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; 020 021import org.jxmpp.jid.Jid; 022 023public final class EmptyToMatcher implements StanzaFilter { 024 025 public static final EmptyToMatcher INSTANCE = new EmptyToMatcher(); 026 027 private EmptyToMatcher() { 028 } 029 030 @Override 031 public boolean accept(Stanza packet) { 032 Jid packetTo = packet.getTo(); 033 if (packetTo == null) { 034 return true; 035 } 036 return false; 037 } 038 039 @Override 040 public String toString() { 041 return getClass().getSimpleName(); 042 } 043}