I was able to access the getTopics method of BrokerViewMBean by using the "invoke" method on a MBeanServerObject. However, the problem now is that the getTopics() method returns an ObjectName[] however the "invoke" method I used does not expect an ObjectName[]. If I try simple casting the error goes away, but the information is not useful anymore. Is there a workaround for this? Thanks for all the help!
Adrian Co wrote: > > You have to use JMX to access it and enable JMX in activemq. > > http://java.sun.com/j2se/1.5.0/docs/guide/jmx/tutorial/tutorialTOC.html > > new2activemq wrote: >> Thanks! That really helps me in putting the effort in the right >> direction. I >> think in my environment we fall under the second cateogory mentioned >> below - >> we are accessing remote broker. Also, in my JMX console window... under >> "org.apache.activemq" --> "localhost" --> "Broker" --> "Info" I can see >> the >> MBean Java Class = org.apache.activemq.broker.jmx.BrokerView. The >> BrokerView >> implements BrokerViewMBean. The problem that I am having now is that I >> don't >> know how access the BrokerView object? Am I missing something obviously >> simple here? Any guidance on this will be very helpful. Thanks! >> >> >> Adrian Co wrote: >> >>> IMO, using BrokerService.getDestinations() will only work when you are >>> using embedded brokers. I.e. you are deploying the JMS broker inside >>> your app and you have access to the BrokerService object. >>> >>> If you want to access a remote broker (i.e. if you run it via >>> ./activemq), you need to use JMX and call the getTopics, getQueues, etc >>> of the BrokerViewMBean. >>> >>> Hope that helps. >>> >>> >>> new2activemq wrote: >>> >>>> James, >>>> >>>> thanks a lot for your help below. i was actually able to try the list() >>>> method and it lists everything that's in my jndi.properties file. i >>>> think >>>> the reason is that my InitalContext in the first place does a 'lookup' >>>> in >>>> the jndi.properties file. >>>> >>>> however, lets say my activemq broker is running and thru the jmx >>>> console >>>> i >>>> add a new topic on the fly - this new topic name will NOT be in my >>>> jndi.properties. however, yes - it does now exist on the broker. so to >>>> work >>>> in this scenario, i'm trying to get a list of destinations that are >>>> active >>>> directly from the broker. >>>> >>>> in interface Broker there is a method called getDestinations() - some >>>> of >>>> the >>>> classes that implement this interface, for example BrokerBroadcaster, >>>> RegionBroker, etc. "may help" me in doing what i want to do... but i'm >>>> not >>>> sure exactly how to use them... any ideas? class BrokerService also has >>>> a >>>> getDestinations() method. >>>> >>>> the problem i'm having is that when invoke the getBrokerName() method >>>> of >>>> class BrokerService, it returns a "null". because its a null i am not >>>> sure >>>> how to proceed further. >>>> >>>> on the other hand, when i invoke the getBrokerURL() method of class >>>> ActiveMQConnectionFactory - it does return the expected result: >>>> "tcp://localhost:61616 >>>> >>>> any further guidance from you on how i may accomplish my task with the >>>> above >>>> information (or any other which i may be missing) will be highly >>>> appreciated. >>>> >>>> Thanks! >>>> >>>> >>>> James.Strachan wrote: >>>> >>>> >>>>> try the JNDI javadoc >>>>> http://java.sun.com/j2se/1.5.0/docs/api/javax/naming/InitialContext.html#list(java.lang.String) >>>>> >>>>> or a Sun tutorial on JNDI >>>>> >>>>> >>>>> On 3/22/07, new2activemq <[EMAIL PROTECTED]> wrote: >>>>> >>>>> >>>>>> Hi, >>>>>> >>>>>> I am trying to write a debug tool where as a user, I do not know the >>>>>> topicNames that exist. Normally, if I knew the topic name, I could >>>>>> just >>>>>> do >>>>>> this: >>>>>> >>>>>> myContext.lookup(jndiName) >>>>>> >>>>>> where jndiName is the topicName >>>>>> >>>>>> Is there a way I can pass in an argument, or a wildcard argument that >>>>>> will >>>>>> look up all the topicNames that exist? Or is it possible that there >>>>>> is >>>>>> an >>>>>> all different way to do this? >>>>>> >>>>>> Any help will be greatly appreciated. >>>>>> >>>>>> Thanks! >>>>>> -- >>>>>> View this message in context: >>>>>> http://www.nabble.com/how-to-lookup-a-topicName-dynamically-tf3449350s2354.html#a9620849 >>>>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com. >>>>>> >>>>>> >>>>>> >>>>>> >>>>> -- >>>>> >>>>> James >>>>> ------- >>>>> http://radio.weblogs.com/0112098/ >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>> >>> >> >> > > > -- View this message in context: http://www.nabble.com/how-to-lookup-a-topicName-dynamically-tf3449350s2354.html#a9744216 Sent from the ActiveMQ - User mailing list archive at Nabble.com.
