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 java.util.List;
020 import java.util.concurrent.CopyOnWriteArrayList;
021
022 import org.apache.camel.Processor;
023 import org.apache.camel.impl.ServiceSupport;
024 import org.apache.camel.util.ServiceHelper;
025
026 /**
027 * A default base class for a {@link LoadBalancer} implementation
028 *
029 * @version $Revision: 630568 $
030 */
031 public abstract class LoadBalancerSupport extends ServiceSupport implements LoadBalancer {
032 private List<Processor> processors = new CopyOnWriteArrayList<Processor>();
033
034 public void addProcessor(Processor processor) {
035 processors.add(processor);
036 }
037
038 public void removeProcessor(Processor processor) {
039 processors.remove(processor);
040 }
041
042 public List<Processor> getProcessors() {
043 return processors;
044 }
045
046 protected void doStart() throws Exception {
047 ServiceHelper.startServices(processors);
048 }
049
050 protected void doStop() throws Exception {
051 ServiceHelper.stopServices(processors);
052 }
053 }