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.management.mbean;
018
019import org.apache.camel.CamelContext;
020import org.apache.camel.api.management.ManagedResource;
021import org.apache.camel.api.management.mbean.ManagedWeightedBalancerMBean;
022import org.apache.camel.model.LoadBalanceDefinition;
023import org.apache.camel.model.ProcessorDefinition;
024import org.apache.camel.model.loadbalancer.WeightedLoadBalancerDefinition;
025import org.apache.camel.processor.loadbalancer.WeightedLoadBalancer;
026
027/**
028 * @version 
029 */
030@ManagedResource(description = "Managed Weighted LoadBalancer")
031public class ManagedWeightedLoadBalancer extends ManagedProcessor implements ManagedWeightedBalancerMBean {
032    private final WeightedLoadBalancer processor;
033
034    public ManagedWeightedLoadBalancer(CamelContext context, WeightedLoadBalancer processor, LoadBalanceDefinition definition) {
035        super(context, processor, definition);
036        this.processor = processor;
037    }
038
039    @Override
040    public Integer getSize() {
041        return processor.getProcessors().size();
042    }
043
044    @Override
045    public LoadBalanceDefinition getDefinition() {
046        return (LoadBalanceDefinition) super.getDefinition();
047    }
048
049    @Override
050    public Boolean isRoundRobin() {
051        WeightedLoadBalancerDefinition weighted = (WeightedLoadBalancerDefinition) getDefinition().getLoadBalancerType();
052        if (weighted != null) {
053            return weighted.getRoundRobin();
054        } else {
055            return null;
056        }
057    }
058
059    @Override
060    public String getDistributionRatio() {
061        WeightedLoadBalancerDefinition weighted = (WeightedLoadBalancerDefinition) getDefinition().getLoadBalancerType();
062        if (weighted != null) {
063            return weighted.getDistributionRatio();
064        } else {
065            return null;
066        }
067    }
068
069    @Override
070    public String getDistributionRatioDelimiter() {
071        WeightedLoadBalancerDefinition weighted = (WeightedLoadBalancerDefinition) getDefinition().getLoadBalancerType();
072        if (weighted != null) {
073            return weighted.getDistributionRatioDelimiter();
074        } else {
075            return null;
076        }
077    }
078
079    @Override
080    public String getLastChosenProcessorId() {
081        int idx = processor.getLastChosenProcessorIndex();
082        if (idx != -1) {
083            LoadBalanceDefinition def = getDefinition();
084            ProcessorDefinition<?> output = def.getOutputs().get(idx);
085            if (output != null) {
086                return output.getId();
087            }
088        }
089        return null;
090    }
091
092}