1/** 2 * $RCSfile$ 3 * $Revision$ 4 * $Date$ 5 * 6 * Copyright 2003-2007 Jive Software. 7 * 8 * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21package org.jivesoftware.smack.filter; 22 23import org.jivesoftware.smack.packet.Packet; 24import org.jivesoftware.smack.packet.Message; 25 26/** 27 * Filters for message packets with a particular thread value. 28 * 29 * @author Matt Tucker 30 */ 31public class ThreadFilter implements PacketFilter { 32 33 private String thread; 34 35 /** 36 * Creates a new thread filter using the specified thread value. 37 * 38 * @param thread the thread value to filter for. 39 */ 40 public ThreadFilter(String thread) { 41 if (thread == null) { 42 throw new IllegalArgumentException("Thread cannot be null."); 43 } 44 this.thread = thread; 45 } 46 47 public boolean accept(Packet packet) { 48 return packet instanceof Message && thread.equals(((Message) packet).getThread()); 49 } 50} 51