001    /** 
002     * 
003     * Copyright 2004 Protique Ltd
004     * 
005     * Licensed under the Apache License, Version 2.0 (the "License"); 
006     * you may not use this file except in compliance with the License. 
007     * You may obtain a copy of the License at 
008     * 
009     * http://www.apache.org/licenses/LICENSE-2.0
010     * 
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS, 
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
014     * See the License for the specific language governing permissions and 
015     * limitations under the License. 
016     * 
017     **/
018    
019    package org.activemq.filter;
020    
021    import org.activemq.message.ActiveMQMessage;
022    
023    import javax.jms.JMSException;
024    import javax.jms.Message;
025    
026    
027    /**
028     * Checks that messages are not filtered by NoLocal
029     *
030     * @version $Revision: 1.1.1.1 $
031     */
032    public class NoLocalFilter implements Filter {
033    
034        private String clientId;
035    
036        /**
037         * Construct a NoLocalFilter
038         *
039         * @param newClientId
040         */
041        public NoLocalFilter(String newClientId) {
042            this.clientId = newClientId;
043        }
044    
045        /**
046         * ensure messages are filtered if they have the same clientId
047         * as the filter
048         *
049         * @param message - the message to match
050         * @return true if the message has a different clientId to the filter
051         * @throws JMSException
052         */
053        public boolean matches(Message message) throws JMSException {
054            if (message != null && message instanceof ActiveMQMessage) {
055                ActiveMQMessage activeMQMessage = (ActiveMQMessage) message;
056    
057                if (clientId.equals(activeMQMessage.getJMSClientID())) {
058                    return false;
059                }
060            }
061            return true;
062        }
063    
064        public boolean isWildcard() {
065            return false;
066        }
067    }