/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.test.invokers.test;
import java.rmi.RemoteException;
import javax.jms.QueueConnection;
import javax.jms.QueueSession;
import javax.jms.JMSException;
import javax.jms.QueueRequestor;
import javax.jms.Queue;
import javax.jms.Message;
import javax.jms.QueueConnectionFactory;
import javax.jms.ObjectMessage;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.jboss.proxy.Interceptor;
import org.jboss.invocation.Invoker;
import org.jboss.invocation.Invocation;
import org.jboss.invocation.InvocationContext;
import org.jboss.logging.Logger;
/** An example client side InvokerInterceptor used to dynamically override
* the default InvokerInterceptor coming from the server to install one that
* routes invocations to either the server side transport layer, or jms
* depending on the invocation.
*
* @author Scott.Stark@jboss.org
* @version $Revision: 81036 $
*/
public class InvokerInterceptor
extends Interceptor
{
private static Logger log = Logger.getLogger(InvokerInterceptor.class);
private transient QueueConnection queConn;
private transient QueueSession session;
private transient QueueRequestor requestor;
/**
*/
public Object invoke(Invocation invocation)
throws Exception
{
Object returnValue = null;
InvocationContext ctx = invocation.getInvocationContext();
String methodName = invocation.getMethod().getName();
if( methodName.equals("doSomethingSlowly") )
{
returnValue = sendRecvJMS(invocation);
}
else
{
// Get the
Invoker invoker = ctx.getInvoker();
returnValue = invoker.invoke(invocation);
// If this is a remove close the jms connection
if( methodName.equals("remove") )
{
try
{
if( requestor != null )
requestor.close();
if( session != null )
session.close();
if( queConn != null )
queConn.close();
}
catch(Exception e)
{
log.error("Failed to close jms", e);
}
}
}
return returnValue;
}
/**
* @param invocation
* @return The
*/
private synchronized Object sendRecvJMS(Invocation invocation)
throws RemoteException
{
Object reply = null;
log.info("sendRecvJMS");
try
{
if( queConn == null )
{
InitialContext ctx = null;
ctx = new InitialContext();
QueueConnectionFactory qcf = (QueueConnectionFactory) ctx.lookup("ConnectionFactory");
queConn = qcf.createQueueConnection();
queConn.start();
session = queConn.createQueueSession(false, QueueSession.AUTO_ACKNOWLEDGE);
Queue queue = (Queue) ctx.lookup("queue/A");
requestor = new QueueRequestor(session, queue);
}
// Send the invocation via jms
Message msg = session.createObjectMessage(invocation.getArguments());
msg.setStringProperty("ejbName", "BusinessSession");
ObjectMessage replyMsg = (ObjectMessage) requestor.request(msg);
reply = replyMsg.getObject();
}
catch (NamingException e)
{
log.error("sendRecvJMS", e);
throw new RemoteException("sendRecvJMS", e);
}
catch (JMSException e)
{
log.error("sendRecvJMS", e);
throw new RemoteException("sendRecvJMS", e);
}
return reply;
}
}