Hello!
Thank you for your respose. I've used lingo just for the client side. I
still have problems in setting the server side response. How can I set up the
server side in order to send a response to the client's message? More clear, I
have to know how to set up the client in order to be a sender not just a
consumer. I have made the following:
//on the servert side
public class SynchronizeListener implements MessageListener {
Session session;
public SynchronizeListener(Session session ){
this.session = session;
}
public void onMessage(Message msg) {
Message response = session
.createTextMessage("Replying from server for "
+ m.getObject());
response.setJMSCorrelationID(msg.getJMSCorrelationID());
producer = session.createProducer(msg.getJMSReplyTo());
producer.send(response);
}
}
}
This listener is added to the server side consumer. The JMS server is
starded from a servlet, and here is the code where I use the above class:
public class ApplicationInit implements ServletContextListener {
public void contextInitialized(ServletContextEvent e) {
BrokerService jmsServer = new BrokerService();
jmsServer.addConnector("tcp://localhost:61615");
jmsServer.addConnector("tcp://localhost:61616");
jmsServer.start();
ActiveMQConnectionFactory factory = new
ActiveMQConnectionFactory(
"tcp://localhost:61615");
Connection conn = factory.createConnection();
conn.start();
Session session = conn.createSession(true,
Session.AUTO_ACKNOWLEDGE);
Queue queue = session.createQueue("SYNCHRONIZE");
MessageConsumer listener =
session.createConsumer(queue);
listener.setMessageListener(new
AuditorSynchronizeListener(
session));
}
}
But when I start the client the following exception is thrown:
javax.jms.JMSException:
edu.emory.mathcs.backport.java.util.concurrent.TimeoutException
at
org.logicblaze.lingo.jms.impl.MultiplexingRequestor.createJMSException(MultiplexingRequestor.java:205)
at
org.logicblaze.lingo.jms.impl.MultiplexingRequestor.request(MultiplexingRequestor.java:133)
at
org.logicblaze.lingo.jms.impl.MultiplexingRequestor.request(MultiplexingRequestor.java:95)
at
Evicting inactive request for correlationID: Entry for key: 1
in the client code:
Queue messageQueue = session.createQueue("SYNCHRONIZE");
MessageProducer producer = session.createProducer(messageQueue);
producer.setTimeToLive(5000);
Destination tempDest = session
.createTemporaryQueue();
MultiplexingRequestor multp = new MultiplexingRequestor(conn,
session, producer, messageQueue, tempDest, true);
Message msg = null;
msg = session.createObjectMessage("Testing the client ");
System.out.println("received =" +multp.request(messageQueue,
msg));
James Strachan <[EMAIL PROTECTED]> wrote: If you want to learn how to use the
JMS API then Sun's JMS tutorial is
a pretty good start...
http://incubator.apache.org/activemq/how-do-i-get-started-with-jms.html
Alternatively you could stick to writing business level POJOs and hide
the middleware via Lingo which hides the JMS API from you letting you
focus on your business logic
http://lingo.codehaus.org/
On 10/3/06, Pico Florin
wrote:
> Hi, all!
> I'm newbie in using the activemq API and I have some problems in receiving
> a JMS message from a web server. Here is the scenario:
> I have a reach client who sends JMS messages to a web server (Tomcat) and
> it (the client) expects a reply from the server. I have read the
> documentation related to this subject from here:
>
> http://activemq.org/site/how-should-i-implement-request-response-with-jms.html
>
> but I'm a litlle bit confused because of this lines of code (bolded):
>
> //server side
>
> public void onMessage(Message request) { Message response =
> session.createMessage();
> response.setJMSCorrelationID(request.getJMSCorrelationID())
> producer.send(request.getJMSReplyTo(), response) }
> 1. In this case who is the session and how can I obtain it?
> 2. Who is the producer and how can I obtain it?
>
> On the client should I use the code:
>
>
> // client side Destination tempDest = session.createTemporaryQueue();
> MessageConsumer responseConsumer = session.createConsumer(tempDest); ... //
> send a request.. message.setJMSReplyTo(tempDest)
> message.setJMSCorrelationID(myCorrelationID); producer.send(message);
> responseConsumer.receive(1000);
>
> in order to receive the message?
>
> Thank you,
> Florin
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> ---------------------------------
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> voicemail
>
--
James
-------
http://radio.weblogs.com/0112098/
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