BooleanValidator.java
/*
* Copyright (c) 2019, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except
* in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.synapse.commons.json.jsonprocessor.validators;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import org.apache.synapse.commons.json.jsonprocessor.constants.ValidatorConstants;
import org.apache.synapse.commons.json.jsonprocessor.exceptions.ParserException;
import org.apache.synapse.commons.json.jsonprocessor.exceptions.ValidatorException;
import org.apache.synapse.commons.json.jsonprocessor.utils.DataTypeConverter;
/**
* This class validate boolean values against a given schema.
*/
public class BooleanValidator {
// Use without instantiating.
private BooleanValidator() {
}
/**
* Validate a boolean string according to a given schema.
*
* @param inputObject json schema.
* @param value boolean string.
* @return JsonPrimitive contains the parsed boolean.
* @throws ValidatorException exception occurs in validation.
* @throws ParserException exception occurs when parsing.
*/
public static JsonPrimitive validateBoolean(JsonObject inputObject, String value) throws ValidatorException,
ParserException {
if (value == null) {
throw new ValidatorException("Received null input to be validated with : " +
inputObject.toString() + ". Expected a boolean but found null");
}
Boolean parsedValue = DataTypeConverter.convertToBoolean(value);
// Enum validations
if (inputObject.has(ValidatorConstants.ENUM)) {
JsonArray enumElements = inputObject.getAsJsonArray(ValidatorConstants.ENUM);
if (enumElements.size() > 0 && !enumElements.contains(new JsonPrimitive(parsedValue))) {
throw new ValidatorException("input \"" + value + "\" not contains any " +
"element from the enum : " + enumElements.toString());
}
}
//Const validation
if (inputObject.has(ValidatorConstants.CONST) && !parsedValue.equals(inputObject.getAsJsonPrimitive
(ValidatorConstants.CONST).getAsBoolean())) {
throw new ValidatorException("String \"" + value + "\" is not equal to the const" +
" value");
}
return new JsonPrimitive(parsedValue);
}
}