/*

  * Copyright 2006-2008 The Kuali Foundation

  * 

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  * 

  * 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.kuali.rice.kns.util;

 import java.util.Properties;

 import org.apache.log4j.Logger;

 import org.apache.ojb.broker.Identity;

 import org.apache.ojb.broker.PersistenceBroker;

 import org.apache.ojb.broker.cache.ObjectCachePerBrokerImpl;

 public class KualiObjectCachePerBrokerImpl extends ObjectCachePerBrokerImpl {

     private static final Logger LOG = Logger.getLogger(KualiObjectCachePerBrokerImpl.class);

     private final String brokerId;

     public KualiObjectCachePerBrokerImpl(PersistenceBroker broker, Properties prop) {

         super(broker, prop);

         brokerId = broker.getClass().getName() + "@" + broker.hashCode();

         LOG.debug("created objectCache for broker " + brokerId);

     }

     /**

      * Clear ObjectCache. I.e. remove all entries for classes and objects.

      */

     public void clear() {

         super.clear();

         LOG.debug("cleared objectCache for broker " + brokerId);

     }

     /**

      * @see org.apache.ojb.broker.cache.ObjectCachePerBrokerImpl#cache(org.apache.ojb.broker.Identity, java.lang.Object)

      */

     public void cache(Identity oid, Object obj) {

         super.cache(oid, obj);

         boolean cached = (super.lookup(oid) != null);

         LOG.debug((cached ? "cached oid " : "unable to cache oid ") + oid + " in objectCache for broker " + brokerId);

     }

     /**

      * @see org.apache.ojb.broker.cache.ObjectCachePerBrokerImpl#cacheIfNew(org.apache.ojb.broker.Identity, java.lang.Object)

      */

     public boolean cacheIfNew(Identity oid, Object obj) {

         boolean cachedIfNew = super.cacheIfNew(oid, obj);

         boolean cached = (super.lookup(oid) != null);

         LOG.debug((cached ? "cached new oid " : "unable to cache new oid ") + oid + " in objectCache for broker " + brokerId);

         return cachedIfNew;

     }

     /**

      * @see org.apache.ojb.broker.cache.ObjectCachePerBrokerImpl#lookup(org.apache.ojb.broker.Identity)

      */

     public Object lookup(Identity oid) {

         Object o = super.lookup(oid);

         LOG.debug((o != null ? "found oid " : "cannot find oid ") + oid + " in objectCache for broker " + brokerId);

         return o;

     }

 }