activemq-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Adrian Co <...@exist.com>
Subject Re: how to lookup a topicName dynamically
Date Thu, 29 Mar 2007 17:10:44 GMT
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 <ahuja@avaya.com> 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/
>>>>
>>>>
>>>>     
>>>>         
>>>   
>>>       
>>
>>     
>
>   


Mime
View raw message