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:

<img src="http://drools.46999.n3.nabble.com/file/n4021008/01_Fact.bmp" border="0" alt="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:

<b>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</b>


    8. Built the package and created the snapshot.

    9. Wrote a JAVA POJO client as following:

<b>
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"));
        }
}
</b>


    10. The "guvnor.properties" file is as following:

<b>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</b>

    10. When I run the client, I get following exception:

<b>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)
</b>

Please help on this. Thanks.

Best Regards,
Hushen Savani

        
        
        
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