Re: [rules-users] API's used for loading process in Eclipse

[Manohar Kokkula]

Esteban, Sorry for the delay,

Yes, I compiled binary package in Guvnor,
I am getting same Exceptions if I keep kbase.getProcess():

java.lang.NullPointerException
    at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1090)
    at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:301)
    at com.simple.Mainclass.main(Mainclass.java:30)

Thanks and regards,
Manohar Kokkula
Mailto: manohar.kokk...@tcs.com

-----rules-users-boun...@lists.jboss.org wrote: -----

To: Rules Users List <rules-users@lists.jboss.org>
From: Esteban Aliverti
Sent by: rules-users-boun...@lists.jboss.org
Date: 01/09/2012 08:34PM
Subject: Re: [rules-users] API's used for loading process in Eclipse

Have you compiled your package in Guvnor?

What is the result of kbase.getProcesses() ?

Best Regards,

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com

2012/1/9 Manohar Kokkula <manohar.kokk...@tcs.com>

Conten in ProcessChangeSet.xml:


<change-set xmlns='http://drools.org/drools-5.0/change-set'
    xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
    xs:schemaLocation='http://drools.org/drools-5.0/change-set /home/manohar/Desktop/ChangeSet/ProcessExample-xsd/change-set-1.0.0.xsd' >
    <add>
         <resource source='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST' type='PKG' />
    </add>
</change-set>

I downloaded change-set-1.0.0.xsd and kept in the folder ChangeSet.

Thanks and regards,
Manohar Kokkula

Mailto: manohar.kokk...@tcs.com

-----rules-users-boun...@lists.jboss.org wrote: -----

To: Rules Users List <rules-users@lists.jboss.org>
From: Esteban Aliverti
Sent by: rules-users-boun...@lists.jboss.org
Date: 01/09/2012 08:16PM
Subject: Re: [rules-users] API's used for loading process in Eclipse

What is the content of com/simple/ProcessChangeSet.xml?

Best Regards,

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com

2012/1/9 Manohar Kokkula <manohar.kokk...@tcs.com>

Hi

I am using Drool-5.2.0 final, Guvnor 5.2.0 final and designer-2.0-jboss.war in Drools-Guvnor.
In Designer, I created simple process with start node, one task node, and end node. I made Task type of task node as "Script". I entered simple java code as System.out.print("Hi "); in the Script option of the task node.
Sorry I dont know API's used for loading this process in Eclipse.
So can any one tell me the API's used for loading this process in Eclipse.?

I tried alot, but i am getting exceptions as:

java.lang.NullPointerException
    at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1090)
    at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:301)
    at com.simple.Mainclass.main(Mainclass.java:30)


I am also sending my code:


package com.simple;

import org.drools.KnowledgeBase;
import org.drools.agent.KnowledgeAgent;
import org.drools.agent.KnowledgeAgentFactory;
import org.drools.io.Resource;
import org.drools.io.ResourceFactory;
import org.drools.rule.FactType;
import org.drools.runtime.StatefulKnowledgeSession;

public class Mainclass {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        try
        {
            KnowledgeBase kbase=readBase();
            StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
      
            ksession.startProcess("sayhi"); //ID of the process which is created in Designer
           
           // ksession.fireAllRules();
           
            ksession.dispose();
           
           
        }
        catch(Throwable t)
        {
           
            t.printStackTrace();
           
           
        }

    }
    private static KnowledgeBase readBase()
    {
       
        KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent("AccountAgent");
       
        Resource changeset = ResourceFactory.newClassPathResource("com/simple/ProcessChangeSet.xml");
       
       
        kagent.applyChangeSet(changeset);
       
        KnowledgeBase kbase = kagent.getKnowledgeBase();
 
    return kbase;
       
           
    }

}



Please guide me in proper way.
Thanks in advance.

Thanks and regards,
Manohar Kokkula
Sub Focus Area Product Expert - BPM/BRE
CEG - Open Source Technology Group
YantraPark,Thane(West)
Mumbai
Ph:- +91 8793839453
Mailto: manohar.kokk...@tcs.com
Website: http://www.tcs.com
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