/*
* Copyright (C) 2009 eXo Platform SAS.
*
* 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.exoplatform.services.jcr.impl.core.lock;
import org.exoplatform.services.jcr.impl.proccess.WorkerService;
import java.util.concurrent.ScheduledFuture;
/**
* Created by The eXo Platform SAS.
*
* @author <a href="mailto:Sergey.Kabashnyuk@gmail.com">Sergey Kabashnyuk</a>
* @version $Id: LockRemover.java 11987 2008-03-17 09:06:06Z ksm $
*/
public class LockRemover
{
public static final long DEFAULT_THREAD_TIMEOUT = 30000; // 30 sec
private final WorkerService workerService;
private final WorkspaceLockManager lockManager;
private final long timeout;
private ScheduledFuture<?> lockRemoverTask = null;
class LockRemoverTask implements Runnable
{
private final WorkspaceLockManager lockManager;
LockRemoverTask(WorkspaceLockManager lockManager)
{
this.lockManager = lockManager;
}
public void run()
{
lockManager.removeExpired();
}
}
protected LockRemover(WorkerService workerService, WorkspaceLockManager lockManager)
{
this(workerService, lockManager, DEFAULT_THREAD_TIMEOUT);
}
protected LockRemover(WorkerService workerService, WorkspaceLockManager lockManager, long timeout)
{
this.workerService = workerService;
this.lockManager = lockManager;
this.timeout = timeout;
}
public void start()
{
if (lockRemoverTask == null)
{
lockRemoverTask = workerService.executePeriodically(new LockRemoverTask(lockManager), timeout);
}
}
public void stop()
{
lockRemoverTask.cancel(false);
lockRemoverTask = null;
}
}