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Java > Open Source Codes > kelp > wireless > presentation > WelcomeServlet


1 /*
2  * Enhydra Java Application Server Project
3  *
4  * The contents of this file are subject to the Enhydra Public License
5  * Version 1.1 (the "License"); you may not use this file except in
6  * compliance with the License. You may obtain a copy of the License on
7  * the Enhydra web site ( http://www.enhydra.org/ ).
8  *
9  * Software distributed under the License is distributed on an "AS IS"
10  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
11  * the License for the specific terms governing rights and limitations
12  * under the License.
13  *
14  * The Initial Developer of the Enhydra Application Server is Lutris
15  * Technologies, Inc. The Enhydra Application Server and portions created
16  * by Lutris Technologies, Inc. are Copyright Lutris Technologies, Inc.
17  * All Rights Reserved.
18  *
19  * Contributor(s):
20  *
21  */
22 package kelp.wireless.presentation;
23
24 // Xerces imports
25 import org.w3c.dom.Element JavaDoc;
26
27 // Servlet imports
28 import javax.servlet.ServletException JavaDoc;
29 import javax.servlet.ServletOutputStream JavaDoc;
30 import javax.servlet.http.HttpServlet JavaDoc;
31 import javax.servlet.http.HttpServletRequest JavaDoc;
32 import javax.servlet.http.HttpServletResponse JavaDoc;
33
34 // Standard imports
35 import java.io.IOException JavaDoc;
36 import java.io.PrintWriter JavaDoc;
37
38 //
39 public class WelcomeServlet extends HttpServlet JavaDoc {
40     public void doGet(HttpServletRequest JavaDoc request,
41                       HttpServletResponse JavaDoc response) throws ServletException JavaDoc,
42                       IOException JavaDoc {
43         ServletOutputStream JavaDoc out;
44         WelcomeWML welcome;
45         byte[] buffer;
46
47         welcome = createWelcomePage(request);
48         buffer = welcome.toDocument().getBytes();
49         response.setContentType("text/vnd.wap.wml");
50         response.setContentLength(buffer.length);
51         out = response.getOutputStream();
52         out.write(buffer);
53         out.flush();
54     }
55
56     private WelcomeWML createWelcomePage(HttpServletRequest JavaDoc request) {
57         WelcomeWML welcome = new WelcomeWML();
58         Element JavaDoc element = welcome.getElementGreeting();
59         String JavaDoc lang = "EN";
60
61         lang = request.getParameter("lang");
62         String JavaDoc greeting = "Hello";
63
64         if (lang == null) {
65
66             // keep default
67 } else if (lang.equalsIgnoreCase("HI")) {
68             greeting = "Aloha";
69         } else if (lang.equalsIgnoreCase("FR")) {
70             greeting = "Bon Jour";
71         }
72         element.getFirstChild().setNodeValue(greeting);
73         return welcome;
74     }
75
76 }
77
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