Divide by zero exceptions usually occur when you try to divide by zero. So … first question … is consolidatdVolume.avgVolume ever zero?
On 1 Nov 2013, at 16:17, gboro54 <[email protected]> wrote: > I have rules like the following: > > rule "Add Baseline to Context if it does not exists exists or not greater > then 0" > no-loop true > when > $context:Context($id:id,baselineParticipation==null || > > baselineParticipation.baselineRatio==null||baselineParticipation.baselineRatio==0) > then > modify($firm) {setBaselineParticipation(new > BaselineParticipation($id,new > BigDecimal(0.00485)))}; > > end > > rule "Calculate Participation Ratio" > no-loop true > when > > $context:Context(consolidatdVolume!=null,consolidatdVolume.avgVolume>0, > > volumeAccumulations["total"]!=null,volumeAccumulations["total"]>0, > > $ratio:(volumeAccumulations["total"]/consolidatdVolume.avgVolume)) > then > ConcurrentMap calculatedRatios=$firm.getCalculatedRatios(); > calculatedRatios.put("fparticipationRatio",new > BigDecimal($ratio)); > modify($firm){setCalculatedRatios(calculatedRatios)}; > end > > Despite the checks I get the following exception and any insight into why > would be great: > > Exception executing consequence for rule "Calculate Firm Participation > Ratio" in com.nasdaq.rms.nq.status: java.lang.ArithmeticException: / by zero > Exception executing consequence for rule "Calculate Firm Participation > Ratio" in com.nasdaq.rms.nq.status: java.lang.ArithmeticException: / by zero > at > org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39) > at > org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297) > at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221) > at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456) > at > org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710) > at > org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674) > at > org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230) > at > com.nasdaq.fq.rms.workflow.processor.rules.PerformanceStatusAssignmentProcessor.doWork(PerformanceStatusAssignmentProcessor.java:156) > at com.ften.ssr.workqueue.WorkItemRunnable.run(WorkItemRunnable.java:48) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:724) > Caused by: java.lang.ArithmeticException: / by zero > at ConditionEvaluatorda6271cf5a744b6bbdb9c717cae2edb7.evaluate(Unknown > Source) > at > org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:200) > at > org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157) > at org.drools.reteoo.AlphaNode.modifyObject(AlphaNode.java:154) > at > org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateModifyObject(CompositeObjectSinkAdapter.java:507) > at > org.drools.reteoo.CompositeObjectSinkAdapter.propagateModifyObject(CompositeObjectSinkAdapter.java:432) > at org.drools.reteoo.AlphaNode.modifyObject(AlphaNode.java:157) > at > org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateModifyObject(CompositeObjectSinkAdapter.java:507) > at > org.drools.reteoo.CompositeObjectSinkAdapter.propagateModifyObject(CompositeObjectSinkAdapter.java:432) > at > org.drools.reteoo.ObjectTypeNode.modifyObject(ObjectTypeNode.java:314) > at > org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:265) > at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:483) > at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:383) > at > org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:337) > at > com.nasdaq.rms.nq.status.Rule_Calculate_Firm_Participation_Ratio_cfb033f33c2b404fb2bff8e1b9af0175.defaultConsequence(Unknown > Source) > at > com.nasdaq.rms.nq.status.Rule_Calculate_Firm_Participation_Ratio_cfb033f33c2b404fb2bff8e1b9af0175DefaultConsequenceInvokerGenerated.evaluate(Unknown > Source) > at > com.nasdaq.rms.nq.status.Rule_Calculate_Firm_Participation_Ratio_cfb033f33c2b404fb2bff8e1b9af0175DefaultConsequenceInvoker.evaluate(Unknown > Source) > at > org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287) > ... 10 more > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Drools-5-5-divide-by-0-exception-tp4026582.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users
