/*
* 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 java.util.concurrent.ConcurrentHashMap;
import org.exoplatform.commons.serialization.MarshalledObject;
import org.exoplatform.portal.mop.Described;
import org.exoplatform.portal.pom.config.POMSession;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
*/
public class SimpleDataCache extends DataCache {
/** . */
private final ConcurrentHashMap<MarshalledObject<CacheKey>, MarshalledObject<CacheValue>> map;
public SimpleDataCache() {
this.map = new ConcurrentHashMap<MarshalledObject<CacheKey>, MarshalledObject<CacheValue>>();
}
@Override
protected Described.State getState(POMSession session, CacheKey key) {
MarshalledObject<CacheKey> marshalledKey = MarshalledObject.marshall(key);
MarshalledObject<CacheValue> marshalledValue = map.get(marshalledKey);
if (marshalledValue == null) {
CacheValue value = getValue(session, key);
if (value != null) {
map.put(marshalledKey, MarshalledObject.marshall(value));
return value.state;
} else {
return null;
}
} else {
return marshalledValue.unmarshall().state;
}
}
@Override
protected void removeState(CacheKey key) {
map.remove(MarshalledObject.marshall(key));
}
@Override
protected void putValue(CacheKey key, CacheValue value) {
map.put(MarshalledObject.marshall(key), MarshalledObject.marshall(value));
}
}