Add JSON Schema validation
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" output="target/classes" path="src/main/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="src" output="target/test-classes" path="src/test/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
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<classpathentry kind="output" path="target/classes"/>
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</classpath>
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>json</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.m2e.core.maven2Builder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.m2e.core.maven2Nature</nature>
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</natures>
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</projectDescription>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.baeldung</groupId>
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<artifactId>json</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<dependencies>
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<dependency>
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<groupId>org.everit.json</groupId>
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<artifactId>org.everit.json.schema</artifactId>
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<version>1.3.0</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>
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package org.baeldung.json.schema;
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import org.everit.json.schema.Schema;
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import org.everit.json.schema.ValidationException;
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import org.everit.json.schema.loader.SchemaLoader;
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import org.json.JSONObject;
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import org.json.JSONTokener;
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import org.junit.Test;
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public class JSONSchemaTest {
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@Test
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public void validateJSON() {
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JSONObject jsonSchema = new JSONObject(new JSONTokener(JSONSchemaTest.class.getResourceAsStream("/schema.json")));
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JSONObject jsonSubject = new JSONObject(new JSONTokener(JSONSchemaTest.class.getResourceAsStream("/product.json")));
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Schema schema = SchemaLoader.load(jsonSchema);
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try {
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schema.validate(jsonSubject);
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}
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catch (ValidationException e) {
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System.out.println(e.getMessage());
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e.getCausingExceptions().stream().map(ValidationException::getMessage).forEach(System.out::println);
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}
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}
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}
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{
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"id": 1,
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"name": "Lampshade",
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"price": 0
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}
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{
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"$schema": "http://json-schema.org/draft-04/schema#",
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"title": "Product",
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"description": "A product from the catalog",
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"type": "object",
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"properties": {
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"id": {
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"description": "The unique identifier for a product",
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"type": "integer"
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},
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"name": {
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"description": "Name of the product",
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"type": "string"
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},
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"price": {
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"type": "number",
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"minimum": 0,
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"exclusiveMinimum": true
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}
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},
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"required": ["id", "name", "price"]
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}
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