/*
* Copyright (c) 2005, The Regents of the University of California, through
* Lawrence Berkeley National Laboratory (subject to receipt of any required
* approvals from the U.S. Dept. of Energy). 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 University of California, Lawrence Berkeley
* National Laboratory, U.S. Dept. of Energy 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
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* You are under no obligation whatsoever to provide any bug fixes, patches, or
* upgrades to the features, functionality or performance of the source code
* ("Enhancements") to anyone; however, if you choose to make your Enhancements
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package nux.xom.sandbox;
import java.io.File;
import java.io.FileWriter;
import nu.xom.Builder;
import nu.xom.Document;
import nux.xom.pool.DocumentMap;
import nux.xom.pool.PoolConfig;
/**
* Stress test for file change monitoring of DocumentMap. Determines how much
* overhead File.lastModified() has when monitoring thousands or tens of
* thousands of files.
*
* @author whoschek@lbl.gov
* @author $Author: hoschek3 $
* @version $Revision: 1.2 $, $Date: 2005/11/30 00:22:09 $
*/
final class DocumentMapFileMonitorTest {
public static void main(String[] args) throws Exception {
System.setProperty("nux.xom.pool.Pool.debug", "true"); // watch evictions
// System.setProperty("nux.xom.pool.PoolConfig.invalidationPeriod", "5000");
final PoolConfig config = new PoolConfig();
int k = -1;
int numFiles = 1000;
if (args.length > ++k) numFiles = Math.max(1, Integer.parseInt(args[k]));
int threads = 1;
if (args.length > ++k) threads = Math.max(1, Integer.parseInt(args[k]));
if (args.length > ++k) config.setCompressionLevel(Integer.parseInt(args[k]));
if (args.length > ++k) config.setMaxEntries(Integer.parseInt(args[k]));
if (args.length > ++k) config.setFileMonitoring(new Boolean(args[k]).booleanValue());
if (args.length > ++k) config.setCapacity(Long.parseLong(args[k]));
if (args.length > ++k) config.setMaxIdleTime(Long.parseLong(args[k]));
if (args.length > ++k) config.setMaxLifeTime(Long.parseLong(args[k]));
final DocumentMap pool = new DocumentMap(config);
final File[] files = new File[numFiles];
new File("tmp").mkdir();
for (int j=0; j < numFiles; j++) {
files[j] = new File("tmp/file" + j + ".xml");
System.out.println("writing " + files[j]);
FileWriter out = new FileWriter(files[j]);
out.write("<hello/>");
out.flush();
out.close();
}
for (int j=0; j < threads; j++) {
final int t = j;
Runnable runner = new Runnable() {
public void run() {
try {
Builder builder = new Builder();
int i = 0;
while (i < files.length) {
System.out.println("t="+ t + ", index="+i);
Document doc = builder.build(files[i]);
Object key = files[i];
pool.putDocument(key, doc);
i++;
}
System.out.println("done");
}
catch (Throwable t) {
t.printStackTrace();
System.exit(-1);
}
}
};
new Thread(runner).start();
}
Thread.sleep(Long.MAX_VALUE); // wait forever
}
}