DOM2DOM.java Source code

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Here is the source code for DOM2DOM.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF 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.
 */
/*
 * $Id: DOM2DOM.java 470245 2006-11-02 06:34:33Z minchau $
 */

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 the default output format, except for indent="yes"
            java.util.Properties xmlProps = OutputPropertiesFactory.getDefaultMethodProperties("xml");
            xmlProps.setProperty("indent", "yes");
            xmlProps.setProperty("standalone", "no");
            Serializer serializer = SerializerFactory.getSerializer(xmlProps);
            serializer.setOutputStream(System.out);
            serializer.asDOMSerializer().serialize(domResult.getNode());
        } else {
            throw new org.xml.sax.SAXNotSupportedException("DOM node processing not supported!");
        }
    }
}