurred. Cache is falling back to the nuclear option and removing all cache.") + console.log("Bad updated object") + console.log(updatedObject) + await cache.invalidate(/^(query|search|searchPhrase|id|history|since):/) + } + } + else if (path.includes('/delete')) { + const deletedObject = res.locals.deletedObject + const objectId = deletedObject?.["@id"] ?? deletedObject?.id ?? deletedObject?._id + + if (deletedObject && objectId) { + const invalidatedKeys = new Set() + const objIdShort = extractId(objectId) + const previousId = extractId(deletedObject?.__rerum?.history?.previous) + const primeId = extractId(deletedObject?.__rerum?.history?.prime) + + if (!invalidatedKeys.has(`id:${objIdShort}`)) { + await cache.delete(`id:${objIdShort}`) + invalidatedKeys.add(`id:${objIdShort}`) + } + + if (previousId && previousId !== 'root' && !invalidatedKeys.has(`id:${previousId}`)) { + await cache.delete(`id:${previousId}`) + invalidatedKeys.add(`id:${previousId}`) + } + + await cache.invalidateByObject(deletedObject, invalidatedKeys) + + const versionIds = [objIdShort, previousId, primeId].filter(id => id && id !== 'root').join('|') + if (versionIds) { + const regex = new RegExp(`^(history|since):(${versionIds})`) + await cache.invalidate(regex, invalidatedKeys) + } + } else { + console.error("An error occurred. Cache is falling back to the nuclear option and removing all cache.") + console.log("Bad deleted object") + console.log(deletedObject) + await cache.invalidate(/^(query|search|searchPhrase|id|history|since):/) + } + } + else if (path.includes('/release')) { + const releasedObject = data + const objectId = releasedObject?.["@id"] ?? releasedObject?.id ?? releasedObject?._id + + if (releasedObject && objectId) { + const invalidatedKeys = new Set() + const objIdShort = extractId(objectId) + + // Invalidate specific ID cache + if (!invalidatedKeys.has(`id:${objIdShort}`)) { + await cache.delete(`id:${objIdShort}`) + invalidatedKeys.add(`id:${objIdShort}`) + } + + // Invalidate queries matching this object + await cache.invalidateByObject(releasedObject, invalidatedKeys) + + // Invalidate version chain caches + const previousId = extractId(releasedObject?.__rerum?.history?.previous) + const primeId = extractId(releasedObject?.__rerum?.history?.prime) + const versionIds = [objIdShort, previousId, primeId].filter(id => id && id !== 'root').join('|') + if (versionIds) { + const regex = new RegExp(`^(history|since):(${versionIds})`) + await cache.invalidate(regex, invalidatedKeys) + } + } else { + console.error("An error occurred. Cache is falling back to the nuclear option and removing all cache.") + console.log("Bad released object") + console.log(releasedObject) + await cache.invalidate(/^(query|search|searchPhrase|id|history|since):/) + } + } + } catch (err) { + console.error('[Cache Error] Cache invalidation failed, but operation will continue:', err.message) + console.error('[Cache Warning] Cache may be stale. Consider clearing cache manually.') + } + } + + res.json = (data) => { + // Fire-and-forget: Don't await invalidation to prevent hanging + performInvalidation(data).catch(err => { + console.error('[Cache Error] Background invalidation failed:', err.message) + console.error('[Cache Warning] Cache may be stale. Consider clearing cache manually.') + }) + return originalJson(data) + } + + res.send = (data) => { + // Fire-and-forget: Don't await invalidation to prevent hanging + performInvalidation(data).catch(err => { + console.error('[Cache Error] Background invalidation failed:', err.message) + console.error('[Cache Warning] Cache may be stale. Consider clearing cache manually.') + }) + return originalSend(data) + } + + res.sendStatus = (statusCode) => { + res.statusCode = statusCode + const objectForInvalidation = res.locals.deletedObject ?? { "@id": req.params._id, id: req.params._id, _id: req.params._id } + // Fire-and-forget: Don't await invalidation to prevent hanging + performInvalidation(objectForInvalidation).catch(err => { + console.error('[Cache Error] Background invalidation failed:', err.message) + console.error('[Cache Warning] Cache may be stale. Consider clearing cache manually.') + }) + return originalSendStatus(statusCode) + } + + next() +} + +/** + * Expose cache statistics at /cache/stats endpoint + */ +const cacheStats = async (req, res) => { + const includeDetails = req.query.details === 'true' + const stats = await cache.getStats() + + if (includeDetails) { + try { + stats.details = await cache.getDetails() + } catch (err) { + stats.detailsError = err.message + } + } + + res.status(200).json(stats) +} + +/** + * Clear cache at /cache/clear endpoint + */ +const cacheClear = async (req, res) => { + // Clear cache and wait for all workers to sync + await cache.clear() + + res.status(200).json({ + message: 'Cache cleared', + currentSize: 0 + }) +} + +/** + * Cache middleware for GOG fragments endpoint + */ +const cacheGogFragments = async (req, res, next) => { + if (process.env.CACHING !== 'true') { + return next() + } + + const manID = req.body?.ManuscriptWitness + if (!manID?.startsWith('http')) { + return next() + } + + try { + // Extract agent from JWT to include in cache key for proper authorization + const agent = getAgentClaim(req, next) + if (!agent) return // getAgentClaim already called next(err) + const agentID = agent.split("/").pop() + + const limit = parseInt(req.query.limit ?? 50) + const skip = parseInt(req.query.skip ?? 0) + const cacheKey = cache.generateKey('gog-fragments', { agentID, manID, limit, skip }) + + const cachedResponse = await cache.get(cacheKey) + if (cachedResponse) { + sendCacheHit(res, cachedResponse) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && Array.isArray(data)) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for GOG fragments:', err.message) + } + + next() +} + +/** + * Cache middleware for GOG glosses endpoint + */ +const cacheGogGlosses = async (req, res, next) => { + if (process.env.CACHING !== 'true') { + return next() + } + + const manID = req.body?.ManuscriptWitness + if (!manID?.startsWith('http')) { + return next() + } + + try { + // Extract agent from JWT to include in cache key for proper authorization + const agent = getAgentClaim(req, next) + if (!agent) return // getAgentClaim already called next(err) + const agentID = agent.split("/").pop() + + const limit = parseInt(req.query.limit ?? 50) + const skip = parseInt(req.query.skip ?? 0) + const cacheKey = cache.generateKey('gog-glosses', { agentID, manID, limit, skip }) + + const cachedResponse = await cache.get(cacheKey) + if (cachedResponse) { + sendCacheHit(res, cachedResponse) + return + } + + setupCacheMiss(res, cacheKey, (status, data) => status === 200 && Array.isArray(data)) + } catch (err) { + console.error('[Cache Error] Failed to get/set cache for GOG glosses:', err.message) + } + + next() +} + +export { + cacheQuery, + cacheSearch, + cacheSearchPhrase, + cacheId, + cacheHistory, + cacheSince, + cacheGogFragments, + cacheGogGlosses, + invalidateCache, + cacheStats, + cacheClear +} diff --git a/controllers/bulk.js b/controllers/bulk.js index 35e7fcb5..0b743aa5 100644 --- a/controllers/bulk.js +++ b/controllers/bulk.js @@ -3,7 +3,7 @@ /** * Bulk operations controller for RERUM operations * Handles bulk create and bulk update operations - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' diff --git a/controllers/crud.js b/controllers/crud.js index bce1179f..3aeaf897 100644 --- a/controllers/crud.js +++ b/controllers/crud.js @@ -2,7 +2,7 @@ /** * Basic CRUD operations for RERUM v1 - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' import utils from '../utils.js' @@ -41,7 +41,6 @@ const create = async function (req, res, next) { delete provided["@context"] let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, provided, rerumProp, { "_id": id }) - console.log("CREATE") try { let result = await db.insertOne(newObject) res.set(utils.configureWebAnnoHeadersFor(newObject)) @@ -49,6 +48,7 @@ const create = async function (req, res, next) { newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) res.status(201) + console.log(`RERUM v1 POST created ${newObject["@id"] ?? newObject.id} `) res.json(newObject) } catch (error) { diff --git a/controllers/delete.js b/controllers/delete.js index 403319cc..26ef9cc7 100644 --- a/controllers/delete.js +++ b/controllers/delete.js @@ -2,7 +2,7 @@ /** * Delete operations for RERUM v1 - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' import utils from '../utils.js' @@ -86,8 +86,9 @@ const deleteObj = async function(req, res, next) { next(createExpressError(err)) return } + // Store the deleted object for cache invalidation middleware to use for smart invalidation + res.locals.deletedObject = safe_original //204 to say it is deleted and there is nothing in the body - console.log("Object deleted: " + preserveID) res.sendStatus(204) return } diff --git a/controllers/gog.js b/controllers/gog.js index 67dd04de..decf58ff 100644 --- a/controllers/gog.js +++ b/controllers/gog.js @@ -3,7 +3,7 @@ /** * Gallery of Glosses (GOG) controller for RERUM operations * Handles specialized operations for the Gallery of Glosses application - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' @@ -162,7 +162,7 @@ const _gog_glosses_from_manuscript = async function (req, res, next) { const skip = parseInt(req.query.skip ?? 0) let err = { message: `` } // This request can only be made my Gallery of Glosses production apps. - if (!agentID === "61043ad4ffce846a83e700dd") { + if (agentID !== "61043ad4ffce846a83e700dd") { err = Object.assign(err, { message: `Only the Gallery of Glosses can make this request.`, status: 403 diff --git a/controllers/history.js b/controllers/history.js index f0ad0031..dd9b0f3c 100644 --- a/controllers/history.js +++ b/controllers/history.js @@ -3,7 +3,7 @@ /** * History controller for RERUM operations * Handles history, since, and HEAD request operations - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' diff --git a/controllers/overwrite.js b/controllers/overwrite.js index 284fac89..53e84248 100644 --- a/controllers/overwrite.js +++ b/controllers/overwrite.js @@ -3,7 +3,7 @@ /** * Overwrite controller for RERUM operations * Handles overwrite operations with optimistic locking - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' @@ -23,7 +23,7 @@ const overwrite = async function (req, res, next) { let agentRequestingOverwrite = getAgentClaim(req, next) const receivedID = objectReceived["@id"] ?? objectReceived.id if (receivedID) { - console.log("OVERWRITE") + console.log(`RERUM v1 PUT overwrite for ${receivedID}`) let id = parseDocumentID(receivedID) let originalObject try { @@ -62,6 +62,8 @@ const overwrite = async function (req, res, next) { const currentVersionTS = originalObject.__rerum?.isOverwritten ?? "" if (expectedVersion !== undefined && expectedVersion !== currentVersionTS) { + console.log(`RERUM v1 says 'If-Overwritten-Version' header value '${expectedVersion}' does not match current version '${currentVersionTS}'`) + console.log("overwrite 409") res.status(409) res.json({ currentVersion: originalObject @@ -92,11 +94,13 @@ const overwrite = async function (req, res, next) { //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. } // Include current version in response headers for future optimistic locking + res.locals.previousObject = originalObject // Store for cache invalidation res.set('Current-Overwritten-Version', rerumProp["__rerum"].isOverwritten) res.set(utils.configureWebAnnoHeadersFor(newObject)) newObject = idNegotiation(newObject) newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) + console.log(`PUT overwrite successful for ${newObject["@id"] ?? newObject.id}`) res.json(newObject) return } diff --git a/controllers/patchSet.js b/controllers/patchSet.js index 85e97af8..0e365fd6 100644 --- a/controllers/patchSet.js +++ b/controllers/patchSet.js @@ -3,7 +3,7 @@ /** * PATCH Set controller for RERUM operations * Handles PATCH operations that add new keys only - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' @@ -89,8 +89,9 @@ const patchSet = async function (req, res, next) { let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, patchedObject, rerumProp, { "_id": id }) try { let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { + if (await alterHistoryNext(originalObject, newObject["@id"])) { //Success, the original object has been updated. + res.locals.previousObject = originalObject // Store for cache invalidation res.set(utils.configureWebAnnoHeadersFor(newObject)) newObject = idNegotiation(newObject) newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) diff --git a/controllers/patchUnset.js b/controllers/patchUnset.js index c4cf53d7..c5689c58 100644 --- a/controllers/patchUnset.js +++ b/controllers/patchUnset.js @@ -3,7 +3,7 @@ /** * PATCH Unset controller for RERUM operations * Handles PATCH operations that remove keys - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' @@ -91,11 +91,11 @@ const patchUnset = async function (req, res, next) { if(_contextid(patchedObject["@context"])) delete patchedObject.id delete patchedObject["@context"] let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, patchedObject, rerumProp, { "_id": id }) - console.log("PATCH UNSET") try { let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { + if (await alterHistoryNext(originalObject, newObject["@id"])) { //Success, the original object has been updated. + res.locals.previousObject = originalObject // Store for cache invalidation res.set(utils.configureWebAnnoHeadersFor(newObject)) newObject = idNegotiation(newObject) newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) diff --git a/controllers/patchUpdate.js b/controllers/patchUpdate.js index c7271bbb..e89845dc 100644 --- a/controllers/patchUpdate.js +++ b/controllers/patchUpdate.js @@ -3,7 +3,7 @@ /** * PATCH Update controller for RERUM operations * Handles PATCH updates that modify existing keys - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' @@ -90,11 +90,11 @@ const patchUpdate = async function (req, res, next) { if(_contextid(patchedObject["@context"])) delete patchedObject.id delete patchedObject["@context"] let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, patchedObject, rerumProp, { "_id": id }) - console.log("PATCH UPDATE") try { let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { + if (await alterHistoryNext(originalObject, newObject["@id"])) { //Success, the original object has been updated. + res.locals.previousObject = originalObject // Store for cache invalidation res.set(utils.configureWebAnnoHeadersFor(newObject)) newObject = idNegotiation(newObject) newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) diff --git a/controllers/putUpdate.js b/controllers/putUpdate.js index 177507ac..473a03c8 100644 --- a/controllers/putUpdate.js +++ b/controllers/putUpdate.js @@ -3,7 +3,7 @@ /** * PUT Update controller for RERUM operations * Handles PUT updates and import operations - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' @@ -20,6 +20,7 @@ import { _contextid, ObjectID, createExpressError, getAgentClaim, parseDocumentI * Respond RESTfully * */ const putUpdate = async function (req, res, next) { + console.log("PUT /v1/api/update in RERUM") let err = { message: `` } res.set("Content-Type", "application/json; charset=utf-8") let