Hi all!
I'm trying to receive notifications from a simple MBean component. The MBean
(taken from wikis) simply dumps a Message when the operation printMessage is
invoked:
public class StartupService extends ServiceMBeanSupport implements
StartupServiceMBean
| {
| // Our message attribute
| private String message = "Sorry no message today";
|
| // Getters and Setters
| public String getMessage()
| {
| return message;
| }
| public void setMessage(String message)
| {
| this.message = message;
| }
|
| // The printMessage operation
| public void printMessage()
| {
| log.info(message);
| }
|
| // The lifecycle
| protected void startService() throws Exception
| {
| log.info("Starting with message=" + message);
| }
| protected void stopService() throws Exception
| {
| log.info("Stopping with message=" + message);
| }
| }
|
The notification Listener (also taken from wikis) extends
ListenerServiceMBeanSupport
public class NotificationListener
| extends ListenerServiceMBeanSupport
| implements NotificationListenerMBean
| {
| // Constructors --------------------------------------------------
| /**
| * CTOR
| **/
| public NotificationListener()
| {
| // empty
| }
|
| // NotificationListenerMBean implementation ----------------------
| // No attributes or operations in this example to implement!
|
| // Lifecycle control (ServiceMBeanSupport) -----------------------
| /**
| * Start
| **/
| public void startService()
| throws Exception
| {
| // subscribe for notification, true=dynamic
| super.subscribe(true); // listener is me!
| }
|
| /**
| * Stop
| **/
| public void stopService()
| throws Exception
| {
| // unsubscribe for notifications
| super.unsubscribe();
| }
|
| // ListenerServiceMBeanSupport override ------------------------
| /**
| * Overriden to add handling!
| **/
| public void handleNotification2(Notification notification, Object
handback)
| {
| log.info("Got notification: " + notification + ", handback: " +
handback);
| }
|
|
| }
Then I've tried to adapt the service xml file so that it receives notifications
from the domain com.sample.jmx:
<mbean code="com.sample.jmx.StartupService"
name="com.packtpub.jmx:service=StartupClass">
| <attribute name="Message">Hello World</attribute>
| </mbean>
|
| <server>
| <mbean code="jboss.example.NotificationListener"
| name="jboss.example:name=NotificationListener">
|
| <attribute name="SubscriptionList">
| <subscription-list>
| <mbean name="*:service=invoker,*" handback="anObject"></mbean>
| <mbean name="com.sample.jmx:*"></mbean>
|
| <notification type="JBOSS_MONITOR_NOTIFICATION"></notification>
| <mbean name="JMImplementation:type=MBeanServerDelegate">
| <notification type="JMX.mbean.registered"></notification>
| </mbean>
| </subscription-list>
| </attribute>
| </mbean>
| </server>
Unfortunately I don't receive any notification when the method printMessage is
invoked....have you got any idea what's wrong?
JBoss release used 5.0.0 GA with JDK 1.6
Thanks a lot
John
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