org.objectweb.fractal.jmx.listener
Class BasicListener

java.lang.Object
  org.objectweb.fractal.jmx.listener.BasicListener

All Implemented Interfaces:

EventListener, NotificationListener

public class BasicListener

extends Object

implements NotificationListener

Provides a simple listener component. An object of this class can be used to receive notifications sent out by standard monitoring services (counter, gauge and string) of the JMX specification. All notifications received will be write to user screen.

Version:

0.1

Constructor Summary

BasicListener()

Method Summary

void	handleNotification(Notification n, Object handback) Invoked when a JMX notification occurs.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BasicListener

public BasicListener()

Method Detail

handleNotification

public void handleNotification(Notification n,
                               Object handback)

Invoked when a JMX notification occurs. Currently handles monitor notifications sent out by standard monitoring services (counter, gauge and string) of the JMX specification. This listener will print to user screen the following information (part of the received notification):

• the Date on which the Event initially occurred (initialized from the notification timestamp),
• the notification type,
• the monitor source on which the Event initially occurred,
• the observed object of this monitor notification,
• the observed attribute of this monitor notification,
• the threshold/string (depending on the monitor type) that triggered off this monitor notification,
• the derived gauge of this monitor notification.

Specified by:

handleNotification in interface NotificationListener

Parameters:

n - The notification (should be an instance of MonitorNotification).

handback - An opaque object, not used by this simple implementation.

Throws:

ClassCastException - if the received notification is not instance of MonitorNotification.