[rules-users] Fusion [Error]- java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle
Chetan Mahadev
mahadev.chetan at gmail.com
Mon Nov 9 21:28:38 EST 2009
We have few .drl files where we are inserting EligibleAlert into working
memory. Should we declare with @role(event) in all the files or only once
anywhere??
Currently I have declared it as an @role(event) in the current drools file
where I am applying
temporal reasoning. Is tht only sufficient.. ? or in all.drl files?
Or in the .drl file, where for the first time it is being inserted into WM??
I am clueless..
2009/11/10 Edson Tirelli <ed.tirelli at gmail.com>
>
> Assuming this is the offending rule, for some reason, Drools is not
> interpreting EligibleAlert as an "event". You need to double check your code
> to make sure it is declared with @role( event ) as previously mentioned by
> Mauricio.
>
>
> []s
> Edson
>
> 2009/11/9 Chetan Mahadev <mahadev.chetan at gmail.com>
>
>> Etirelli,
>>
>> So u mean to say, some other rule is causing the problem?
>>
>> I have this rule which uses events from entry-point after it is being
>> inserted in my earlier rule..
>>
>> rule "testRule"
>> no-loop true
>> when
>>
>> $eventSignature : EventSignature($list : syslogmnemonicList,
>> totalevents == "2")
>> $e1:EligibleAlert($a1 : alert,
>> eval(ifMatches($list,$a1))
>> ) from entry-point "EVENT SIGNATURE STREAM"
>>
>> $e2:EligibleAlert($a2 : alert,
>> // $a2.processed!="TRUE",
>> // $a1.customerId==$a2.customerId,
>> //($a1.alternateAlertText!= $a2.alternateAlertText) ,
>> eval(ifMatches($list,$a1)),
>> eval(ifMatches($list,$a2)),
>> this after[0, 20s] $e1
>> ) from entry-point "EVENT SIGNATURE STREAM"
>>
>>
>>
>> not(EligibleAlert(
>> this after $e1,
>> this before $e2
>> ) from entry-point "EVENT SIGNATURE STREAM")
>>
>> then
>> log.debug("[EventSignature]*******RULE: TEST" );
>>
>> log.debug("[EventSignature]------------------------------------------------------------------------------------"
>> );
>> log.debug("[EventSignature] STATUS : "+$list);
>> log.debug("[EventSignature] ALERT :
>> "+$e1.getAlert().getAlternateAlertText());
>> log.debug("[EventSignature] COMMONINFO : "
>> +$e1.getAlert().getCommonInfo());
>>
>>
>> log.debug("[EventSignature] ALERT :
>> "+$e2.getAlert().getAlternateAlertText());
>> log.debug("[EventSignature] COMMONINFO : "
>> +$e2.getAlert().getCommonInfo());
>> log.debug("[EventSignature] SIGNATURE :
>> "+$eventSignature.getEventsignature());
>>
>> log.debug("[EventSignature]------------------------------------------------------------------------------------"
>> );
>>
>>
>> end
>>
>> Where do you see the problem?? Pls help...
>>
>> 2009/11/9 Edson Tirelli <ed.tirelli at gmail.com>
>>
>>
>>> The stack trace shows the problem is happening in a use of the "after"
>>> evaluator:
>>>
>>>
>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>> org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:321)
>>>
>>> So, the attached rule is not the source of the problem, although it
>>> might be the rule "triggering" the problem because of the event forwarding
>>> in the consequence. Remember that the After operator is supposed to work on
>>> events, java.util.Date, and long (for timestamps). Anything else will raise
>>> errors.
>>>
>>> Finally, on a different subject, you can simplify your consequence,
>>> as this:
>>>
>>>
>>> WorkingMemoryEntryPoint eventsignaturestream =
>>> drools.getEntryPoint("EVENT SIGNATURE STREAM") ;
>>> eventsignaturestream.insert($p);
>>>
>>> Is the same as:
>>>
>>> entryPoints["EVENT SIGNATURE STREAM"].insert( $p );
>>>
>>> []s
>>> Edson
>>>
>>> 2009/11/9 Chetan Mahadev <mahadev.chetan at gmail.com>
>>>
>>>>
>>>> Hi I am getting the following error while inserting into the entrypoint.
