[rules-users] Fusion [Error]- java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle

[Mauricio Salatino]

Hi,
Did you do something like:
declare EligibleAlert
 @role(event)
end

in your DRL?
you need to declare which facts are events.

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
>
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>


-- 
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- Salatino "Salaboy" Mauricio -
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