ChatServlet.java :  » Game » mages » org » mega » gasp » platform » servlets » Java Open Source

/***
 * GASP: a gaming services platform for mobile multiplayer games.
 * Copyright (C) 2004 CNAM/INT
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * Contact: gasp-team@objectweb.org
 *
 * Author: Romain Pellerin
 */
package org.mega.gasp.platform.servlets;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Iterator;
import java.util.Vector;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Category;
import org.mega.gasp.event.DataEvent;
import org.mega.gasp.event.EndEvent;
import org.mega.gasp.event.Event;
import org.mega.gasp.event.JoinEvent;
import org.mega.gasp.event.QuitEvent;
import org.mega.gasp.event.StartEvent;
import org.mega.gasp.moods.CustomTypes;
import org.mega.gasp.platform.impl.PlatformImpl;

/**
 * This servlet provide to send in game datas to GASP. The input stream is a
 * byte[] contains (sid,hashtable).
 * 
 * @author PELLERIN Romain (pellerin@cnam.fr) - MEGA Project
 */
public class ChatServlet extends HttpServlet {
  private Category cat;

  private PlatformImpl platform;

  public void init() {
    ServletContext app = getServletContext();
    platform = PlatformImpl.getPlatform();
    cat = Category.getInstance("InGameServlet");
    cat.debug("Log4J InGame Category instanciated!!!!!!!!!!");
  }

  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws IOException, ServletException {
  }
  
  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws IOException, ServletException {
    DataInputStream dis = new DataInputStream(request.getInputStream());
    DataOutputStream dos = null;
      dis.close();

      dos = new DataOutputStream(response.getOutputStream());
    try {
      for (int i=60;i<70;i++){
        System.out.println("Pringing " + i);
        dos.writeLong(i);dos.writeLong(i);dos.writeByte(0);dos.writeByte(11);
      dos.flush();
      Thread.sleep(i*10+50);
      }
    } catch (Exception e) {
      e.printStackTrace();
      cat.error("cannot comply to received in game request, cause: "
          + e.getMessage());
    } finally {
      if (dis != null)
        try {
          dis.close();
        } catch (Exception e) {
        }
      if (dos != null)
        try {
          dos.close();
        } catch (Exception e) {
        }
    }
  }

  /**
   * @param events
   * @throws Exception
   */
  private synchronized static int encodeEvents(Vector events, DataOutputStream dos,
      CustomTypes customTypes) throws Exception {
    dos.writeByte(events.size());
    for (Iterator iter = events.iterator(); iter.hasNext();) {
      Event e = (Event) iter.next();
      encodeEvent(e, dos, customTypes);
    }
    return events.size();

  }

  public synchronized static void encodeEvent(Event e, DataOutputStream dos,
      CustomTypes customTypes) throws Exception {
    int code = e.getCode();
    dos.writeByte(code);
    switch (code) {
    case 1: // JoinEvent
      JoinEvent je = (JoinEvent) e;
      dos.writeShort(je.getActorSessionID());
      dos.writeUTF(je.getUsername());
      break;
    case 2: // StartEvent
      StartEvent se = (StartEvent) e;
      dos.writeShort(se.getActorSessionID());
      break;
    case 3:
      EndEvent ee = (EndEvent) e;
      dos.writeShort(ee.getActorSessionID());
      break;
    case 4:
      QuitEvent qe = (QuitEvent) e;
      dos.writeShort(qe.getActorSessionID());
      break;
    case 5:
      DataEvent de = (DataEvent) e;
      dos.writeShort(de.getActorSessionID());
      customTypes.encodeData(de.getData(), dos);
      break;
    default:
      break;
    }
  }
}