| /** |
| * 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.model.loadbalancer; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.xml.bind.annotation.XmlAccessType; |
| import javax.xml.bind.annotation.XmlAccessorType; |
| import javax.xml.bind.annotation.XmlAttribute; |
| import javax.xml.bind.annotation.XmlRootElement; |
| |
| import org.apache.camel.model.LoadBalancerDefinition; |
| import org.apache.camel.processor.loadbalancer.LoadBalancer; |
| import org.apache.camel.processor.loadbalancer.WeightedLoadBalancer; |
| import org.apache.camel.processor.loadbalancer.WeightedRandomLoadBalancer; |
| import org.apache.camel.processor.loadbalancer.WeightedRoundRobinLoadBalancer; |
| import org.apache.camel.spi.RouteContext; |
| import org.apache.camel.util.ObjectHelper; |
| |
| /** |
| * Represents an XML <weighted/> element |
| */ |
| @XmlRootElement(name = "weighted") |
| @XmlAccessorType(XmlAccessType.FIELD) |
| public class WeightedLoadBalancerDefinition extends LoadBalancerDefinition { |
| @XmlAttribute |
| private Boolean roundRobin; |
| @XmlAttribute(required = true) |
| private String distributionRatio; |
| @XmlAttribute |
| private String distributionRatioDelimiter; |
| |
| public WeightedLoadBalancerDefinition() { |
| } |
| |
| @Override |
| protected LoadBalancer createLoadBalancer(RouteContext routeContext) { |
| WeightedLoadBalancer loadBalancer; |
| List<Integer> distributionRatioList = new ArrayList<Integer>(); |
| |
| try { |
| if (distributionRatioDelimiter == null) { |
| distributionRatioDelimiter = ","; |
| } |
| |
| String[] ratios = distributionRatio.split(distributionRatioDelimiter); |
| for (String ratio : ratios) { |
| distributionRatioList.add(new Integer(ratio.trim())); |
| } |
| |
| if (!isRoundRobin()) { |
| loadBalancer = new WeightedRandomLoadBalancer(distributionRatioList); |
| } else { |
| loadBalancer = new WeightedRoundRobinLoadBalancer(distributionRatioList); |
| } |
| } catch (Exception e) { |
| throw ObjectHelper.wrapRuntimeCamelException(e); |
| } |
| |
| return loadBalancer; |
| } |
| |
| public Boolean getRoundRobin() { |
| return roundRobin; |
| } |
| |
| public void setRoundRobin(Boolean roundRobin) { |
| this.roundRobin = roundRobin; |
| } |
| |
| public boolean isRoundRobin() { |
| return roundRobin != null && roundRobin; |
| } |
| |
| public String getDistributionRatio() { |
| return distributionRatio; |
| } |
| |
| public void setDistributionRatio(String distributionRatio) { |
| this.distributionRatio = distributionRatio; |
| } |
| |
| public String getDistributionRatioDelimiter() { |
| return distributionRatioDelimiter; |
| } |
| |
| public void setDistributionRatioDelimiter(String distributionRatioDelimiter) { |
| this.distributionRatioDelimiter = distributionRatioDelimiter; |
| } |
| |
| @Override |
| public String toString() { |
| if (!isRoundRobin()) { |
| return "WeightedRandomLoadBalancer[" + distributionRatio + "]"; |
| } else { |
| return "WeightedRoundRobinLoadBalancer[" + distributionRatio + "]"; |
| } |
| } |
| } |