| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, Lotus |
| * Development Corporation., http://www.lotus.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| // Imported TraX classes |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.Templates; |
| import javax.xml.transform.stream.StreamSource; |
| import javax.xml.transform.stream.StreamResult; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.TransformerConfigurationException; |
| import javax.xml.transform.Result; |
| import javax.xml.transform.sax.SAXResult; |
| import javax.xml.transform.sax.SAXSource; |
| import javax.xml.transform.sax.SAXTransformerFactory; |
| import javax.xml.transform.sax.TemplatesHandler; |
| import javax.xml.transform.sax.TransformerHandler; |
| |
| // Imported SAX classes |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.Parser; |
| import org.xml.sax.helpers.ParserAdapter; |
| import org.xml.sax.helpers.XMLReaderFactory; |
| import org.xml.sax.XMLReader; |
| import org.xml.sax.XMLFilter; |
| import org.xml.sax.ContentHandler; |
| |
| // Imported DOM classes |
| import org.w3c.dom.Node; |
| |
| // Imported Serializer classes |
| import org.apache.xalan.serialize.Serializer; |
| import org.apache.xalan.serialize.SerializerFactory; |
| import org.apache.xalan.templates.OutputProperties; |
| |
| // Imported JAVA API for XML Parsing classes |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| |
| // Imported java.io classes |
| import java.io.InputStream; |
| import java.io.Reader; |
| import java.io.IOException; |
| |
| /** |
| * This example shows how to chain a series of transformations by |
| * piping SAX events from one Transformer to another. Each Transformer |
| * operates as a SAX2 XMLFilter/XMLReader. |
| */ |
| public class UseXMLFilters |
| { |
| public static void main(String[] args) |
| throws TransformerException, TransformerConfigurationException, |
| SAXException, IOException |
| { |
| // Instantiate a TransformerFactory. |
| TransformerFactory tFactory = TransformerFactory.newInstance(); |
| // Determine whether the TransformerFactory supports The use uf SAXSource |
| // and SAXResult |
| if (tFactory.getFeature(SAXSource.FEATURE) && tFactory.getFeature(SAXResult.FEATURE)) |
| { |
| // Cast the TransformerFactory to SAXTransformerFactory. |
| SAXTransformerFactory saxTFactory = ((SAXTransformerFactory) tFactory); |
| // Create an XMLFilter for each stylesheet. |
| XMLFilter xmlFilter1 = saxTFactory.newXMLFilter(new StreamSource("foo1.xsl")); |
| XMLFilter xmlFilter2 = saxTFactory.newXMLFilter(new StreamSource("foo2.xsl")); |
| XMLFilter xmlFilter3 = saxTFactory.newXMLFilter(new StreamSource("foo3.xsl")); |
| |
| // Create an XMLReader. |
| XMLReader reader = XMLReaderFactory.createXMLReader(); |
| |
| // xmlFilter1 uses the XMLReader as its reader. |
| xmlFilter1.setParent(reader); |
| |
| // xmlFilter2 uses xmlFilter1 as its reader. |
| xmlFilter2.setParent(xmlFilter1); |
| |
| // xmlFilter3 uses xmlFilter2 as its reader. |
| xmlFilter3.setParent(xmlFilter2); |
| |
| // xmlFilter3 outputs SAX events to the serializer. |
| Serializer serializer = SerializerFactory.getSerializer |
| (OutputProperties.getDefaultMethodProperties("xml")); |
| serializer.setOutputStream(System.out); |
| xmlFilter3.setContentHandler(serializer.asContentHandler()); |
| |
| // Perform the series of transformations as follows: |
| // - transformer3 gets its parent (transformer2) as the XMLReader/XMLFilter |
| // and calls transformer2.parse(new InputSource("foo.xml")). |
| // - transformer2 gets its parent (transformer1) as the XMLReader/XMLFilter |
| // and calls transformer1.parse(new InputSource("foo.xml")). |
| // - transformer1 gets its parent (reader, a SAXParser) as the XMLReader |
| // and calls reader.parse(new InputSource("foo.xml")). |
| // - reader parses the XML document and sends the SAX parse events to transformer1, |
| // which performs transformation 1 and sends the output to transformer2. |
| // - transformer2 parses the transformation 1 output, performs transformation 2, and |
| // sends the output to transformer3. |
| // - transformer3 parses the transformation 2 output, performs transformation 3, |
| // and sends the output to the serializer. |
| xmlFilter3.parse(new InputSource("foo.xml")); |
| } |
| } |
| } |