fruitmachineservlet.java

J2ME MIDP_Example_Applications

// Copyright 2002 Nokia Corporation. 
// 
// THIS SOURCE CODE IS PROVIDED 'AS IS', WITH NO WARRANTIES WHATSOEVER, 
// EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS 
// FOR ANY PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE 
// OR TRADE PRACTICE, RELATING TO THE SOURCE CODE OR ANY WARRANTY OTHERWISE 
// ARISING OUT OF ANY PROPOSAL, SPECIFICATION, OR SAMPLE AND WITH NO 
// OBLIGATION OF NOKIA TO PROVIDE THE LICENSEE WITH ANY MAINTENANCE OR 
// SUPPORT. FURTHERMORE, NOKIA MAKES NO WARRANTY THAT EXERCISE OF THE 
// RIGHTS GRANTED HEREUNDER DOES NOT INFRINGE OR MAY NOT CAUSE INFRINGEMENT 
// OF ANY PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OWNED OR CONTROLLED 
// BY THIRD PARTIES 
// 
// Furthermore, information provided in this source code is preliminary, 
// and may be changed substantially prior to final release. Nokia Corporation 
// retains the right to make changes to this source code at 
// any time, without notice. This source code is provided for informational 
// purposes only. 
// 
// Nokia and Nokia Connecting People are registered trademarks of Nokia
// Corporation.
// Java and all Java-based marks are trademarks or registered trademarks of
// Sun Microsystems, Inc.
// Other product and company names mentioned herein may be trademarks or
// trade names of their respective owners.
// 
// A non-exclusive, non-transferable, worldwide, limited license is hereby 
// granted to the Licensee to download, print, reproduce and modify the 
// source code. The licensee has the right to market, sell, distribute and 
// make available the source code in original or modified form only when 
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package example.fruitmachine;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;


public class FruitMachineServlet
    extends HttpServlet 
{
    private UserDatabase userDatabase;
    private AdminProtocolHandler adminProtocolHandler;
    private GameProtocolHandler gameProtocolHandler;


    public void init(ServletConfig config) throws ServletException
    {
        super.init(config);

        userDatabase = new UserDatabase();

        // a default "guest" user, remove if needed
        userDatabase.createUser("guest", "");

        adminProtocolHandler = new AdminProtocolHandler(userDatabase);
        gameProtocolHandler  = new GameProtocolHandler(userDatabase);
    }


    public void doGet(HttpServletRequest  request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {
        try
        {
            String pathInfo = request.getPathInfo();
            
            if (pathInfo == null)
            {
                response.sendError(HttpServletResponse.SC_BAD_REQUEST,
                                   "Missing path info");
            }
            else if (pathInfo.startsWith("/admin"))
            {
                adminProtocolHandler.doGet(request, response);
            }
            else
            {
                response.sendError(HttpServletResponse.SC_BAD_REQUEST,
                                   "Unexpected path info");
            }
        }
        catch (IOException e)
        {
            e.printStackTrace();
            throw e;
        }
        catch (Exception e)
        {
            e.printStackTrace();
            throw new ServletException(e.getMessage());
        }
    }


    public void doPost(HttpServletRequest  request,
                       HttpServletResponse response)
        throws IOException, ServletException
    {
        try
        {
            String pathInfo = request.getPathInfo();

            if (pathInfo == null)
            {
                response.sendError(HttpServletResponse.SC_BAD_REQUEST,
                                   "Missing path info");
            }
            else if (pathInfo.startsWith("/admin"))
            {
                adminProtocolHandler.doPost(request, response);
            }
            else if (pathInfo.equals("/game"))
            {
                gameProtocolHandler.doPost(request, response);
            }
            else
            {
                response.sendError(HttpServletResponse.SC_BAD_REQUEST,
                                   "Unexpected path info");
            }
        }
        catch (IOException e)
        {
            e.printStackTrace();
            throw e;
        }
        catch (ServletException e)
        {
            e.printStackTrace();
            throw e;
        }
        catch (Exception e)
        {
            e.printStackTrace();
            throw new ServletException(e.getMessage());
        }
    }


    public String getServletInfo()
    {
        return "Fruit Machine Servlet.";
    }
}