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Java > Open Source Codes > org > jivesoftware > smackx > provider > MessageEventProvider


1 /**
2  * $RCSfile$
3  * $Revision: 2407 $
4  * $Date: 2004-11-02 20:37:00 -0300 (Tue, 02 Nov 2004) $
5  *
6  * Copyright 2003-2004 Jive Software.
7  *
8  * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
9  * you may not use this file except in compliance with the License.
10  * You may obtain a copy of the License at
11  *
12  * http://www.apache.org/licenses/LICENSE-2.0
13  *
14  * Unless required by applicable law or agreed to in writing, software
15  * distributed under the License is distributed on an "AS IS" BASIS,
16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17  * See the License for the specific language governing permissions and
18  * limitations under the License.
19  */
20
21 package org.jivesoftware.smackx.provider;
22
23 import org.jivesoftware.smack.packet.PacketExtension;
24 import org.jivesoftware.smack.provider.PacketExtensionProvider;
25 import org.jivesoftware.smackx.packet.MessageEvent;
26 import org.xmlpull.v1.XmlPullParser;
27
28 /**
29  *
30  * The MessageEventProvider parses Message Event packets.
31 *
32  * @author Gaston Dombiak
33  */
34 public class MessageEventProvider implements PacketExtensionProvider {
35
36     /**
37      * Creates a new MessageEventProvider.
38      * ProviderManager requires that every PacketExtensionProvider has a public, no-argument constructor
39      */
40     public MessageEventProvider() {
41     }
42
43     /**
44      * Parses a MessageEvent packet (extension sub-packet).
45      *
46      * @param parser the XML parser, positioned at the starting element of the extension.
47      * @return a PacketExtension.
48      * @throws Exception if a parsing error occurs.
49      */
50     public PacketExtension parseExtension(XmlPullParser parser)
51         throws Exception JavaDoc {
52         MessageEvent messageEvent = new MessageEvent();
53         boolean done = false;
54         while (!done) {
55             int eventType = parser.next();
56             if (eventType == XmlPullParser.START_TAG) {
57                 if (parser.getName().equals("id"))
58                     messageEvent.setPacketID(parser.nextText());
59                 if (parser.getName().equals(MessageEvent.COMPOSING))
60                     messageEvent.setComposing(true);
61                 if (parser.getName().equals(MessageEvent.DELIVERED))
62                     messageEvent.setDelivered(true);
63                 if (parser.getName().equals(MessageEvent.DISPLAYED))
64                     messageEvent.setDisplayed(true);
65                 if (parser.getName().equals(MessageEvent.OFFLINE))
66                     messageEvent.setOffline(true);
67             } else if (eventType == XmlPullParser.END_TAG) {
68                 if (parser.getName().equals("x")) {
69                     done = true;
70                 }
71             }
72         }
73
74         return messageEvent;
75     }
76
77 }
78
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