A Java json schema validator that support json schema draft v4

• Why to use this library?
• Maven installation
• Quickstart

This project is an implementation of the JSON Schema Core Draft v4 specification. It uses the Jackson for json parsing.

• It is the fastest Java Json Schema Validator as far as I know. Here is the testing result compare with other two open source implementations. It is about 32 times faster than fge and 5 times faster than everit.

fge: 7130ms

everit-org: 1168ms

networknt: 223ms

You can run the performance tests for three libraries from https://github.com/networknt/json-schema-validator-perftest

• It uses jackson which is the most popular JSON parser in Java.

Add the following to your pom.xml:

<dependency>
    <groupId>com.networknt</groupId>
    <artifactId>json-schema-validator</artifactId>
    <version>0.1.0</version>
</dependency>

		JsonSchema schema = getJsonSchemaFromStringContent("{\"enum\":[1, 2, 3, 4],\"enumErrorCode\":\"Not in the list\"}");
		JsonNode node = getJsonNodeFromStringContent("7");
		Set<ValidationMessage> errors = schema.validate(node);
		assertThat(errors.size(), is(1));