001/**
002 *
003 * Copyright © 2016 Florian Schmaus
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.smack.filter;
018
019import org.jivesoftware.smack.packet.Stanza;
020import org.jxmpp.jid.Jid;
021
022public final class EmptyToMatcher implements StanzaFilter {
023
024    public static final EmptyToMatcher INSTANCE = new EmptyToMatcher();
025
026    private EmptyToMatcher() {
027    }
028
029    @Override
030    public boolean accept(Stanza packet) {
031        Jid packetTo = packet.getTo();
032        if (packetTo == null) {
033            return true;
034        }
035        return false;
036    }
037
038    @Override
039    public String toString() {
040        return getClass().getSimpleName();
041    }
042}