/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jms.resource;
import com.caucho.config.ConfigException;
import com.caucho.jms.queue.AbstractDestination;
import com.caucho.jms.JmsConnectionFactory;
import com.caucho.services.message.MessageSender;
import com.caucho.services.message.MessageServiceException;
import com.caucho.util.L10N;
import com.caucho.util.Log;
import javax.annotation.*;
import javax.jms.*;
import java.util.HashMap;
import java.util.logging.Logger;
/**
* Configures message senders, avoiding JCA.
*/
public class MessageSenderResource implements MessageSender {
private static final L10N L = new L10N(MessageSenderResource.class);
private static final Logger log
= Logger.getLogger(MessageSenderResource.class.getName());
private ConnectionFactory _connFactory;
private Connection _conn;
private Destination _destination;
public MessageSenderResource()
{
}
/**
* Sets the JMS connection factory.
*
* @param factory
*/
public void setConnectionFactory(ConnectionFactory factory)
{
_connFactory = factory;
}
/**
* Sets the JMS Destination (Queue or Topic)
*
* @param destination
*/
public void setDestination(Destination destination)
{
_destination = destination;
}
/**
* Initialize the sender resource.
*
* @throws JMSException
* @throws ConfigException
*/
@PostConstruct
public void init() throws JMSException, ConfigException
{
if (_destination == null)
throw new ConfigException(L.l("'destination' required for message sender."));
if (_connFactory == null && _destination instanceof AbstractDestination)
_connFactory = new JmsConnectionFactory();
if (_connFactory == null)
throw new ConfigException(L.l("'connection-factory' required for message sender"));
_conn = _connFactory.createConnection();
if (_conn == null)
throw new NullPointerException();
}
/**
* Sends a message to the destination
*
* @param header
* @param value
* @throws MessageServiceException
*/
public void send(HashMap header, Object value)
throws MessageServiceException
{
try {
Session session = getSession();
try {
Message message;
if (value == null) {
message = session.createMessage();
}
else if (value instanceof String) {
message = session.createTextMessage((String) value);
}
else if (value instanceof java.io.Serializable) {
ObjectMessage objMessage = session.createObjectMessage();
objMessage.setObject((java.io.Serializable) value);
message = objMessage;
}
else {
throw new MessageServiceException(L.l("value '{0}' must be serializable",
value));
}
MessageProducer producer = session.createProducer(_destination);
producer.send(message);
producer.close();
} finally {
session.close();
}
} catch (MessageServiceException e) {
throw e;
} catch (Exception e) {
throw new MessageServiceException(e);
}
}
/**
* Returns the JMS session.
*/
private Session getSession() throws JMSException
{
return _conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
}
}