[jboss-user] [JBoss Messaging] - Monitoring the depth of a Queue/Topic

[mbabauer]

As part of a self-impossed excersise to better understand JMS, Spring, JBoss, and how it all fits together, I am writing a little web service that generated hashes off all possible permutations of a string.  The way I have things organized currently are as follows:
  1) DAO/VO layer done as a Library that encapulates the generated hashes
  2) Utility layer, deployed as part of the WAR (to be mentioned next) that has a Queue consumer and a Queue producer.  The producer is an MBean with a thread that generated possible text permutations, then deposits them into the Queue as a TextMessage.  The consumer gets these TextMessages and uses the text to generate the Hashes, create the VOs, and store them into the DB using the DAOs
  3) A WAR thats actually empty, but will eventually be my first Attempt at a real GWT application.  Currently its only used to bootstrap Spring and the JBossMQ queue

As I said, all of this is wired via Spring, and for the JMS Producer I am using the JmsTemplate to send messages.

My delima now is this.  I would like to have the message producer monitor the queue depth in a thread and add messages as it falls below some threashold, sort of like a throttle.  Unfortunately, I can't for the life of me figure out how to do this.  From the Spring-side, I have access to the JmsTemplate, which means I can get a JMS Connection object or the JMS Destination object.  Neither of which seems to have any methods that indicate Queue depth.

Does anyone out there know where I can start looking?  Is there not a generic JMS way to do this?  Should I instead start looking to a more JBoss-specific method?

I was attempting to make this App Server agnostic, but its not really a requirement since I am using JBoss anyway.

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4019564#4019564

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4019564