package org.jboss.resource.adapter.jms;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.ObjectMessage;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;
import org.jboss.logging.Logger;
public class JmsMessageConsumer implements MessageConsumer
{
private static final Logger log = Logger.getLogger(JmsMessageConsumer.class);
MessageConsumer consumer;
JmsSession session;
private boolean trace = log.isTraceEnabled();
public JmsMessageConsumer(MessageConsumer consumer, JmsSession session)
{
this.consumer = consumer;
this.session = session;
if (trace)
log.trace("new JmsMessageConsumer " + this + " consumer=" + consumer + " session=" + session);
}
public void close() throws JMSException
{
if (trace)
log.trace("close " + this);
try
{
closeConsumer();
}
finally
{
session.removeConsumer(this);
}
}
public MessageListener getMessageListener() throws JMSException
{
session.checkStrict();
return consumer.getMessageListener();
}
public String getMessageSelector() throws JMSException
{
return consumer.getMessageSelector();
}
public Message receive() throws JMSException
{
if (trace)
log.trace("receive " + this);
Message message = consumer.receive();
if (trace)
log.trace("received " + this + " result=" + message);
if (message == null)
return null;
else
return wrapMessage(message);
}
public Message receive(long timeout) throws JMSException
{
if (trace)
log.trace("receive " + this + " timeout=" + timeout);
Message message = consumer.receive(timeout);
if (trace)
log.trace("received " + this + " result=" + message);
if (message == null)
return null;
else
return wrapMessage(message);
}
public Message receiveNoWait() throws JMSException
{
if (trace)
log.trace("receiveNoWait " + this);
Message message = consumer.receiveNoWait();
if (trace)
log.trace("received " + this + " result=" + message);
if (message == null)
return null;
else
return wrapMessage(message);
}
public void setMessageListener(MessageListener listener) throws JMSException
{
session.checkStrict();
if (listener == null)
consumer.setMessageListener(null);
else
consumer.setMessageListener(wrapMessageListener(listener));
}
void closeConsumer() throws JMSException
{
consumer.close();
}
Message wrapMessage(Message message)
{
if (message instanceof BytesMessage)
return new JmsBytesMessage((BytesMessage) message, session);
else if (message instanceof MapMessage)
return new JmsMapMessage((MapMessage) message, session);
else if (message instanceof ObjectMessage)
return new JmsObjectMessage((ObjectMessage) message, session);
else if (message instanceof StreamMessage)
return new JmsStreamMessage((StreamMessage) message, session);
else if (message instanceof TextMessage)
return new JmsTextMessage((TextMessage) message, session);
return new JmsMessage(message, session);
}
MessageListener wrapMessageListener(MessageListener listener)
{
return new JmsMessageListener(listener, this);
}
}