objectReceived = JSON.parse(JSON.stringify(req.body)) @@ -52,6 +53,7 @@ const putUpdate = async function (req, res, next) { }) } else { + console.log("/v1/api/update use original object") id = ObjectID() let context = objectReceived["@context"] ? { "@context": objectReceived["@context"] } : {} let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, originalObject, true, false)["__rerum"] } @@ -61,21 +63,23 @@ const putUpdate = async function (req, res, next) { // id is also protected in this case, so it can't be set. if(_contextid(objectReceived["@context"])) delete objectReceived.id delete objectReceived["@context"] - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, objectReceived, rerumProp, { "_id": id }) - console.log("UPDATE") try { + console.log("/v1/api/update insert new object") let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { + if (await alterHistoryNext(originalObject, newObject["@id"])) { //Success, the original object has been updated. + res.locals.previousObject = originalObject // Store for cache invalidation res.set(utils.configureWebAnnoHeadersFor(newObject)) newObject = idNegotiation(newObject) newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) + console.log(`RERUM v1 PUT update for ${idReceived} successful. It is now ${newObject["@id"] ?? newObject.id}`) res.status(200) res.json(newObject) return } + console.log("/v1/api/update err 1") err = Object.assign(err, { message: `Unable to alter the history next of the originating object. The history tree may be broken. See ${originalObject["@id"]}. ${err.message}`, status: 500 @@ -83,6 +87,7 @@ const putUpdate = async function (req, res, next) { } catch (error) { //WriteError or WriteConcernError + console.log("/v1/api/update error 2") next(createExpressError(error)) return } @@ -90,11 +95,13 @@ const putUpdate = async function (req, res, next) { } else { //The http module will not detect this as a 400 on its own + console.log("/v1/api/update err 3") err = Object.assign(err, { message: `Object in request body must have an 'id' or '@id' property. ${err.message}`, status: 400 }) } + console.log("/v1/api/update err 4") next(createExpressError(err)) } @@ -122,7 +129,6 @@ async function _import(req, res, next) { delete objectReceived["@context"] let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, objectReceived, rerumProp, { "_id": id }) - console.log("IMPORT") try { let result = await db.insertOne(newObject) res.set(utils.configureWebAnnoHeadersFor(newObject)) diff --git a/controllers/release.js b/controllers/release.js index 84b1fa15..44cd3e9b 100644 --- a/controllers/release.js +++ b/controllers/release.js @@ -3,7 +3,7 @@ /** * Release controller for RERUM operations * Handles release operations and associated tree management - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' @@ -71,7 +71,6 @@ const release = async function (req, res, next) { next(createExpressError(err)) return } - console.log("RELEASE") if (null !== originalObject){ safe_original["__rerum"].isReleased = new Date(Date.now()).toISOString().replace("Z", "") safe_original["__rerum"].releases.replaces = previousReleasedID @@ -108,7 +107,6 @@ const release = async function (req, res, next) { //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. } res.set(utils.configureWebAnnoHeadersFor(releasedObject)) - console.log(releasedObject._id+" has been released") releasedObject = idNegotiation(releasedObject) releasedObject.new_obj_state = JSON.parse(JSON.stringify(releasedObject)) res.location(releasedObject[_contextid(releasedObject["@context"]) ? "id":"@id"]) diff --git a/controllers/update.js b/controllers/update.js index 88dec30d..8da80104 100644 --- a/controllers/update.js +++ b/controllers/update.js @@ -3,7 +3,7 @@ /** * Update controller aggregator for RERUM operations * This file imports and re-exports all update operations - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ // Import individual update operations diff --git a/controllers/utils.js b/controllers/utils.js index 9de0c011..36f7918d 100644 --- a/controllers/utils.js +++ b/controllers/utils.js @@ -2,7 +2,7 @@ /** * Utility functions for RERUM controllers - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ import { newID, isValidID, db } from '../database/index.js' import utils from '../utils.js' @@ -179,12 +179,17 @@ function parseDocumentID(atID){ */ async function alterHistoryNext(objToUpdate, newNextID) { //We can keep this real short if we trust the objects sent into here. I think these are private helper functions, and so we can. - if(objToUpdate.__rerum.history.next.indexOf(newNextID) === -1){ - objToUpdate.__rerum.history.next.push(newNextID) - let result = await db.replaceOne({ "_id": objToUpdate["_id"] }, objToUpdate) - return result.modifiedCount > 0 + try { + if(objToUpdate.__rerum.history.next.indexOf(newNextID) === -1){ + objToUpdate.__rerum.history.next.push(newNextID) + let result = await db.replaceOne({ "_id": objToUpdate["_id"] }, objToUpdate) + return result.modifiedCount > 0 + } + return true + } catch (error) { + console.error('alterHistoryNext error:', error) + throw error // Re-throw to be caught by controller's try/catch } - return true } /** diff --git a/db-controller.js b/db-controller.js index 07aa6f65..43ee5201 100644 --- a/db-controller.js +++ b/db-controller.js @@ -3,7 +3,7 @@ /** * Main controller aggregating all RERUM operations * This file now imports from organized controller modules - * @author Claude Sonnet 4, cubap, thehabes + * @author cubap, thehabes */ // Import controller modules diff --git a/db-controller.js.backup b/db-controller.js.backup deleted file mode 100644 index 8e7ed7b5..00000000 --- a/db-controller.js.backup +++ /dev/null @@ -1,2376 +0,0 @@ -#!/usr/bin/env node - -/** - * This module is used to connect to a mongodb instance and perform the necessary unit actions - * to complete an API action. The implementation is intended to be a RESTful API. - * Known database misteps, like NOT FOUND, should pass a RESTful message downstream. - * - * It is used as middleware and so has access to the http module request and response objects, as well as next() - * - * @author thehabes - */ -import { newID, isValidID, db } from './database/index.js' -import utils from './utils.js' -const ObjectID = newID - -// Handle index actions -const index = function (req, res, next) { - res.json({ - status: "connected", - message: "Not sure what to do" - }) -} - -/** - * Check if a @context value contains a known @id-id mapping context - * - * @param contextInput An Array of string URIs or a string URI. - * @return A boolean - */ -function _contextid(contextInput) { - if(!Array.isArray(contextInput) && typeof contextInput !== "string") return false - let bool = false - let contextURI = typeof contextInput === "string" ? contextInput : "unknown" - const contextCheck = (c) => contextURI.includes(c) - const knownContexts = [ - "store.rerum.io/v1/context.json", - "iiif.io/api/presentation/3/context.json", - "www.w3.org/ns/anno.jsonld", - "www.w3.org/ns/oa.jsonld" - ] - if(Array.isArray(contextInput)) { - for(const c of contextInput) { - contextURI = c - bool = knownContexts.some(contextCheck) - if(bool) break - } - } - else { - bool = knownContexts.some(contextCheck) - } - return bool -} - -/** - * Modify the JSON of an Express response body by performing _id, id, and @id negotiation. - * This ensures the JSON has the appropriate _id, id, and/or @id value on the way out to the client. - * Make sure the first property is @context and the second property is the negotiated @id/id. - * - * @param resBody A JSON object representing an Express response body - * @return JSON with the appropriate modifications around the 'id;, '@id', and '_id' properties. - */ -const idNegotiation = function (resBody) { - if(!resBody) return - const _id = resBody._id - delete resBody._id - if(!resBody["@context"]) return resBody - let modifiedResBody = JSON.parse(JSON.stringify(resBody)) - const context = { "@context": resBody["@context"] } - if(_contextid(resBody["@context"])) { - delete resBody["@id"] - delete resBody["@context"] - modifiedResBody = Object.assign(context, { "id": process.env.RERUM_ID_PREFIX + _id }, resBody) - } - return modifiedResBody -} - -/** - * Check if an object with the proposed custom _id already exists. - * If so, this is a 409 conflict. It will be detected downstream if we continue one by returning the proposed Slug. - * We can avoid the 409 conflict downstream and return a newly minted ObjectID.toHextString() - * We error out right here with next(createExpressError({"code" : 11000})) - * @param slug_id A proposed _id. - * - */ -const generateSlugId = async function(slug_id="", next){ - let slug_return = {"slug_id":"", "code":0} - let slug - if(slug_id){ - slug_return.slug_id = slug_id - try { - slug = await db.findOne({"$or":[{"_id": slug_id}, {"__rerum.slug": slug_id}]}) - } - catch (error) { - //A DB problem, so we could not check. Assume it's usable and let errors happen downstream. - console.error(error) - //slug_return.code = error.code - } - if(null !== slug){ - //This already exist, give the mongodb error code. - slug_return.code = 11000 - } - } - return slug_return -} - - -/** - * Create a new Linked Open Data object in RERUM v1. - * Order the properties to preference @context and @id. Put __rerum and _id last. - * Respond RESTfully - * */ -const create = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let slug = "" - if(req.get("Slug")){ - let slug_json = await generateSlugId(req.get("Slug"), next) - if(slug_json.code){ - next(createExpressError(slug_json)) - return - } - else{ - slug = slug_json.slug_id - } - } - - let generatorAgent = getAgentClaim(req, next) - let context = req.body["@context"] ? { "@context": req.body["@context"] } : {} - let provided = JSON.parse(JSON.stringify(req.body)) - let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, provided, false, false)["__rerum"] } - rerumProp.__rerum.slug = slug - const providedID = provided._id - const id = isValidID(providedID) ? providedID : ObjectID() - delete provided["__rerum"] - delete provided["@id"] - // id is also protected in this case, so it can't be set. - if(_contextid(provided["@context"])) delete provided.id - delete provided["@context"] - - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, provided, rerumProp, { "_id": id }) - console.log("CREATE") - try { - let result = await db.insertOne(newObject) - res.set(utils.configureWebAnnoHeadersFor(newObject)) - newObject = idNegotiation(newObject) - newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) - res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) - res.status(201) - res.json(newObject) - } - catch (error) { - //MongoServerError from the client has the following properties: index, code, keyPattern, keyValue - next(createExpressError(error)) - } -} - -/** - * Mark an object as deleted in the database. - * Support /v1/delete/{id}. Note this is not v1/api/delete, that is not possible (XHR does not support DELETE with body) - * Note /v1/delete/{blank} does not route here. It routes to the generic 404. - * Respond RESTfully - * - * The user may be trying to call /delete and pass in the obj in the body. XHR does not support bodies in delete. - * If there is no id parameter, this is a 400 - * - * If there is an id parameter, we ignore body, and continue with that id - * - * */ -const deleteObj = async function(req, res, next) { - let id - let err = { message: `` } - try { - id = req.params["_id"] ?? parseDocumentID(JSON.parse(JSON.stringify(req.body))["@id"]) - } catch(error){ - next(createExpressError(error)) - } - let agentRequestingDelete = getAgentClaim(req, next) - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null !== originalObject) { - let safe_original = JSON.parse(JSON.stringify(originalObject)) - if (utils.isDeleted(safe_original)) { - err = Object.assign(err, { - message: `The object you are trying to delete is already deleted. ${err.message}`, - status: 403 - }) - } - else if (utils.isReleased(safe_original)) { - err = Object.assign(err, { - message: `The object you are trying to delete is released. Fork to make changes. ${err.message}`, - status: 403 - }) - } - else if (!utils.isGenerator(safe_original, agentRequestingDelete)) { - err = Object.assign(err, { - message: `You are not the generating agent for this object and so are not authorized to delete it. ${err.message}`, - status: 401 - }) - } - if (err.status) { - next(createExpressError(err)) - return - } - let preserveID = safe_original["@id"] - let deletedFlag = {} //The __deleted flag is a JSONObject - deletedFlag["object"] = JSON.parse(JSON.stringify(originalObject)) - deletedFlag["deletor"] = agentRequestingDelete - deletedFlag["time"] = new Date(Date.now()).toISOString().replace("Z", "") - let deletedObject = { - "@id": preserveID, - "__deleted": deletedFlag, - "_id": id - } - if (healHistoryTree(safe_original)) { - let result - try { - result = await db.replaceOne({ "_id": originalObject["_id"] }, deletedObject) - } catch (error) { - next(createExpressError(error)) - return - } - if (result.modifiedCount === 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - err.message = "The original object was not replaced with the deleted object in the database." - err.status = 500 - next(createExpressError(err)) - return - } - //204 to say it is deleted and there is nothing in the body - console.log("Object deleted: " + preserveID); - res.sendStatus(204) - return - } - //Not sure we can get here, as healHistoryTree might throw and error. - err.message = "The history tree for the object being deleted could not be mended." - err.status = 500 - next(createExpressError(err)) - return - } - err.message = "No object with this id could be found in RERUM. Cannot delete." - err.status = 404 - next(createExpressError(err)) -} - -/** - * Replace some existing object in MongoDB with the JSON object in the request body. - * Order the properties to preference @context and @id. Put __rerum and _id last. - * This also detects an IMPORT situation. If the object @id or id is not from RERUM - * then trigger the internal _import function. - * - * Track History - * Respond RESTfully - * */ -const putUpdate = async function (req, res, next) { - let err = { message: `` } - res.set("Content-Type", "application/json; charset=utf-8") - let objectReceived = JSON.parse(JSON.stringify(req.body)) - let generatorAgent = getAgentClaim(req, next) - const idReceived = objectReceived["@id"] ?? objectReceived.id - if (idReceived) { - if(!idReceived.includes(process.env.RERUM_ID_PREFIX)){ - //This is not a regular update. This object needs to be imported, it isn't in RERUM yet. - return _import(req, res, next) - } - let id = parseDocumentID(idReceived) - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === originalObject) { - //This object is not found. - err = Object.assign(err, { - message: `Object not in RERUM even though it has a RERUM URI. Check if it is an authentic RERUM object. ${err.message}`, - status: 404 - }) - } - else if (utils.isDeleted(originalObject)) { - err = Object.assign(err, { - message: `The object you are trying to update is deleted. ${err.message}`, - status: 403 - }) - } - else { - id = ObjectID() - let context = objectReceived["@context"] ? { "@context": objectReceived["@context"] } : {} - let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, originalObject, true, false)["__rerum"] } - delete objectReceived["__rerum"] - delete objectReceived["_id"] - delete objectReceived["@id"] - // id is also protected in this case, so it can't be set. - if(_contextid(objectReceived["@context"])) delete objectReceived.id - delete objectReceived["@context"] - - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, objectReceived, rerumProp, { "_id": id }) - console.log("UPDATE") - try { - let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { - //Success, the original object has been updated. - res.set(utils.configureWebAnnoHeadersFor(newObject)) - newObject = idNegotiation(newObject) - newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) - res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(newObject) - return - } - err = Object.assign(err, { - message: `Unable to alter the history next of the originating object. The history tree may be broken. See ${originalObject["@id"]}. ${err.message}`, - status: 500 - }) - } - catch (error) { - //WriteError or WriteConcernError - next(createExpressError(error)) - return - } - } - } - else { - //The http module will not detect this as a 400 on its own - err = Object.assign(err, { - message: `Object in request body must have an 'id' or '@id' property. ${err.message}`, - status: 400 - }) - } - next(createExpressError(err)) -} - -/** - * RERUM was given a PUT update request for an object whose @id was not from the RERUM API. - * This PUT update request is instead considered internally as an "import". - * We will create this object in RERUM, but its @id will be a RERUM URI. - * __rerum.history.previous will point to the origial URI from the @id. - * - * If this functionality were to be offered as its own endpoint, it would be a specialized POST create. - * */ -async function _import(req, res, next) { - let err = { message: `` } - res.set("Content-Type", "application/json; charset=utf-8") - let objectReceived = JSON.parse(JSON.stringify(req.body)) - let generatorAgent = getAgentClaim(req, next) - const id = ObjectID() - let context = objectReceived["@context"] ? { "@context": objectReceived["@context"] } : {} - let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, objectReceived, false, true)["__rerum"] } - delete objectReceived["__rerum"] - delete objectReceived["_id"] - delete objectReceived["@id"] - // id is also protected in this case, so it can't be set. - if(_contextid(objectReceived["@context"])) delete objectReceived.id - delete objectReceived["@context"] - - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, objectReceived, rerumProp, { "_id": id }) - console.log("IMPORT") - try { - let result = await db.insertOne(newObject) - res.set(utils.configureWebAnnoHeadersFor(newObject)) - newObject = idNegotiation(newObject) - newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) - res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(newObject) - } - catch (error) { - //MongoServerError from the client has the following properties: index, code, keyPattern, keyValue - next(createExpressError(error)) - } -} - -/** - * Update some existing object in MongoDB with the JSON object in the request body. - * Note that only keys that exist on the object will be respected. This cannot set or unset keys. - * If there is nothing to PATCH, return a 200 with the object in the response body. - * Order the properties to preference @context and @id. Put __rerum and _id last. - * Track History - * Respond RESTfully - * */ -const patchUpdate = async function (req, res, next) { - let err = { message: `` } - res.set("Content-Type", "application/json; charset=utf-8") - let objectReceived = JSON.parse(JSON.stringify(req.body)) - let patchedObject = {} - let generatorAgent = getAgentClaim(req, next) - const receivedID = objectReceived["@id"] ?? objectReceived.id - if (receivedID) { - let id = parseDocumentID(receivedID) - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === originalObject) { - //This object is not in RERUM, they want to import it. Do that automatically. - //updateExternalObject(objectReceived) - err = Object.assign(err, { - message: `This object is not from RERUM and will need imported. This is not automated yet. You can make a new object with create. ${err.message}`, - status: 501 - }) - } - else if (utils.isDeleted(originalObject)) { - err = Object.assign(err, { - message: `The object you are trying to update is deleted. ${err.message}`, - status: 403 - }) - } - else { - patchedObject = JSON.parse(JSON.stringify(originalObject)) - delete objectReceived.__rerum //can't patch this - delete objectReceived._id //can't patch this - delete objectReceived["@id"] //can't patch this - // id is also protected in this case, so it can't be set. - if(_contextid(objectReceived["@context"])) delete objectReceived.id - //A patch only alters existing keys. Remove non-existent keys from the object received in the request body. - for (let k in objectReceived) { - if (originalObject.hasOwnProperty(k)) { - if (objectReceived[k] === null) { - delete patchedObject[k] - } - else { - patchedObject[k] = objectReceived[k] - } - } - else { - //Note the possibility of notifying the user that these keys were not processed. - delete objectReceived[k] - } - } - if (Object.keys(objectReceived).length === 0) { - //Then you aren't actually changing anything...only @id came through - //Just hand back the object. The resulting of patching nothing is the object unchanged. - res.set(utils.configureWebAnnoHeadersFor(originalObject)) - originalObject = idNegotiation(originalObject) - originalObject.new_obj_state = JSON.parse(JSON.stringify(originalObject)) - res.location(originalObject[_contextid(originalObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(originalObject) - return - } - const id = ObjectID() - let context = patchedObject["@context"] ? { "@context": patchedObject["@context"] } : {} - let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, originalObject, true, false)["__rerum"] } - delete patchedObject["__rerum"] - delete patchedObject["_id"] - delete patchedObject["@id"] - // id is also protected in this case, so it can't be set. - if(_contextid(patchedObject["@context"])) delete patchedObject.id - delete patchedObject["@context"] - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, patchedObject, rerumProp, { "_id": id }) - console.log("PATCH UPDATE") - try { - let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { - //Success, the original object has been updated. - res.set(utils.configureWebAnnoHeadersFor(newObject)) - newObject = idNegotiation(newObject) - newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) - res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(newObject) - return - } - err = Object.assign(err, { - message: `Unable to alter the history next of the originating object. The history tree may be broken. See ${originalObject["@id"]}. ${err.message}`, - status: 500 - }) - } - catch (error) { - //WriteError or WriteConcernError - next(createExpressError(error)) - return - } - } - } - else { - //The http module will not detect this as a 400 on its own - err = Object.assign(err, { - message: `Object in request body must have the property '@id' or 'id'. ${err.message}`, - status: 400 - }) - } - next(createExpressError(err)) -} - -/** - * Update some existing object in MongoDB by adding the keys from the JSON object in the request body. - * Note that if a key on the request object matches a key on the object in MongoDB, that key will be ignored. - * Order the properties to preference @context and @id. Put __rerum and _id last. - * This cannot change or unset existing keys. - * Track History - * Respond RESTfully - * */ -const patchSet = async function (req, res, next) { - let err = { message: `` } - res.set("Content-Type", "application/json; charset=utf-8") - let objectReceived = JSON.parse(JSON.stringify(req.body)) - let originalContext - let patchedObject = {} - let generatorAgent = getAgentClaim(req, next) - const receivedID = objectReceived["@id"] ?? objectReceived.id - if (receivedID) { - let id = parseDocumentID(receivedID) - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === originalObject) { - //This object is not in RERUM, they want to import it. Do that automatically. - //updateExternalObject(objectReceived) - err = Object.assign(err, { - message: `This object is not from RERUM and will need imported. This is not automated yet. You can make a new object with create. ${err.message}`, - status: 501 - }) - } - else if (utils.isDeleted(originalObject)) { - err = Object.assign(err, { - message: `The object you are trying to update is deleted. ${err.message}`, - status: 403 - }) - } - else { - patchedObject = JSON.parse(JSON.stringify(originalObject)) - if(_contextid(originalObject["@context"])) { - // If the original object has a context that needs id protected, make sure you don't set it. - delete objectReceived.id - delete originalObject.id - delete patchedObject.id - } - //A set only adds new keys. If the original object had the key, it is ignored here. - delete objectReceived._id - for (let k in objectReceived) { - if (originalObject.hasOwnProperty(k)) { - //Note the possibility of notifying the user that these keys were not processed. - delete objectReceived[k] - } - else { - patchedObject[k] = objectReceived[k] - } - } - if (Object.keys(objectReceived).length === 0) { - //Then you aren't actually changing anything...there are no new properties - //Just hand back the object. The resulting of setting nothing is the object from the request body. - res.set(utils.configureWebAnnoHeadersFor(originalObject)) - originalObject = idNegotiation(originalObject) - originalObject.new_obj_state = JSON.parse(JSON.stringify(originalObject)) - res.location(originalObject[_contextid(originalObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(originalObject) - return - } - const id = ObjectID() - let context = patchedObject["@context"] ? { "@context": patchedObject["@context"] } : {} - let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, originalObject, true, false)["__rerum"] } - delete patchedObject["__rerum"] - delete patchedObject["_id"] - delete patchedObject["@id"] - delete patchedObject["@context"] - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, patchedObject, rerumProp, { "_id": id }) - try { - let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { - //Success, the original object has been updated. - res.set(utils.configureWebAnnoHeadersFor(newObject)) - newObject = idNegotiation(newObject) - newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) - res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(newObject) - return - } - err = Object.assign(err, { - message: `Unable to alter the history next of the originating object. The history tree may be broken. See ${originalObject["@id"]}. ${err.message}`, - status: 500 - }) - } - catch (error) { - //WriteError or WriteConcernError - next(createExpressError(error)) - return - } - } - } - else { - //The http module will not detect this as a 400 on its own - err = Object.assign(err, { - message: `Object in request body must have the property '@id' or 'id'. ${err.message}`, - status: 400 - }) - } - next(createExpressError(err)) -} - -/** - * Update some existing object in MongoDB by removing the keys noted in the JSON object in the request body. - * Note that if a key on the request object does not match a key on the object in MongoDB, that key will be ignored. - * Order the properties to preference @context and @id. Put __rerum and _id last. - * This cannot change existing keys or set new keys. - * Track History - * Respond RESTfully - * */ -const patchUnset = async function (req, res, next) { - let err = { message: `` } - res.set("Content-Type", "application/json; charset=utf-8") - let objectReceived = JSON.parse(JSON.stringify(req.body)) - let patchedObject = {} - let generatorAgent = getAgentClaim(req, next) - const receivedID = objectReceived["@id"] ?? objectReceived.id - if (receivedID) { - let id = parseDocumentID(receivedID) - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === originalObject) { - //This object is not in RERUM, they want to import it. Do that automatically. - //updateExternalObject(objectReceived) - err = Object.assign(err, { - message: `This object is not from RERUM and will need imported. This is not automated yet. You can make a new object with create. ${err.message}`, - status: 501 - }) - } - else if (utils.isDeleted(originalObject)) { - err = Object.assign(err, { - message: `The object you are trying to update is deleted. ${err.message}`, - status: 403 - }) - } - else { - patchedObject = JSON.parse(JSON.stringify(originalObject)) - delete objectReceived._id //can't unset this - delete objectReceived.__rerum //can't unset this - delete objectReceived["@id"] //can't unset this - // id is also protected in this case, so it can't be unset. - if(_contextid(originalObject["@context"])) delete objectReceived.id - - /** - * unset does not alter an existing key. It removes an existing key. - * The request payload had {key:null} to flag keys to be removed. - * Everything else is ignored. - */ - for (let k in objectReceived) { - if (originalObject.hasOwnProperty(k) && objectReceived[k] === null) { - delete patchedObject[k] - } - else { - //Note the possibility of notifying the user that these keys were not processed. - delete objectReceived[k] - } - } - if (Object.keys(objectReceived).length === 0) { - //Then you aren't actually changing anything...no properties in the request body were removed from the original object. - //Just hand back the object. The resulting of unsetting nothing is the object. - res.set(utils.configureWebAnnoHeadersFor(originalObject)) - originalObject = idNegotiation(originalObject) - originalObject.new_obj_state = JSON.parse(JSON.stringify(originalObject)) - res.location(originalObject[_contextid(originalObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(originalObject) - return - } - const id = ObjectID() - let context = patchedObject["@context"] ? { "@context": patchedObject["@context"] } : {} - let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, originalObject, true, false)["__rerum"] } - delete patchedObject["__rerum"] - delete patchedObject["_id"] - delete patchedObject["@id"] - // id is also protected in this case, so it can't be set. - if(_contextid(patchedObject["@context"])) delete patchedObject.id - delete patchedObject["@context"] - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, patchedObject, rerumProp, { "_id": id }) - console.log("PATCH UNSET") - try { - let result = await db.insertOne(newObject) - if (alterHistoryNext(originalObject, newObject["@id"])) { - //Success, the original object has been updated. - res.set(utils.configureWebAnnoHeadersFor(newObject)) - newObject = idNegotiation(newObject) - newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) - res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) - res.status(200) - res.json(newObject) - return - } - err = Object.assign(err, { - message: `Unable to alter the history next of the originating object. The history tree may be broken. See ${originalObject["@id"]}. ${err.message}`, - status: 500 - }) - } - catch (error) { - //WriteError or WriteConcernError - next(createExpressError(error)) - return - } - } - } - else { - //The http module will not detect this as a 400 on its own - err = Object.assign(err, { - message: `Object in request body must have the property '@id' or 'id'. ${err.message}`, - status: 400 - }) - } - next(createExpressError(err)) -} - -/** - * Replace some existing object in MongoDB with the JSON object in the request body. - * Order the properties to preference @context and @id. Put __rerum and _id last. - * DO NOT Track History - * Respond RESTfully - * */ -const overwrite = async function (req, res, next) { - let err = { message: `` } - res.set("Content-Type", "application/json; charset=utf-8") - let objectReceived = JSON.parse(JSON.stringify(req.body)) - let agentRequestingOverwrite = getAgentClaim(req, next) - const receivedID = objectReceived["@id"] ?? objectReceived.id - if (receivedID) { - console.log("OVERWRITE") - let id = parseDocumentID(receivedID) - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === originalObject) { - err = Object.assign(err, { - message: `No object with this id could be found in RERUM. Cannot overwrite. ${err.message}`, - status: 404 - }) - } - else if (utils.isDeleted(originalObject)) { - err = Object.assign(err, { - message: `The object you are trying to overwrite is deleted. ${err.message}`, - status: 403 - }) - } - else if (utils.isReleased(originalObject)) { - err = Object.assign(err, { - message: `The object you are trying to overwrite is released. Fork with /update to make changes. ${err.message}`, - status: 403 - }) - } - else if (!utils.isGenerator(originalObject, agentRequestingOverwrite)) { - err = Object.assign(err, { - message: `You are not the generating agent for this object. You cannot overwrite it. Fork with /update to make changes. ${err.message}`, - status: 401 - }) - } - else { - // Optimistic locking check - no expected version is a brutal overwrite - const expectedVersion = req.get('If-Overwritten-Version') ?? req.body.