package com.sample;

import java.io.InputStreamReader;
import java.io.Reader;

import java.io.InputStreamReader;
import java.io.Reader;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.WorkingMemory;
import org.drools.compiler.PackageBuilder;
import org.drools.rule.Package;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;




public class DroolTest {
//	
//	public static void main(String args[]){
//		User u = new User();
//		u.setUserName("test");
//		System.out.println("user name - "+ u.getUserName());
//		
//	}
	


	public static final void main(String[] args) {
		try {

			
			Session session = InitSessionFactory.getInstance().getCurrentSession();

			// load up the rulebase
			RuleBase ruleBase = readRule();
			WorkingMemory workingMemory = ruleBase.newStatefulSession();

			/* pass a hibernate session to the working memory as a global */
//			session = factory.openSession();
			workingMemory.setGlobal("hibernateSession", session);

			workingMemory.fireAllRules();
			session.close();

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

	
	
	private static RuleBase readRule() throws Exception {
		// read in the source
		Reader source = new InputStreamReader(DroolTest.class
				.getResourceAsStream("/User.drl"));

		PackageBuilder builder = new PackageBuilder();

		// this will parse and compile in one step
		builder.addPackageFromDrl(source);

		// get the compiled package (which is serializable)
		Package pkg = builder.getPackage();

		// add the package to a rulebase (deploy the rule package).
		RuleBase ruleBase = RuleBaseFactory.newRuleBase();
		ruleBase.addPackage(pkg);
		return ruleBase;
	}


}