[rules-users] Problem with CEP/Fusion rules in Guvnor and RuleAgent: unable to determine operator for symbol [after]

[Michael Legart]

Hello Drools users

Given the following simple test rule:

rule "test rule 1"
when
    $e : Event();
    not( Event(id == $e.id && this after[0s,10s] $e ) )
then
    System.out.println("Hello");
end

placed in Guvnor and the following simple test project:

ruleagent.properties:
url=http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST

TestRuleAgent.java:

		RuleAgent agent = RuleAgent.newRuleAgent("/ruleagent.properties");
		RuleBase rb = agent.getRuleBase();

throws the following exception:

Exception in thread "main" org.drools.RuntimeDroolsException: unable to determine operator for symbol [after]
	at org.drools.base.evaluators.Operator.determineOperator(Operator.java:71)
	at org.drools.base.evaluators.Operator.readResolve(Operator.java:106)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1061)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1762)
[cut objectinputstream lines]
	at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189)
	at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:158)
	at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:50)
	at org.drools.agent.URLScanner.readPackage(URLScanner.java:148)
	at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:120)
	at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:96)
	at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:410)
	at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:362)
	at org.drools.agent.RuleAgent.configure(RuleAgent.java:347)
	at org.drools.agent.RuleAgent.init(RuleAgent.java:247)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147)
	at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:256)
	at ruleagent.RuleAgentTest.main(RuleAgentTest.java:16)

any ideas to what I am doing wrong here?

Thanks
Michael