JSON

public class main {
    // First we create a parser to read the validator specification which is
    // defined using the (what did you think) JSON format.
    // The validator definition is located in the "my-validator.json" resource in the
    // class path.
    JSONParser lParser =
            new JSONParser (
                    main.class.getResourceAsStream("my-validator.json"));

    // We parse the validator spec and convert it into a Java representation.
    JSONObject lValidatorObject = (JSONObject) lParser.nextValue();
    // Finally we can convert our validator using the Java model.

    Validator lValidator = new JSONValidator(lValidatorObject);

    // And now that you have the validator, you can start validating your data.

    // First we create a parser to read the data.
    JSONParser lParser = new JSONParser(main.class.getResourceAsStream("data.json"));

    // We parse the datafile and convert it into a Java representation.
    JSONValue lMyData = lParser.nextValue();

    // Now we can use the validator to check on our data. We can test if the data has the
    // correct format or not.
    lValidator.validate(lMyData);
}