001/**
002 *
003 * Copyright © 2003-2007 Jive Software, 2014-2015 Florian Schmaus
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 */
017package org.jivesoftware.smack.roster.provider;
018
019import java.io.IOException;
020
021import org.jivesoftware.smack.SmackException;
022import org.jivesoftware.smack.provider.IQProvider;
023import org.jivesoftware.smack.roster.packet.RosterPacket;
024import org.xmlpull.v1.XmlPullParser;
025import org.xmlpull.v1.XmlPullParserException;
026
027public class RosterPacketProvider extends IQProvider<RosterPacket> {
028
029    public static final RosterPacketProvider INSTANCE = new RosterPacketProvider();
030
031    @Override
032    public RosterPacket parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException, IOException,
033                    SmackException {
034        RosterPacket roster = new RosterPacket();
035        RosterPacket.Item item = null;
036
037        String version = parser.getAttributeValue("", "ver");
038        roster.setVersion(version);
039
040        outerloop: while (true) {
041            int eventType = parser.next();
042            switch(eventType) {
043            case XmlPullParser.START_TAG:
044                String startTag = parser.getName();
045                switch (startTag) {
046                case "item":
047                    String jid = parser.getAttributeValue("", "jid");
048                    String name = parser.getAttributeValue("", "name");
049                    // Create packet.
050                    item = new RosterPacket.Item(jid, name);
051                    // Set status.
052                    String ask = parser.getAttributeValue("", "ask");
053                    RosterPacket.ItemStatus status = RosterPacket.ItemStatus.fromString(ask);
054                    item.setItemStatus(status);
055                    // Set type.
056                    String subscription = parser.getAttributeValue("", "subscription");
057                    RosterPacket.ItemType type = RosterPacket.ItemType.valueOf(subscription != null ? subscription : "none");
058                    item.setItemType(type);
059                    break;
060                case "group":
061                    // TODO item!= null
062                    final String groupName = parser.nextText();
063                    if (groupName != null && groupName.trim().length() > 0) {
064                        item.addGroupName(groupName);
065                    }
066                    break;
067                }
068                break;
069            case XmlPullParser.END_TAG:
070                String endTag = parser.getName();
071                switch(endTag) {
072                case "item":
073                    roster.addRosterItem(item);
074                    break;
075                case "query":
076                    break outerloop;
077                }
078            }
079        }
080        return roster;
081    }
082
083}