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Java > Open Source Codes > nextapp > echo2 > webrender > servermessage > ClientConfigurationUpdate


1 /*
2  * This file is part of the Echo Web Application Framework (hereinafter "Echo").
3  * Copyright (C) 2002-2005 NextApp, Inc.
4  *
5  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6  *
7  * The contents of this file are subject to the Mozilla Public License Version
8  * 1.1 (the "License"); you may not use this file except in compliance with
9  * the License. You may obtain a copy of the License at
10  * http://www.mozilla.org/MPL/
11  *
12  * Software distributed under the License is distributed on an "AS IS" basis,
13  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14  * for the specific language governing rights and limitations under the
15  * License.
16  *
17  * Alternatively, the contents of this file may be used under the terms of
18  * either the GNU General Public License Version 2 or later (the "GPL"), or
19  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20  * in which case the provisions of the GPL or the LGPL are applicable instead
21  * of those above. If you wish to allow use of your version of this file only
22  * under the terms of either the GPL or the LGPL, and not to allow others to
23  * use your version of this file under the terms of the MPL, indicate your
24  * decision by deleting the provisions above and replace them with the notice
25  * and other provisions required by the GPL or the LGPL. If you do not delete
26  * the provisions above, a recipient may use your version of this file under
27  * the terms of any one of the MPL, the GPL or the LGPL.
28  */
29
30 package nextapp.echo2.webrender.servermessage;
31
32 import org.w3c.dom.Document JavaDoc;
33 import org.w3c.dom.Element JavaDoc;
34
35 import nextapp.echo2.webrender.ClientConfiguration;
36 import nextapp.echo2.webrender.ServerMessage;
37
38 /**
39  * Renders <code>ServerMessage</code> directives to store
40  * <code>ClientConfiguration</code> information on the client.
41  */
42 public class ClientConfigurationUpdate {
43
44     /**
45      * Renders a <code>ServerMessage</code> directive directing the
46      * client to store the provided <code>ClientConfiguration</code> information.
47      *
48      * @param serverMessage the outgoing <code>ServerMessage</code>
49      * @param clientConfiguration the <code>ClientConfiguration</code> information
50      */
51     public static void renderUpdateDirective(ServerMessage serverMessage, ClientConfiguration clientConfiguration) {
52         if (clientConfiguration == null) {
53             return;
54         }
55         Document JavaDoc document = serverMessage.getDocument();
56         Element JavaDoc messagePartElement = serverMessage.addPart(ServerMessage.GROUP_ID_INIT, "EchoClientConfiguration.MessageProcessor");
57         Element JavaDoc storeElement = document.createElement("store");
58         messagePartElement.appendChild(storeElement);
59
60         String JavaDoc[] propertyNames = clientConfiguration.getPropertyNames();
61         for (int i = 0; i < propertyNames.length; ++i) {
62             Element JavaDoc propertyElement = document.createElement("property");
63             storeElement.appendChild(propertyElement);
64             propertyElement.setAttribute("name", propertyNames[i]);
65             propertyElement.setAttribute("value", clientConfiguration.getProperty(propertyNames[i]));
66         }
67     }
68     
69     /** Non-instantiable class. */
70     private ClientConfigurationUpdate() { }
71 }
72
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