/*
* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* questions.
*/
package sun.tools.jconsole;
import java.util.*;
public class Worker extends Thread {
ArrayList<Runnable> jobs = new ArrayList<Runnable>();
private boolean stopped = false;
public Worker(String name) {
super("Worker-"+name);
setPriority(NORM_PRIORITY - 1);
}
public void run() {
while (!isStopped()) {
Runnable job;
synchronized(jobs) {
while (!isStopped() && jobs.size() == 0) {
try {
jobs.wait();
} catch (InterruptedException ex) {
}
}
if(isStopped()) break;
job = jobs.remove(0);
}
job.run();
}
}
private synchronized boolean isStopped() {
return stopped;
}
public synchronized void stopWorker() {
stopped = true;
synchronized(jobs) {
jobs.notify();
}
}
public void add(Runnable job) {
synchronized(jobs) {
jobs.add(job);
jobs.notify();
}
}
public boolean queueFull() {
synchronized(jobs) {
return (jobs.size() > 0);
}
}
}