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 018package org.apache.camel.impl.remote; 019 020import java.util.List; 021 022import org.apache.camel.spi.ServiceCallLoadBalancer; 023import org.apache.camel.spi.ServiceCallServer; 024 025public class RoundRobinServiceCallLoadBalancer<S extends ServiceCallServer> implements ServiceCallLoadBalancer<S> { 026 private int counter = -1; 027 028 @SuppressWarnings("uncheked") 029 @Override 030 public S chooseServer(List<S> servers) { 031 int size = servers.size(); 032 if (++counter >= size || size == 1) { 033 counter = 0; 034 } 035 return servers.get(counter); 036 } 037 038 @Override 039 public String toString() { 040 return "RoundRobinServiceCallLoadBalancer"; 041 } 042}