On 25/04/2012, thomashatz@yahoo.com <thomashatz@yahoo.com> wrote:I'm not aware of any such information being collected and stored
> Thanks Wolfgang,
>
> But don't the rules tables have basic info like 'last run date and time and
> user' type info...
automatically. But if this is a Guvnor function, I may have a very
blind spot there.
It's done as with any other listener in JDK etc. Here are some code
>
> Also how to setup an AgendaEventListener
snippets to get you started. This code is not necessarily "best
practice" or anything; it's meant to illustrate the essentials. The
constructor installs the listener.
public class AgendaWatcher implements AgendaEventListener {
// useful aux. method
private String ruleNameOfEvent( ActivationEvent actEvent ){
Activation activation = actEvent.getActivation();
Rule rule = activation.getRule();
return rule.getPackageName() + '.' + rule.getName();
}
public AgendaWatcher( KnowledgeRuntime knowledgeRuntime ){
knowledgeRuntime.addEventListener( (AgendaEventListener)this );
}
@Override
public void activationCancelled(ActivationCancelledEvent actEvent) {
// happens frequently, for various reasons. may not be of interest.
}
@Override
public void activationCreated(ActivationCreatedEvent actEvent) {
// same thing.
}
@Override
public void beforeActivationFired(BeforeActivationFiredEvent arg0) {
}
@Override
public void afterActivationFired(AfterActivationFiredEvent actEvent) {
// count firings
Counts counts = getCountsForName( ruleNameOfEvent( actEvent ) );
counts.firings++;
}
@Override
public void agendaGroupPopped(AgendaGroupPoppedEvent arg0) {
}
@Override
public void agendaGroupPushed(AgendaGroupPushedEvent arg0) {
}
}
>
> Really appreciate your knowledge sharing
>
> --- On Tue, 4/24/12, Wolfgang Laun <wolfgang.laun@gmail.com> wrote:
>
>> From: Wolfgang Laun <wolfgang.laun@gmail.com>
>> Subject: Re: [rules-users] How to query rules to create reports to analyze
>> usage
>> To: "Rules Users List" <rules-users@lists.jboss.org>
>> Date: Tuesday, April 24, 2012, 4:30 AM
>> For analyzing "rules usage" an
>> AgendaEventListener should be used to
>> register the information you are interested in. (You
>> wouldn't need to
>> query the rules DB for this anyway.)
>>
>> -W
>>
>> On 24/04/2012, thatz <thomashatz@yahoo.com>
>> wrote:
>> > Am new user to Drools, have 300+ rules, but need to
>> query them using SQL
>> > syntax to create reports and analyze rules usage (if
>> rules are being called,
>> > etc.). App developer said cannot query the rules
>> db directly because it is
>> > proprietary. Is there anyway to query rules or
>> what is best way to analyze
>> > rules usage. Thanks
>> >
>> > --
>> > View this message in context:
>> > http://drools.46999.n3.nabble.com/How-to-query-rules-to-create-reports-to-analyze-usage-tp3934833p3934833.html
>> > Sent from the Drools: User forum mailing list archive
>> at Nabble.com.
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users@lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
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>
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