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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright 2003-2007 Jive Software.
*
* All rights reserved. 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 org.jivesoftware.smack.packet.Packet;
/**
* Filters for packets with a particular type of packet extension.
*
* @author Matt Tucker
*/
public class PacketExtensionFilter implements PacketFilter {
private String elementName;
private String namespace;
/**
* Creates a new packet extension filter. Packets will pass the filter if
* they have a packet extension that matches the specified element name
* and namespace.
*
* @param elementName the XML element name of the packet extension.
* @param namespace the XML namespace of the packet extension.
*/
public PacketExtensionFilter(String elementName, String namespace) {
this.elementName = elementName;
this.namespace = namespace;
}
/**
* Creates a new packet extension filter. Packets will pass the filter if they have a packet
* extension that matches the specified namespace.
*
* @param namespace the XML namespace of the packet extension.
*/
public PacketExtensionFilter(String namespace) {
this(null, namespace);
}
public boolean accept(Packet packet) {
return packet.getExtension(elementName, namespace) != null;
}
}
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