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From Tim Bain <tb...@alumni.duke.edu>
Subject Re: JAVA ActiveMQ JMX browse messages on Topic
Date Sat, 19 Aug 2017 04:23:17 GMT
By the way, there's an ongoing thread (
http://activemq.2283324.n4.nabble.com/Delete-Purge-Topic-tp4728932.html)
about whether it's possible to use the JMX delete action on the topic to
effectively purge the existing messages from the topic. I'd be curious
whether you hit the same issues that that thread's OP does when trying that
approach.

Tim

On Aug 18, 2017 8:01 PM, "Tim Bain" <tbain@alumni.duke.edu> wrote:

> You can browse queues, but not topics.
>
> Tim
>
> On Aug 18, 2017 12:15 PM, "Hitesh" <hitesh.hotchandani@contentsphere.com>
> wrote:
>
>> Hi all,
>>
>> The following question is for ActiveMQ 5.13.
>>
>> I have 2 durable subscribers listening to a topic, lets say ExampleTopic.
>> I need to delete all the messages on that topic when a particular event
>> occurs. I tried to find the jolokia apis to do the same but couldn't find
>> any.
>> So I've decided to use JMX Mbeans to browse the messages and delete them
>> one
>> by one.
>>
>> A simple java program which will connect to JMXService and fetch the
>> information for all the messages.
>>
>> JMXServiceURL url = new
>> JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi");
>> JMXConnector jmxc = JMXConnectorFactory.connect(url);
>> MBeanServerConnection conn = jmxc.getMBeanServerConnection();
>> ObjectName mbeanName = new
>> ObjectName("org.apache.activemq:type=Broker,brokerName=localhost");
>> TopicViewMBean bean = MBeanServerInvocationHandler.newProxyInstance(conn,
>> mbeanName, TopicViewMBean.class, true);
>> List list = bean.browseMessages();
>>
>> However this throws the following exception:
>>
>> java.lang.reflect.UndeclaredThrowableException
>>         at com.sun.proxy.$Proxy0.browseMessages(Unknown Source)
>>         at com.exportstaging.main.Test.main(Test.java:25)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>         at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce
>> ssorImpl.java:62)
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe
>> thodAccessorImpl.java:43)
>>         at java.lang.reflect.Method.invoke(Method.java:498)
>>         at com.intellij.rt.execution.application.AppMain.main(AppMain.
>> java:147)
>> Caused by: javax.management.ReflectionException: No such operation:
>> browseMessages
>>
>>
>> I tried to find the web for this, but couldn't find any solution.
>>
>> Can someone help me fix this.
>>
>> Thanks in advance
>>
>>
>>
>>
>> --
>> View this message in context: http://activemq.2283324.n4.nab
>> ble.com/JAVA-ActiveMQ-JMX-browse-messages-on-Topic-tp4729813.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>

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