2003-05-11 19:43:52 +02:00
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/**
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*
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2007-02-12 01:59:05 +01:00
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* Copyright 2003-2007 Jive Software.
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2003-05-11 19:43:52 +02:00
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*
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2014-02-17 18:57:38 +01:00
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* Licensed under the Apache License, Version 2.0 (the "License");
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2004-11-03 00:53:30 +01:00
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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2003-05-11 19:43:52 +02:00
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*
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2004-11-03 00:53:30 +01:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2003-05-11 19:43:52 +02:00
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*
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2004-11-03 00:53:30 +01:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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2003-05-11 19:43:52 +02:00
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*/
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package org.jivesoftware.smack.filter;
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2015-02-05 11:17:27 +01:00
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import org.jivesoftware.smack.packet.Stanza;
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2015-02-19 12:11:19 +01:00
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import org.jivesoftware.smack.util.Objects;
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2003-05-11 19:43:52 +02:00
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/**
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2018-03-31 14:17:30 +02:00
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* Implements the logical NOT operation on a stanza filter. In other words, packets
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2003-05-11 19:43:52 +02:00
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* pass this filter if they do not pass the supplied filter.
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*
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* @author Matt Tucker
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*/
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2015-02-26 18:41:17 +01:00
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public class NotFilter implements StanzaFilter {
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2003-05-11 19:43:52 +02:00
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2015-02-26 18:41:17 +01:00
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private final StanzaFilter filter;
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2003-05-11 19:43:52 +02:00
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/**
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* Creates a NOT filter using the specified filter.
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*
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* @param filter the filter.
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*/
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2015-02-26 18:41:17 +01:00
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public NotFilter(StanzaFilter filter) {
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2015-02-19 12:11:19 +01:00
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this.filter = Objects.requireNonNull(filter, "Parameter must not be null.");
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2003-05-11 19:43:52 +02:00
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}
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2017-02-11 16:16:41 +01:00
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@Override
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2015-02-05 11:17:27 +01:00
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public boolean accept(Stanza packet) {
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2003-05-11 19:43:52 +02:00
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return !filter.accept(packet);
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}
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}
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