/*
* Copyright (C) 2011 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.portal.mop.description;
import org.exoplatform.commons.cache.future.FutureExoCache;
import org.exoplatform.commons.cache.future.Loader;
import org.exoplatform.portal.mop.Described;
import org.exoplatform.portal.pom.config.POMSession;
import org.exoplatform.services.cache.CacheService;
import org.exoplatform.services.cache.ExoCache;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
*/
public class ExoDataCache extends DataCache
{
/** . */
protected ExoCache<CacheKey, CacheValue> cache;
/** . */
protected FutureExoCache<CacheKey, CacheValue, POMSession> values;
/** . */
private Loader<CacheKey, CacheValue, POMSession> valueLoader = new Loader<CacheKey, CacheValue, POMSession>()
{
public CacheValue retrieve(POMSession session, CacheKey key) throws Exception
{
return getValue(session, key);
}
};
public ExoDataCache(CacheService cacheService)
{
this.cache = cacheService.getCacheInstance(DescriptionService.class.getSimpleName());
this.values = new FutureExoCache<CacheKey, CacheValue, POMSession>(valueLoader, cache)
{
@Override
protected void put(CacheKey key, CacheValue entry)
{
// Do nothing on purpose
// as data in inserted with the putValue method
// during the getValue method
}
};
}
@Override
protected void removeState(CacheKey key)
{
cache.remove(key);
}
@Override
protected Described.State getState(POMSession session, CacheKey key)
{
CacheValue value = values.get(session, key);
return value != null ? value.state : null;
}
@Override
protected void putValue(CacheKey key, CacheValue value)
{
cache.put(key, value);
}
}