__rerum?.isOverwritten - const currentVersionTS = originalObject.__rerum?.isOverwritten ?? "" - - if (expectedVersion !== undefined && expectedVersion !== currentVersionTS) { - res.status(409) - res.json({ - currentVersion: originalObject - }) - return - } - else { - let context = objectReceived["@context"] ? { "@context": objectReceived["@context"] } : {} - let rerumProp = { "__rerum": originalObject["__rerum"] } - rerumProp["__rerum"].isOverwritten = new Date(Date.now()).toISOString().replace("Z", "") - const id = originalObject["_id"] - //Get rid of them so we can enforce the order - delete objectReceived["@id"] - delete objectReceived["_id"] - delete objectReceived["__rerum"] - // id is also protected in this case, so it can't be set. - if(_contextid(objectReceived["@context"])) delete objectReceived.id - delete objectReceived["@context"] - let newObject = Object.assign(context, { "@id": originalObject["@id"] }, objectReceived, rerumProp, { "_id": id }) - let result - try { - result = await db.replaceOne({ "_id": id }, newObject) - } catch (error) { - next(createExpressError(error)) - return - } - if (result.modifiedCount == 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - } - // Include current version in response headers for future optimistic locking - res.set('Current-Overwritten-Version', rerumProp["__rerum"].isOverwritten) - res.set(utils.configureWebAnnoHeadersFor(newObject)) - newObject = idNegotiation(newObject) - newObject.new_obj_state = JSON.parse(JSON.stringify(newObject)) - res.location(newObject[_contextid(newObject["@context"]) ? "id":"@id"]) - res.json(newObject) - return - } - } - } - else { - //This is a custom one, the http module will not detect this as a 400 on its own - err = Object.assign(err, { - message: `Object in request body must have the property '@id' or 'id'. ${err.message}`, - status: 400 - }) - } - next(createExpressError(err)) -} - -/** - * Public facing servlet to release an existing RERUM object. This will not - * perform history tree updates, but rather releases tree updates. - * (AKA a new node in the history tree is NOT CREATED here.) - * - * The id is on the URL already like, ?_id=. - * - * The user may request the release resource take on a new Slug id. They can do this - * with the HTTP Request header 'Slug' or via a url parameter like ?slug= - */ -const release = async function (req, res, next) { - let agentRequestingRelease = getAgentClaim(req, next) - let id = req.params["_id"] - let slug = "" - let err = {"message":""} - let treeHealed = false - if(req.get("Slug")){ - let slug_json = await generateSlugId(req.get("Slug"), next) - if(slug_json.code){ - next(createExpressError(slug_json)) - return - } - else{ - slug = slug_json.slug_id - } - } - if (id){ - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } - catch (error) { - next(createExpressError(error)) - return - } - let safe_original = JSON.parse(JSON.stringify(originalObject)) - let previousReleasedID = safe_original.__rerum.releases.previous - let nextReleases = safe_original.__rerum.releases.next - - if (utils.isDeleted(safe_original)) { - err = Object.assign(err, { - message: `The object you are trying to release is deleted. ${err.message}`, - status: 403 - }) - } - if (utils.isReleased(safe_original)) { - err = Object.assign(err, { - message: `The object you are trying to release is already released. ${err.message}`, - status: 403 - }) - } - if (!utils.isGenerator(safe_original, agentRequestingRelease)) { - err = Object.assign(err, { - message: `You are not the generating agent for this object. You cannot release it. ${err.message}`, - status: 401 - }) - } - if (err.status) { - next(createExpressError(err)) - return - } - console.log("RELEASE") - if (null !== originalObject){ - safe_original["__rerum"].isReleased = new Date(Date.now()).toISOString().replace("Z", "") - safe_original["__rerum"].releases.replaces = previousReleasedID - safe_original["__rerum"].slug = slug - if (previousReleasedID !== "") { - // A releases tree exists and an ancestral object is being released. - treeHealed = await healReleasesTree(safe_original) - } - else { - // There was no releases previous value. - if (nextReleases.length > 0) { - // The release tree has been established and a descendant object is now being released. - treeHealed = await healReleasesTree(safe_original) - } - else { - // The release tree has not been established - treeHealed = await establishReleasesTree(safe_original) - } - } - if (treeHealed) { - // If the tree was established/healed - // perform the update to isReleased of the object being released. Its - // releases.next[] and releases.previous are already correct. - let releasedObject = safe_original - let result - try { - result = await db.replaceOne({ "_id": id }, releasedObject) - } - catch (error) { - next(createExpressError(error)) - return - } - if (result.modifiedCount == 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - } - res.set(utils.configureWebAnnoHeadersFor(releasedObject)) - console.log(releasedObject._id+" has been released") - releasedObject = idNegotiation(releasedObject) - releasedObject.new_obj_state = JSON.parse(JSON.stringify(releasedObject)) - res.location(releasedObject[_contextid(releasedObject["@context"]) ? "id":"@id"]) - res.json(releasedObject) - return - } - } - } - else{ - //This was a bad request - err = { - message: "You must provide the id of an object to release. Use /release/id-here or release?_id=id-here.", - status: 400 - } - next(createExpressError(err)) - return - } -} - -/** - * Query the MongoDB for objects containing the key:value pairs provided in the JSON Object in the request body. - * This will support wildcards and mongo params like {"key":{$exists:true}} - * The return is always an array, even if 0 or 1 objects in the return. - * */ -const query = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let props = req.body - const limit = parseInt(req.query.limit ?? 100) - const skip = parseInt(req.query.skip ?? 0) - if (Object.keys(props).length === 0) { - //Hey now, don't ask for everything...this can happen by accident. Don't allow it. - let err = { - message: "Detected empty JSON object. You must provide at least one property in the /query request body JSON.", - status: 400 - } - next(createExpressError(err)) - return - } - try { - let matches = await db.find(props).limit(limit).skip(skip).toArray() - matches = matches.map(o => idNegotiation(o)) - res.set(utils.configureLDHeadersFor(matches)) - res.json(matches) - } catch (error) { - next(createExpressError(error)) - } -} - -/** - * Query the MongoDB for objects with the _id provided in the request body or request URL - * Note this specifically checks for _id, the @id pattern is irrelevant. - * Note /v1/id/{blank} does not route here. It routes to the generic 404 - * */ -const id = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let id = req.params["_id"] - try { - let match = await db.findOne({"$or": [{"_id": id}, {"__rerum.slug": id}]}) - if (match) { - res.set(utils.configureWebAnnoHeadersFor(match)) - //Support built in browser caching - res.set("Cache-Control", "max-age=86400, must-revalidate") - //Support requests with 'If-Modified_Since' headers - res.set(utils.configureLastModifiedHeader(match)) - match = idNegotiation(match) - res.location(_contextid(match["@context"]) ? match.id : match["@id"]) - res.json(match) - return - } - let err = { - "message": `No RERUM object with id '${id}'`, - "status": 404 - } - next(createExpressError(err)) - } catch (error) { - next(createExpressError(error)) - } -} - -/** - * Create many objects at once with the power of MongoDB bulkWrite() operations. - * - * @see https://www.mongodb.com/docs/manual/reference/method/db.collection.bulkWrite/ - */ -const bulkCreate = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - const documents = req.body - let err = {} - if (!Array.isArray(documents)) { - err.message = "The request body must be an array of objects." - err.status = 400 - next(createExpressError(err)) - return - } - if (documents.length === 0) { - err.message = "No action on an empty array." - err.status = 400 - next(createExpressError(err)) - return - } - const gatekeep = documents.filter(d=> { - // Each item must be valid JSON, but can't be an array. - if(Array.isArray(d) || typeof d !== "object") return d - try { - JSON.parse(JSON.stringify(d)) - } catch (err) { - return d - } - // Items must not have an @id, and in some cases same for id. - const idcheck = _contextid(d["@context"]) ? (d.id ?? d["@id"]) : d["@id"] - if(idcheck) return d - }) - if (gatekeep.length > 0) { - err.message = "All objects in the body of a `/bulkCreate` must be JSON and must not contain a declared identifier property." - err.status = 400 - next(createExpressError(err)) - return - } - - // TODO: bulkWrite SLUGS? Maybe assign an id to each document and then use that to create the slug? - // let slug = req.get("Slug") - // if(slug){ - // const slugError = await exports.generateSlugId(slug) - // if(slugError){ - // next(createExpressError(slugError)) - // return - // } - // else{ - // slug = slug_json.slug_id - // } - // } - - // unordered bulkWrite() operations have better performance metrics. - let bulkOps = [] - const generatorAgent = getAgentClaim(req, next) - for(let d of documents) { - // Do not create empty {}s - if(Object.keys(d).length === 0) continue - const providedID = d?._id - const id = isValidID(providedID) ? providedID : ObjectID() - d = utils.configureRerumOptions(generatorAgent, d) - // id is also protected in this case, so it can't be set. - if(_contextid(d["@context"])) delete d.id - d._id = id - d['@id'] = `${process.env.RERUM_ID_PREFIX}${id}` - bulkOps.push({ insertOne : { "document" : d }}) - } - try { - let dbResponse = await db.bulkWrite(bulkOps, {'ordered':false}) - res.set("Content-Type", "application/json; charset=utf-8") - res.set("Link",dbResponse.result.insertedIds.map(r => `${process.env.RERUM_ID_PREFIX}${r._id}`)) // https://www.rfc-editor.org/rfc/rfc5988 - res.status(201) - const estimatedResults = bulkOps.map(f=>{ - let doc = f.insertOne.document - doc = idNegotiation(doc) - return doc - }) - res.json(estimatedResults) // https://www.rfc-editor.org/rfc/rfc7231#section-6.3.2 - } - catch (error) { - //MongoServerError from the client has the following properties: index, code, keyPattern, keyValue - next(createExpressError(error)) - } -} - -/** - * Update many objects at once with the power of MongoDB bulkWrite() operations. - * Make sure to alter object __rerum.history as appropriate. - * The same object may be updated more than once, which will create history branches (not straight sticks) - * - * @see https://www.mongodb.com/docs/manual/reference/method/db.collection.bulkWrite/ - */ -const bulkUpdate = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - const documents = req.body - let err = {} - let encountered = [] - if (!Array.isArray(documents)) { - err.message = "The request body must be an array of objects." - err.status = 400 - next(createExpressError(err)) - return - } - if (documents.length === 0) { - err.message = "No action on an empty array." - err.status = 400 - next(createExpressError(err)) - return - } - const gatekeep = documents.filter(d => { - // Each item must be valid JSON, but can't be an array. - if(Array.isArray(d) || typeof d !== "object") return d - try { - JSON.parse(JSON.stringify(d)) - } catch (err) { - return d - } - // Items must have an @id, or in some cases an id will do - const idcheck = _contextid(d["@context"]) ? (d.id ?? d["@id"]) : d["@id"] - if(!idcheck) return d - }) - // The empty {}s will cause this error - if (gatekeep.length > 0) { - err.message = "All objects in the body of a `/bulkUpdate` must be JSON and must contain a declared identifier property." - err.status = 400 - next(createExpressError(err)) - return - } - // unordered bulkWrite() operations have better performance metrics. - let bulkOps = [] - const generatorAgent = getAgentClaim(req, next) - for(const objectReceived of documents){ - // We know it has an id - const idReceived = objectReceived["@id"] ?? objectReceived.id - // Update the same thing twice? can vs should. - // if(encountered.includes(idReceived)) continue - encountered.push(idReceived) - if(!idReceived.includes(process.env.RERUM_ID_PREFIX)) continue - let id = parseDocumentID(idReceived) - let originalObject - try { - originalObject = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === originalObject) continue - if (utils.isDeleted(originalObject)) continue - id = ObjectID() - let context = objectReceived["@context"] ? { "@context": objectReceived["@context"] } : {} - let rerumProp = { "__rerum": utils.configureRerumOptions(generatorAgent, originalObject, true, false)["__rerum"] } - delete objectReceived["__rerum"] - delete objectReceived["_id"] - delete objectReceived["@id"] - // id is also protected in this case, so it can't be set. - if(_contextid(objectReceived["@context"])) delete objectReceived.id - delete objectReceived["@context"] - let newObject = Object.assign(context, { "@id": process.env.RERUM_ID_PREFIX + id }, objectReceived, rerumProp, { "_id": id }) - bulkOps.push({ insertOne : { "document" : newObject }}) - if(originalObject.__rerum.history.next.indexOf(newObject["@id"]) === -1){ - originalObject.