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