QuitAI.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.IOException;

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.QuitEvent;
import org.mega.gasp.event.impl.QuitEventImpl;
import org.mega.gasp.platform.ActorSession;
import org.mega.gasp.platform.ApplicationInstance;
import org.mega.gasp.platform.MasterApplicationInstance;
import org.mega.gasp.platform.Session;
import org.mega.gasp.platform.impl.PlatformImpl;

/**
 * This servlet provide to the user unlog him to the joined Application
 * Instance. The HTTP parameters are : - aSID the ActorSession ID
 * 
 * @author PELLERIN Romain (pellerin@cnam.fr) - MEGA Project
 */

public class QuitAI extends HttpServlet {
  private Category cat;
  private PlatformImpl platform;

  public void init() {
    ServletContext app = getServletContext();
    platform = PlatformImpl.getPlatform();
    cat = Category.getInstance("PlatformImpl");
    cat.debug("QuitAI: called");
  }

  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws IOException, ServletException {
  }

  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws IOException, ServletException {

    try {
      // get http request parameters for login
      short aSID = Short.parseShort(request.getParameter("aSID"));

      // create quit event
      QuitEvent qe = new QuitEventImpl(aSID);

      // take the platform, the AI , the MAI and the Session associated to
      // ASID
      ApplicationInstance appIns = platform.getActorSessionOwner(aSID);

      if (appIns != null) {
        ActorSession aS = appIns.getActorSession(aSID);
        int sID = aS.getSessionID();

        MasterApplicationInstance masterApp = platform
            .getSessionOwner(sID);
        if (masterApp != null) {
          Session session = masterApp.getSession(sID);

          // raise event to AI
          appIns.onQuitEvent(qe);
          session.setActorSessionID(0);

          cat.debug("QuitAI: QuitEvent send by aSID n" + aSID
              + " to AI(" + appIns.getApplicationInstanceID()
              + ")");
        }
      }
    } catch (Exception e) {
      e.printStackTrace();
      cat.info("cannot comply to received quit AI request");
    }
  }

}