/**
* ================================================
* LibLoader : a free Java resource loading library
* ================================================
*
* Project Info: http://reporting.pentaho.org/libloader/
*
* (C) Copyright 2006, by Pentaho Corporation and Contributors.
*
* This library 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 library 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
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
*
* ------------
* $Id: OSResourceFactoryCache.java 3520 2007-10-16 10:34:47Z tmorgner $
* ------------
* (C) Copyright 2006, by Pentaho Corporation.
*/
package org.jfree.resourceloader.modules.cache.oscache;
import com.opensymphony.oscache.base.NeedsRefreshException;
import com.opensymphony.oscache.general.GeneralCacheAdministrator;
import org.jfree.resourceloader.Resource;
import org.jfree.resourceloader.ResourceKey;
import org.jfree.resourceloader.cache.ResourceFactoryCache;
import org.jfree.resourceloader.cache.CacheUtility;
/**
* Creation-Date: 13.04.2006, 16:30:34
*
* @author Thomas Morgner
*/
public class OSResourceFactoryCache implements ResourceFactoryCache
{
private GeneralCacheAdministrator factoryCache;
public OSResourceFactoryCache(final GeneralCacheAdministrator factoryCache)
{
if (factoryCache == null)
{
throw new NullPointerException();
}
this.factoryCache = factoryCache;
}
public Resource get(final ResourceKey key)
{
final String ext = CacheUtility.externalizeKey(key);
if (ext == null)
{
return null;
}
try
{
return (Resource) factoryCache.getFromCache(ext);
}
catch (NeedsRefreshException e)
{
factoryCache.cancelUpdate(ext);
factoryCache.removeEntry(ext);
return null;
}
}
public void put(final Resource resource)
{
final ResourceKey source = resource.getSource();
final String ext = CacheUtility.externalizeKey(source);
if (ext == null)
{
return;
}
factoryCache.putInCache(ext, resource);
}
public void remove(final Resource resource)
{
final ResourceKey source = resource.getSource();
final String ext = CacheUtility.externalizeKey(source);
if (ext == null)
{
return;
}
factoryCache.removeEntry(ext);
}
public void clear()
{
factoryCache.flushAll();
}
}