com.saludtec.web.DepartamentosWeb.java Source code

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Here is the source code for com.saludtec.web.DepartamentosWeb.java

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/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.saludtec.web;

import com.saludtec.entidades.Departamentos;
import com.saludtec.jpa.DepartamentosEjb;
import com.saludtec.jpa.exceptions.NonexistentEntityException;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jboss.weld.context.ejb.Ejb;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

/**
 *
 * @author saintec
 */
@WebServlet(name = "DepartamentosWeb", urlPatterns = { "/departamentos/*" })
public class DepartamentosWeb extends HttpServlet {

    @EJB
    DepartamentosEjb ejb;
    JSONObject obj;
    JSONArray objArray;

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            String servicio = request.getRequestURI().replace("/Adminio/departamentos/", "");
            switch (servicio) {
            case "getstate":
                traerDepartamento(request).writeJSONString(out);
                break;

            case "liststates":
                listarDepartamentos().writeJSONString(out);
                break;

            case "savestate":
                guardarDepartamento(request).writeJSONString(out);
                break;

            case "updatestate":
                editarDepartamento(request).writeJSONString(out);
                break;

            case "deletestate":
                eliminarDepartamento(request).writeJSONString(out);
                break;

            default:
                obj = new JSONObject();
                obj.put("error", "404 - El servicio " + servicio + " no existe");
                obj.writeJSONString(out);
                break;

            }
        } catch (NonexistentEntityException ex) {
            Logger.getLogger(DepartamentosWeb.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    private JSONObject traerDepartamento(HttpServletRequest request) throws NonexistentEntityException {
        Departamentos departamento = ejb
                .traerDepartamentos(Integer.parseInt(request.getParameter("idDepartamento")));
        obj = new JSONObject();
        obj.put("idDepartamento", departamento.getIdDepartamento());
        obj.put("departamento", departamento.getDepartamento());
        return obj;
    }

    private JSONArray listarDepartamentos() throws NonexistentEntityException {
        List<Departamentos> departamentos = ejb.traerDepartamentos();
        objArray = new JSONArray();
        for (Departamentos departamento : departamentos) {
            obj = new JSONObject();
            obj.put("idDepartamento", departamento.getIdDepartamento());
            obj.put("departamento", departamento.getDepartamento());
            objArray.add(obj);
        }
        return objArray;
    }

    private JSONObject guardarDepartamento(HttpServletRequest request) throws NonexistentEntityException {
        Departamentos departamento = new Departamentos();
        departamento.setDepartamento(request.getParameter("departamento"));
        departamento = ejb.crear(departamento);
        obj = new JSONObject();
        obj.put("idDepartamento", departamento.getIdDepartamento());
        obj.put("departamento", departamento.getDepartamento());
        return obj;
    }

    private JSONObject editarDepartamento(HttpServletRequest request) throws NonexistentEntityException {
        Departamentos departamento = new Departamentos();
        departamento.setIdDepartamento(Integer.parseInt(request.getParameter("idDepartamento")));
        departamento.setDepartamento(request.getParameter("departamento"));
        ejb.editar(departamento);
        obj = new JSONObject();
        obj.put("mensaje", "ok");
        return obj;
    }

    private JSONObject eliminarDepartamento(HttpServletRequest request) throws NonexistentEntityException {
        ejb.eliminar(Integer.parseInt(request.getParameter("idDepartamento")));
        obj = new JSONObject();
        obj.put("menasaje", "eliminado");
        return obj;
    }

    // <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>

}