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.blocking.provider;
018
019import java.io.IOException;
020import java.util.ArrayList;
021import java.util.List;
022
023import org.jivesoftware.smack.packet.IQ.Type;
024import org.jivesoftware.smack.packet.XmlEnvironment;
025import org.jivesoftware.smack.provider.IQProvider;
026import org.jivesoftware.smack.util.ParserUtils;
027import org.jivesoftware.smack.xml.XmlPullParser;
028import org.jivesoftware.smack.xml.XmlPullParserException;
029
030import org.jivesoftware.smackx.blocking.element.BlockListIQ;
031
032import org.jxmpp.jid.Jid;
033
034/**
035 * Block list IQ provider class.
036 *
037 * @author Fernando Ramirez
038 * @see <a href="http://xmpp.org/extensions/xep-0191.html">XEP-0191: Blocking
039 *      Command</a>
040 */
041public class BlockListIQProvider extends IQProvider<BlockListIQ> {
042
043    @Override
044    public BlockListIQ parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException {
045        List<Jid> jids = null;
046
047        outerloop: while (true) {
048            XmlPullParser.Event eventType = parser.next();
049            switch (eventType) {
050            case START_ELEMENT:
051                if (parser.getName().equals("item")) {
052                    if (jids == null) {
053                        jids = new ArrayList<>();
054                    }
055                    Jid jid = ParserUtils.getJidAttribute(parser);
056                    jids.add(jid);
057                }
058                break;
059
060            case END_ELEMENT:
061                if (parser.getDepth() == initialDepth) {
062                    break outerloop;
063                }
064                break;
065
066            default:
067                // Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
068                break;
069            }
070        }
071
072        BlockListIQ blockListIQ = new BlockListIQ(jids);
073        blockListIQ.setType(Type.result);
074        return blockListIQ;
075    }
076
077}