/**
* Copyright (c) 2011 Yahoo! Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you
* may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License. See accompanying
* LICENSE file.
*/
package com.yahoo.ycsb;
import java.util.Vector;
/**
* A thread that waits for the maximum specified time and then interrupts all the client
* threads passed as the Vector at initialization of this thread.
*
* The maximum execution time passed is assumed to be in seconds.
*
* @author sudipto
*
*/
public class TerminatorThread extends Thread {
private Vector<Thread> threads;
private long maxExecutionTime;
private Workload workload;
private long waitTimeOutInMS;
public TerminatorThread(long maxExecutionTime, Vector<Thread> threads,
Workload workload) {
this.maxExecutionTime = maxExecutionTime;
this.threads = threads;
this.workload = workload;
waitTimeOutInMS = 2000;
System.err.println("Maximum execution time specified as: " + maxExecutionTime + " secs");
}
public void run() {
try {
Thread.sleep(maxExecutionTime * 1000);
} catch (InterruptedException e) {
System.err.println("Could not wait until max specified time, TerminatorThread interrupted.");
return;
}
System.err.println("Maximum time elapsed. Requesting stop for the workload.");
workload.requestStop();
System.err.println("Stop requested for workload. Now Joining!");
for (Thread t : threads) {
while (t.isAlive()) {
try {
t.join(waitTimeOutInMS);
if (t.isAlive()) {
System.err.println("Still waiting for thread " + t.getName() + " to complete. " +
"Workload status: " + workload.isStopRequested());
t.stop();
break;
}
} catch (InterruptedException e) {
// Do nothing. Don't know why I was interrupted.
}
}
}
}
}