001/** 002 * 003 * Copyright 2003-2007 Jive Software. 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.jivesoftware.smackx.muc.provider; 019 020import java.io.IOException; 021 022import org.jivesoftware.smack.provider.ExtensionElementProvider; 023import org.jivesoftware.smack.util.ParserUtils; 024 025import org.jivesoftware.smackx.muc.packet.MUCUser; 026 027import org.jxmpp.jid.EntityBareJid; 028import org.jxmpp.jid.EntityJid; 029import org.xmlpull.v1.XmlPullParser; 030import org.xmlpull.v1.XmlPullParserException; 031 032/** 033 * The MUCUserProvider parses packets with extended presence information about 034 * roles and affiliations. 035 * 036 * @author Gaston Dombiak 037 */ 038public class MUCUserProvider extends ExtensionElementProvider<MUCUser> { 039 040 /** 041 * Parses a MUCUser stanza (extension sub-packet). 042 * 043 * @param parser the XML parser, positioned at the starting element of the extension. 044 * @return a PacketExtension. 045 * @throws IOException 046 * @throws XmlPullParserException 047 */ 048 @Override 049 public MUCUser parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException, IOException { 050 MUCUser mucUser = new MUCUser(); 051 outerloop: while (true) { 052 switch (parser.next()) { 053 case XmlPullParser.START_TAG: 054 switch (parser.getName()) { 055 case "invite": 056 mucUser.setInvite(parseInvite(parser)); 057 break; 058 case "item": 059 mucUser.setItem(MUCParserUtils.parseItem(parser)); 060 break; 061 case "password": 062 mucUser.setPassword(parser.nextText()); 063 break; 064 case "status": 065 String statusString = parser.getAttributeValue("", "code"); 066 mucUser.addStatusCode(MUCUser.Status.create(statusString)); 067 break; 068 case "decline": 069 mucUser.setDecline(parseDecline(parser)); 070 break; 071 case "destroy": 072 mucUser.setDestroy(MUCParserUtils.parseDestroy(parser)); 073 break; 074 } 075 break; 076 case XmlPullParser.END_TAG: 077 if (parser.getDepth() == initialDepth) { 078 break outerloop; 079 } 080 break; 081 } 082 } 083 084 return mucUser; 085 } 086 087 private static MUCUser.Invite parseInvite(XmlPullParser parser) throws XmlPullParserException, IOException { 088 String reason = null; 089 EntityBareJid to = ParserUtils.getBareJidAttribute(parser, "to"); 090 EntityJid from = ParserUtils.getEntityJidAttribute(parser, "from"); 091 092 outerloop: while (true) { 093 int eventType = parser.next(); 094 if (eventType == XmlPullParser.START_TAG) { 095 if (parser.getName().equals("reason")) { 096 reason = parser.nextText(); 097 } 098 } 099 else if (eventType == XmlPullParser.END_TAG) { 100 if (parser.getName().equals("invite")) { 101 break outerloop; 102 } 103 } 104 } 105 return new MUCUser.Invite(reason, from, to); 106 } 107 108 private static MUCUser.Decline parseDecline(XmlPullParser parser) throws XmlPullParserException, IOException { 109 String reason = null; 110 EntityBareJid to = ParserUtils.getBareJidAttribute(parser, "to"); 111 EntityBareJid from = ParserUtils.getBareJidAttribute(parser, "from"); 112 113 outerloop: while (true) { 114 int eventType = parser.next(); 115 if (eventType == XmlPullParser.START_TAG) { 116 if (parser.getName().equals("reason")) { 117 reason = parser.nextText(); 118 } 119 } 120 else if (eventType == XmlPullParser.END_TAG) { 121 if (parser.getName().equals("decline")) { 122 break outerloop; 123 } 124 } 125 } 126 return new MUCUser.Decline(reason, from, to); 127 } 128}