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.camel.processor.loadbalancer;
018    
019    import org.apache.camel.Endpoint;
020    import org.apache.camel.Exchange;
021    import org.apache.camel.Processor;
022    import org.apache.camel.impl.DefaultConsumer;
023    
024    /**
025     * Represents a consumer which on starting registers itself with a {@link LoadBalancer} and on closing unregisters
026     * itself with a load balancer
027     *
028     * @version $Revision: 36321 $
029     */
030    public class LoadBalancerConsumer extends DefaultConsumer<Exchange> {
031        private final LoadBalancer loadBalancer;
032    
033        public LoadBalancerConsumer(Endpoint endpoint, Processor processor, LoadBalancer loadBalancer) {
034            super(endpoint, processor);
035            this.loadBalancer = loadBalancer;
036        }
037    
038        @Override
039        protected void doStart() throws Exception {
040            loadBalancer.addProcessor(getProcessor());
041        }
042    
043        @Override
044        protected void doStop() throws Exception {
045            loadBalancer.removeProcessor(getProcessor());
046        }
047    }