A List Apart: for 
people who make websites

Using XML.

Transform Timing Program

This is a Java program used to time the performance of the Xalan XSLT processor.


/*
 * 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 "XSLT4J" 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 [email protected]
 *
 * 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.stream.StreamSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerConfigurationException;


// Imported java classes
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import java.util.Date;

/**
 *  Use the TraX interface to perform a transformation in the simplest manner possible
 *  (3 statements).
 */
public class SimpleTransform
{
	public static void main(String[] args)
    throws TransformerException, TransformerConfigurationException, 
           FileNotFoundException, IOException
  { 
	long start_time = new Date().getTime();
	long start_transform_time;
	long end_time;

  // Use the static TransformerFactory.newInstance() method to instantiate 
  // a TransformerFactory. The javax.xml.transform.TransformerFactory 
  // system property setting determines the actual class to instantiate --
  // org.apache.xalan.transformer.TransformerImpl.
	TransformerFactory tFactory = TransformerFactory.newInstance();
	
	// Use the TransformerFactory to instantiate a Transformer that will work with  
	// the stylesheet you specify. This method call also processes the stylesheet
  // into a compiled Templates object.
	Transformer transformer = tFactory.newTransformer(new StreamSource(args[1]));

	// Use the Transformer to apply the associated Templates object to an XML document
	// (foo.xml) and write the output to a file (foo.out).
	start_transform_time = new Date().getTime();
	
	transformer.transform(new StreamSource(args[0]), new StreamResult(new FileOutputStream(args[2])));
	end_time = new Date().getTime();
	System.out.println("Total msec to generate " + args[2] + ": " +
		(end_time-start_time) +
		" transform time: " + (end_time - start_transform_time) );
  }
}