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;
021import java.util.Map;
022
023import org.jivesoftware.smack.packet.IQ;
024import org.jivesoftware.smack.packet.IqData;
025import org.jivesoftware.smack.packet.XmlEnvironment;
026import org.jivesoftware.smack.provider.IqProvider;
027import org.jivesoftware.smack.xml.XmlPullParser;
028import org.jivesoftware.smack.xml.XmlPullParserException;
029
030import org.jivesoftware.smackx.muclight.element.MUCLightBlockingIQ;
031
032import org.jxmpp.jid.Jid;
033import org.jxmpp.jid.impl.JidCreate;
034import org.jxmpp.stringprep.XmppStringprepException;
035
036/**
037 * MUC Light blocking IQ provider class.
038 *
039 * @author Fernando Ramirez
040 *
041 */
042public class MUCLightBlockingIQProvider extends IqProvider<MUCLightBlockingIQ> {
043
044    @Override
045    public MUCLightBlockingIQ parse(XmlPullParser parser, int initialDepth, IqData iqData, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException {
046        Map<Jid, Boolean> rooms = null;
047        Map<Jid, Boolean> users = null;
048
049        outerloop: while (true) {
050            XmlPullParser.Event eventType = parser.next();
051
052            if (eventType == XmlPullParser.Event.START_ELEMENT) {
053
054                if (parser.getName().equals("room")) {
055                    rooms = parseBlocking(parser, rooms);
056                }
057
058                if (parser.getName().equals("user")) {
059                    users = parseBlocking(parser, users);
060                }
061
062            } else if (eventType == XmlPullParser.Event.END_ELEMENT) {
063                if (parser.getDepth() == initialDepth) {
064                    break outerloop;
065                }
066            }
067        }
068
069        MUCLightBlockingIQ mucLightBlockingIQ = new MUCLightBlockingIQ(rooms, users);
070        mucLightBlockingIQ.setType(IQ.Type.result);
071        return mucLightBlockingIQ;
072    }
073
074    private static Map<Jid, Boolean> parseBlocking(XmlPullParser parser, Map<Jid, Boolean> map)
075            throws XmppStringprepException, XmlPullParserException, IOException {
076        if (map == null) {
077            map = new HashMap<>();
078        }
079        String action = parser.getAttributeValue("", "action");
080
081        if (action.equals("deny")) {
082            map.put(JidCreate.from(parser.nextText()), false);
083        } else if (action.equals("allow")) {
084            map.put(JidCreate.from(parser.nextText()), true);
085        }
086        return map;
087    }
088
089}