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 java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.ejb.EJB;
import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import fi.insomnia.bortal.beans.PlaceMapBeanLocal;
import fi.insomnia.bortal.beans.UserBeanLocal;
import fi.insomnia.bortal.enums.Permission;
import fi.insomnia.bortal.enums.RolePermission;
import fi.insomnia.bortal.exceptions.PermissionDeniedException;
import fi.insomnia.bortal.model.EventMap;
import fi.insomnia.bortal.model.Place;
import fi.insomnia.bortal.model.User;
/**
*
* @author tuukka
*/
public class PlaceMap extends HttpServlet {
private static final Logger logger = LoggerFactory.getLogger(PlaceMap.class);
/**
*
*/
private static final long serialVersionUID = 8769688627918936258L;
@EJB
private PlaceMapBeanLocal placemapBean;
@EJB
private UserBeanLocal userbean;
private static final String PARAMETER_EVENT_MAP_ID = "mapid";
/**
* 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 {
logger.debug("Begin processing request");
// response.setContentType("text/html;charset=UTF-8");
// PrintWriter out = response.getWriter();
ServletOutputStream ostream = null;
try {
// Integer placeId = getIntegerParameter(request,
// PARAMETER_SELECTED_PLACE_ID);
Integer mapId = getIntegerParameter(request, PARAMETER_EVENT_MAP_ID);
// Integer userId = getIntegerParameter(request,
// PARAMETER_CURRENT_USER_ID); Tämä saadaan beaneilta.
EventMap map = placemapBean.findMap(mapId);
logger.debug("Mapid: {}", mapId);
ostream = response.getOutputStream();
if (map.getMapData() == null) {
logger.debug("Map does not have background!");
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
ostream.print("Map has no background!");
} else {
response.setContentType("image/jpeg");
printPlaceMapToStream(ostream, "jpg", map);
logger.debug("Flushing ostream");
ostream.flush();
}
/*
* 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>");
*/
} catch (PermissionDeniedException e) {
logger.debug("Permission deniedn. Returning SC_NOT_FOUND!");
response.setContentType("text/html;charset=UTF-8");
response.setStatus(HttpServletResponse.SC_NOT_FOUND);
ostream = response.getOutputStream();
ostream.print("Permission denied!");
} finally {
if (ostream != null) {
ostream.close();
}
}
}
private void printPlaceMapToStream(OutputStream outputStream, String filetype, EventMap map) throws IOException {
userbean.fatalPermission(Permission.MAP, RolePermission.READ, "User tried to print the placemap to Stream");
User user = userbean.getCurrentUser();
long begin = new Date().getTime();
// List<Place> selectedPlaceList = placeBean.findPlaces(placeIds);
// logger.debug("SelectedPlaceList: size {}, {} ",
// selectedPlaceList.size(), selectedPlaceList);
// map = eventMapFacade.find(eventId, mapId);
// if (map == null) {
// throw new PermissionDeniedException(secubean, user,
// "Map not found with id: " + mapId + " and event id: " +
// eventbean.getCurrentEvent());
// }
// logger.debug("Got map object {}", map);
List<Place> places = map.getPlaces();
user = userbean.getCurrentUser();
// List<Place> selectedPlaces = placemapBean.findSelectedPlaces(map);
BufferedImage image = ImageIO.read(new ByteArrayInputStream(map.getMapData()));
Graphics2D g2d = image.createGraphics();
for (Place place : places) {
drawPlace(place, g2d, user);
}
// BufferedImage image = map.getMapWithPlaces(, selectedPlaces);
logger.debug("Prewrite {}", new Date().getTime() - begin);
ImageIO.write(image, filetype, outputStream);
logger.debug("postwrite {}", new Date().getTime() - begin);
}
/***
* 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>
private static final Color RESERVED_COLOR = Color.RED;
private static final Color SELECTED_COLOR = Color.BLUE;
private static final Color OWNED_COLOR = Color.GREEN;
private static final Color BORDER_COLOR = Color.BLACK;
private static final Color LOCKED_COLOR = Color.DARK_GRAY;
private static final int BORDER_WIDTH = 2;
private static void drawPlace(Place p, Graphics2D g, User user) {
Color color = null;
if (!p.isBuyable()) {
color = LOCKED_COLOR;
}
if (p.isReservedFor(user)) {
color = SELECTED_COLOR;
} else if (user.equals(p.getCurrentUser())
|| (p.getGroup() != null && user.equals(p.getGroup().getCreator()))
|| (p.getPlaceReserver() != null && user.equals(p.getPlaceReserver().getUser()))) {
color = OWNED_COLOR;
} else if (p.isTaken()) {
color = RESERVED_COLOR;
}
g.setColor(BORDER_COLOR);
g.draw(new Rectangle(p.getMapX(), p.getMapY(), p.getWidth(), p.getHeight()));
if (color != null) {
g.setColor(color);
g.fill(new Rectangle(p.getMapX() + BORDER_WIDTH, p.getMapY() + BORDER_WIDTH, p.getWidth() - BORDER_WIDTH, p.getHeight() - BORDER_WIDTH));
}
}
}