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 */
017package org.apache.camel.impl.remote;
018
019import java.util.List;
020import java.util.Random;
021
022import org.apache.camel.spi.ServiceCallLoadBalancer;
023import org.apache.camel.spi.ServiceCallServer;
024
025public class RandomServiceCallLoadBalancer implements ServiceCallLoadBalancer<ServiceCallServer> {
026    private final Random random;
027
028    public RandomServiceCallLoadBalancer() {
029        this.random = new Random();
030    }
031
032    @SuppressWarnings("uncheked")
033    @Override
034    public ServiceCallServer chooseServer(List<ServiceCallServer> servers) {
035        int size = servers.size();
036        int index = (size > 1) ? random.nextInt(size) : 0;
037
038        return servers.get(index);
039    }
040
041    @Override
042    public String toString() {
043        return "RandomServiceCallLoadBalancer";
044    }
045}