001/**
002 *
003 * Copyright © 2016 Florian Schmaus and 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.mam.filter;
018
019import org.jivesoftware.smack.filter.FlexibleStanzaTypeFilter;
020import org.jivesoftware.smack.packet.Message;
021
022import org.jivesoftware.smackx.mam.element.MamElements.MamResultExtension;
023import org.jivesoftware.smackx.mam.element.MamQueryIQ;
024
025/**
026 * MAM result filter class.
027 *
028 * @see <a href="http://xmpp.org/extensions/xep-0313.html">XEP-0313: Message
029 *      Archive Management</a>
030 * @author Fernando Ramirez and Florian Schmaus
031 *
032 */
033public class MamResultFilter extends FlexibleStanzaTypeFilter<Message> {
034
035    private final String queryId;
036
037    public MamResultFilter(MamQueryIQ mamQueryIQ) {
038        super(Message.class);
039        this.queryId = mamQueryIQ.getQueryId();
040    }
041
042    @Override
043    protected boolean acceptSpecific(Message message) {
044        MamResultExtension mamResultExtension = MamResultExtension.from(message);
045
046        if (mamResultExtension == null) {
047            return false;
048        }
049
050        String resultQueryId = mamResultExtension.getQueryId();
051        return (queryId == null && resultQueryId == null) || (queryId != null && queryId.equals(resultQueryId));
052    }
053
054}