/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package db;

import com.evolute.utils.error.ErrorLogger;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.faces.context.FacesContext;
import javax.servlet.http.HttpSession;

/**
 *
 * @author lluis
 */
public class Db {
//    String connectionURL = "jdbc:postgresql://evoserver:5432/siprp";    //testes
//    String connectionURL = "jdbc:postgresql://www.evolute.pt:5436/siprp";    //real
    String connectionURL = "jdbc:postgresql://localhost:5436/siprp";    //real

    String User = "postgres";
    String Pass = null;
    Connection connection = null;    
       
    /** Creates a new instance of Db */
    public Db() {
    }
    
    public Connection connect() throws Exception
    {
        Class.forName("org.postgresql.Driver").newInstance();
//        FacesContext fc = FacesContext.getCurrentInstance();
//        ApplicationBean1 application = JSFUtils.getApplicationBean(fc);
//        if(application.getConnection() == null)
//        {
            connection = DriverManager.getConnection(connectionURL, User, Pass);
//            application.setConnection(connection);
//        }

        connection = DriverManager.getConnection(connectionURL, User, Pass);
        HttpSession session = (HttpSession)FacesContext.getCurrentInstance().getExternalContext().getSession(true);
        session.setAttribute("connection", connection);
        return connection;
    }   
    
    public Connection getConnection()
    {
//        FacesContext fc = FacesContext.getCurrentInstance();
//        ApplicationBean1 application = JSFUtils.getApplicationBean(fc);
//        connection = application.getConnection();
        HttpSession session = (HttpSession)FacesContext.getCurrentInstance().getExternalContext().getSession(false);
        connection = (Connection) session.getAttribute("connection");
        return connection;
    }
    
    public Statement createStatement()
    {
        HttpSession session = (HttpSession)FacesContext.getCurrentInstance().getExternalContext().getSession(false);
        connection = (Connection) session.getAttribute("connection");
//        FacesContext fc = FacesContext.getCurrentInstance();
//        ApplicationBean1 application = JSFUtils.getApplicationBean(fc);
//        connection = application.getConnection();
        Statement st;
        try
        {
            st = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
            return st;
        }
        catch(Exception ex)
        {
			ErrorLogger.logException( ex );
            return null;
        }		        
    }    
}