AndFilter.java

  1. /**
  2.  *
  3.  * Copyright 2003-2007 Jive Software, 2021 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 java.util.List;

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

  20. /**
  21.  * Implements the logical AND operation over two or more stanza filters.
  22.  * In other words, packets pass this filter if they pass <b>all</b> of the filters.
  23.  *
  24.  * @author Matt Tucker
  25.  */
  26. public class AndFilter extends AbstractListFilter implements StanzaFilter {

  27.     /**
  28.      * Creates an empty AND filter. Filters should be added using the
  29.      * {@link #addFilter(StanzaFilter)} method.
  30.      */
  31.     public AndFilter() {
  32.         super();
  33.     }

  34.     /**
  35.      * Creates an AND filter using the specified filters.
  36.      *
  37.      * @param filters the filters to add.
  38.      */
  39.     public AndFilter(StanzaFilter... filters) {
  40.         super(filters);
  41.     }

  42.     /**
  43.      * Creates an AND filter using the specified filters.
  44.      *
  45.      * @param filters the filters to add.
  46.      */
  47.     public AndFilter(List<StanzaFilter> filters) {
  48.         super(filters);
  49.     }

  50.     @Override
  51.     public boolean accept(Stanza packet) {
  52.         for (StanzaFilter filter : filters) {
  53.             if (!filter.accept(packet)) {
  54.                 return false;
  55.             }
  56.         }
  57.         return true;
  58.     }

  59. }