/*
* Copyright (C) 2003-2010 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.services.jcr.impl.core.lock.cacheable;
import org.exoplatform.services.jcr.impl.core.SessionImpl;
import org.exoplatform.services.jcr.impl.core.lock.LockImpl;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.lock.LockException;
/**
* Created by The eXo Platform SAS.
*
* <br>Date:
*
* @author <a href="karpenko.sergiy@gmail.com">Karpenko Sergiy</a>
* @version $Id: CacheLockImpl.java 111 2008-11-11 11:11:11Z serg $
*/
public class CacheLockImpl extends LockImpl
{
private static final Log LOG = ExoLogger.getLogger("exo.jcr.component.core.CacheLockImpl");
private boolean live;
private LockData lockData;
private SessionImpl session;
private CacheableSessionLockManager lockManager;
/**
* Constructor.
*
* @param session - session owner
* @param lockData - LockData
* @param lockManager - CacheableLockManager
*/
public CacheLockImpl(SessionImpl session, LockData lockData, CacheableSessionLockManager lockManager)
{
this.lockData = lockData;
this.session = session;
this.lockManager = lockManager;
this.live = true;
}
/**
* {@inheritDoc}
*/
public String getLockOwner()
{
return lockData.getOwner();
}
/**
* {@inheritDoc}
*/
public String getLockToken()
{
return lockManager.getLockToken(lockData.getTokenHash());
}
/**
* {@inheritDoc}
*/
public boolean isLive() throws LockException
{
if (!live)
{
// it is already not alive
return false;
}
live = lockManager.isLockLive(lockData.getNodeIdentifier());
return live;
}
/**
* {@inheritDoc}
*/
public void refresh() throws LockException, RepositoryException
{
if (!isLive())
throw new LockException("Lock is not live");
LockData newLockData =
new LockData(lockData.getNodeIdentifier(), lockData.getTokenHash(), lockData.isDeep(), lockData
.isSessionScoped(), lockData.getOwner(), lockData.getTimeOut());
lockManager.refresh(newLockData);
lockData = newLockData;
}
/**
* {@inheritDoc}
*/
public Node getNode()
{
try
{
return (Node)session.getTransientNodesManager().getItemByIdentifier(lockData.getNodeIdentifier(), true);
}
catch (RepositoryException e)
{
LOG.error(e.getLocalizedMessage(), e);
}
return null;
}
/**
* {@inheritDoc}
*/
public boolean isDeep()
{
return lockData.isDeep();
}
/**
* {@inheritDoc}
*/
public boolean isSessionScoped()
{
return lockData.isSessionScoped();
}
/**
* {@inheritDoc}
*/
public long getTimeToDeath()
{
return lockData.getTimeToDeath();
}
/**
* {@inheritDoc}
*/
protected void setTimeOut(long timeOut) throws LockException
{
lockData.setTimeOut(timeOut);
//reset lock data
lockManager.refresh(lockData);
}
}