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f94f7590a6
allowing O(1) lookups for PacketExtensions The one EntityCapsManagerTest becomes obsolete with this change, as duplicate extension elements (RFC 6120 § 8.4) are now no longer possible after the stanza has been parsed (they still may be received on the wire, but only the last duplicate will be added).
72 lines
2.4 KiB
Java
72 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 org.jivesoftware.smack.packet.Packet;
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import org.jivesoftware.smack.packet.PacketExtension;
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import org.jivesoftware.smack.util.StringUtils;
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/**
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* Filters for packets with a particular type of packet extension.
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*
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* @author Matt Tucker
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*/
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public class PacketExtensionFilter implements PacketFilter {
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private final String elementName;
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private final String namespace;
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/**
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* Creates a new packet extension filter. Packets will pass the filter if
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* they have a packet extension that matches the specified element name
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* and namespace.
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*
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* @param elementName the XML element name of the packet extension.
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* @param namespace the XML namespace of the packet extension.
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*/
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public PacketExtensionFilter(String elementName, String namespace) {
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if (StringUtils.isNullOrEmpty(namespace)) {
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throw new IllegalArgumentException("namespace must not be null or empty");
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}
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this.elementName = elementName;
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this.namespace = namespace;
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}
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/**
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* Creates a new packet extension filter. Packets will pass the filter if they have a packet
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* extension that matches the specified namespace.
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*
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* @param namespace the XML namespace of the packet extension.
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*/
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public PacketExtensionFilter(String namespace) {
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this(null, namespace);
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}
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public PacketExtensionFilter(PacketExtension packetExtension) {
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this(packetExtension.getElementName(), packetExtension.getNamespace());
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}
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public PacketExtensionFilter(Class<? extends PacketExtension> packetExtensionClass) throws InstantiationException, IllegalAccessException {
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this(packetExtensionClass.newInstance());
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}
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public boolean accept(Packet packet) {
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return packet.hasExtension(elementName, namespace);
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}
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}
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