/*
* Copyright 2002-2012 the original author or authors.
*
* Licensed 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.springframework.integration.samples.travel;
import java.io.StringWriter;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import org.springframework.xml.transform.StringSource;
/**
* Provides utility methods for the Travel application.
*
* @author Gunnar Hillert
* @since 2.2
*
*/
public final class TravelUtils {
/**
* Private constructor to prevent instantiation.
*/
private TravelUtils() {
}
/**
* Prettifies XML data, e.g. add indentation.
*
* @param result The XML to prettify
* @return Prettified XML
* @throws Exception
*/
public static String formatXml(String result) throws Exception{
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", String.valueOf(2));
StreamResult streamResult = new StreamResult(new StringWriter());
Source source = new StringSource(result);
transformer.transform(source, streamResult);
String xmlString = streamResult.getWriter().toString();
return xmlString;
}
}