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:
<http://drools.46999.n3.nabble.com/file/n4021008/01_Fact.bmp> 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");endrule "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/TestSnapshotenableBasicAuthentication=trueusername=adminpassword=adminname=drooltest*
10. 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 implementationSLF4J: 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
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