001/*
002 *
003 * Copyright 2016 Fernando Ramirez
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.smackx.muclight.provider;
018
019import java.io.IOException;
020import java.util.HashMap;
021
022import org.jivesoftware.smack.packet.XmlEnvironment;
023import org.jivesoftware.smack.provider.ExtensionElementProvider;
024import org.jivesoftware.smack.xml.XmlPullParser;
025import org.jivesoftware.smack.xml.XmlPullParserException;
026
027import org.jivesoftware.smackx.muclight.element.MUCLightElements.ConfigurationsChangeExtension;
028
029import org.jxmpp.JxmppContext;
030
031/**
032 * MUC Light configurations change provider class.
033 *
034 * @author Fernando Ramirez
035 *
036 */
037public class MUCLightConfigurationsChangeProvider extends ExtensionElementProvider<ConfigurationsChangeExtension> {
038
039    @Override
040    public ConfigurationsChangeExtension parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment, JxmppContext jxmppContext) throws XmlPullParserException, IOException {
041        String prevVersion = null;
042        String version = null;
043        String roomName = null;
044        String subject = null;
045        HashMap<String, String> customConfigs = null;
046
047        outerloop: while (true) {
048            XmlPullParser.Event eventType = parser.next();
049
050            if (eventType == XmlPullParser.Event.START_ELEMENT) {
051
052                if (parser.getName().equals("prev-version")) {
053                    prevVersion = parser.nextText();
054                } else if (parser.getName().equals("version")) {
055                    version = parser.nextText();
056                } else if (parser.getName().equals("roomname")) {
057                    roomName = parser.nextText();
058                } else if (parser.getName().equals("subject")) {
059                    subject = parser.nextText();
060                } else {
061                    if (customConfigs == null) {
062                        customConfigs = new HashMap<>();
063                    }
064                    customConfigs.put(parser.getName(), parser.nextText());
065                }
066
067            } else if (eventType == XmlPullParser.Event.END_ELEMENT) {
068                if (parser.getDepth() == initialDepth) {
069                    break outerloop;
070                }
071            }
072        }
073
074        return new ConfigurationsChangeExtension(prevVersion, version, roomName, subject, customConfigs);
075    }
076
077}