Communication with MBeans using notifications - JMX in Action - page 126

Listing 6.1 Polling.java

package jmxbook.ch6;

import javax.management.*;

Extend
support class
for sending
notifications

public class Polling extends NotificationBroadcasterSupport
implements PollingMBean, Runnable
{
private boolean stop = true;
private int index = 0;

public Polling()
{
}

public void start()
{
try
{
stop = false;
Thread t = new Thread( this );
t.start();

Create Thread
to run loop

}
catch( Exception e )
{
e.printStackTrace();
}
}

public void stop()
{
stop = true;
}

public void run()
{
while( !stop )
{
try
{
Thread.sleep( 1000 );
System.out.println( "Polling" );
}
catch( Exception e )
{
e.printStackTrace();
}
Notification notif = new Notification(
"ch6.PollingMBean.counter",
this, index++ );
sendNotification( notif );

B

Create and send
notification