mirror of
https://codeberg.org/Mercury-IM/Smack
synced 2024-06-18 09:34:53 +02:00
4698805a34
Smack still uses the term 'Packet' in some places. This is just the first step towards using correct XMPP terms in Smack.
85 lines
2.4 KiB
Java
85 lines
2.4 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 java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import org.jivesoftware.smack.packet.Stanza;
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import org.jivesoftware.smack.util.Objects;
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/**
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* Implements the logical AND operation over two or more packet filters.
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* In other words, packets pass this filter if they pass <b>all</b> of the filters.
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*
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* @author Matt Tucker
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*/
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public class AndFilter implements PacketFilter {
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/**
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* The list of filters.
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*/
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private final List<PacketFilter> filters;
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/**
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* Creates an empty AND filter. Filters should be added using the
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* {@link #addFilter(PacketFilter)} method.
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*/
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public AndFilter() {
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filters = new ArrayList<PacketFilter>();
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}
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/**
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* Creates an AND filter using the specified filters.
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*
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* @param filters the filters to add.
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*/
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public AndFilter(PacketFilter... filters) {
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Objects.requireNonNull(filters, "Parameter must not be null.");
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for(PacketFilter filter : filters) {
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Objects.requireNonNull(filter, "Parameter must not be null.");
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}
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this.filters = new ArrayList<PacketFilter>(Arrays.asList(filters));
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}
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/**
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* Adds a filter to the filter list for the AND operation. A packet
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* will pass the filter if all of the filters in the list accept it.
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*
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* @param filter a filter to add to the filter list.
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*/
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public void addFilter(PacketFilter filter) {
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Objects.requireNonNull(filter, "Parameter must not be null.");
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filters.add(filter);
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}
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public boolean accept(Stanza packet) {
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for (PacketFilter filter : filters) {
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if (!filter.accept(packet)) {
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return false;
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}
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}
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return true;
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}
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public String toString() {
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return filters.toString();
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}
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}
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