[jboss-user] [Beginners Corner] - Looking up MessageDrivenBean/MessageListener
Hi,
Firstly, i am using JBoss 3.2.7 (this cant be changed).
I have the following scenario and im stuck for ideas on what is going on and why its
failing to lookup as you will see.
I have a queue called: BatchProcessorQueue
(The queue works fine with the unit tests i have in place)
I have an MDB with the following description:
package mdb;
|
| //imports
|
| /**
| * @ejb.bean
| * name="ejb/BatchProcessorBean"
| * display-name="BatchProcessorBean"
| * acknowledge-mode="Auto-acknowledge"
| * destination-type="javax.jms.Queue"
| * subscription-durability="Durable"
| *
| * @jboss.destination-jndi-name
| * name="queue/BatchProcessorQueue"
| */
| public class BatchProcessorBean implements MessageDrivenBean, MessageListener
| {
| // non relevant code
| }
When this MDB is loaded into JBoss, the entry i see in the JMX console is:
jboss.j2ee
|
binding=message-driven-bean,jndiName=local/ejb/BatchProcessorBean@24345503,plugin=invoker,service=EJB
In another bean i have the following code where i actually try to locate the MDB but it
isnt able to locate the MDB and every combination ive tried for the object name isnt
working.
JMSContainerInvokerMBean invoker = null;
|
| try
| {
| ObjectName configObjName = new ObjectName(
| "jboss.j2ee:name=local/ejb/BatchProcessorBean"
| );
|
| invoker = (JMSContainerInvokerMBean) MBeanProxy.get(
| JMSContainerInvokerMBean.class,
| configObjName,
| MBeanHelper.getMBeanServer() );
| }
| catch ( Exception e )
| {
| log.warn( "failed to obtain a valid service configuration MBean, using default,
" + e.getMessage() );
| e.printStackTrace();
| }
|
| if(invoker != null)
| {
| try
| {
| log.info("Stopping the MBean");
| invoker.stop();
| log.info("Setting MBean to size of " + size);
| invoker.setMaxPoolSize(size);
| log.info("Starting the MBean");
| invoker.start();
| return true;
| }
| catch (Exception e)
| {
| log.warn("Failed to restart the BatchProcessorBean MBean");
| e.printStackTrace();
| }
| }
Having tried countless combinations for the lookup but the error i get is this:
01:44:09,111 WARN [AdapterBean] failed to obtain a valid service configuration MBean,
using default, Object name
jboss.j2ee:binding=message-driven-bean,jndiName=local/ejb/BatchProcessorBean@24345503,plugin=invoker,service=EJB
not found: javax.management.InstanceNotFoundException: jbos
|
s.j2ee:binding=message-driven-bean,jndiName=local/ejb/BatchProcessorBean@24345503,plugin=invoker,service=EJB
is not registered.
| 01:44:09,111 INFO [STDOUT] org.jboss.mx.util.MBeanProxyCreationException: Object name
jboss.j2ee:binding=message-driven-bean,jndiName=local/ejb/BatchProcessorBean@24345503,plugin=invoker,service=EJB
not found: javax.management.InstanceNotFoundException:
jboss.j2ee:binding=message-driven-bean,j
| ndiName=local/ejb/BatchProcessorBean@24345503,plugin=invoker,service=EJB is not
registered.
| 01:44:09,142 INFO [STDOUT] at
org.jboss.mx.util.JMXInvocationHandler.<init>(JMXInvocationHandler.java:150)
| 01:44:09,142 INFO [STDOUT] at
org.jboss.mx.util.MBeanProxy.get(MBeanProxy.java:76)
| 01:44:09,142 INFO [STDOUT] at
org.jboss.mx.util.MBeanProxy.get(MBeanProxy.java:64)
| .
| .
| .
| .
|
Am i missing something somewhere in regards to configuration of the MDB? Does anyone have
a similar sort of example i can refer to ? As u will have noticed im trying to restart the
target mean that im trying to lookup.
Am i trying to do the impossible here ? Ive tried to follow this:
http://wiki.jboss.org/wiki/Wiki.jsp?page=HowCanAnEJBCallAnMBean
But i dont think it works so well in this situation, or am i missing something from this
guide in my implementation ?
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