Add example code

Author: emmyzhou-db

examples/docs/src/main/java/com/databricks/example/GithubOIDCAuthExample.java

@@ -0,0 +1,42 @@
+package com.databricks.sdk.examples;
+
+import com.databricks.sdk.core.DatabricksConfig;
+import com.databricks.sdk.service.workspace.WorkspaceClient;
+
+/**
+ * Example demonstrating how to use GitHub OIDC authentication with Databricks.
+ * 
+ * This example assumes you have:
+ * 1. A Databricks workspace
+ * 2. A service principal configured with GitHub OIDC federation
+ * 3. The following environment variables set:
+ *    - DATABRICKS_HOST: Your Databricks workspace URL
+ *    - DATABRICKS_CLIENT_ID: Your service principal's client ID
+ *    - ACTIONS_ID_TOKEN_REQUEST_URL: GitHub Actions token request URL
+ *    - ACTIONS_ID_TOKEN_REQUEST_TOKEN: GitHub Actions token request token
+ */
+public class GithubOIDCAuthExample {
+    public static void main(String[] args) {
+        // Create Databricks configuration with GitHub OIDC authentication
+        DatabricksConfig config = new DatabricksConfig()
+            .setAuthType("github-oidc");
+
+        // Create a workspace client
+        WorkspaceClient workspace = new WorkspaceClient(config);
+
+        try {
+            // Test the authentication by getting the current user
+            var currentUser = workspace.currentUser().me();
+            System.out.println("Successfully authenticated as: " + currentUser.getUserName());
+            
+            // You can add more API calls here to test other functionality
+            // For example:
+            // var clusters = workspace.clusters().list();
+            // System.out.println("Available clusters: " + clusters);
+            
+        } catch (Exception e) {
+            System.err.println("Authentication failed: " + e.getMessage());
+            e.printStackTrace();
+        }
+    }
+}