1/**
2 * $RCSfile$
3 * $Revision$
4 * $Date$
5 *
6 * Copyright 2003-2007 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
21package org.jivesoftware.smackx.provider;
22
23import org.jivesoftware.smack.packet.PacketExtension;
24import org.jivesoftware.smack.provider.PacketExtensionProvider;
25import org.jivesoftware.smackx.packet.MessageEvent;
26import org.xmlpull.v1.XmlPullParser;
27
28/**
29 *
30 * The MessageEventProvider parses Message Event packets.
31*
32 * @author Gaston Dombiak
33 */
34public 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 {
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