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.ManagedRoundRobinLoadBalancerMBean;
022import org.apache.camel.model.LoadBalanceDefinition;
023import org.apache.camel.model.ProcessorDefinition;
024import org.apache.camel.processor.loadbalancer.RoundRobinLoadBalancer;
025
026@ManagedResource(description = "Managed RoundRobin LoadBalancer")
027public class ManagedRoundRobinLoadBalancer extends ManagedProcessor implements ManagedRoundRobinLoadBalancerMBean {
028    private final RoundRobinLoadBalancer processor;
029
030    public ManagedRoundRobinLoadBalancer(CamelContext context, RoundRobinLoadBalancer processor, LoadBalanceDefinition definition) {
031        super(context, processor, definition);
032        this.processor = processor;
033    }
034
035    @Override
036    public LoadBalanceDefinition getDefinition() {
037        return (LoadBalanceDefinition) super.getDefinition();
038    }
039
040    @Override
041    public Integer getSize() {
042        return processor.getProcessors().size();
043    }
044
045    @Override
046    public String getLastChosenProcessorId() {
047        int idx = processor.getLastChosenProcessorIndex();
048        if (idx != -1) {
049            LoadBalanceDefinition def = getDefinition();
050            ProcessorDefinition<?> output = def.getOutputs().get(idx);
051            if (output != null) {
052                return output.getId();
053            }
054        }
055        return null;
056    }
057}