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

Mauricio Salatino salaboy at gmail.com
Mon Nov 9 07:04:26 EST 2009


Probably the problem is that you are not using the: from entre-point "EVENT
SIGNATURE STREAM"
In the $p : EligibleAlert($a : alert,
$a.eventSignatureProcessingStatus!="TRUE" ) from entre-point "EVENT
SIGNATURE STREAM"

2009/11/9 Chetan Mahadev <mahadev.chetan at gmail.com>

> Hi Mauricio,,
>
> I have already declared it as an event....  as shown below... yet it
> cribs....
>
>
> declare EligibleAlert
>     @role( event )
> //    @expires(90s)
> end
>
>
>
>
> rule "Check if EligibleAlert is an Signature Event"
> agenda-group "enrichment"
> auto-focus true
> //salience 100
>
> 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
>
> 2009/11/9 Mauricio Salatino <salaboy at gmail.com>
>
> 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
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>
>>
>> --
>> - http://salaboy.wordpress.com
>> - http://www.jbug.com.ar
>> - Salatino "Salaboy" Mauricio -
>>
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>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
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-- 
- http://salaboy.wordpress.com
- http://www.jbug.com.ar
- Salatino "Salaboy" Mauricio -
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