PlaceMap.java
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package fi.insomnia.bortal.servlet;
import fi.insomnia.bortal.facade.EventMapFacadeLocal;
import fi.insomnia.bortal.facade.PlaceFacadeLocal;
import fi.insomnia.bortal.facade.UserFacadeLocal;
import fi.insomnia.bortal.model.EventMap;
import fi.insomnia.bortal.model.EventPk;
import fi.insomnia.bortal.model.Place;
import fi.insomnia.bortal.model.User;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
*
* @author tuukka
*/
public class PlaceMap extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 8769688627918936258L;
public static final String PARAMETER_EVENT_MAP_ID = "mapid";
public static final String PARAMETER_SELECTED_PLACE_ID = "placeid";
public static final String PARAMETER_CURRENT_USER_ID = "userid";
public static final String PARAMETER_EVENT_ID = "eventid";
@EJB
private PlaceFacadeLocal placeFacade;
@EJB
private EventMapFacadeLocal eventMapFacade;
@EJB
private UserFacadeLocal userFacade;
/**
* 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 {
Integer eventId = getIntegerParameter(request, PARAMETER_EVENT_ID);
Integer placeId = getIntegerParameter(request, PARAMETER_SELECTED_PLACE_ID);
Integer mapId = getIntegerParameter(request, PARAMETER_EVENT_MAP_ID);
Integer userId = getIntegerParameter(request, PARAMETER_CURRENT_USER_ID);
Place place = null;
EventMap map = null;
if (placeId != null) {
EventPk pk = new EventPk();
pk.setEventId(eventId);
pk.setId(placeId);
place = placeFacade.find(pk);
}
if (place != null) {
map = place.getMap();
} else {
EventPk pk = new EventPk();
pk.setEventId(eventId);
pk.setId(mapId);
map =eventMapFacade.find(pk);
}
BufferedImage image = map.getMapWithPlaces();
if (userId != null) {
User user = userFacade.find(userId);
if(user != null) {
place.drawOwnedPlace(image);
}
}
if (place != null) {
place.drawSelectedPlace(image);
}
response.setContentType("image/png");
ImageIO.write(image, "png", response.getOutputStream());
/* TODO output your page here
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet PlaceMap</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet PlaceMap at " + request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
*/
} finally {
out.close();
}
}
public void addPlacesToMap() {
}
/***
* Convert request parameter into integer
* @param request
* @param parameter
* @return
*/
private static Integer getIntegerParameter(HttpServletRequest request, String parameter) {
try {
String valueString = request.getParameter(parameter);
Integer value = Integer.parseInt(valueString);
return value;
} catch (NumberFormatException nfe) {
}
return null;
}
// <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>
}