Hi
Have a look at the SchedulerMBean in org.jboss.util
package. Please note that you don't have to register
a timer everytime but you can register a listener for
a serie of events (every 10 seconds 100 times etc.)
Andy
> -----Original Message-----
> From: David L. Martin [mailto:[EMAIL PROTECTED]]
> Sent: Friday, July 27, 2001 2:48 PM
> To: [EMAIL PROTECTED]
> Subject: [JBoss-dev] timer mbean - pls help
>
>
> I've been doing some research on how to get my Timer Mbean
> set up. I think
> I'm almost there, I've got the code written and the Timer
> Mbean running, but
> I don't know how to make sure that my class is registered
> with the service
> to make sure that it gets the notifications.
>
> anybody know how to register this code with the mbean? also,
> I copied this
> code from
> http://www.mail-archive.com/[email protected]/m
> sg06591.html,
> and I got rid of the interface the outer class was
> implementing if that
> helps....
>
> TIA,
>
> Dave
>
> here's the code that i'm using:
>
> /*
> * TimerListener.java
> *
> * Created on July 27, 2001, 11:06 AM
> */
>
> package com.incentivation.eval.util;
>
>
> import java.util.*;
> import javax.naming.*;
> import javax.jms.*;
> import javax.management.*;
> import javax.management.timer.*;
>
> public class TimerListener extends org.jboss.util.ServiceMBeanSupport
> {
> protected javax.management.MBeanServer mbeanServer = null;
> protected javax.management.ObjectInstance timerRef = null;
> protected long timeInterval = 10 *
> javax.management.timer.Timer.ONE_SECOND;
>
> public class Listener implements NotificationListener
> {
> public void handleNotification(Notification pNotification,
> Object pHandback)
> {
> try
> {
> TimerListener.this.setTimer();
> System.out.println("You got a notification.");
> }
> catch (Exception e)
> {
>
> }
> }
> }
>
> public String getName()
> {
> return "YourNameHere";
> }
>
> public long getTimeInterval()
> {
> return timeInterval;
> }
>
> public javax.management.ObjectName
> preRegister(javax.management.MBeanServer
> param1, javax.management.ObjectName param2) throws java.lang.Exception
> {
> mbeanServer = param1;
> return super.preRegister( param1, param2 );
> }
>
> public void setTimeInterval(long newTimeInterval)
> {
> timeInterval = newTimeInterval *
> javax.management.timer.Timer.ONE_SECOND;
> }
>
> public void setTimer() throws java.lang.Exception
> {
> try
> {
> Date timerDate = new Date( new Date().getTime() + getTimeInterval() );
> Integer theTimer = (Integer) mbeanServer.invoke(
> timerRef.getObjectName(),
> "addNotification",
> new Object []
> {
> "Your name here", "One Time Timer", null, timerDate
> },
> new String []
> {
> "".getClass().getName(), "".getClass().getName(),
> "java.lang.Object", timerDate.getClass().getName()
> }
> );
> }
> catch (Exception e)
> {
> log.log( "YourMBean.setTimer() exception: " + e.getMessage() );
> throw e;
> }
> }
>
> public void setupTimer() throws Exception
> {
> try
> {
> Set beanList = mbeanServer.queryMBeans(
> new ObjectName("DefaultDomain", "service", "timer"),null);
> if (!beanList.isEmpty())
> {
> timerRef = (ObjectInstance) beanList.iterator().next();
> }
> mbeanServer.addNotificationListener( timerRef.getObjectName(), new
> Listener(), null, null );
> }
> catch (Exception e)
> {
> log.log("Exception in YourMBean.setupTimer(): " + e.toString());
> throw e;
> }
> setTimer();
> }
>
> public void start() throws java.lang.Exception
> {
> super.start();
> /*
> Some Stuff here
> */
> setupTimer();
> }
> }
>
>
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