1 /** 2 * $RCSfile$ 3 * $Revision: 2407 $ 4 * $Date: 2004-11-02 15:37:00 -0800 (Tue, 02 Nov 2004) $ 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.packet; 22 23 import org.jivesoftware.smackx.ChatState; 24 import org.jivesoftware.smack.packet.PacketExtension; 25 import org.jivesoftware.smack.provider.PacketExtensionProvider; 26 import org.xmlpull.v1.XmlPullParser; 27 28 /** 29 * Represents a chat state which is an extension to message packets which is used to indicate 30 * the current status of a chat participant. 31 * 32 * @author Alexander Wenckus 33 * @see org.jivesoftware.smackx.ChatState 34 */ 35 public class ChatStateExtension implements PacketExtension { 36 37 private ChatState state; 38 39 /** 40 * Default constructor. The argument provided is the state that the extension will represent. 41 * 42 * @param state the state that the extension represents. 43 */ ChatStateExtension(ChatState state)44 public ChatStateExtension(ChatState state) { 45 this.state = state; 46 } 47 getElementName()48 public String getElementName() { 49 return state.name(); 50 } 51 getNamespace()52 public String getNamespace() { 53 return "http://jabber.org/protocol/chatstates"; 54 } 55 toXML()56 public String toXML() { 57 return "<" + getElementName() + " xmlns=\"" + getNamespace() + "\" />"; 58 } 59 60 public static class Provider implements PacketExtensionProvider { 61 parseExtension(XmlPullParser parser)62 public PacketExtension parseExtension(XmlPullParser parser) throws Exception { 63 ChatState state; 64 try { 65 state = ChatState.valueOf(parser.getName()); 66 } 67 catch (Exception ex) { 68 state = ChatState.active; 69 } 70 return new ChatStateExtension(state); 71 } 72 } 73 } 74