/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.test.tm.test;
import java.util.ArrayList;
import org.jboss.test.util.ejb.EJBTestCase;
/**
* Abstract concurrent stress test.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @version $Revision: 81036 $
*/
public class AbstractConcurrentStressTest extends EJBTestCase
{
private ArrayList done = new ArrayList();
private int total;
public interface ConcurrentTestCallback
{
void finished() throws Throwable;
}
public void runConcurrentTest(ConcurrentRunnable[] runnables, ConcurrentTestCallback callback) throws Throwable
{
total = runnables.length;
Thread[] threads = new Thread[total];
for (int i = 0; i < total; ++i)
{
threads[i] = new Thread(runnables[i], getName() + "-" + i);
threads[i].start();
}
for (int i = 0; i < total; ++i)
threads[i].join();
if (callback != null)
callback.finished();
for (int i = 0; i < total; ++i)
runnables[i].doCheck();
}
public abstract class ConcurrentRunnable implements Runnable
{
public Throwable failure;
public abstract void doStart();
public abstract void doRun();
public abstract void doEnd();
public void doCheck() throws Throwable
{
if (failure != null)
throw failure;
}
public void run()
{
doStart();
waitDone();
for (int i =0; i < getIterationCount(); ++i)
doRun();
waitDone();
doEnd();
waitDone();
}
}
protected synchronized void waitDone()
{
if (done.size() < total - 1)
{
done.add(this);
doWait();
}
else
{
for (int i = 0; i < done.size(); ++i)
done.get(i).notify();
done.clear();
}
}
protected void doWait()
{
boolean interrupted = false;
try
{
while (true)
{
try
{
wait();
return;
}
catch (InterruptedException e)
{
interrupted = true;
}
}
}
finally
{
if (interrupted)
Thread.currentThread().interrupt();
}
}
public AbstractConcurrentStressTest(String name)
{
super(name);
}
}