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JanHolgerJanHolger
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Implemented schema validation tools
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10 files changed

+708
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‎src/main/java/org/javawebstack/abstractdata/AbstractPath.java‎

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package org.javawebstack.abstractdata;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Objects;
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public class AbstractPath {
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public static final AbstractPath ROOT = new AbstractPath(null, null);
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private final AbstractPath parent;
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private final String name;
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public AbstractPath(String name) {
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this(ROOT, name);
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if(name == null || name.isEmpty())
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throw new IllegalArgumentException("Name can not be null or empty");
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}
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private AbstractPath(AbstractPath parent, String name) {
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this.parent = parent;
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this.name = name;
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}
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public String getName() {
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return name;
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}
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public AbstractPath getParent() {
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return parent;
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}
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public AbstractPath subPath(String name) {
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return new AbstractPath(this, name);
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}
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public AbstractPath clone() {
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return new AbstractPath(
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this.parent != null ? this.parent.clone() : null,
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name
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);
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}
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public AbstractPath concat(AbstractPath path) {
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AbstractPath cloned = clone();
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for(String part : path.getParts())
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cloned = cloned.subPath(part);
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return cloned;
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}
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public List<String> getParts() {
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List<String> parts = parent != null ? parent.getParts() : new ArrayList<>();
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if(name != null)
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parts.add(name);
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return parts;
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}
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public String toString() {
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return String.join(".", getParts());
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}
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public static AbstractPath parse(String s) {
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s = s.trim();
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if(s.isEmpty())
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return ROOT;
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String[] spl = s.split("\\.");
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AbstractPath path = new AbstractPath(spl[0]);
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for(int i=1; i<spl.length; i++) {
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String sub = spl[i];
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if(sub.isEmpty())
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throw new IllegalArgumentException("Invalid empty sub-path");
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path = path.subPath(spl[i]);
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}
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return path;
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}
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public boolean equals(Object obj) {
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if(!(obj instanceof AbstractPath))
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return false;
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AbstractPath other = (AbstractPath) obj;
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if(parent != null) {
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if(!parent.equals(other.parent))
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return false;
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} else {
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if(other.parent != null)
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return false;
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}
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if(name == null)
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return other.name == null;
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return name.equals(other.name);
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}
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public int hashCode() {
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return Objects.hash(parent, name);
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}
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}

‎src/main/java/org/javawebstack/abstractdata/schema/AbstractArraySchema.java‎

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package org.javawebstack.abstractdata.schema;
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import org.javawebstack.abstractdata.AbstractArray;
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import org.javawebstack.abstractdata.AbstractElement;
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import org.javawebstack.abstractdata.AbstractPath;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Locale;
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public class AbstractArraySchema implements AbstractSchema {
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private AbstractSchema itemSchema;
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private Integer min;
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private Integer max;
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private boolean allowNull = false;
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private final List<CustomValidation<AbstractArray>> customValidations = new ArrayList<>();
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public AbstractArraySchema itemSchema(AbstractSchema schema) {
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this.itemSchema = schema;
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return this;
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}
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public AbstractArraySchema min(int min) {
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this.min = min;
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return this;
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}
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public AbstractArraySchema max(int max) {
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this.max = max;
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return this;
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}
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public AbstractArraySchema allowNull() {
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this.allowNull = true;
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return this;
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}
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public AbstractArraySchema customValidation(CustomValidation<AbstractArray> validation) {
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customValidations.add(validation);
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return this;
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}
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public AbstractSchema getItemSchema() {
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return itemSchema;
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}
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public Integer getMin() {
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return min;
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}
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public Integer getMax() {
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return max;
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}
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public List<CustomValidation<AbstractArray>> getCustomValidations() {
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return customValidations;
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}
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public List<SchemaValidationError> validate(AbstractPath path, AbstractElement value) {
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List<SchemaValidationError> errors = new ArrayList<>();
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if(value.getType() != AbstractElement.Type.ARRAY) {
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errors.add(new SchemaValidationError(path, "invalid_type").meta("expected", "array").meta("actual", value.getType().name().toLowerCase(Locale.ROOT)));
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return errors;
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}
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AbstractArray array = value.array();
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if(min != null && array.size() < min) {
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errors.add(new SchemaValidationError(path, "not_enough_items").meta("min", String.valueOf(min)).meta("actual", String.valueOf(array.size())));
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}
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if(max != null && array.size() > max) {
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errors.add(new SchemaValidationError(path, "too_many_items").meta("max", String.valueOf(max)).meta("actual", String.valueOf(array.size())));
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}
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if(itemSchema != null) {
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for(int i=0; i<array.size(); i++) {
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AbstractElement item = array.get(i);
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AbstractPath itemPath = path.subPath(String.valueOf(i));
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if(item.isNull()) {
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if(!allowNull) {
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errors.add(new SchemaValidationError(itemPath, "null_not_allowed"));
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}
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continue;
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}
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errors.addAll(itemSchema.validate(itemPath, array.get(i)));
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}
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}
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for(CustomValidation<AbstractArray> validation : customValidations) {
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errors.addAll(validation.validate(path, array));
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}
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return errors;
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}
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}

