[rules-users] Fusion [Error]- java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle
Edson Tirelli
ed.tirelli at gmail.com
Mon Nov 9 20:11:05 EST 2009
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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> 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
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