__rerum.history.next.push(newObject["@id"]) - const replaceOp = { replaceOne : - { - "filter" : { "_id": originalObject["_id"] }, - "replacement" : originalObject, - "upsert" : false - } - } - bulkOps.push(replaceOp) - } - } - try { - let dbResponse = await db.bulkWrite(bulkOps, {'ordered':false}) - res.set("Content-Type", "application/json; charset=utf-8") - res.set("Link", dbResponse.result.insertedIds.map(r => `${process.env.RERUM_ID_PREFIX}${r._id}`)) // https://www.rfc-editor.org/rfc/rfc5988 - res.status(200) - const estimatedResults = bulkOps.filter(f=>f.insertOne).map(f=>{ - let doc = f.insertOne.document - doc = idNegotiation(doc) - return doc - }) - res.json(estimatedResults) // https://www.rfc-editor.org/rfc/rfc7231#section-6.3.2 - } - catch (error) { - //MongoServerError from the client has the following properties: index, code, keyPattern, keyValue - next(createExpressError(error)) - } -} - -/** - * Allow for HEAD requests by @id via the RERUM getByID pattern /v1/id/ - * No object is returned, but the Content-Length header is set. - * Note /v1/id/{blank} does not route here. It routes to the generic 404 - * */ -const idHeadRequest = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let id = req.params["_id"] - try { - let match = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - if (match) { - const size = Buffer.byteLength(JSON.stringify(match)) - res.set("Content-Length", size) - res.sendStatus(200) - return - } - let err = { - "message": `No RERUM object with id '${id}'`, - "status": 404 - } - next(createExpressError(err)) - } catch (error) { - next(createExpressError(error)) - } -} - -/** - * Allow for HEAD requests via the RERUM getByProperties pattern /v1/api/query - * No objects are returned, but the Content-Length header is set. - */ -const queryHeadRequest = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let props = req.body - try { - let matches = await db.find(props).toArray() - if (matches.length) { - const size = Buffer.byteLength(JSON.stringify(match)) - res.set("Content-Length", size) - res.sendStatus(200) - return - } - let err = { - "message": `There is no object in the database with id '${id}'. Check the URL.`, - "status": 404 - } - next(createExpressError(err)) - } catch (error) { - next(createExpressError(error)) - } -} - -/** - * Public facing servlet to gather for all versions downstream from a provided `key object`. - * @param oid variable assigned by urlrewrite rule for /id in urlrewrite.xml - * @throws java.lang.Exception - * @respond JSONArray to the response out for parsing by the client application. - */ -const since = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let id = req.params["_id"] - let obj - try { - obj = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === obj) { - let err = { - message: `Cannot produce a history. There is no object in the database with id '${id}'. Check the URL.`, - status: 404 - } - next(createExpressError(err)) - return - } - let all = await getAllVersions(obj) - .catch(error => { - console.error(error) - return [] - }) - let descendants = getAllDescendants(all, obj, []) - descendants = - descendants.map(o => idNegotiation(o)) - res.set(utils.configureLDHeadersFor(descendants)) - res.json(descendants) -} - - -/** - * Public facing servlet action to find all upstream versions of an object. This is the action the user hits with the API. - * If this object is `prime`, it will be the only object in the array. - * @param oid variable assigned by urlrewrite rule for /id in urlrewrite.xml - * @respond JSONArray to the response out for parsing by the client application. - * @throws Exception - */ -const history = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let id = req.params["_id"] - let obj - try { - obj = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === obj) { - let err = { - message: `Cannot produce a history. There is no object in the database with id '${id}'. Check the URL.`, - status: 404 - } - next(createExpressError(err)) - return - } - let all = await getAllVersions(obj) - .catch(error => { - console.error(error) - return [] - }) - let ancestors = getAllAncestors(all, obj, []) - ancestors = - ancestors.map(o => idNegotiation(o)) - res.set(utils.configureLDHeadersFor(ancestors)) - res.json(ancestors) -} - -/** - * Allow for HEAD requests via the RERUM since pattern /v1/since/:_id - * No objects are returned, but the Content-Length header is set. - * */ -const sinceHeadRequest = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let id = req.params["_id"] - let obj - try { - obj = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === obj) { - let err = { - message: `Cannot produce a history. There is no object in the database with id '${id}'. Check the URL.`, - status: 404 - } - next(createExpressError(err)) - return - } - let all = await getAllVersions(obj) - .catch(error => { - console.error(error) - return [] - }) - let descendants = getAllDescendants(all, obj, []) - if (descendants.length) { - const size = Buffer.byteLength(JSON.stringify(descendants)) - res.set("Content-Length", size) - res.sendStatus(200) - return - } - res.set("Content-Length", 0) - res.sendStatus(200) -} - -/** - * Allow for HEAD requests via the RERUM since pattern /v1/history/:_id - * No objects are returned, but the Content-Length header is set. - * */ -const historyHeadRequest = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - let id = req.params["_id"] - let obj - try { - obj = await db.findOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - } catch (error) { - next(createExpressError(error)) - return - } - if (null === obj) { - let err = { - message: "Cannot produce a history. There is no object in the database with this id. Check the URL.", - status: 404 - } - next(createExpressError(err)) - return - } - let all = await getAllVersions(obj) - .catch(error => { - console.error(error) - return [] - }) - let ancestors = getAllAncestors(all, obj, []) - if (ancestors.length) { - const size = Buffer.byteLength(JSON.stringify(ancestors)) - res.set("Content-Length", size) - res.sendStatus(200) - return - } - res.set("Content-Length", 0) - res.sendStatus(200) -} - -/** - * Internal private method to loads all derivative versions from the `root` object. It should always receive a reliable object, not one from the user. - * Used to resolve the history tree for storing into memory. - * @param obj A JSONObject to find all versions of. If it is root, make sure to prepend it to the result. If it isn't root, query for root from the ID - * found in prime using that result as a reliable root object. - * @return All versions from the store of the object in the request - * @throws Exception when a JSONObject with no '__rerum' property is provided. - */ -async function getAllVersions(obj) { - let ls_versions - let primeID = obj?.__rerum.history.prime - let rootObj = ( primeID === "root") - ? //The obj passed in is root. So it is the rootObj we need. - JSON.parse(JSON.stringify(obj)) - : //The obj passed in knows the ID of root, grab it from Mongo - await db.findOne({ "@id": primeID }) - /** - * Note that if you attempt the following code, it will cause Cannot convert undefined or null to object in getAllVersions. - * rootObj = await db.findOne({"$or":[{"_id": primeID}, {"__rerum.slug": primeID}]}) - * This is the because some of the @ids have different RERUM URL patterns on them. - **/ - //All the children of this object will have its @id in __rerum.history.prime - ls_versions = await db.find({ "__rerum.history.prime": rootObj['@id'] }).toArray() - //The root object is a version, prepend it in - ls_versions.unshift(rootObj) - return ls_versions -} - -/** - * Internal method to filter ancestors upstream from `key object` until `root`. It should always receive a reliable object, not one from the user. - * This list WILL NOT contains the keyObj. - * - * "Get requests can't have body" - * In fact in the standard they can (at least nothing says they can't). But lot of servers and firewall implementation suppose they can't - * and drop them so using body in get request is a very bad idea. - * - * @param ls_versions all the versions of the key object on all branches - * @param keyObj The object from which to start looking for ancestors. It is not included in the return. - * @param discoveredAncestors The array storing the ancestor objects discovered by the recursion. - * @return All the objects that were deemed ancestors in a JSONArray - */ -function getAllAncestors(ls_versions, keyObj, discoveredAncestors) { - let previousID = keyObj.__rerum.history.previous //The first previous to look for - for (let v of ls_versions) { - if (keyObj.__rerum.history.prime === "root") { - //Check if we found root when we got the last object out of the list. If so, we are done. If keyObj was root, it will be detected here. Break out. - break - } - else if (v["@id"] === previousID) { - //If this object's @id is equal to the previous from the last object we found, its the one we want. Look to its previous to keep building the ancestors Array. - previousID = v.__rerum.history.previous - if (previousID === "" && v.__rerum.history.prime !== "root") { - //previous is blank and this object is not the root. This is gunna trip it up. - //@cubap Yikes this is a problem. This branch on the tree is broken...what should we tell the user? How should we handle? - break - } - else { - discoveredAncestors.push(v) - //Recurse with what you have discovered so far and this object as the new keyObj - getAllAncestors(ls_versions, v, discoveredAncestors) - break - } - } - } - return discoveredAncestors -} - -/** - * Internal method to find all downstream versions of an object. It should always receive a reliable object, not one from the user. - * If this object is the last, the return will be an empty JSONArray. The keyObj WILL NOT be a part of the array. - * @param ls_versions All the given versions, including root, of a provided object. - * @param keyObj The provided object - * @param discoveredDescendants The array storing the descendants objects discovered by the recursion. - * @return All the objects that were deemed descendants in a JSONArray - */ -function getAllDescendants(ls_versions, keyObj, discoveredDescendants) { - let nextIDarr = [] - if (keyObj.__rerum.history.next.length === 0) { - //essentially, do nothing. This branch is done. - } - else { - //The provided object has nexts, get them to add them to known descendants then check their descendants. - nextIDarr = keyObj.__rerum.history.next - } - for (let nextID of nextIDarr) { - for (let v of ls_versions) { - if (v["@id"] === nextID) { //If it is equal, add it to the known descendants - //Recurse with what you have discovered so far and this object as the new keyObj - discoveredDescendants.push(v) - getAllDescendants(ls_versions, v, discoveredDescendants); - break - } - } - } - return discoveredDescendants -} - -/** - * Internal helper method to update the history.previous property of a root object. This will occur because a new root object can be created - * by put_update.action on an external object. It must mark itself as root and contain the original ID for the object in history.previous. - * This method only receives reliable objects from mongo. - * - * @param newRootObj the RERUM object whose history.previous needs to be updated - * @param externalObjID the @id of the external object to go into history.previous - * @return JSONObject of the provided object with the history.previous alteration - */ -async function alterHistoryPrevious(objToUpdate, newPrevID) { - //We can keep this real short if we trust the objects sent into here. I think these are private helper functions, and so we can. - objToUpdate.__rerum.history.previous = newPrevID - let result = await db.replaceOne({ "_id": objToUpdate["_id"] }, objToUpdate) - return result.modifiedCount > 0 -} - -/** - * Internal helper method to update the history.next property of an object. This will occur because updateObject will create a new object from a given object, and that - * given object will have a new next value of the new object. Watch out for missing __rerum or malformed __rerum.history - * - * @param idForUpdate the @id of the object whose history.next needs to be updated - * @param newNextID the @id of the newly created object to be placed in the history.next array. - * @return Boolean altered true on success, false on fail - */ -async function alterHistoryNext(objToUpdate, newNextID) { - //We can keep this real short if we trust the objects sent into here. I think these are private helper functions, and so we can. - if(objToUpdate.__rerum.history.next.indexOf(newNextID) === -1){ - objToUpdate.__rerum.history.next.push(newNextID) - let result = await db.replaceOne({ "_id": objToUpdate["_id"] }, objToUpdate) - return result.modifiedCount > 0 - } - return true -} - -/** - * Internal helper method to handle put_update.action on an external object. The goal is to make a copy of object as denoted by the PUT request - * as a RERUM object (creating a new object) then have that new root object reference the @id of the external object in its history.previous. - * - * @param externalObj the external object as it existed in the PUT request to be saved. -*/ -async function updateExternalObject(received) { - let err = { - message: "You will get a 201 upon success. This is not supported yet. Nothing happened.", - status: 501 - } - next(createExpressError(err)) -} - -/** -* An internal method to handle when an object is deleted and the history tree around it will need amending. -* This function should only be handed a reliable object from mongo. -* -* @param obj A JSONObject of the object being deleted. -* @return A boolean representing whether or not this function succeeded. -*/ -async function healHistoryTree(obj) { - let previous_id = "" - let prime_id = "" - let next_ids = [] - if (obj["__rerum"]) { - previous_id = obj["__rerum"]["history"]["previous"] - prime_id = obj["__rerum"]["history"]["prime"] - next_ids = obj["__rerum"]["history"]["next"] - } - else { - console.error("This object has no history because it has no '__rerum' property. There is nothing to heal.") - return false - //throw new Error("This object has no history because it has no '__rerum' property. There is nothing to heal.") - } - let objToDeleteisRoot = (prime_id === "root") - //Update the history.previous of all the next ids in the array of the deleted object - try { - for (nextID of next_ids) { - let objWithUpdate = {} - const nextIdForQuery = parseDocumentID(nextID) - const objToUpdate = await db.findOne({"$or":[{"_id": nextIdForQuery}, {"__rerum.slug": nextIdForQuery}]}) - if (null !== objToUpdate) { - let fixHistory = JSON.parse(JSON.stringify(objToUpdate)) - if (objToDeleteisRoot) { - //This means this next object must become root. - //Strictly, all history trees must have num(root) > 0. - if (newTreePrime(fixHistory)) { - fixHistory["__rerum"]["history"]["prime"] = "root" - //The previous always inherited in this case, even if it isn't there. - fixHistory["__rerum"]["history"]["previous"] = previous_id - } - else { - throw Error("Could not update all descendants with their new prime value") - } - } - else if (previous_id !