/*
* CommitmentJobManager.java
*
* This file is part of the STS-Tool project.
* Copyright (c) 2011-2012 "University of Trento - DISI" All rights reserved.
*
* Is strictly forbidden to remove this copyright notice from this source code.
*
* Disclaimer of Warranty:
* STS-Tool (this software) is provided "as-is" and without warranty of any kind,
* express, implied or otherwise, including without limitation, any warranty of
* merchantability or fitness for a particular purpose.
* In no event shall the copyright holder or 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 program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* "University of Trento - DISI","University of Trento - DISI" DISCLAIMS THE
* WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://www.sts-tool.eu/License.php
*
* For more information, please contact STS-Tool group at this
* address: ststool@disi.unitn.it
*
*/
package eu.aniketos.wp1.ststool.commitments.manager;
import java.lang.Thread.State;
import java.util.LinkedList;
import java.util.Queue;
import org.eclipse.swt.widgets.Display;
public class CommitmentJobManager {
private Queue<CommitmentsJob> q = new LinkedList<CommitmentsJob>();
private Thread t = null;
private Runnable runnable;
private CommitmentJobManager() {
super();
runnable = new CommitmentJobManagerRunnable();
}
private static CommitmentJobManager INSTANCE = null;
static CommitmentJobManager getInstrance(){
if (INSTANCE == null) {
INSTANCE = new CommitmentJobManager();
}
return INSTANCE;
}
public void addAndExecuteJob(CommitmentsJob job){
q.offer(job);
if (t == null || t.getState().equals(State.TERMINATED)) {
t = new Thread(runnable, "Commitment JobManager");
t.start();
}
}
private class CommitmentJobManagerRunnable implements Runnable {
@Override
public void run(){
while (!q.isEmpty()) {
final CommitmentsJob job = q.remove();
try {
Thread.sleep(job.getJobDelay());
} catch (InterruptedException e) {
e.printStackTrace();
}
Display.getDefault().syncExec(job);
while (!job.isTerminated()) {
try {
Thread.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
}