/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mobileAPI;
import entity.Courserates;
import entity.Enrollment;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jpa.controllers.CourseratesJpaController;
import jpa.controllers.EnrollmentJpaController;
import jpa.controllers.exceptions.IllegalOrphanException;
import jpa.controllers.exceptions.PreexistingEntityException;
/**
*
* @author Geymen
*/
public class RateCourseServlet 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();
Integer userID;
userID = Integer.valueOf(request.getParameter("userID"));
Integer courseID;
courseID = Integer.valueOf(request.getParameter("courseID"));
Integer rating;
rating = Integer.valueOf(request.getParameter("rating"));
EnrollmentJpaController enrollentJPAController = new EnrollmentJpaController();
Enrollment enrollment = enrollentJPAController.findEnrollment(userID, courseID);
boolean success = false;
if (enrollment != null) {
Courserates courseRates = new Courserates();
courseRates.setId(enrollment.getId());
courseRates.setPoints(rating);
courseRates.setSysdate(new Date());
courseRates.setEnrollment(enrollment);
CourseratesJpaController courseratesJPAController = new CourseratesJpaController();
try {
courseratesJPAController.create(courseRates);
success = true;
} catch (IllegalOrphanException ex) {
success = false;
Logger.getLogger(RateCourseServlet.class.getName()).log(Level.SEVERE, null, ex);
} catch (PreexistingEntityException ex) {
success = false;
Logger.getLogger(RateCourseServlet.class.getName()).log(Level.SEVERE, null, ex);
} catch (Exception ex) {
success = false;
Logger.getLogger(RateCourseServlet.class.getName()).log(Level.SEVERE, null, ex);
}
}
try {
/* TODO output your page here. You may use following sample code. */
// out.println("<!DOCTYPE html>");
// out.println("<html>");
// out.println("<head>");
// out.println("<title>Servlet RateCourseServlet</title>");
// out.println("</head>");
// out.println("<body>");
// out.println("<h1>Servlet RateCourseServlet at " + request.getContextPath() + "</h1>");
// out.println("</body>");
// out.println("</html>");
if (success) {
out.println("1");
} else {
out.println("-1");
}
} finally {
out.close();
}
}
// <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>
}