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/***
* ASM XML Adapter
* Copyright (c) 2004, Eugene Kuleshov
* 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. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
*/
package org.objectweb.asm.xml;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
/**
* Performance test suite for ASM XML
*
* @author Eugene Kuleshov
*/
public class XMLPerfTest {
private static final String[] ENGINES = {
"jd.xml.xslt.trax.TransformerFactoryImpl",
"net.sf.saxon.TransformerFactoryImpl",
"org.apache.xalan.processor.TransformerFactoryImpl", };
private static final String[] TEMPLATES = {
"copy.xsl",
"linenumbers.xsl",
"profile.xsl", };
public static void main(final String[] args) throws Exception {
System.err.println("Comparing XSLT performance for ASM XSLT");
System.err.println("This may take 20 to 30 minutes\n");
File examplesDir = new File(args[0]);
if (!examplesDir.isDirectory()) {
System.err.println(args[0] + " must be directory");
return;
}
// File[] templates = examplesDir.listFiles(new FilenameFilter() {
// public boolean accept(File dir, String name) {
// return name.endsWith(".xsl");
// }
// });
for (int i = 0; i < ENGINES.length; i++) {
System.err.println(ENGINES[i]);
process(null, ENGINES[i]);
for (int j = 0; j < TEMPLATES.length; j++) {
process(new File(examplesDir, TEMPLATES[j]).getAbsolutePath(),
ENGINES[i]);
}
System.err.println();
}
}
private static void process(final String name, final String engine)
throws Exception
{
System.setProperty("javax.xml.transform.TransformerFactory", engine);
processRep(name, Processor.BYTECODE);
processRep(name, Processor.MULTI_XML);
processRep(name, Processor.SINGLE_XML);
}
// private static void processEntry(
// String className,
// TransformerHandler handler) throws Exception
// {
// byte[] classData = getCode(new URL(className).openStream());
// ByteArrayOutputStream bos = new ByteArrayOutputStream();
//
// handler.setResult(new SAXResult(new ASMContentHandler(bos, false)));
//
// ClassReader cr = new ClassReader(classData);
// cr.accept(new SAXClassAdapter(handler, cr.getVersion(), false), false);
// }
//
// private static byte[] getCode(InputStream is) throws IOException {
// ByteArrayOutputStream bos = new ByteArrayOutputStream();
// byte[] buff = new byte[1024];
// int n = -1;
// while ((n = is.read(buff)) > -1)
// bos.write(buff, 0, n);
// return bos.toByteArray();
// }
private static void processRep(final String name, final int outRep) {
long l1 = System.currentTimeMillis();
int n = 0;
try {
Class c = XMLPerfTest.class;
String u = c.getResource("/java/lang/String.class").toString();
final InputStream is = new BufferedInputStream(new URL(u.substring(4,
u.indexOf('!'))).openStream());
final OutputStream os = new IgnoringOutputStream();
final StreamSource xslt = name == null
? null
: new StreamSource(new FileInputStream(name));
Processor p = new DotObserver(Processor.BYTECODE,
outRep,
is,
os,
xslt);
n = p.process();
} catch (Exception ex) {
System.err.println();
// ex.printStackTrace();
System.err.println(ex);
}
long l2 = System.currentTimeMillis();
System.err.println();
System.err.println(" " + outRep + " " + name + " " + (l2 - l1)
+ "ms " + 1000f * n / (l2 - l1));
// SAXTransformerFactory saxtf = (SAXTransformerFactory)
// TransformerFactory.newInstance();
// Templates templates = saxtf.newTemplates(xslt);
//
// ZipEntry ze = null;
// int max = 10000;
// while ((ze = zis.getNextEntry()) != null && max > 0) {
// if (ze.getName().endsWith(".class")) {
// processEntry(u.substring(0, n + 2).concat(ze.getName()),
// saxtf.newTransformerHandler(templates));
// max--;
// }
// }
}
private static final class DotObserver extends Processor {
private int n = 0;
public DotObserver(
final int inRepresenation,
final int outRepresentation,
final InputStream input,
final OutputStream output,
final Source xslt)
{
super(inRepresenation, outRepresentation, input, output, xslt);
}
public void update(final Object arg) {
n++;
if (n % 1000 == 0) {
System.err.print("" + n / 1000);
} else if (n % 100 == 0) {
System.err.print(".");
}
}
}
private static final class IgnoringOutputStream extends OutputStream {
public final void write(final int b) throws IOException {
}
public final void write(final byte[] b) throws IOException {
}
public final void write(final byte[] b, final int off, final int len)
throws IOException
{
}
}
}
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