package server;



import java.util.Iterator;



import com.hp.hpl.jena.query.Query;

import com.hp.hpl.jena.query.QueryExecution;

import com.hp.hpl.jena.query.QueryExecutionFactory;

import com.hp.hpl.jena.query.QueryFactory;

import com.hp.hpl.jena.query.QuerySolution;

import com.hp.hpl.jena.query.ResultSet;

import com.hp.hpl.jena.rdf.model.Literal;

import com.hp.hpl.jena.rdf.model.Model;



import jade.core.behaviours.OneShotBehaviour;



public class TraderAgentBehaviourFSM_ExecuteBehaviour extends OneShotBehaviour

{

	int transition = 2;



	public void action()

	{

		TraderAgent myAgentTA = (TraderAgent)myAgent;

		String queryMessage = myAgentTA.getLastQuery();

		

		System.out.println("\n<Trader-Agent> The complete query is: \n" + queryMessage);

		Model m = myAgentTA.getMem().getModel();

		Query query = QueryFactory.create(queryMessage);

		QueryExecution qexec = QueryExecutionFactory.create(query,m);

		

		try

		{

			ResultSet results = qexec.execSelect();

			while(results.hasNext())

			{

				QuerySolution soln = results.nextSolution();

				System.out.println("\n<Trader-Agent> The 'QuerySolution' is: " + soln.toString());

				

				Iterator it = soln.varNames();

				System.out.println("\n<Trader-Agent> The variables contained: ");

				while(it.hasNext())

				{

					String varName = (String)it.next();

					System.out.println(" --> " + varName);					

				}

				

				Literal l = soln.getLiteral("id");

				System.out.println("\n<Trader-Agent> Query Result: " + l.getString());

				myAgentTA.setLastResult(l.getString());

			}

		}

		finally{qexec.close();}

	}

	

	public int onEnd()

	{

		return transition;

	}

}