85 lines
2.4 KiB
Java
85 lines
2.4 KiB
Java
/**
|
|
*
|
|
* Copyright 2003-2007 Jive Software.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package org.jivesoftware.smack.filter;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.Arrays;
|
|
import java.util.List;
|
|
|
|
import org.jivesoftware.smack.packet.Packet;
|
|
import org.jivesoftware.smack.util.Objects;
|
|
|
|
/**
|
|
* Implements the logical OR operation over two or more packet filters. In
|
|
* other words, packets pass this filter if they pass <b>any</b> of the filters.
|
|
*
|
|
* @author Matt Tucker
|
|
*/
|
|
public class OrFilter implements PacketFilter {
|
|
|
|
/**
|
|
* The list of filters.
|
|
*/
|
|
private final List<PacketFilter> filters;
|
|
|
|
/**
|
|
* Creates an empty OR filter. Filters should be added using the
|
|
* {@link #addFilter(PacketFilter)} method.
|
|
*/
|
|
public OrFilter() {
|
|
filters = new ArrayList<PacketFilter>();
|
|
}
|
|
|
|
/**
|
|
* Creates an OR filter using the specified filters.
|
|
*
|
|
* @param filters the filters to add.
|
|
*/
|
|
public OrFilter(PacketFilter... filters) {
|
|
Objects.requireNonNull(filters, "Parameter must not be null.");
|
|
for(PacketFilter filter : filters) {
|
|
Objects.requireNonNull(filter, "Parameter must not be null.");
|
|
}
|
|
this.filters = new ArrayList<PacketFilter>(Arrays.asList(filters));
|
|
}
|
|
|
|
/**
|
|
* Adds a filter to the filter list for the OR operation. A packet
|
|
* will pass the filter if any filter in the list accepts it.
|
|
*
|
|
* @param filter a filter to add to the filter list.
|
|
*/
|
|
public void addFilter(PacketFilter filter) {
|
|
Objects.requireNonNull(filter, "Parameter must not be null.");
|
|
filters.add(filter);
|
|
}
|
|
|
|
public boolean accept(Packet packet) {
|
|
for (PacketFilter filter : filters) {
|
|
if (filter.accept(packet)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public String toString() {
|
|
return filters.toString();
|
|
}
|
|
}
|