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