| /* |
| * 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. |
| */ |
| /* |
| * $Id$ |
| */ |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerConfigurationException; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.stream.StreamResult; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import org.apache.xalan.trace.PrintTraceListener; |
| import org.apache.xalan.trace.TraceManager; |
| import org.apache.xalan.transformer.TransformerImpl; |
| |
| /** |
| * Sample for demonstrating Xalan "trace" interface. |
| * Usage: run in Trace directory: java Trace |
| * For an extensions trace sample, run in extensions |
| * directory: java Trace 3-java-namespace |
| */ |
| public class Trace |
| { |
| public static void main (String[] args) |
| throws java.io.IOException, |
| TransformerException, TransformerConfigurationException, |
| java.util.TooManyListenersException, |
| org.xml.sax.SAXException |
| { |
| String fileName = "foo"; |
| if (args.length > 0) |
| fileName = args[0]; |
| |
| // Set up a PrintTraceListener object to print to a file. |
| java.io.FileWriter fw = new java.io.FileWriter("events.log"); |
| java.io.PrintWriter pw = new java.io.PrintWriter(fw, true); |
| PrintTraceListener ptl = new PrintTraceListener(pw); |
| |
| // Print information as each node is 'executed' in the stylesheet. |
| ptl.m_traceElements = true; |
| // Print information after each result-tree generation event. |
| ptl.m_traceGeneration = true; |
| // Print information after each selection event. |
| ptl.m_traceSelection = true; |
| // Print information whenever a template is invoked. |
| ptl.m_traceTemplates = true; |
| // Print information whenever an extension call is made. |
| ptl.m_traceExtension = true; |
| |
| // Set up the transformation |
| TransformerFactory tFactory = TransformerFactory.newInstance(); |
| Transformer transformer = tFactory.newTransformer(new StreamSource(fileName + ".xsl")); |
| |
| // Cast the Transformer object to TransformerImpl. |
| if (transformer instanceof TransformerImpl) |
| { |
| TransformerImpl transformerImpl = (TransformerImpl)transformer; |
| // Register the TraceListener with a TraceManager associated |
| // with the TransformerImpl. |
| TraceManager trMgr = transformerImpl.getTraceManager(); |
| trMgr.addTraceListener(ptl); |
| |
| // Perform the transformation --printing information to |
| // the events log during the process. |
| transformer.transform |
| ( new StreamSource(fileName + ".xml"), |
| new StreamResult(new java.io.FileWriter(fileName + ".out")) ); |
| } |
| // Close the PrintWriter and FileWriter. |
| pw.close(); |
| fw.close(); |
| System.out.println("**The output is in " + fileName + ".out; the log is in events.log ****"); |
| |
| } |
| } |