I suspect the version of drools and guvnor you are using are not identical.
Use of RuleAgent is most certainly not helping. Did you look at the /droolsjbpm/guvnor/guvnor-examples demonstration using KnowledgeAgent? On 29 November 2012 12:59, Hushen Savani <[email protected]>wrote: > *Hi Team, * > > * * > > * **I'm a newbie to Drools. Please help me here. * > > * * > > *1. I have created a Package named "org.sample". * > > * * > > *2. I have created a Model named "TestModel" in the same package. * > > * * > > *3. I have created a Fact named "Number" in the same Model. * > > * * > > *4. "Number" fact is as following: * > > ** ** > > [image: Fact]**** > > ** ** > > *5. Then I have created a category named "TestCategory". * > > * * > > *6. Then created a sample Rule named "ruletest" in that category. * > > * * > > *7. Rule is created as following:* > > ** ** > > *rule "numberone is equal to numbertwo"* > > * when* > > * n : Number(numberone == numbertwo);* > > * then* > > * n.setMessage("numberone is equal to numbertwo");* > > *end * > > * * > > *rule "numberone is greater than numbertwo"* > > * when* > > * n : Number(numberone > numbertwo);* > > * then* > > * n.setMessage("numberone is greater than > numbertwo");* > > *end* > > * * > > *rule "numberone is less than numbertwo"* > > * when* > > * n : Number(numberone < numbertwo);* > > * then* > > * n.setMessage("numberone is less than numbertwo"); > * > > *end* > > * * > > * 8. Built the package and created the snapshot. * > > * * > > *9. Wrote a JAVA POJO client as following: * > > * * > > *package* org.sample;**** > > ** ** > > *import* org.drools.RuleBase;**** > > *import* org.drools.WorkingMemory;**** > > *import* org.drools.agent.RuleAgent;**** > > *import* org.drools.definition.type.FactType;**** > > ** ** > > *public* *class* DroolGuvnor {**** > > *public* *static* *void* main(String[] args) > *throws*InstantiationException, IllegalAccessException { > **** > > RuleAgent ruleAgent = RuleAgent.*newRuleAgent*( > "/Guvnor.properties");**** > > RuleBase ruleBase = ruleAgent.getRuleBase();**** > > **** > > FactType factType = ruleBase.getFactType("org.sample.Number"); > **** > > Object obj = factType.newInstance();**** > > **** > > factType.set(obj, "numberone", 2);**** > > factType.set(obj, "numbertwo", 1);**** > > **** > > WorkingMemory workingMemory = ruleBase.newStatefulSession();** > ** > > workingMemory.insert(obj);**** > > workingMemory.fireAllRules();**** > > **** > > System.*out*.println(factType.get(obj, "message"));**** > > }**** > > }**** > > * * > > * * > > * 10. The "guvnor.properties" file is as following: * > > * * > > url= > http://localhost:10080/guvnor-5.5.0.Final-tomcat-6.0/org.drools.guvnor.Guvnor/package/org.sample/TestSnapshot > **** > > enableBasicAuthentication=true**** > > username=*admin***** > > password=*admin***** > > name=*drooltest*** > > * * > > * 11. But, when I run the client, I get following exception: * > > * * > > SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".**** > > SLF4J: Defaulting to no-operation (NOP) logger implementation**** > > SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further > details.**** > > Exception in thread "main" *java.lang.ClassCastException*: > [Lorg.drools.rule.Package; cannot be cast to org.drools.rule.Package**** > > at org.drools.agent.HttpClientImpl.fetchPackage(* > HttpClientImpl.java:86*)**** > > at org.drools.agent.URLScanner.readPackage(*URLScanner.java:171*)*** > * > > at org.drools.agent.URLScanner.getChangeSet(*URLScanner.java:143*)** > ** > > at org.drools.agent.URLScanner.loadPackageChanges(* > URLScanner.java:119*)**** > > at org.drools.agent.RuleAgent.checkForChanges(*RuleAgent.java:431*)* > *** > > at org.drools.agent.RuleAgent.refreshRuleBase(*RuleAgent.java:383*)* > *** > > at org.drools.agent.RuleAgent.configure(*RuleAgent.java:368*)**** > > at org.drools.agent.RuleAgent.init(*RuleAgent.java:268*)**** > > at org.drools.agent.RuleAgent.newRuleAgent(*RuleAgent.java:208*)**** > > at org.drools.agent.RuleAgent.newRuleAgent(*RuleAgent.java:168*)**** > > at org.drools.agent.RuleAgent.newRuleAgent(*RuleAgent.java:277*)**** > > at org.sample.DroolGuvnor.main(*DroolGuvnor.java:10*)**** > > ** ** > > *Please help on this. Thanks. * > > * * > > * * > > *Best Regards, * > > *Hushen Savani* > > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > >
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