[rules-users] Drools Expert: monitor rules & report activity

[David Sinclair]

Have a look at the AgendaEventListener. You can use these callbacks to see
which rules fire and information about them

 void *activationCancelled<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#activationCancelled%28org.drools.event.rule.ActivationCancelledEvent%29>
*(ActivationCancelledEvent<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/ActivationCancelledEvent.html>
 event)
              void
*activationCreated<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#activationCreated%28org.drools.event.rule.ActivationCreatedEvent%29>
*(ActivationCreatedEvent<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/ActivationCreatedEvent.html>
 event)
              void
*afterActivationFired<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#afterActivationFired%28org.drools.event.rule.AfterActivationFiredEvent%29>
*(AfterActivationFiredEvent<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AfterActivationFiredEvent.html>
 event)
              void
*agendaGroupPopped<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#agendaGroupPopped%28org.drools.event.rule.AgendaGroupPoppedEvent%29>
*(AgendaGroupPoppedEvent<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaGroupPoppedEvent.html>
 event)
              void
*agendaGroupPushed<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#agendaGroupPushed%28org.drools.event.rule.AgendaGroupPushedEvent%29>
*(AgendaGroupPushedEvent<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaGroupPushedEvent.html>
 event)
              void
*beforeActivationFired<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/AgendaEventListener.html#beforeActivationFired%28org.drools.event.rule.BeforeActivationFiredEvent%29>
*(BeforeActivationFiredEvent<http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/javadocs/stable/drools-api/org/drools/event/rule/BeforeActivationFiredEvent.html>
 event)

2010/8/3 Dieter D'haeyere <dieter.dhaeyere at gmail.com>

> @ll,
> I have a question regarding the possibilities to monitor and report on the
> rules activity.
> I have seen that with Drools Guvnor, it is perfectly possible to monitor
> scenario's, see what rules fired, etc.
>
> Now, going further, I have two questions:
> - Is it possible to monitor rule activity (which rules got fired etc) in a
> production situation.  Eg. Is it possible to start recording activity at
> some time until a proble occured and to review the logs afterwards.  This
> would be of use when scenario's are not covering all possible cases.
> - Is it possible to produce reports on rules, usage of rules (eg. what
> rules are fired and what rules were fired most), performance, ...
> And if not, what could be a good starting point to create them ?
>
> My experience with Drools is rather limited.  Let's say that I am
> interested in expert system and technologies surrounding it.  At this moment
> I am getting a 'theoretical' grip on Drools and its possibilities (of
> course, I couldn't help also creating some kind of poc :)  ).
>
> Sincerely,
> Dieter D'haeyere.
>
>
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>
>
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