001 /** 002 * 003 * Licensed to the Apache Software Foundation (ASF) under one or more 004 * contributor license agreements. See the NOTICE file distributed with 005 * this work for additional information regarding copyright ownership. 006 * The ASF licenses this file to You under the Apache License, Version 2.0 007 * (the "License"); you may not use this file except in compliance with 008 * the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.camel.processor.loadbalancer; 019 020 import org.apache.camel.Exchange; 021 import org.apache.camel.Processor; 022 023 import java.util.List; 024 025 /** 026 * Implements the random load balancing policy 027 * 028 * @version $Revision: 1.1 $ 029 */ 030 public class RandomLoadBalancer extends QueueLoadBalancer { 031 032 protected synchronized Processor chooseProcessor(List<Processor> processors, Exchange exchange) { 033 int size = processors.size(); 034 while (true) { 035 int index = (int) Math.round(Math.random() * size); 036 if (index < size) { 037 return processors.get(index); 038 } 039 } 040 } 041 }