== "") { - //The object being deleted had a previous. That is now absorbed by this next object to mend the gap. - fixHistory["__rerum"]["history"]["previous"] = previous_id - } - else { - // @cubap @theHabes TODO Yikes this is some kind of error...it is either root or has a previous, this case means neither are true. - // cubap: Since this is a __rerum error and it means that the object is already not well-placed in a tree, maybe it shouldn't fail to delete? - // theHabes: Are their bad implications on the relevant nodes in the tree that reference this one if we allow it to delete? Will their account of the history be correct? - throw Error("object did not have previous and was not root.") - } - //Does this have to be async? - let verify = await db.replaceOne({ "_id": objToUpdate["_id"] }, fixHistory) - if (verify.modifiedCount === 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - throw Error("Could not update all descendants with their new prime value") - } - } - else { - throw Error("Could not update all descendants with their new prime value") - } - } - //Here it may be better to resolve the previous_id and check for __rerum...maybe this is a sister RERUM with a different prefix - if (previous_id.indexOf(process.env.RERUM_PREFIX) > -1) { - //The object being deleted had a previous that is internal to RERUM. That previous object next[] must be updated with the deleted object's next[]. - //For external objects, do nothing is the right thing to do here. - let objWithUpdate2 = {} - const objToUpdate2 = await db.findOne({"$or":[{"_id": nextIdForQuery}, {"__rerum.slug": nextIdForQuery}]}) - if (null !== objToUpdate2) { - let fixHistory2 = JSON.parse(JSON.stringify(objToUpdate2)) - let origNextArray = fixHistory2["__rerum"]["history"]["next"] - let newNextArray = [...origNextArray] - //This next should no longer have obj["@id"] - newNextArray = newNextArray.splice(obj["@id"], 1) - //This next needs to contain the nexts from the deleted object - newNextArray = [...newNextArray, ...next_ids] - fixHistory2["__rerum"]["history"]["next"] = newNextArray //Rewrite the next[] array to fix the history - //Does this have to be async - let verify2 = await db.replaceOne({ "_id": objToUpdate2["_id"] }, fixHistory2) - if (verify2.modifiedCount === 0) { - //verify didn't error out, but it also didn't succeed... - throw Error("Could not update all ancestors with their altered next value") - } - } - else { - //The history.previous object could not be found in this RERUM Database. - //It has this APIs id pattern, that means we expected to find it. This is an error. - //throw new Error("Could not update all descendants with their new prime value") - throw Error("Could not update all ancestors with their altered next value: cannot find ancestor.") - } - } - else { - //console.log("The value of history.previous was an external URI or was not present. Nothing to heal. URI:"+previous_id); - } - } catch (error) { - // something threw so the history tree isn't resolved - console.error(error) - return false - } - //Here it may be better to resolve the previous_id and check for __rerum...maybe this is a sister RERUM with a different prefix - if (previous_id.indexOf(process.env.RERUM_PREFIX.split('//')[1]) > -1) { - //The object being deleted had a previous that is internal to RERUM. That previous object next[] must be updated with the deleted object's next[]. - //For external objects, do nothing is the right thing to do here. - let previousIdForQuery = parseDocumentID(previous_id) - const objToUpdate2 = await db.findOne({"$or":[{"_id": previousIdForQuery}, {"__rerum.slug": previousIdForQuery}]}) - if (null !== objToUpdate2) { - let fixHistory2 = JSON.parse(JSON.stringify(objToUpdate2)) - let origNextArray = fixHistory2["__rerum"]["history"]["next"] - let newNextArray = [...origNextArray] - //This next should no longer have obj["@id"] - newNextArray = newNextArray.splice(obj["@id"], 1) - //This next needs to contain the nexts from the deleted object - newNextArray = [...newNextArray, ...next_ids] - fixHistory2["__rerum"]["history"]["next"] = newNextArray //Rewrite the next[] array to fix the history - //Does this have to be async - let verify2 = await db.replaceOne({ "_id": objToUpdate2["_id"] }, fixHistory2) - if (verify2.modifiedCount === 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - console.error("Could not update all ancestors with their altered next value") - return false - } - } - else { - //The history.previous object could not be found in this RERUM Database. - //It has this APIs id pattern, that means we expected to find it. This is an error. - //throw new Error("Could not update all descendants with their new prime value") - console.error("Could not update all ancestors with their altered next value: cannot find ancestor.") - return false - } - } - else { - //console.log("The value of history.previous was an external URI or was not present. Nothing to heal. URI:"+previous_id); - } - return true -} - -/** -* An internal method to make all descendants of this JSONObject take on a new history.prime = this object's @id -* This should only be fed a reliable object from mongo -* @param obj A new prime object whose descendants must take on its id -*/ -async function newTreePrime(obj) { - if (obj["@id"]) { - let primeID = obj["@id"] - let ls_versions = [] - let descendants = [] - try { - ls_versions = await getAllVersions(obj) - descendants = getAllDescendants(ls_versions, obj, []) - } catch (error) { - // fail silently - } - for (d of descendants) { - let objWithUpdate = JSON.parse(JSON.stringify(d)) - objWithUpdate["__rerum"]["history"]["prime"] = primeID - let result = await db.replaceOne({ "_id": d["_id"] }, objWithUpdate) - if (result.modifiedCount === 0) { - console.error("Could not update all descendants with their new prime value: newTreePrime failed") - return false - //throw new Error("Could not update all descendants with their new prime value: newTreePrime failed") - } - } - } - else { - console.error("newTreePrime failed. Obj did not have '@id'.") - return false - //throw new Error("newTreePrime failed. Obj did not have '@id'.") - } - return true -} - -/** - * Recieve an error from a route. It should already have a statusCode and statusMessage. - * Note that this may be a Mongo error that occurred during a database action during a route. - * Reformat known mongo errors into regular errors with an apprpriate statusCode and statusMessage. - * - * @param {Object} err An object with `statusMessage` and `statusCode`, or a Mongo error with 'code', for error reporting - * @returns A JSON object with a statusCode and statusMessage to send into rest.js for RESTful erroring. - */ -function createExpressError(err) { - let error = {} - if (err.code) { - switch (err.code) { - case 11000: - //Duplicate _id key error, specific to SLUG support. This is a Conflict. - error.statusMessage = `The id provided already exists. Please use a different _id or Slug.` - error.statusCode = 409 - break - default: - error.statusMessage = "There was a mongo error that prevented this request from completing successfully." - error.statusCode = 500 - } - } - error.statusCode = err.statusCode ?? err.status ?? 500 - error.statusMessage = err.statusMessage ?? err.message ?? "Detected Error" - return error -} - -/** - * An internal helper for removing a document from the database using a known _id or __rerums.slug. - * This is not exposed over the http request and response. - * Use it internally where necessary. Ex. end to end Slug test - */ -const remove = async function(id) { - try { - const result = await db.deleteOne({"$or":[{"_id": id}, {"__rerum.slug": id}]}) - if (!result.deletedCount === 1) { - throw Error("Could not remove object") - } - return true - } - catch (error) { - error.message = "Could not remove object" - throw error - } -} - -/** - * An internal helper for getting the agent from req.user - * If you do not find an agent, the API does not know this requestor. - * This means attribution is not possible, regardless of the state of the token. - * The app is forbidden until registered with RERUM. Access tokens are encoded with the agent. - */ -function getAgentClaim(req, next) { - const claimKeys = [process.env.RERUM_AGENT_CLAIM, "http://devstore.rerum.io/v1/agent", "http://store.rerum.io/agent"] - let agent = "" - for (const claimKey of claimKeys) { - agent = req.user[claimKey] - if (agent) { - return agent - } - } - let err = { - "message": "Could not get agent from req.user. Have you registered with RERUM?", - "status": 403 - } - next(createExpressError(err)) -} - -/** - * Internal helper method to establish the releases tree from a given object - * that is being released. - * This can probably be collapsed into healReleasesTree. It contains no checks, - * it is brute force update ancestors and descendants. - * It is significantly cleaner and slightly faster than healReleaseTree() which - * is why I think we should keep them separate. - * - * This method only receives reliable objects from mongo. - * - * @param obj the RERUM object being released - * @return Boolean sucess or some kind of Exception - */ -async function establishReleasesTree(releasing){ - let success = true - const all = await getAllVersions(releasing) - .catch(error => { - console.error(error) - return [] - }) - const descendants = getAllDescendants(all, releasing, []) - const ancestors = getAllAncestors(all, releasing, []) - for(const d of descendants){ - let safe_descendant = JSON.parse(JSON.stringify(d)) - let d_id = safe_descendant._id - safe_descendant.__rerum.releases.previous = releasing["@id"] - let result - try { - result = await db.replaceOne({ "_id": d_id }, safe_descendant) - } - catch (error) { - next(createExpressError(error)) - return - } - if (result.modifiedCount == 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - //console.log("nothing modified...") - //success = false - } - } - for(const a of ancestors){ - let safe_ancestor = JSON.parse(JSON.stringify(a)) - let a_id = safe_ancestor._id - if(safe_ancestor.__rerum.releases.next.indexOf(releasing["@id"]) === -1){ - safe_ancestor.__rerum.releases.next.push(releasing["@id"]) - } - let result - try { - result = await db.replaceOne({ "_id": a_id }, safe_ancestor) - } - catch (error) { - next(createExpressError(error)) - return - } - if (result.modifiedCount == 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - //console.log("nothing modified...") - //success = false - } - } - return success -} - -/** - * Internal helper method to update the releases tree from a given object that - * is being released. See code in method for further documentation. - * https://www.geeksforgeeks.org/find-whether-an-array-is-subset-of-another-array-set-1/ - * - * This method only receives reliable objects from mongo. - * - * @param obj the RERUM object being released - * @return Boolean success or some kind of Exception - */ -async function healReleasesTree(releasing) { - let success = true - const all = await getAllVersions(releasing) - .catch(error => { - console.error(error) - return [] - }) - const descendants = getAllDescendants(all, releasing, []) - const ancestors = getAllAncestors(all, releasing, []) - for(const d of descendants){ - let safe_descendant = JSON.parse(JSON.stringify(d)) - let d_id = safe_descendant._id - if(d.__rerum.releases.previous === releasing.__rerum.releases.previous){ - // If the descendant's previous matches the node I am releasing's - // releases.previous, swap the descendant releses.previous with node I am releasing's @id. - safe_descendant.__rerum.releases.previous = releasing["@id"] - if(d.__rerum.isReleased !== ""){ - // If this descendant is released, it replaces the node being released - if(d.__rerum.releases.previous === releasing["@id"]){ - safe_descendant.__rerum.releases.replaces = releasing["@id"] - } - } - let result - try { - result = await db.replaceOne({ "_id": d_id }, safe_descendant) - } - catch (error) { - next(createExpressError(error)) - return - } - if (result.modifiedCount == 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - //success = false - } - } - } - let origNextArray = releasing.__rerum.releases.next - for (const a of ancestors){ - let safe_ancestor = JSON.parse(JSON.stringify(a)) - let a_id = safe_ancestor._id - let ancestorNextArray = safe_ancestor.__rerum.releases.next - if (ancestorNextArray.length == 0) { - // The releases.next on the node I am releasing is empty. This means only other - // ancestors with empty releases.next[] are between me and the next ancenstral released node - // Add the id of the node I am releasing into the ancestor's releases.next array. - if(ancestorNextArray.indexOf(releasing["@id"]) === -1){ - ancestorNextArray.push(releasing["@id"]) - } - } - else{ - // The releases.next on the node I am releasing has 1 - infinity entries. I need - // to check if any of the entries of that array exist in the releases.next of my - // ancestors and remove them before - // adding the @id of the released node into the acenstral releases.next array. - for(const i of origNextArray){ - for(const j of ancestorNextArray){ - // For each id in the ancestor's releases.next array - if (i === j) { - // If the id is in the next array of the object I am releasing and in the - // releases.next array of the ancestor - const index = ancestorNextArray.indexOf(j) - if (index > -1) { - // remove that id. - ancestorNextArray = ancestorNextArray.splice(index, 1) - } - } - } - } - // Whether or not the ancestral node replaces the node I am releasing or not - // happens in releaseObject() when I make the node I am releasing isReleased - // because I can use the releases.previous there. - // Once I have checked against all id's in the ancestor node releases.next[] and removed the ones I needed to - // Add the id of the node I am releasing into the ancestor's releases.next array. - if(ancestorNextArray.indexOf(releasing["@id"]) === -1){ - ancestorNextArray.push(releasing["@id"]) - } - } - safe_ancestor.__rerum.releases.next = ancestorNextArray - let result - try { - result = await db.replaceOne({ "_id": a_id }, safe_ancestor) - } - catch (error) { - next(createExpressError(error)) - return - } - if (result.modifiedCount == 0) { - //result didn't error out, the action was not performed. Sometimes, this is a neutral thing. Sometimes it is indicative of an error. - //success = false - } - - } - return success -} - -/** - * Get the __id database value for lookup from the @id or id key. - * This is an indexed key so lookup should be very quick. - * @param {String} atID URI of document at //store.rerum.io/v1/id/ - */ -function parseDocumentID(atID){ - if(typeof atID !== 'string') { - throw new Error("Unable to parse this type.") - } - if(!/^https?/.test(atID)){ - throw new Error(`Designed for parsing URL strings. Please check: ${atID}`) - } - return atID.split('/').pop() -} - -/** - * THIS IS SPECIFICALLY FOR 'Gallery of Glosses' - * Starting from a ManuscriptWitness URI get all WitnessFragment entities that are a part of the Manuscript. - * The inbound request is a POST request with an Authorization header - * The Bearer Token in the header must be from TinyMatt. - * The body must be formatted correctly - {"ManuscriptWitness":"witness_uri_here"} - * - * TODO? Some sort of limit and skip for large responses? - * - * @return The set of {'@id':'123', '@type':'WitnessFragment'} objects that match this criteria, as an Array - * */ -const _gog_fragments_from_manuscript = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - const agent = getAgentClaim(req, next) - const agentID = agent.split("/").pop() - const manID = req.body["ManuscriptWitness"] - const limit = parseInt(req.query.limit ?? 