| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.processor.loadbalancer; |
| |
| import java.util.List; |
| import java.util.Random; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| |
| public class WeightedRandomLoadBalancer extends WeightedLoadBalancer { |
| private int randomCounter; |
| |
| public WeightedRandomLoadBalancer(List<Integer> distributionRatioList) { |
| super(distributionRatioList); |
| } |
| |
| @Override |
| protected Processor chooseProcessor(List<Processor> processors, Exchange exchange) { |
| boolean found = false; |
| while (!found) { |
| if (getRuntimeRatios().isEmpty()) { |
| loadRuntimeRatios(getDistributionRatioList()); |
| } |
| |
| randomCounter = 0; |
| if (getRuntimeRatios().size() > 0) { |
| randomCounter = new Random().nextInt(getRuntimeRatios().size()); |
| } |
| |
| if (getRuntimeRatios().get(randomCounter).getRuntimeWeight() > 0) { |
| getRuntimeRatios().get(randomCounter).setRuntimeWeight((getRuntimeRatios().get(randomCounter).getRuntimeWeight()) - 1); |
| found = true; |
| } else { |
| getRuntimeRatios().remove(randomCounter); |
| } |
| } |
| |
| return processors.get(getRuntimeRatios().get(randomCounter).getProcessorPosition()); |
| } |
| |
| } |