/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jetspeed.components.portletregistry;
import java.util.List;
import java.util.Properties;
import org.apache.jetspeed.cache.CacheElement;
import org.apache.jetspeed.cache.DistributedCacheObject;
import org.apache.jetspeed.cache.JetspeedCache;
import org.apache.jetspeed.cache.impl.EhCacheElementImpl;
import org.apache.jetspeed.om.portlet.PortletApplication;
import org.apache.ojb.broker.Identity;
import org.apache.ojb.broker.PersistenceBroker;
import org.apache.ojb.broker.cache.ObjectCache;
/**
* OJB cache
*
* @author dtaylor
*
*/
public class RegistryApplicationCache implements ObjectCache
{
private static JetspeedCache oidCache;
private static JetspeedCache nameCache;
private static PortletRegistry registry;
private static List listeners = null;
public RegistryApplicationCache(PersistenceBroker broker, Properties props)
{
}
public synchronized static void cacheInit(PortletRegistry r, JetspeedCache o, JetspeedCache n, List l)
{
registry = r;
oidCache = o;
nameCache = n;
listeners = l;
}
public Object lookup(Identity oid)
{
return cacheLookup(oid);
}
public synchronized static Object cacheLookup(Identity oid)
{
CacheElement element = oidCache.get(oid);
if (element != null)
{
return element.getContent();
}
return null;
}
/* (non-Javadoc)
* @see org.apache.ojb.broker.cache.ObjectCache#cache(org.apache.ojb.broker.Identity, java.lang.Object)
*/
public void cache(Identity oid, Object obj)
{
cacheAdd(oid, obj);
}
public synchronized static void cacheAdd(Identity oid, Object obj)
{
oidCache.remove(oid);
CacheElement entry = new EhCacheElementImpl(oid, obj);
oidCache.put(entry);
PortletApplication pa = (PortletApplication)obj;
DistributedCacheObject wrapper = new RegistryCacheObjectWrapper(oid, pa.getName());
nameCache.remove(pa.getName());
CacheElement nameEntry = nameCache.createElement(pa.getName(), wrapper);
nameCache.put(nameEntry);
if (listeners != null)
{
for (int ix=0; ix < listeners.size(); ix++)
{
RegistryEventListener listener = (RegistryEventListener)listeners.get(ix);
listener.applicationUpdated((PortletApplication)obj);
}
}
}
/* (non-Javadoc)
* @see org.apache.ojb.broker.cache.ObjectCache#clear()
*/
public void clear()
{
cacheClear();
}
public synchronized static void cacheClear()
{
oidCache.clear();
nameCache.clear();
}
/* (non-Javadoc)
* @see org.apache.ojb.broker.cache.ObjectCache#remove(org.apache.ojb.broker.Identity)
*/
public void remove(Identity oid)
{
cacheRemove(oid);
}
/**
* cacheRemove
*
* Remove identified object from object and node caches.
*
* @param oid object identity
*/
public synchronized static void cacheRemove(Identity oid)
{
PortletApplication pd = (PortletApplication)cacheLookup(oid);
if (pd == null)
return;
oidCache.remove(oid);
nameCache.remove(pd.getName());
if (listeners != null)
{
for (int ix=0; ix < listeners.size(); ix++)
{
RegistryEventListener listener = (RegistryEventListener)listeners.get(ix);
listener.applicationRemoved(pd);
}
}
}
public synchronized static void cacheRemoveQuiet(String key, RegistryCacheObjectWrapper w)
{
RegistryCacheObjectWrapper wrapper = w;
if (wrapper == null)
{
CacheElement cacheElement = nameCache.get(key);
if (cacheElement != null)
{
wrapper = (RegistryCacheObjectWrapper) cacheElement.getContent();
}
}
if (wrapper == null)
{
return;
}
Identity oid = wrapper.getId();
PortletApplication pd = (PortletApplication)cacheLookup(oid);
if (pd == null)
return;
oidCache.removeQuiet(oid);
nameCache.removeQuiet(pd.getName());
}
}