org.jspringbot.keyword.xml.XMLFormatter Maven / Gradle / Ivy
/*
* Copyright (c) 2012. JSpringBot. All Rights Reserved.
*
* See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The JSpringBot 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.jspringbot.keyword.xml;
import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.XMLSerializer;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
/**
* XML formatter class.
*/
public class XMLFormatter {
public static String prettyPrint(Element el) {
try {
StringWriter out = new StringWriter();
StreamResult outputTarget = new StreamResult(out);
DOMSource source = new DOMSource(el);
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.transform(source, outputTarget);
return prettyPrint(out.getBuffer().toString());
} catch(Exception e) {
throw new RuntimeException(e);
}
}
public static String prettyPrint(String unformattedXml) {
try {
Document doc = parseXmlFile(unformattedXml);
OutputFormat format = new OutputFormat(parseXmlFile(unformattedXml));
format.setLineWidth(65);
format.setIndenting(true);
format.setIndent(2);
format.setOmitXMLDeclaration(true);
Writer out = new StringWriter();
XMLSerializer serializer = new XMLSerializer(out, format);
serializer.serialize(doc);
return out.toString();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
private static Document parseXmlFile(String in) {
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource(new StringReader(in));
return db.parse(is);
} catch (ParserConfigurationException e) {
throw new RuntimeException(e);
} catch (SAXException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}