/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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.
*/
/*
* $Id: DOM2DOM.java,v 1.8 2004/02/17 19:06:27 minchau Exp $
*/
import java.io.FileNotFoundException;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import org.apache.xml.serializer.Serializer;
import org.apache.xml.serializer.SerializerFactory;
import org.apache.xml.serializer.OutputPropertiesFactory;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
/**
* Show how to transform a DOM tree into another DOM tree.
* This uses the javax.xml.parsers to parse both an XSL file
* and the XML file into a DOM, and create an output DOM.
*/
public class DOM2DOM
{
public static void main(String[] args)
throws TransformerException, TransformerConfigurationException, FileNotFoundException,
ParserConfigurationException, SAXException, IOException
{
TransformerFactory tFactory = TransformerFactory.newInstance();
if(tFactory.getFeature(DOMSource.FEATURE) && tFactory.getFeature(DOMResult.FEATURE))
{
//Instantiate a DocumentBuilderFactory.
DocumentBuilderFactory dFactory = DocumentBuilderFactory.newInstance();
// And setNamespaceAware, which is required when parsing xsl files
dFactory.setNamespaceAware(true);
//Use the DocumentBuilderFactory to create a DocumentBuilder.
DocumentBuilder dBuilder = dFactory.newDocumentBuilder();
//Use the DocumentBuilder to parse the XSL stylesheet.
Document xslDoc = dBuilder.parse("birds.xsl");
// Use the DOM Document to define a DOMSource object.
DOMSource xslDomSource = new DOMSource(xslDoc);
// Set the systemId: note this is actually a URL, not a local filename
xslDomSource.setSystemId("birds.xsl");
// Process the stylesheet DOMSource and generate a Transformer.
Transformer transformer = tFactory.newTransformer(xslDomSource);
//Use the DocumentBuilder to parse the XML input.
Document xmlDoc = dBuilder.parse("birds.xml");
// Use the DOM Document to define a DOMSource object.
DOMSource xmlDomSource = new DOMSource(xmlDoc);
// Set the base URI for the DOMSource so any relative URIs it contains can
// be resolved.
xmlDomSource.setSystemId("birds.xml");
// Create an empty DOMResult for the Result.
DOMResult domResult = new DOMResult();
// Perform the transformation, placing the output in the DOMResult.
transformer.transform(xmlDomSource, domResult);
//Instantiate an Xalan XML serializer and use it to serialize the output DOM to System.out
// using a default output format.
Serializer serializer = SerializerFactory.getSerializer
(OutputPropertiesFactory.getDefaultMethodProperties("xml"));
serializer.setOutputStream(System.out);
serializer.asDOMSerializer().serialize(domResult.getNode());
}
else
{
throw new org.xml.sax.SAXNotSupportedException("DOM node processing not supported!");
}
}
}