Miki/Andre
//i wasnt able to determine JMX ability to schedule a specific task for a
specific time?
//could you reply with an example demonstrating that capability?
//in the meanwhile you *could* implement Axis2 SchedulerTimerTask
//granted java.util.Timer is weak on specific time but if you would be willing
to deploy axis2 as a TC webapp you *could* use SchedulerTimerTask
public class org.apache.axis2.deployment.scheduler.SchedulerTimerTask
extends java.util.TimerTask {
private org.apache.axis2.deployment.scheduler.DeploymentIterator
iterator;
private org.apache.axis2.deployment.scheduler.SchedulerTask
schedulerTask;
public
SchedulerTimerTask(org.apache.axis2.deployment.scheduler.SchedulerTask
schedulerTask, org.apache.axis2.deployment.scheduler.DeploymentIterator
iterator) {
this.schedulerTask = schedulerTask;
this.iterator = iterator;
}
public void run() {
schedulerTask.run();
reschedule(schedulerTask, iterator); //this will ultimately call
to reschedule
}
private void reschedule(SchedulerTask schedulerTask, DeploymentIterator
iterator) {
Date time = iterator.next(); //DeploymentIterator next will acquire
the date/time the Task will be scheduled
if (time == null) {
schedulerTask.cancel();
} else {
synchronized (schedulerTask.lock) {
if (schedulerTask.state != SchedulerTask.CANCELLED) {
schedulerTask.timerTask = new
SchedulerTimerTask(schedulerTask, iterator);
timer.schedule(schedulerTask.timerTask, time);
}
}
}
}
//DeploymentIterator handles the schedule date/time
public class org.apache.axis2.deployment.scheduler.DeploymentIterator {
private java.util.Calendar calendar = java.util.Calendar.getInstance();
public java.util.Date next() {
//tweak this for your specific Date/Time
// calendar.add(Calendar.SECOND, 10); //default date/time is current
date/time and add 10 seconds
return calendar.getTime();
}
}
//org.apache.axis2.deployment.scheduler.Scheduler contains test harness to
test DeploymentIterator.next()
public void schedule(SchedulerTask schedulerTask, DeploymentIterator
iterator) {
Date time = iterator.next();
if (time == null) {
schedulerTask.cancel();
} else {
synchronized (schedulerTask.lock) {
schedulerTask.state = SchedulerTask.SCHEDULED;
schedulerTask.timerTask = new SchedulerTimerTask(schedulerTask,
iterator);
timer.schedule(schedulerTask.timerTask, time);
}
}
}
dziekuje
Martin
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> Date: Thu, 22 Jul 2010 11:19:19 +0200
> From: m...@ceti.pl
> To: users@tomcat.apache.org
> Subject: Re: Fire off asynch task in Tomcat.
>
> On 07/22/2010 10:33 AM, André Warnier wrote:
> > Talking further to myself, I'll add that it also makes it easier to
> > suspend/resume the sending of emails separately if you need to for
> > some reason, without having to change anything to your running webapp.
> >
> > I know, it is certainly less exciting than using consumer/producer
> > patterns or Executor classes.. sigh.
>
> No no.
>
> You have opportunity then to use JMX for altering anything inside
> webapplication.
> It becomes more exciting :-)
>
> --
> Mikolaj Rydzewski<m...@ceti.pl>
>
>
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