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.ManagedStickyLoadBalancerMBean;
022import org.apache.camel.model.LoadBalanceDefinition;
023import org.apache.camel.model.ProcessorDefinition;
024import org.apache.camel.model.loadbalancer.StickyLoadBalancerDefinition;
025import org.apache.camel.processor.loadbalancer.StickyLoadBalancer;
026
027@ManagedResource(description = "Managed Sticky LoadBalancer")
028public class ManagedStickyLoadBalancer extends ManagedProcessor implements ManagedStickyLoadBalancerMBean {
029
030    public ManagedStickyLoadBalancer(CamelContext context, StickyLoadBalancer processor, LoadBalanceDefinition definition) {
031        super(context, processor, definition);
032    }
033
034    @Override
035    public StickyLoadBalancer getProcessor() {
036        return (StickyLoadBalancer) super.getProcessor();
037    }
038
039    @Override
040    public LoadBalanceDefinition getDefinition() {
041        return (LoadBalanceDefinition) super.getDefinition();
042    }
043
044    @Override
045    public String getExpressionLanguage() {
046        StickyLoadBalancerDefinition sticky = (StickyLoadBalancerDefinition) getDefinition().getLoadBalancerType();
047        return sticky.getCorrelationExpression().getExpressionType().getLanguage();
048    }
049
050    @Override
051    public String getExpression() {
052        StickyLoadBalancerDefinition sticky = (StickyLoadBalancerDefinition) getDefinition().getLoadBalancerType();
053        return sticky.getCorrelationExpression().getExpressionType().getExpression();
054    }
055
056    @Override
057    public Integer getSize() {
058        return getProcessor().getProcessors().size();
059    }
060
061    @Override
062    public String getLastChosenProcessorId() {
063        int idx = getProcessor().getLastChosenProcessorIndex();
064        if (idx != -1) {
065            LoadBalanceDefinition def = getDefinition();
066            ProcessorDefinition<?> output = def.getOutputs().get(idx);
067            if (output != null) {
068                return output.getId();
069            }
070        }
071        return null;
072    }
073
074}