[rules-users] unable to update the changes (guvnor rules) to application using changeset

[srinivasasanda]

Hi All


I am not able to get the updated rules still i used change set , can any one
plz sort out this problem

The source code is

using this program i am printing the rule name in package for every five
seconds.
for first time it prints rule names in package, after that packages are not
available in kbase...

import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.agent.KnowledgeAgent;
import org.drools.agent.KnowledgeAgentFactory;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderError;
import org.drools.builder.KnowledgeBuilderErrors;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.definition.KnowledgePackage;
import org.drools.io.ResourceChangeScannerConfiguration;
import org.drools.io.ResourceFactory;
import org.drools.logger.KnowledgeRuntimeLogger;
import org.drools.logger.KnowledgeRuntimeLoggerFactory;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.StatelessKnowledgeSession;
import org.drools.agent.*;

public class ChangeSet1
{
        
    private ChangeSet1()
    {      
        
    } 
    
    
    public static synchronized ChangeSet1 start() 
    {
        try{
             if ( _instance == null)
             {
        
                _instance = new ChangeSet1();
 				String url="file:H:\\RuleFiles\\ChangeSet.xml";
				_kagent = KnowledgeAgentFactory.newKnowledgeAgent( "MyAgent" );
                System.out.println("after creating kagent");
	            _kagent.applyChangeSet(ResourceFactory.newUrlResource(url));
                System.out.println("after apply change set");
				//Create Knowledge Base
				_kbase = _kagent.getKnowledgeBase();
				ResourceChangeScannerConfiguration sconf= 
			
ResourceFactory.getResourceChangeScannerService().newResourceChangeScannerConfiguration();
				sconf.setProperty("drools.resource.scanner.interval", "5");
				ResourceFactory.getResourceChangeScannerService().configure(sconf);
				ResourceFactory.getResourceChangeNotifierService().start();
				ResourceFactory.getResourceChangeScannerService().start(); 
				System.out.println("After starting Notification service");
			 }
        }catch(Exception e)
        {
            System.out.println(e.getMessage());
        }
             return  _instance;
    }
        
	private static KnowledgeAgent _kagent;
	private static ChangeSet1 _instance;
	private static KnowledgeBase _kbase=null;
	private static StatelessKnowledgeSession _ksession=null;
	
	   public static void main(String[] args) 
    {
    	int counter=0;
        try 
        {
        	System.out.println("Before rule engine start ");
        	ChangeSet1.start();
        	System.out.println("After rule engine start ");
        	do{
        		_kbase = _kagent.getKnowledgeBase();
	            Collection<KnowledgePackage> kpackages =
_kbase.getKnowledgePackages();
	            System.out.println("no of packages"+kpackages.size());
	            for(KnowledgePackage kpackage : kpackages) 
	            {
	               for(org.drools.definition.rule.Rule rule1
:kpackage.getRules()) 
	               {
	                   String packname= rule1.getPackageName();
	                   String rulename=rule1.getName();
	                   System.out.println("This is : "+packname+" Packages and 
RuleName is " +rulename);
	               }
	            }
	            counter++;
	            
	            try{
	            Thread.sleep(10000); 
	            }catch (InterruptedException e){
	            	System.out.println("Sleep exception occured");
	            }
	            
        	}while(counter < 10000);

        }catch (Throwable t){ 
            t.printStackTrace();
        }
    }    
 

}




This is my changeset.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
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd'
>
    <add>
         <resource
source='http://localhost:8080/guvnor-5.3.0.Final-jboss-as-5.1/rest/packages/pricing/source'
type='DRL' />
         <resource
source='http://localhost:8080/guvnor-5.3.0.Final-jboss-as-5.1/rest/packages/search/source'
type='DRL' />
    </add>
</change-set>



 Output:--
Before rule engine start 
after creating kagent
after apply change set
After starting Notification service
After rule engine start 
no of packages2
This is : pricing Packages and  RuleName is ageprice
This is : pricing Packages and  RuleName is incomeprice
This is : pricing Packages and  RuleName is cpvprice
This is : search Packages and  RuleName is age
This is : search Packages and  RuleName is income
This is : search Packages and  RuleName is cpv
no of packages0                                                       
<after updating package count is 0 so no rules>
no of packages0
no of packages0



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