getuser_bycity.java Source code

Introduction

Here is the source code for getuser_bycity.java

Source

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

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import model.AgentDetail;
import model.CustomerDetail;
import model.Login;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.criterion.Restrictions;
import util.NewHibernateUtil;

/**
 *
 * @author rushin
 */
public class getuser_bycity extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {

            SessionFactory sf = NewHibernateUtil.getSessionFactory();
            Session ss = sf.openSession();
            Transaction tr = ss.beginTransaction();

            String city = "";

            HttpSession hs = request.getSession();
            Login ln = (Login) hs.getAttribute("user");

            System.out.println(ln.getUName() + "is a " + ln.getURole());

            switch (ln.getURole()) {
            case "agent":
                Criteria cr = ss.createCriteria(AgentDetail.class);
                cr.add(Restrictions.eq("uId", ln));
                //                   / cr.add(Restrictions.ne(city, ln))
                ArrayList<AgentDetail> ad = (ArrayList<AgentDetail>) cr.list();
                city = ad.get(0).getACity();
                break;

            case "customer":
                Criteria cr1 = ss.createCriteria(CustomerDetail.class);
                cr1.add(Restrictions.eq("uId", ln));
                ArrayList<CustomerDetail> cd = (ArrayList<CustomerDetail>) cr1.list();
                city = cd.get(0).getCCity();
                break;

            default:
                System.out.println("No city");

            }

            System.out.println(city + " is the city");

            Criteria cr = ss.createCriteria(AgentDetail.class);
            cr.add(Restrictions.eq("aCity", city));
            cr.add(Restrictions.ne("uId", ln));
            ArrayList<AgentDetail> adl = (ArrayList<AgentDetail>) cr.list();

            System.out.println("the size of agent aray is " + adl.size());

            Criteria cr1 = ss.createCriteria(CustomerDetail.class);
            cr1.add(Restrictions.ne("uId", ln));
            cr1.add(Restrictions.eq("cCity", city));

            ArrayList<CustomerDetail> cdl = (ArrayList<CustomerDetail>) cr1.list();

            System.out.println("the size of cust aray is " + cdl.size());

            if (!adl.isEmpty() && !cdl.isEmpty()) {
                request.setAttribute("adl", adl);
                request.setAttribute("cdl", cdl);
                RequestDispatcher rd = request.getRequestDispatcher("creategroup.jsp");
                rd.forward(request, response);
            } else if (!adl.isEmpty()) {
                request.setAttribute("adl", adl);
                RequestDispatcher rd = request.getRequestDispatcher("creategroup.jsp");
                rd.forward(request, response);
            } else if (!cdl.isEmpty()) {
                request.setAttribute("cdl", cdl);
                RequestDispatcher rd = request.getRequestDispatcher("creategroup.jsp");
                rd.forward(request, response);
            } else {
                String msg = "Sorry, there are no users from your city.";
                request.setAttribute("msg", msg);
                RequestDispatcher rd = request.getRequestDispatcher("creategroup.jsp");
                rd.forward(request, response);
            }

        } catch (HibernateException e) {
            out.print(e.getMessage());
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}