EmptyToMatcher.java

  1. /**
  2.  *
  3.  * Copyright © 2016 Florian Schmaus
  4.  *
  5.  * Licensed under the Apache License, Version 2.0 (the "License");
  6.  * you may not use this file except in compliance with the License.
  7.  * You may obtain a copy of the License at
  8.  *
  9.  *     http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.jivesoftware.smack.filter;

  18. import org.jivesoftware.smack.packet.Stanza;

  19. import org.jxmpp.jid.Jid;

  20. public final class EmptyToMatcher implements StanzaFilter {

  21.     public static final EmptyToMatcher INSTANCE = new EmptyToMatcher();

  22.     private EmptyToMatcher() {
  23.     }

  24.     @Override
  25.     public boolean accept(Stanza packet) {
  26.         Jid packetTo = packet.getTo();
  27.         return packetTo == null;
  28.     }

  29.     @Override
  30.     public String toString() {
  31.         return getClass().getSimpleName();
  32.     }
  33. }