package org.drools.test;

import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseConfiguration;
import org.drools.KnowledgeBaseFactory;
import org.drools.RuleBaseConfiguration;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.io.ResourceFactory;
import org.drools.runtime.StatefulKnowledgeSession;

public class RuleTester {
            
    private static final int MAX_EVENTS = 5;
    
    public class Foo { }            

    public void test() {    

        KnowledgeBaseConfiguration config =   KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
        ((RuleBaseConfiguration)config).setRuleBaseUpdateHandler( null );
        KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(config);
                
        StatefulKnowledgeSession session = kbase.newStatefulKnowledgeSession();
                
        for (int i=0; i<MAX_EVENTS; i++) {
            session.insert(new Foo());
        }
        
        for (int i=1; i<3; i++) {            
            KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
            kbuilder.add( ResourceFactory.newClassPathResource( "test"+i+".drl" ), ResourceType.DRL);
            
            if( kbuilder.hasErrors() ) {
                System.out.println( kbuilder.getErrors() );
                return;
            }
            
            kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
            
            int fireCount = session.fireAllRules();
            
            System.out.println("Test"+i+".drl , number of rules fired = "+fireCount);            
            
        }
        
        session.dispose();    
        
    }    
    
    public static void main(String[] args) {
        RuleTester tester = new RuleTester();
        tester.test();
    }
        
}