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

[Chetan Mahadev]

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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