DataTypeConverter.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.utils;
import org.apache.synapse.commons.json.jsonprocessor.constants.ValidatorConstants;
import org.apache.synapse.commons.json.jsonprocessor.exceptions.ParserException;
/**
* Handle data type conversions for JSON parser.
*/
public class DataTypeConverter {
// use without instantiating
private DataTypeConverter() {
}
public static Boolean convertToBoolean(String value) throws ParserException {
if (value != null && !value.isEmpty()) {
value = JsonProcessorUtils.replaceEnclosingQuotes(value);
if (value.equals("true") || value.equals("false")) {
return Boolean.parseBoolean(value);
}
throw new ParserException("Cannot convert the sting : " + value + " to boolean");
}
throw new ParserException("Cannot convert an empty string to boolean");
}
public static int convertToInt(String value) throws ParserException {
if (value != null && !value.isEmpty()) {
value = JsonProcessorUtils.replaceEnclosingQuotes(value);
try {
return Integer.parseInt(value.trim());
} catch (NumberFormatException nfe) {
throw new ParserException("NumberFormatException: " + nfe.getMessage(), nfe);
}
}
throw new ParserException("Empty value cannot convert to int");
}
public static double convertToDouble(String value) throws ParserException {
if (value != null && !value.isEmpty()) {
value = JsonProcessorUtils.replaceEnclosingQuotes(value);
try {
return Double.parseDouble(value.trim());
} catch (NumberFormatException nfe) {
throw new ParserException("NumberFormatException: " + nfe.getMessage(), nfe);
}
}
throw new ParserException("Empty value cannot convert to double");
}
}