How to listen for remote notifications?

[imsolde]

Can anybody tell me how to use the org.jboss.jmx.connector.notification package? I want to a register a listener that gets notified about events on a remote mbean server. I already noticed the existence of RMINotificationListener and RMIClientNotificationListener, but I'm not sure if they solve my problem, respectively how to use them.

Perhaps someone can give me some hints...

[adrian.brock]

http://main.jboss.org/thread.jsp?forum=63&thread=11734

This thread discusses the 2.4.4 example code
available at
http://www.jboss.org/online-manual/HTML/ch13s39.html

It sets up a remote notification listener on all
MBeans within JBoss.

Some of the package and class names have changed
in 3.0

Regards,
Adrian

[imsolde]

Hi Adrian,

thanks for your help. If things haven't changed too much in JBoss 3 the docs you mentioned should give me sufficient support...

Best regards

Carsten

[peterb]

Sorry to bring up this old thread, but I have the same questions and the links don't work anymore. How does one setup a remote notification listener? I can't seem to find any help in the JBoss docs and the information on the wiki is for listener MBeans deployed on the server.

What I tried already (on the client) is to invoke the addNotificationListener method on the RMIAdaptor with a implementation of an RMINotificationtListener, however I keep getting a java.io.NotSerializableException on this:

 public class MyRMIListener implements RMINotificationListener {
 public void handleNotification(javax.management.Notification notification, Object obj)
 throws java.rmi.RemoteException {
 System.out.println("\nReceived notification: " + notification);
 }
 }

So I guess it's a little more complicated than that ...

regards and thanks in advance,
Peter

[genman]

Likely the notification object you are passing isn't serializable. What is the stack trace?

[peterb]

addNotificationListener on an RMIAdaptor throws the following exception when adding the notification listener I put in my previous message:

java.rmi.MarshalException: error marshalling arguments; nested exception is:
 java.io.NotSerializableException: be.ugent.pbackx.client.MyRMIListener
 at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:129)
 at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
 at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:135)
 at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:96)
 at org.jboss.jmx.connector.invoker.client.InvokerAdaptorClientInterceptor.invoke(InvokerAdaptorClientInterceptor.java:58)
 at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:53)
 at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodInterceptor.java:55)
 at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
 at $Proxy1.addNotificationListener(Unknown Source)
 at be.ugent.pbackx.util.EJBUtil.addNotificationListener_aroundBody82(EJBUtil.java:143)
 at be.ugent.pbackx.util.EJBUtil.addNotificationListener_aroundBody84(EJBUtil.java:143)
 at be.ugent.pbackx.util.EJBUtil.addNotificationListener(EJBUtil.java)
 at be.ugent.pbackx.client.SimpleMonitorPanel.<init>(SimpleMonitorPanel.java:36)
 at be.ugent.pbackx.client.GUIManager.initComponents_aroundBody122(GUIManager.java:83)
 at be.ugent.pbackx.client.GUIManager.initComponents(GUIManager.java)
 at be.ugent.pbackx.client.GUIManager.initComponents_aroundBody0(GUIManager.java:26)
 at be.ugent.pbackx.client.GUIManager.<init>(GUIManager.java:26)
 at be.ugent.pbackx.client.GUIManager.main(GUIManager.java:171)
Caused by: java.io.NotSerializableException: be.ugent.pbackx.client.MyRMIListener
 at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054)
 at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1224)
 at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1050)
 at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
 at org.jboss.invocation.MarshalledValue.<init>(MarshalledValue.java:57)
 at org.jboss.invocation.MarshalledInvocation.writeExternal(MarshalledInvocation.java:477)
 at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1264)
 at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1245)
 at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
 at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
 at sun.rmi.server.UnicastRef.marshalValue(UnicastRef.java:265)
 at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:124)
 ... 17 more

Just for the record the complete MyRMIListener code:

package be.ugent.pbackx.client;

import org.jboss.jmx.adaptor.rmi.RMINotificationListener;

public class MyRMIListener implements RMINotificationListener {
 public void handleNotification(javax.management.Notification notification, Object obj) {
 System.out.println("\nReceived notification: " + notification);
 }
}