50) - const skip = parseInt(req.query.skip ?? 0) - let err = { message: `` } - // This request can only be made my Gallery of Glosses production apps. - if (!agentID === "61043ad4ffce846a83e700dd") { - err = Object.assign(err, { - message: `Only the Gallery of Glosses can make this request.`, - status: 403 - }) - } - // Must have a properly formed body with a usable value - else if(!manID || !manID.startsWith("http")){ - err = Object.assign(err, { - message: `The body must be JSON like {"ManuscriptWitness":"witness_uri_here"}.`, - status: 400 - }) - } - if (err.status) { - next(createExpressError(err)) - return - } - try { - let matches = [] - const partOfConditions = [ - {"body.partOf.value": manID.replace(/^https?/, "http")}, - {"body.partOf.value": manID.replace(/^https?/, "https")}, - {"body.partOf": manID.replace(/^https?/, "http")}, - {"body.partOf": manID.replace(/^https?/, "https")} - ] - const generatorConditions = [ - {"__rerum.generatedBy": agent.replace(/^https?/, "http")}, - {"__rerum.generatedBy": agent.replace(/^https?/, "https")} - ] - const fragmentTypeConditions = [ - {"witnessFragment.type": "WitnessFragment"}, - {"witnessFragment.@type": "WitnessFragment"} - ] - const annoTypeConditions = [ - {"type": "Annotation"}, - {"@type": "Annotation"}, - {"@type": "oa:Annotation"} - ] - let witnessFragmentPipeline = [ - // Step 1: Detect Annotations bodies noting their 'target' is 'partOf' this Manuscript - { - $match: { - "__rerum.history.next": { "$exists": true, "$size": 0 }, - "$and":[ - {"$or": annoTypeConditions}, - {"$or": partOfConditions}, - {"$or": generatorConditions} - ] - } - }, - // Step 1.1 through 1.3 for limit and skip functionality. - { $sort : { _id: 1 } }, - { $skip : skip }, - { $limit : limit }, - // Step 2: Using the target of those Annotations lookup the Entity they represent and store them in a witnessFragment property on the Annotation - // Note that $match had filtered down the alpha collection, so we use $lookup to look through the whole collection again. - // FIXME? a target that is http will not match an @id that is https - { - $lookup: { - from: "alpha", - localField: "target", // Field in `Annotation` referencing `@id` in `alpha` corresponding to a WitnessFragment @id - foreignField: "@id", - as: "witnessFragment" - } - }, - // Step 3: Filter out anything that is not a WitnessFragment entity (and a leaf) - { - $match: { - "witnessFragment.__rerum.history.next": { "$exists": true, "$size": 0 }, - "$or": fragmentTypeConditions - } - }, - // Step 4: Unwrap the Annotation and just return its corresponding WitnessFragment entity - { - $project: { - "_id": 0, - "@id": "$witnessFragment.@id", - "@type": "WitnessFragment" - } - }, - // Step 5: @id values are an Array of 1 and need to be a string instead - { - $unwind: { "path": "$@id" } - } - // Step 6: Cache it? - ] - - // console.log("Start GoG WitnessFragment Aggregator") - const start = Date.now(); - let witnessFragments = await db.aggregate(witnessFragmentPipeline).toArray() - .then((fragments) => { - if (fragments instanceof Error) { - throw fragments - } - return fragments - }) - const fragmentSet = new Set(witnessFragments) - witnessFragments = Array.from(fragmentSet.values()) - // Note that a server side expand() is available and could be used to expand these fragments here. - // console.log("End GoG WitnessFragment Aggregator") - // console.log(witnessFragments.length+" fragments found for this Manuscript") - // const end = Date.now() - // console.log(`Total Execution time: ${end - start} ms`) - res.set(utils.configureLDHeadersFor(witnessFragments)) - res.json(witnessFragments) - } - catch (error) { - console.error(error) - next(createExpressError(error)) - } -} - -/** - * THIS IS SPECIFICALLY FOR 'Gallery of Glosses' - * Starting from a ManuscriptWitness URI get all Gloss entities that are a part of the Manuscript. - * The inbound request is a POST request with an Authorization header. - * The Bearer Token in the header must be from TinyMatt. - * The body must be formatted correctly - {"ManuscriptWitness":"witness_uri_here"} - * - * TODO? Some sort of limit and skip for large responses? - * - * @return The set of {'@id':'123', '@type':'Gloss'} objects that match this criteria, as an Array - * */ -const _gog_glosses_from_manuscript = async function (req, res, next) { - res.set("Content-Type", "application/json; charset=utf-8") - const agent = getAgentClaim(req, next) - const agentID = agent.split("/").pop() - const manID = req.body["ManuscriptWitness"] - const limit = parseInt(req.query.limit ?? 50) - const skip = parseInt(req.query.skip ?? 0) - let err = { message: `` } - // This request can only be made my Gallery of Glosses production apps. - if (!agentID === "61043ad4ffce846a83e700dd") { - err = Object.assign(err, { - message: `Only the Gallery of Glosses can make this request.`, - status: 403 - }) - } - // Must have a properly formed body with a usable value - else if(!manID || !manID.startsWith("http")){ - err = Object.assign(err, { - message: `The body must be JSON like {"ManuscriptWitness":"witness_uri_here"}.`, - status: 400 - }) - } - if (err.status) { - next(createExpressError(err)) - return - } - try { - let matches = [] - const partOfConditions = [ - {"body.partOf.value": manID.replace(/^https?/, "http")}, - {"body.partOf.value": manID.replace(/^https?/, "https")}, - {"body.partOf": manID.replace(/^https?/, "http")}, - {"body.partOf": manID.replace(/^https?/, "https")} - ] - const generatorConditions = [ - {"__rerum.generatedBy": agent.replace(/^https?/, "http")}, - {"__rerum.generatedBy": agent.replace(/^https?/, "https")} - ] - const fragmentTypeConditions = [ - {"witnessFragment.type": "WitnessFragment"}, - {"witnessFragment.@type": "WitnessFragment"} - ] - const annoTypeConditions = [ - {"type": "Annotation"}, - {"@type": "Annotation"}, - {"@type": "oa:Annotation"} - ] - let glossPipeline = [ - // Step 1: Detect Annotations bodies noting their 'target' is 'partOf' this Manuscript - { - $match: { - "__rerum.history.next": { $exists: true, $size: 0 }, - "$and":[ - {"$or": annoTypeConditions}, - {"$or": partOfConditions}, - {"$or": generatorConditions} - ] - } - }, - // Step 1.1 through 1.3 for limit and skip functionality. - { $sort : { _id: 1 } }, - { $skip : skip }, - { $limit : limit }, - // Step 2: Using the target of those Annotations lookup the Entity they represent and store them in a witnessFragment property on the Annotation - // Note that $match had filtered down the alpha collection, so we use $lookup to look through the whole collection again. - // FIXME? a target that is http will not match an @id that is https - { - $lookup: { - from: "alpha", - localField: "target", // Field in `Annotation` referencing `@id` in `alpha` corresponding to a WitnessFragment @id - foreignField: "@id", - as: "witnessFragment" - } - }, - // Step 3: Filter Annotations to be only those which are for a WitnessFragment Entity - { - $match: { - "$or": fragmentTypeConditions - } - }, - // Step 4: Unwrap the Annotation and just return its corresponding WitnessFragment entity - { - $project: { - "_id": 0, - "@id": "$witnessFragment.@id", - "@type": "WitnessFragment" - } - }, - // Step 5: @id values are an Array of 1 and need to be a string instead - { - $unwind: { "path": "$@id" } - }, - // Step 6: Using the WitnessFragment ids lookup their references Annotations - // Note that $match had filtered down the alpha collection, so we use $lookup to look through the whole collection again. - { - $lookup: { - from: "alpha", - localField: "@id", // Field in `WitnessFragment` referencing `target` in `alpha` corresponding to a Gloss @id - foreignField: "target", - as: "anno" - } - }, - // Step 7: Filter Annos down to those that are the 'references' Annotations - { - $match: { - "anno.body.references":{ "$exists": true } - } - }, - // Step 7: Collect together the body.references.value[] of those Annotations. Those are the relevant Gloss URIs. - { - $project: { - "_id": 0, - "@id": "$anno.body.references.value", - "@type": "Gloss" - } - }, - // Step 8: @id values are an Array of and Array 1 because references.value is an Array - { - $unwind: { "path": "$@id" } - }, - // Step 9: @id values are now an Array of 1 and need to be a string instead - { - $unwind: { "path": "$@id" } - } - ] - - // console.log("Start GoG Gloss Aggregator") - // const start = Date.now(); - let glosses = await db.aggregate(glossPipeline).toArray() - .then((fragments) => { - if (fragments instanceof Error) { - throw fragments - } - return fragments - }) - const glossSet = new Set(glosses) - glosses = Array.from(glossSet.values()) - // Note that a server side expand() is available and could be used to expand these fragments here. - // console.log("End GoG Gloss Aggregator") - // console.log(glosses.length+" Glosses found for this Manuscript") - // const end = Date.now() - // console.log(`Total Execution time: ${end - start} ms`) - res.set(utils.configureLDHeadersFor(glosses)) - res.json(glosses) - } - catch (error) { - console.error(error) - next(createExpressError(error)) - } -} - -/** -* Find relevant Annotations targeting a primitive RERUM entity. This is a 'full' expand. -* Add the descriptive information in the Annotation bodies to the primitive object. -* -* Anticipate likely Annotation body formats -* - anno.body -* - anno.body.value -* -* Anticipate likely Annotation target formats -* - target: 'uri' -* - target: {'id':'uri'} -* - target: {'@id':'uri'} -* -* Anticipate likely Annotation type formats -* - {"type": "Annotation"} -* - {"@type": "Annotation"} -* - {"@type": "oa:Annotation"} -* -* @param primitiveEntity - An existing RERUM object -* @param GENERATOR - A registered RERUM app's User Agent -* @param CREATOR - Some kind of string representing a specific user. Often combined with GENERATOR. -* @return the expanded entity object -* -*/ -const expand = async function(primitiveEntity, GENERATOR=undefined, CREATOR=undefined){ - if(!primitiveEntity?.["@id"] || primitiveEntity?.id) return primitiveEntity - const targetId = primitiveEntity["@id"] ?? primitiveEntity.id ?? "unknown" - let queryObj = { - "__rerum.history.next": { $exists: true, $size: 0 } - } - let targetPatterns = ["target", "target.@id", "target.id"] - let targetConditions = [] - let annoTypeConditions = [{"type": "Annotation"}, {"@type":"Annotation"}, {"@type":"oa:Annotation"}] - - if (targetId.startsWith("http")) { - for(const targetKey of targetPatterns){ - targetConditions.push({ [targetKey]: targetId.replace(/^https?/, "http") }) - targetConditions.push({ [targetKey]: targetId.replace(/^https?/, "https") }) - } - queryObj["$and"] = [{"$or": targetConditions}, {"$or": annoTypeConditions}] - } - else{ - queryObj["$or"] = annoTypeConditions - queryObj.target = targetId - } - - // Only expand with data from a specific app - if(GENERATOR) { - // Need to check http:// and https:// - const generatorConditions = [ - {"__rerum.generatedBy": GENERATOR.replace(/^https?/, "http")}, - {"__rerum.generatedBy": GENERATOR.replace(/^https?/, "https")} - ] - if (GENERATOR.startsWith("http")) { - queryObj["$and"].push({"$or": generatorConditions }) - } - else{ - // It should be a URI, but this can be a fallback. - queryObj["__rerum.generatedBy"] = GENERATOR - } - } - // Only expand with data from a specific creator - if(CREATOR) { - // Need to check http:// and https:// - const creatorConditions = [ - {"creator": CREATOR.replace(/^https?/, "http")}, - {"creator": CREATOR.replace(/^https?/, "https")} - ] - if (CREATOR.startsWith("http")) { - queryObj["$and"].push({"$or": creatorConditions }) - } - else{ - // It should be a URI, but this can be a fallback. - queryObj["creator"] = CREATOR - } - } - - // Get the Annotations targeting this Entity from the db. Remove _id property. - let matches = await db.find(queryObj).toArray() - matches = matches.map(o => { - delete o._id - return o - }) - - // Combine the Annotation bodies with the primitive object - let expandedEntity = JSON.parse(JSON.stringify(primitiveEntity)) - for(const anno of matches){ - const body = anno.body - let keys = Object.keys(body) - if(!keys || keys.length !== 1) return - let key = keys[0] - let val = body[key].value ?? body[key] - expandedEntity[key] = val - } - - return expandedEntity -} - -export default { - index, - create, - deleteObj, - putUpdate, - patchUpdate, - patchSet, - patchUnset, - generateSlugId, - overwrite, - release, - query, - id, - bulkCreate, - bulkUpdate, - idHeadRequest, - queryHeadRequest, - since, - history, - sinceHeadRequest, - historyHeadRequest, - remove, - _gog_glosses_from_manuscript, - _gog_fragments_from_manuscript, - idNegotiation -} diff --git a/jest.config.js b/jest.config.js index c5a4eb46..e928ecdc 100644 --- a/jest.config.js +++ b/jest.config.js @@ -189,8 +189,8 @@ const config = { // Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout" // timers: "real", - // Sometimes the MongoDB or Network are choking and the tests take longer than 5s. - // testTimeout: 10000, + // Sometimes the MongoDB or Network are choking and the tests take longer than 5s. + testTimeout: 10000, // A map from regular expressions to paths to transformers transform: {}, diff --git a/package-lock.json b/package-lock.json index 3ad12961..90519922 100644 --- a/package-lock.json +++ b/package-lock.json @@ -17,7 +17,8 @@ "express-oauth2-jwt-bearer": "~1.7.1", "express-urlrewrite": "~2.0.3", "mongodb": "~6.20.0", - "morgan": "~1.10.1" + "morgan": "~1.10.1", + "pm2-cluster-cache": "^2.1.7" }, "devDependencies": { "@jest/globals": "^30.2.0", @@ -59,6 +60,7 @@ "integrity": "sha512-2BCOP7TN8M+gVDj7/ht3hsaO/B/n5oDbiAyyvnRlNOs+u1o+JWNYTQrmpuNp1/Wq2gcFrI01JAW+paEKDMx/CA==", "dev": true, "license": "MIT", + 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"dependencies": { "has-flag": "^4.0.0" @@ -5213,6 +6500,17 @@ "node": ">=8" } }, + "node_modules/supports-preserve-symlinks-flag": { + "version": "1.0.0", + "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz", + "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==", + "engines": { + "node": ">= 0.4" + }, + "funding": { + "url": "https://github.com/sponsors/ljharb" + } + }, "node_modules/synckit": { "version": "0.11.11", "resolved": "https://registry.npmjs.org/synckit/-/synckit-0.11.11.tgz", @@ -5297,11 +6595,15 @@ "dev": true, "license": "BSD-3-Clause" }, + "node_modules/to-item": { + "version": "2.0.2", + "resolved": "https://registry.npmjs.org/to-item/-/to-item-2.0.2.tgz", + "integrity": "sha512-66ahfQjVa+pz+tYqwa3X9D3O2TML1p9Ue1tTlw5dcUpO0ntKqDG4pG+ULYRkWXDQAga3J+UoAJbrThzAh5XcuA==" + }, "node_modules/to-regex-range": { "version": "5.0.1", "resolved": 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"sha512-ZCmOJdvOWDBYJlzAoFkC+Q0+bUyEOS1ltgp1MGU03fqHG+dbi9tBFU2Rd9QKiDZFAYrhPh2JUf7rZRIuHRKtOg==", + "dependencies": { + "prelude-ls": "~1.1.2" + }, + "engines": { + "node": ">= 0.8.0" + } }, "node_modules/type-detect": { "version": "4.0.8", @@ -5383,6 +6702,14 @@ "dev": true, "license": "MIT" }, + "node_modules/universalify": { + "version": "0.1.2", + "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz", + "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==", + "engines": { + "node": ">= 4.0.0" + } + }, "node_modules/unpipe": { "version": "1.0.0", "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz", @@ -5458,6 +6785,15 @@ "browserslist": ">= 4.21.0" } }, + "node_modules/uuid": { + "version": "3.4.0", + "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz", + "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==", + "deprecated": "Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math-random for details.", + "bin": { + "uuid": "bin/uuid" + } + }, "node_modules/v8-to-istanbul": { "version": "9.3.0", "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-9.3.0.tgz", @@ -5482,6 +6818,20 @@ "node": ">= 0.8" } }, + "node_modules/vizion": { + "version": "2.2.1", + "resolved": "https://registry.npmjs.org/vizion/-/vizion-2.2.1.tgz", + "integrity": "sha512-sfAcO2yeSU0CSPFI/DmZp3FsFE9T+8913nv1xWBOyzODv13fwkn6Vl7HqxGpkr9F608M+8SuFId3s+BlZqfXww==", + "dependencies": { + "async": "^2.6.3", + "git-node-fs": "^1.0.0", + "ini": "^1.3.5", + "js-git": "^0.7.8" + }, + "engines": { + "node": ">=4.0" + } + }, "node_modules/walker": { "version": "1.0.8", "resolved": "https://registry.npmjs.org/walker/-/walker-1.0.8.tgz", @@ -5530,6 +6880,14 @@ "node": ">= 8" } }, + "node_modules/word-wrap": { + "version": "1.2.5", + "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz", + "integrity": "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==", + "engines": { + "node": ">=0.10.0" + } + }, "node_modules/wrap-ansi": { "version": "8.1.0", "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz", @@ -5645,6 +7003,34 @@ "node": "^14.17.0 || ^16.13.0 || >=18.0.0" } }, + "node_modules/ws": { + "version": "7.2.5", + "resolved": "https://registry.npmjs.org/ws/-/ws-7.2.5.tgz", + "integrity": "sha512-C34cIU4+DB2vMyAbmEKossWq2ZQDr6QEyuuCzWrM9zfw1sGc0mYiJ0UnG9zzNykt49C2Fi34hvr2vssFQRS6EA==", + "engines": { + "node": ">=8.3.0" + }, + "peerDependencies": { + "bufferutil": "^4.0.1", + "utf-8-validate": "^5.0.2" + }, + "peerDependenciesMeta": { + "bufferutil": { + "optional": true + }, + "utf-8-validate": { + "optional": true + } + } + }, + "node_modules/xregexp": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-2.0.0.tgz", + "integrity": "sha512-xl/50/Cf32VsGq/1R8jJE5ajH1yMCQkpmoS10QbFZWl2Oor4H0Me64Pu2yxvsRWK3m6soJbmGfzSR7BYmDcWAA==", + "engines": { + "node": "*" + } + }, "node_modules/y18n": { "version": "5.0.8", "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz", @@ -5659,9 +7045,61 @@ "version": "3.1.1", "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz", "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==", - "dev": true, "license": "ISC" }, + "node_modules/yamljs": { + "version": "0.3.0", + "resolved": "https://registry.npmjs.org/yamljs/-/yamljs-0.3.0.tgz", + "integrity": "sha512-C/FsVVhht4iPQYXOInoxUM/1ELSf9EsgKH34FofQOp6hwCPrW4vG4w5++TED3xRUo8gD7l0P1J1dLlDYzODsTQ==", + "dependencies": { + "argparse": "^1.0.7", + "glob": "^7.0.5" + }, + "bin": { + "json2yaml": "bin/json2yaml", + "yaml2json": "bin/yaml2json" + } + }, + "node_modules/yamljs/node_modules/brace-expansion": { + "version": "1.1.12", + "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz", + "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==", + "dependencies": { + "balanced-match": "^1.0.0", + "concat-map": "0.0.1" + } + }, + "node_modules/yamljs/node_modules/glob": { + "version": "7.2.3", + "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz", + "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==", + "deprecated": "Glob versions prior to v9 are no longer supported", + "dependencies": { + "fs.realpath": "^1.0.0", + "inflight": "^1.0.4", + "inherits": "2", + "minimatch": "^3.1.1", + "once": "^1.3.0", + "path-is-absolute": "^1.0.0" + }, + "engines": { + "node": "*" + }, + "funding": { + "url": "https://github.com/sponsors/isaacs" + } + }, + "node_modules/yamljs/node_modules/minimatch": { + "version": "3.1.2", + "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz", + "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==", + "dependencies": { + "brace-expansion": "^1.1.7" + }, + "engines": { + "node": "*" + } + }, "node_modules/yargs": { "version": "17.7.2", "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz", diff --git a/package.json b/package.json index 2c45a6b7..361dc4b3 100644 --- a/package.json +++ b/package.json @@ -36,11 +36,12 @@ "express-oauth2-jwt-bearer": "~1.7.1", "express-urlrewrite": "~2.0.3", "mongodb": "~6.20.0", - "morgan": "~1.10.1" + "morgan": "~1.10.1", + "pm2-cluster-cache": "^2.1.7" }, "devDependencies": { - "jest": "^30.2.0", "@jest/globals": "^30.2.0", + "jest": "^30.2.0", "supertest": "^7.1.4" } } diff --git a/routes/_gog_fragments_from_manuscript.js b/routes/_gog_fragments_from_manuscript.js index d1f30193..48b295c4 100644 --- a/routes/_gog_fragments_from_manuscript.js +++ b/routes/_gog_fragments_from_manuscript.js @@ -3,9 +3,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { cacheGogFragments } from '../cache/middleware.js' router.route('/') - .post(auth.checkJwt, controller._gog_fragments_from_manuscript) + .post(auth.checkJwt, cacheGogFragments, controller._gog_fragments_from_manuscript) .all((req, res, next) => { res.statusMessage = 'Improper request method. Please use POST.' res.status(405) diff --git a/routes/_gog_glosses_from_manuscript.js b/routes/_gog_glosses_from_manuscript.js index e5c57659..fbffb284 100644 --- a/routes/_gog_glosses_from_manuscript.js +++ b/routes/_gog_glosses_from_manuscript.js @@ -3,9 +3,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { cacheGogGlosses } from '../cache/middleware.js' router.route('/') - .post(auth.checkJwt, controller._gog_glosses_from_manuscript) + .post(auth.checkJwt, cacheGogGlosses, controller._gog_glosses_from_manuscript) .all((req, res, next) => { res.statusMessage = 'Improper request method. Please use POST.' res.status(405) diff --git a/routes/api-routes.js b/routes/api-routes.js index e5cdc743..636b12bd 100644 --- a/routes/api-routes.js +++ b/routes/api-routes.js @@ -44,6 +44,8 @@ import releaseRouter from './release.js'; import sinceRouter from './since.js'; // Support GET requests like v1/history/{object id} to discover all previous versions tracing back to the prime. import historyRouter from './history.js'; +// Cache management endpoints +import { cacheStats, cacheClear } from '../cache/middleware.js' router.use(staticRouter) router.use('/id',idRouter) @@ -60,6 +62,8 @@ router.use('/api/patch', patchRouter) router.use('/api/set', setRouter) router.use('/api/unset', unsetRouter) router.use('/api/release', releaseRouter) +router.get('/api/cache/stats', cacheStats) +router.post('/api/cache/clear', cacheClear) // Set default API response router.get('/api', (req, res) => { res.json({ @@ -73,7 +77,8 @@ router.get('/api', (req, res) => { "/delete": "DELETE - Mark an object as deleted.", "/query": "POST - Supply a JSON object to match on, and query the db for an array of matches.", "/release": "POST - Lock a JSON object from changes and guarantee the content and URI.", - "/overwrite": "POST - Update a specific document in place, overwriting the existing body." + "/overwrite": "POST - Update a specific document in place, overwriting the existing body.", + "/cache/stats": "GET - View cache statistics and performance metrics." } }) }) diff --git a/routes/bulkCreate.js b/routes/bulkCreate.js index 8eb2fc90..b7647466 100644 --- a/routes/bulkCreate.js +++ b/routes/bulkCreate.js @@ -5,9 +5,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .post(auth.checkJwt, controller.bulkCreate) + .post(auth.checkJwt, invalidateCache, controller.bulkCreate) .all((req, res, next) => { res.statusMessage = 'Improper request method for creating, please use POST.' res.status(405) diff --git a/routes/bulkUpdate.js b/routes/bulkUpdate.js index f7fad3fa..06bf478c 100644 --- a/routes/bulkUpdate.js +++ b/routes/bulkUpdate.js @@ -5,9 +5,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .put(auth.checkJwt, controller.bulkUpdate) + .put(auth.checkJwt, invalidateCache, controller.bulkUpdate) .all((req, res, next) => { res.statusMessage = 'Improper request method for creating, please use PUT.' res.status(405) diff --git a/routes/create.js b/routes/create.js index 97b86975..b4f09515 100644 --- a/routes/create.js +++ b/routes/create.js @@ -4,9 +4,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .post(auth.checkJwt, controller.create) + .post(auth.checkJwt, invalidateCache, controller.create) .all((req, res, next) => { res.statusMessage = 'Improper request method for creating, please use POST.' res.status(405) diff --git a/routes/delete.js b/routes/delete.js index 7e747ff3..3f74c4a0 100644 --- a/routes/delete.js +++ b/routes/delete.js @@ -3,9 +3,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .delete(auth.checkJwt, controller.deleteObj) + .delete(auth.checkJwt, invalidateCache, controller.deleteObj) .all((req, res, next) => { res.statusMessage = 'Improper request method for deleting, please use DELETE.' res.status(405) @@ -13,7 +14,7 @@ router.route('/') }) router.route('/:_id') - .delete(auth.checkJwt, controller.deleteObj) + .delete(auth.checkJwt, invalidateCache, controller.deleteObj) .all((req, res, next) => { res.statusMessage = 'Improper request method for deleting, please use DELETE.' res.status(405) diff --git a/routes/history.js b/routes/history.js index 06470da0..cd2b8142 100644 --- a/routes/history.js +++ b/routes/history.js @@ -2,9 +2,10 @@ import express from 'express' const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' +import { cacheHistory } from '../cache/middleware.js' router.route('/:_id') - .get(controller.history) + .get(cacheHistory, controller.history) .head(controller.historyHeadRequest) .all((req, res, next) => { res.statusMessage = 'Improper request method, please use GET.' diff --git a/routes/id.js b/routes/id.js index 3c2e8988..fa918833 100644 --- a/routes/id.js +++ b/routes/id.js @@ -2,9 +2,10 @@ import express from 'express' const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' +import { cacheId } from '../cache/middleware.js' router.route('/:_id') - .get(controller.id) + .get(cacheId, controller.id) .head(controller.idHeadRequest) .all((req, res, next) => { res.statusMessage = 'Improper request method, please use GET.' diff --git a/routes/overwrite.js b/routes/overwrite.js index 08b54fd7..f3564eea 100644 --- a/routes/overwrite.js +++ b/routes/overwrite.js @@ -4,9 +4,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .put(auth.checkJwt, controller.overwrite) + .put(auth.checkJwt, invalidateCache, controller.overwrite) .all((req, res, next) => { res.statusMessage = 'Improper request method for overwriting, please use PUT to overwrite this object.' res.status(405) diff --git a/routes/patchSet.js b/routes/patchSet.js index ff67ec1a..e653e971 100644 --- a/routes/patchSet.js +++ b/routes/patchSet.js @@ -4,10 +4,11 @@ const router = express.Router() import controller from '../db-controller.js' import auth from '../auth/index.js' import rest from '../rest.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .patch(auth.checkJwt, controller.patchSet) - .post(auth.checkJwt, (req, res, next) => { + .patch(auth.checkJwt, invalidateCache, controller.patchSet) + .post(auth.checkJwt, invalidateCache, (req, res, next) => { if (rest.checkPatchOverrideSupport(req, res)) { controller.patchSet(req, res, next) } diff --git a/routes/patchUnset.js b/routes/patchUnset.js index 6bdf0b65..ec878488 100644 --- a/routes/patchUnset.js +++ b/routes/patchUnset.js @@ -4,10 +4,11 @@ const router = express.Router() import controller from '../db-controller.js' import auth from '../auth/index.js' import rest from '../rest.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .patch(auth.checkJwt, controller.patchUnset) - .post(auth.checkJwt, (req, res, next) => { + .patch(auth.checkJwt, invalidateCache, controller.patchUnset) + .post(auth.checkJwt, invalidateCache, (req, res, next) => { if (rest.checkPatchOverrideSupport(req, res)) { controller.patchUnset(req, res, next) } diff --git a/routes/patchUpdate.js b/routes/patchUpdate.js index 5df088bf..239ffa58 100644 --- a/routes/patchUpdate.js +++ b/routes/patchUpdate.js @@ -5,10 +5,11 @@ const router = express.Router() import controller from '../db-controller.js' import rest from '../rest.js' import auth from '../auth/index.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .patch(auth.checkJwt, controller.patchUpdate) - .post(auth.checkJwt, (req, res, next) => { + .patch(auth.checkJwt, invalidateCache, controller.patchUpdate) + .post(auth.checkJwt, invalidateCache, (req, res, next) => { if (rest.checkPatchOverrideSupport(req, res)) { controller.patchUpdate(req, res, next) } diff --git a/routes/putUpdate.js b/routes/putUpdate.js index d9397122..5db3643d 100644 --- a/routes/putUpdate.js +++ b/routes/putUpdate.js @@ -4,9 +4,10 @@ const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' import auth from '../auth/index.js' +import { invalidateCache } from '../cache/middleware.js' router.route('/') - .put(auth.checkJwt, controller.putUpdate) + .put(auth.checkJwt, invalidateCache, controller.putUpdate) .all((req, res, next) => { res.statusMessage = 'Improper request method for updating, please use PUT to update this object.' res.status(405) diff --git a/routes/query.js b/routes/query.js index 61c33c9b..00008498 100644 --- a/routes/query.js +++ b/routes/query.js @@ -2,9 +2,10 @@ import express from 'express' const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' +import { cacheQuery } from '../cache/middleware.js' router.route('/') - .post(controller.query) + .post(cacheQuery, controller.query) .head(controller.queryHeadRequest) .all((req, res, next) => { res.statusMessage = 'Improper request method for requesting objects with matching properties. Please use POST.' diff --git a/routes/search.js b/routes/search.js index 2053bf5a..7641d945 100644 --- a/routes/search.js +++ b/routes/search.js @@ -1,9 +1,10 @@ import express from 'express' const router = express.Router() import controller from '../db-controller.js' +import { cacheSearch, cacheSearchPhrase } from '../cache/middleware.js' router.route('/') - .post(controller.searchAsWords) + .post(cacheSearch, controller.searchAsWords) .all((req, res, next) => { res.statusMessage = 'Improper request method for search. Please use POST.' res.status(405) @@ -11,7 +12,7 @@ router.route('/') }) router.route('/phrase') - .post(controller.searchAsPhrase) + .post(cacheSearchPhrase, controller.searchAsPhrase) .all((req, res, next) => { res.statusMessage = 'Improper request method for search. Please use POST.' res.status(405) diff --git a/routes/since.js b/routes/since.js index e0f7a841..e6929d7a 100644 --- a/routes/since.js +++ b/routes/since.js @@ -2,9 +2,10 @@ import express from 'express' const router = express.Router() //This controller will handle all MongoDB interactions. import controller from '../db-controller.js' +import { cacheSince } from '../cache/middleware.js' router.route('/:_id') - .get(controller.since) + .get(cacheSince, controller.since) .head(controller.sinceHeadRequest) .all((req, res, next) => { res.statusMessage = 'Improper request method, please use GET.'