001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  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    package org.apache.activemq.broker;
018    
019    import org.apache.activemq.command.Message;
020    
021    /**
022     * This broker filter will append the producer's user ID into the JMSXUserID header
023     * to allow folks to know reliably who the user was who produced a message.
024     * Note that you cannot trust the client, especially if working over the internet
025     * as they can spoof headers to be anything they like.
026     * 
027     * @version $Revision: 1.8 $
028     */
029    public class UserIDBroker extends BrokerFilter {
030        
031        public UserIDBroker(Broker next) {
032            super(next);
033        }
034    
035        public void send(ProducerBrokerExchange producerExchange, Message messageSend) throws Exception {
036            final ConnectionContext context = producerExchange.getConnectionContext();
037            String userID = context.getUserName();
038            messageSend.setUserID(userID);
039            super.send(producerExchange, messageSend);
040        }
041    }