/*
* Copyright (c) 2009 Lockheed Martin Corporation
*
* Licensed 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.eurekastreams.server.search.indexing;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Session;
import org.hibernate.search.backend.impl.jms.AbstractJMSHibernateSearchController;
/**
* MDBSearchController - listens to a JMS queue to index updated entities.
*/
public class MDBSearchController extends AbstractJMSHibernateSearchController implements MessageListener
{
/**
* Entity Manager.
*/
private EntityManager entityManager;
/**
* Set the entity manager to use for all ORM operations.
*
* @param inEntityManager
* the EntityManager to use for all ORM operations.
*/
@PersistenceContext
public void setEntityManager(final EntityManager inEntityManager)
{
this.entityManager = inEntityManager;
}
/**
* Local log instance.
*/
private static Log logger = LogFactory.getLog(MDBSearchController.class);
/**
* Clean the session if necessary.
*
* @param inSession
* the session
*/
@Override
protected void cleanSessionIfNeeded(final Session inSession)
{
// no-op
}
/**
* Log that we received the message.
*
* @param inMessage
* the message captured
*/
public void onMessage(final Message inMessage)
{
if (logger.isDebugEnabled())
{
try
{
logger.debug("Picked up message with JMS Message ID: " + inMessage.getJMSMessageID());
}
catch (JMSException e)
{
// do nothing
int i = 0;
i++;
}
}
super.onMessage(inMessage);
}
/**
* Get the session from the injected EntityManager.
*
* @return the session from the EntityManager
*/
@Override
protected Session getSession()
{
return (Session) entityManager.getDelegate();
}
}