>>>>
>>>> rule "Check if EligibleAlert is an Signature Event"
>>>> agenda-group "enrichment"
>>>> auto-focus true
>>>>
>>>> no-loop true
>>>> when
>>>> $list : EventSignatureList();
>>>> $p : EligibleAlert($a : alert,
>>>> $a.eventSignatureProcessingStatus!="TRUE" );
>>>> eval((ifMatchesSyslog($list.getAllSyslogMnemonics(), $a)!=null) )
>>>>
>>>> then
>>>> try{
>>>> WorkingMemoryEntryPoint eventsignaturestream =
>>>> drools.getEntryPoint("EVENT SIGNATURE STREAM") ;
>>>> eventsignaturestream.insert($p);
>>>> } catch(Exception e)
>>>> {
>>>> log.error("[EventSignatureRules] - exception in Check if
>>>> EligibleAlert is an Signature Event alert[ids=" + $p.getAlert().getId() +
>>>> "][error:" + e.toString() + "]");
>>>> }
>>>> end
>>>>
>>>> And I am creating the session this way:
>>>> *
>>>> knowledgeBaseConfig =
>>>> KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
>>>> knowledgeBaseConfig.setOption( EventProcessingOption.STREAM );
>>>> kBase = KnowledgeBaseFactory.newKnowledgeBase(
>>>> knowledgeBaseConfig );
>>>>
>>>>
>>>>
>>>> kBase.addKnowledgePackages(knowledgeBuilder.getKnowledgePackages());
>>>>
>>>>
>>>> KnowledgeSessionConfiguration knowledgeSessionConfig =
>>>> KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
>>>> ((SessionConfiguration) knowledgeSessionConfig).setClockType(
>>>> ClockType.REALTIME_CLOCK );
>>>>
>>>> kBase.newStatefulKnowledgeSession(knowledgeSessionConfig,null);*
>>>>
>>>>
>>>> I get the Following error when my rule fires:
>>>>
>>>> 2009-11-09 15:02:00,675 FATAL pool-2-thread-1 LogStream -
>>>> java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be
>>>> cast to org.drools.common.EventFactHandle
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:321)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:116)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:112)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.common.DefaultBetaConstraints.isAllowedCachedRight(DefaultBetaConstraints.java:200)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.reteoo.JoinNode.assertObject(JoinNode.java:172)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:42)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.reteoo.PropagationQueuingNode$AssertAction.execute(PropagationQueuingNode.java:326)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.reteoo.PropagationQueuingNode.propagateActions(PropagationQueuingNode.java:221)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.reteoo.PropagationQueuingNode$PropagateAction.execute(PropagationQueuingNode.java:394)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1486)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:158)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:122)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:80)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:28)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> pnoc.alertProcessor.Rule_Check_if_EligibleAlert_is_an_Signature_Event_0.consequence(Rule_Check_if_EligibleAlert_is_an_Signature_Event_0.java:16)
>>>> 2009-11-09 15:02:00,676 FATAL pool-2-thread-1 LogStream - at
>>>> pnoc.alertProcessor.Rule_Check_if_EligibleAlert_is_an_Signature_Event_0ConsequenceInvoker.evaluate(Rule_Check_if_EligibleAlert_is_an_Signature_Event_0ConsequenceInvoker.java:24)
>>>>
>>>> Pls help!
>>>>
>>>>
>>>> Regds
>>>> Chetan
>>>>
>>>> _______________________________________________
>>>> rules-users mailing list
>>>> rules-users at lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>
>>>>
>>>
>>>
>>> --
>>> Edson Tirelli
>>> JBoss Drools Core Development
>>> JBoss by Red Hat @ www.jboss.com
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>
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>>
>
>
> --
> Edson Tirelli
> JBoss Drools Core Development
> JBoss by Red Hat @ www.jboss.com
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
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