[rules-users] NoClassDefFoundError when dynamically updating rulebase for rule using 'accumulate' CE

[Edson Tirelli]

      Are you using drools 4.0.7?

     []s
     Edson

2008/6/10 kunal <kshah at sensorlogic.com>:

>
> I am dynamically adding/modifying rules (packages) to a loaded rule-base
> and
> having issues specifically when my rule contains accumulate CE. For an
> example, following is a rule which I am trying to add to my rulebase (which
> is already loaded in memory).
>
> rule "7d7fa7f1-164b-45a7-8e5a-c0c260815f9a"
>        enabled true
>        salience 0
>        no-loop true
>        agenda-group "DATA_ARRIVAL"
>        when
>                AgentID(agentId : agentId);
>                DeviceData()
>
>
> Property(key=="threshold",classifier=="7d7fa7f1-164b-45a7-8e5a-c0c260815f9a.Condition0",$prop_threshold0
> : value)
>                $total0: Number( doubleValue > $prop_threshold0)   from
> accumulate(
> DataPoint( $value0: value ) from
>
> dataService.getDataPoints("5e0de623-9a25-45a1-8bc5-745254c2576e","SPEED",3),
> average( $value0) )
>        then
>
>  agent.handleAction("rules.sl.7d7fa7f1-164b-45a7-8e5a-c0c260815f9a",0);
> end
>
> I am not getting any error (Rule validation or any other) when adding
> package with my rule to rulebase, but when getting following error, when
> rulebase is used thereafter:
>
> java.lang.NoClassDefFoundError:
> rules/sl/Rule_7d7fa7f1_164b_45a7_8e5a_c0c260815f9a_0
>        at
>
> rules.sl.Rule_7d7fa7f1_164b_45a7_8e5a_c0c260815f9a_0AccumulateExpression0Invoker.evaluate(Unknown
> Source)
>        at
>
> org.drools.base.accumulators.JavaAccumulatorFunctionExecutor.reverse(JavaAccumulatorFunctionExecutor.java:91)
>        at org.drools.rule.Accumulate.reverse(Accumulate.java:151)
>        at
> org.drools.reteoo.AccumulateNode.modifyTuple(AccumulateNode.java:376)
>        at
> org.drools.reteoo.AccumulateNode.retractObject(AccumulateNode.java:292)
>        at
>
> org.drools.reteoo.SingleObjectSinkAdapter.propagateRetractObject(SingleObjectSinkAdapter.java:32)
>        at
>
> org.drools.reteoo.RightInputAdapterNode.retractTuple(RightInputAdapterNode.java:124)
>        at
>
> org.drools.reteoo.SingleTupleSinkAdapter.propagateRetractTuple(SingleTupleSinkAdapter.java:38)
>        at org.drools.reteoo.FromNode.retractTuple(FromNode.java:130)
>        at
>
> org.drools.reteoo.CompositeTupleSinkAdapter.propagateRetractTuple(CompositeTupleSinkAdapter.java:52)
>        at org.drools.reteoo.JoinNode.retractTuple(JoinNode.java:231)
>        at
>
> org.drools.reteoo.CompositeTupleSinkAdapter.propagateRetractTuple(CompositeTupleSinkAdapter.java:52)
>        at org.drools.reteoo.JoinNode.retractObject(JoinNode.java:191)
>        at
>
> org.drools.reteoo.CompositeObjectSinkAdapter.propagateRetractObject(CompositeObjectSinkAdapter.java:375)
>        at
> org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:189)
>        at org.drools.reteoo.Rete.retractObject(Rete.java:215)
>        at
> org.drools.reteoo.ReteooRuleBase.retractObject(ReteooRuleBase.java:211)
>        at
>
> org.drools.reteoo.ReteooWorkingMemory.doRetract(ReteooWorkingMemory.java:79)
>        at
>
> org.drools.common.AbstractWorkingMemory.retract(AbstractWorkingMemory.java:1023)
>        at
>
> org.drools.common.AbstractWorkingMemory.retract(AbstractWorkingMemory.java:982)
>        at
> com.sensorlogic.rules.RuleAgent.retractMatchingFact(RuleAgent.java:283)
>        at com.sensorlogic.rules.RuleAgent.processFact(RuleAgent.java:264)
>        at com.sensorlogic.rules.RuleAgent.run(RuleAgent.java:342)
>        at
>
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
>        at
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
>        at java.lang.Thread.run(Thread.java:595)
>
> I will appreciate any insight with this problem. My process of
> adding/updating rules dynamically works with all other rules I am using but
> only has issues with using 'accumulate' CE. Has someone encountered this
> before? Or just any ideas on what can cause NoClassDefFound for my added
> rule?
> --
> View this message in context:
> http://www.nabble.com/NoClassDefFoundError-when-dynamically-updating-rulebase-for-rule-using-%27accumulate%27-CE-tp17765904p17765904.html
> Sent from the drools - user mailing list archive at Nabble.com.
>
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>



-- 
Edson Tirelli
JBoss Drools Core Development
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @ www.jboss.com
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