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https://github.com/vanitasvitae/Smack.git
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4698805a34
Smack still uses the term 'Packet' in some places. This is just the first step towards using correct XMPP terms in Smack.
48 lines
1.3 KiB
Java
48 lines
1.3 KiB
Java
/**
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*
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* Copyright 2003-2007 Jive Software.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*/
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package org.jivesoftware.smack.filter;
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import org.jivesoftware.smack.packet.Stanza;
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/**
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* Implements the logical NOT operation on a packet filter. In other words, packets
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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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public class NotFilter implements PacketFilter {
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private final PacketFilter filter;
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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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public NotFilter(PacketFilter filter) {
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if (filter == null) {
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throw new IllegalArgumentException("Parameter must not be null.");
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}
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this.filter = filter;
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}
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public boolean accept(Stanza packet) {
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return !filter.accept(packet);
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}
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}
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