/*
* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 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 "Apache" and "Apache Software Foundation" and
* "Apache JMeter" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache JMeter", 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. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.jmeter.engine;
import java.util.*;
import org.apache.jmeter.samplers.SampleListener;
import org.apache.jmeter.threads.JMeterThread;
import org.apache.jmeter.threads.ThreadGroup;
import org.apache.jmeter.timers.Timer;
import org.apache.log4j.*;
/**
* This engine automatically increments the threads used for sampling
* until selected threshold is reached.
*
* @author Khor Soon HIn
* @created 2001/08/26
* @version 1.0
*/
public class IncrementalJMeterEngine extends StandardJMeterEngine
{
private static Category catClass =
Category.getInstance(IncrementalJMeterEngine.class.getName());
protected int threadStartCount = 0;
protected int threadEndCount = 3;
/**
* Constructor
**/
public IncrementalJMeterEngine()
{
super();
catClass.debug("Start : IncrementalJMeterEngine1");
catClass.debug("End : IncrementalJMeterEngine1");
}
/**
* Get the number of threads to start
*
* @return number of threads to start sampling with
*/
public int getThreadStartCount()
{
return threadStartCount;
}
/**
* Set the number of threads to start
*
* @param number of threads to start sampling with
*/
public void setThreadStartCount(int number)
{
threadStartCount = number;
}
/**
* Get the number of threads to sample until
*
* @return number of threads to sample until
*/
public int getThreadEndCount()
{
return threadEndCount;
}
/**
* Set the number of threads to sample until
*
* @param number of threads to sample until
*/
public void setThreadEndCount(int number)
{
threadEndCount = number;
}
/**
* Run the engine
**/
public void runTest()
{
catClass.debug("Start : runTest1");
running = true;
int threadCount = 0;
if(catClass.isDebugEnabled())
{
catClass.debug("runTest1 : Threads at start - " + threadStartCount);
catClass.debug("runTest1 : Threads at end - " + threadEndCount);
}
// for each thread group, generate threads
// hand each thread the sampler controller
// and the listeners, and the timer
JMeterThread[] threads;
// keep track of all the threads generated
Thread[] threadList;
Iterator iter = threadGroups.iterator();
while(iter.hasNext())
{
ThreadGroup group = (ThreadGroup)iter.next();
threadCount = threadStartCount;
while(threadCount <= threadEndCount)
{
if(catClass.isDebugEnabled())
{
catClass.debug("runTest1 : Current thread being generate - " + threadCount);
}
threads = new JMeterThread[threadCount];
threadList = new Thread[threadCount];
for(int i = 0; i < threads.length; i++)
{
threads[i] = new JMeterThread(group);
threadList[i] = new Thread(threads[i],
"Total Thread : " + threadCount + " ; Thead No. : " + i);
allThreads.add(threads[i]);
threadList[i].start();
}
// wait for all threads to finish before starting the next batch
for(int i = 0; i < threadCount; i++)
{
try
{
threadList[i].join();
}
catch(InterruptedException e)
{
// carry on
}
}
threadCount++;
}
}
catClass.debug("End : runTest1");
}
}