‎src/main/java/org/javawebstack/abstractdata/schema/AbstractBooleanSchema.java‎

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package org.javawebstack.abstractdata.schema;
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import org.javawebstack.abstractdata.AbstractElement;
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import org.javawebstack.abstractdata.AbstractPath;
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import org.javawebstack.abstractdata.AbstractPrimitive;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Locale;
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public class AbstractBooleanSchema implements AbstractSchema {
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private Boolean staticValue;
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private final List<CustomValidation<AbstractPrimitive>> customValidations = new ArrayList<>();
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public AbstractBooleanSchema staticValue(boolean value) {
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this.staticValue = value;
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return this;
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}
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public AbstractBooleanSchema customValidation(CustomValidation<AbstractPrimitive> validation) {
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customValidations.add(validation);
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return this;
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}
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public Boolean getStaticValue() {
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return staticValue;
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}
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public List<CustomValidation<AbstractPrimitive>> getCustomValidations() {
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return customValidations;
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}
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public List<SchemaValidationError> validate(AbstractPath path, AbstractElement value) {
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List<SchemaValidationError> errors = new ArrayList<>();
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if(value.getType() != AbstractElement.Type.BOOLEAN) {
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errors.add(new SchemaValidationError(path, "invalid_type").meta("expected", "boolean").meta("actual", value.getType().name().toLowerCase(Locale.ROOT)));
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return errors;
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}
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if(staticValue != null && staticValue != value.bool()) {
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errors.add(new SchemaValidationError(path, "invalid_static_value").meta("expected", staticValue.toString()).meta("actual", value.bool().toString()));
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}
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for(CustomValidation<AbstractPrimitive> validation : customValidations) {
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errors.addAll(validation.validate(path, value.primitive()));
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}
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return errors;
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}
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}

‎src/main/java/org/javawebstack/abstractdata/schema/AbstractNumberSchema.java‎

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package org.javawebstack.abstractdata.schema;
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import org.javawebstack.abstractdata.AbstractElement;
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import org.javawebstack.abstractdata.AbstractPath;
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import org.javawebstack.abstractdata.AbstractPrimitive;
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import java.math.BigDecimal;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Locale;
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public class AbstractNumberSchema implements AbstractSchema {
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private boolean integerOnly = false;
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private Number min;
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private Number max;
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private final List<CustomValidation<AbstractPrimitive>> customValidations = new ArrayList<>();
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public AbstractNumberSchema min(Number min) {
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this.min = min;
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return this;
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}
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public AbstractNumberSchema max(Number max) {
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this.max = max;
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return this;
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}
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public AbstractNumberSchema integerOnly() {
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this.integerOnly = true;
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return this;
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}
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public AbstractNumberSchema customValidation(CustomValidation<AbstractPrimitive> validation) {
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customValidations.add(validation);
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return this;
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}
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public Number getMin() {
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return min;
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}
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public Number getMax() {
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return max;
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}
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public boolean isIntegerOnly() {
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return integerOnly;
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}
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public List<CustomValidation<AbstractPrimitive>> getCustomValidations() {
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return customValidations;
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}
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public List<SchemaValidationError> validate(AbstractPath path, AbstractElement value) {
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List<SchemaValidationError> errors = new ArrayList<>();
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if(value.getType() != AbstractElement.Type.NUMBER) {
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errors.add(new SchemaValidationError(path, "invalid_type").meta("expected", integerOnly ? "integer" : "number").meta("actual", value.getType().name().toLowerCase(Locale.ROOT)));
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return errors;
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}
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Number n = value.number();
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BigDecimal dN = (n instanceof Float || n instanceof Double) ? BigDecimal.valueOf(n.doubleValue()) : BigDecimal.valueOf(n.longValue());
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if(integerOnly && (n instanceof Float || n instanceof Double)) {
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errors.add(new SchemaValidationError(path, "invalid_type").meta("expected", "integer").meta("actual", "number"));
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return errors;
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}
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if(min != null) {
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BigDecimal dMin = (min instanceof Float || min instanceof Double) ? BigDecimal.valueOf(min.doubleValue()) : BigDecimal.valueOf(min.longValue());
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if(dN.compareTo(dMin) < 0) {
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errors.add(new SchemaValidationError(path, "number_smaller_than_min").meta("min", dMin.toPlainString()).meta("actual", dN.toPlainString()));
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}
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}
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if(max != null) {
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BigDecimal dMax = (max instanceof Float || min instanceof Double) ? BigDecimal.valueOf(max.doubleValue()) : BigDecimal.valueOf(max.longValue());
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if(dN.compareTo(dMax) > 0) {
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errors.add(new SchemaValidationError(path, "number_larger_than_max").meta("max", dMax.toPlainString()).meta("actual", dN.toPlainString()));
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}
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}
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for(CustomValidation<AbstractPrimitive> validation : customValidations) {
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errors.addAll(validation.validate(path, value.primitive()));
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}
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return errors;
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}
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}

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