Well, I'm still attempting to recieve notifications on EJB Deployment.
After looking into this for a long time, I felt the best way was to use
the MEJB event notification as specified in the JSR-77.
Here's the story.
- I wrote the NotificationListner, which implements
javax.management.NotificationListner.
- I wrote the NotificationFilter, which implements
javax.management.NotificationFilter (currently this just returns true,
which is equivalent to passing a null filter)
- I wrote an agent who is responsible for creating the MEJB interface
and registering the listener. Currently this is invoked manually
(eventually I would like this to be a managed utility that gets invoked
as system startup, but that is not important at this time). I register
the listener to listen to notification events being broadcasted from the
service=MainDeployer.
-------
Up to this point everything works as expected.
-------
So what happens when a Deployment notification occurs. I manually
remove/add an EAR to the deployment directory and get the following
error: server.log ......
2002-07-24 15:35:24,324 INFO [org.jboss.deployment.MainDeployer]
Undeployed file:/C:/java/jboss-3.0.0/server/all/deploy/MII.ear
2002-07-24 15:35:24,324 INFO [STDOUT]
RMINotificationListener.handleNotification() , notification:
javax.management.Notification[source=jboss.system:service=MainDeployer],
handback: null, client listener:
org.jboss.management.mejb.RMIClientNotificationListener_Stub[RemoteStub
[ref: [endpoint:[129.83.68.35:2911](local),objID:[7]]]]
2002-07-24 15:35:24,334 ERROR
[org.jboss.deployment.scanner.URLDeploymentScanner] Failed to undeploy:
org.jboss.deployment.scanner.URLDeploymentScanner$DeployedURL@c092ba50{
url=file:/C:/java/jboss-3.0.0/server/all/deploy/MII.ear,
deployedLastModified=1027537520945 }
java.lang.RuntimeException: Error unmarshaling return header; nested
exception is:
java.net.SocketException: Connection aborted by peer: JVM_recv in socket
input stream read
at
org.jboss.management.mejb.RMINotificationListener.handleNotification(RMINotificationListener.java:76)
at
org.jboss.mx.server.NotificationListenerProxy.handleNotification(NotificationListenerProxy.java:71)
at
javax.management.NotificationBroadcasterSupport.sendNotification(NotificationBroadcasterSupport.java:84)
at org.jboss.deployment.MainDeployer.undeploy(MainDeployer.java:354)
at org.jboss.deployment.MainDeployer.undeploy(MainDeployer.java:317)
at java.lang.reflect.Method.invoke(Native Method)
at
org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:491)
at org.jboss.util.jmx.MBeanProxy.invoke(MBeanProxy.java:174)
at $Proxy4.undeploy(Unknown Source)
at
org.jboss.deployment.scanner.URLDeploymentScanner.undeploy(URLDeploymentScanner.java:427)
at
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:508)
at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:202)
at
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:191)
------------------------------------
The above error message occurs during an undeployment. During
deployment error is very similar. I've been scratching my head at this
for a while. If anyone has any advice I would greatly appreciate it.
I'm sure I'm missing something but I can't think of it.
Question: Should the NotificationListner and NoficationFilter be remote
interfaces?
--
<Mike/>
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