/*
* Copyright (c) 1998-2011 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 SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jms;
import com.caucho.jms.memory.*;
import com.caucho.jms.message.*;
import com.caucho.jms.connection.*;
import com.caucho.jms.connection.ConnectionFactoryImpl;
import com.caucho.util.L10N;
import javax.jms.*;
import java.util.logging.Logger;
import java.util.logging.Level;
/**
* JMS facade
*/
public class Jms
{
private static final Logger log
= Logger.getLogger(Jms.class.getName());
private static final L10N L = new L10N(Jms.class);
private ConnectionFactoryImpl _connectionFactory;
private Connection _conn;
private MessageFactory _messageFactory = new MessageFactory();
public Jms()
{
try {
_connectionFactory = new ConnectionFactoryImpl();
_conn = _connectionFactory.createConnection();
_conn.start();
} catch (JMSException e) {
throw new JmsRuntimeException(e);
}
}
public void send(Destination dest, Message msg)
{
Session session = null;
try {
session = getSession();
MessageProducer producer = session.createProducer(null);
producer.send(dest, msg);
} catch (JMSException e) {
} finally {
freeSession(session);
}
}
public void send(Destination dest,
Message msg,
int deliveryMode,
int priority,
long ttl)
{
Session session = null;
try {
session = getSession();
MessageProducer producer = session.createProducer(null);
producer.send(dest, msg, deliveryMode, priority, ttl);
} catch (JMSException e) {
} finally {
freeSession(session);
}
}
public Message receive(Destination dest)
{
Session session = null;
MessageConsumer consumer = null;
try {
session = getSession();
consumer = session.createConsumer(dest);
return consumer.receive();
} catch (JMSException e) {
throw new RuntimeException(e);
} finally {
try {
if (consumer != null)
consumer.close();
} catch (JMSException e) {
log.log(Level.FINE, e.toString(), e);
}
freeSession(session);
}
}
public Message receive(Destination dest, long timeout)
{
Session session = null;
MessageConsumer consumer = null;
try {
session = getSession();
consumer = session.createConsumer(dest);
return consumer.receive(timeout);
} catch (JMSException e) {
throw new RuntimeException(e);
} finally {
try {
if (consumer != null)
consumer.close();
} catch (JMSException e) {
log.log(Level.FINE, e.toString(), e);
}
freeSession(session);
}
}
public Message receiveNoWait(Destination dest)
{
Session session = null;
MessageConsumer consumer = null;
try {
session = getSession();
consumer = session.createConsumer(dest);
return consumer.receiveNoWait();
} catch (JMSException e) {
throw new RuntimeException(e);
} finally {
try {
if (consumer != null)
consumer.close();
} catch (JMSException e) {
log.log(Level.FINE, e.toString(), e);
}
freeSession(session);
}
}
/**
* Creates an auto-ack session.
*/
public Session createSession()
throws JmsRuntimeException
{
try {
return _conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
} catch (JMSException e) {
throw new JmsRuntimeException(e);
}
}
public Connection createConnection()
{
try {
return _connectionFactory.createConnection();
} catch (JMSException e) {
throw new JmsRuntimeException(e);
}
}
/**
* Creates a session and listener.
*/
public Session createListener(Connection conn,
Destination queue,
MessageListener listener)
throws JmsRuntimeException
{
try {
Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageConsumer consumer = session.createConsumer(queue);
consumer.setMessageListener(listener);
return session;
} catch (JMSException e) {
throw new JmsRuntimeException(e);
}
}
private Session getSession()
throws JMSException
{
Session session = _conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
return session;
}
private void freeSession(Session session)
{
try {
if (session != null)
session.close();
} catch (JMSException e) {
throw new JmsRuntimeException(e);
}
}
public TextMessage createTextMessage(String msg)
{
try {
return _messageFactory.createTextMessage(msg);
} catch (JMSException e) {
throw new JmsRuntimeException(e);
}
}
}