Shuyi Chen | d7955ce | 2013-05-22 14:51:55 -0700 | [diff] [blame] | 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 java.util.ArrayList; |
| 24 | |
| 25 | import org.jivesoftware.smack.packet.PacketExtension; |
| 26 | import org.jivesoftware.smack.provider.PacketExtensionProvider; |
| 27 | import org.jivesoftware.smackx.*; |
| 28 | import org.jivesoftware.smackx.packet.*; |
| 29 | import org.xmlpull.v1.XmlPullParser; |
| 30 | |
| 31 | /** |
| 32 | * |
| 33 | * The RosterExchangeProvider parses RosterExchange packets. |
| 34 | * |
| 35 | * @author Gaston Dombiak |
| 36 | */ |
| 37 | public class RosterExchangeProvider implements PacketExtensionProvider { |
| 38 | |
| 39 | /** |
| 40 | * Creates a new RosterExchangeProvider. |
| 41 | * ProviderManager requires that every PacketExtensionProvider has a public, no-argument constructor |
| 42 | */ |
| 43 | public RosterExchangeProvider() { |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * Parses a RosterExchange packet (extension sub-packet). |
| 48 | * |
| 49 | * @param parser the XML parser, positioned at the starting element of the extension. |
| 50 | * @return a PacketExtension. |
| 51 | * @throws Exception if a parsing error occurs. |
| 52 | */ |
| 53 | public PacketExtension parseExtension(XmlPullParser parser) throws Exception { |
| 54 | |
| 55 | RosterExchange rosterExchange = new RosterExchange(); |
| 56 | boolean done = false; |
| 57 | RemoteRosterEntry remoteRosterEntry = null; |
| 58 | String jid = ""; |
| 59 | String name = ""; |
| 60 | ArrayList<String> groupsName = new ArrayList<String>(); |
| 61 | while (!done) { |
| 62 | int eventType = parser.next(); |
| 63 | if (eventType == XmlPullParser.START_TAG) { |
| 64 | if (parser.getName().equals("item")) { |
| 65 | // Reset this variable since they are optional for each item |
| 66 | groupsName = new ArrayList<String>(); |
| 67 | // Initialize the variables from the parsed XML |
| 68 | jid = parser.getAttributeValue("", "jid"); |
| 69 | name = parser.getAttributeValue("", "name"); |
| 70 | } |
| 71 | if (parser.getName().equals("group")) { |
| 72 | groupsName.add(parser.nextText()); |
| 73 | } |
| 74 | } else if (eventType == XmlPullParser.END_TAG) { |
| 75 | if (parser.getName().equals("item")) { |
| 76 | // Create packet. |
| 77 | remoteRosterEntry = new RemoteRosterEntry(jid, name, (String[]) groupsName.toArray(new String[groupsName.size()])); |
| 78 | rosterExchange.addRosterEntry(remoteRosterEntry); |
| 79 | } |
| 80 | if (parser.getName().equals("x")) { |
| 81 | done = true; |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | return rosterExchange; |
| 87 | |
| 88 | } |
| 89 | |
| 90 | } |