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      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 
     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 {
     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