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 java.util.Iterator; 020import java.util.List; 021 022import javax.management.openmbean.CompositeData; 023import javax.management.openmbean.CompositeDataSupport; 024import javax.management.openmbean.CompositeType; 025import javax.management.openmbean.TabularData; 026import javax.management.openmbean.TabularDataSupport; 027 028import org.apache.camel.CamelContext; 029import org.apache.camel.api.management.ManagedResource; 030import org.apache.camel.api.management.mbean.CamelOpenMBeanTypes; 031import org.apache.camel.api.management.mbean.ManagedFailoverLoadBalancerMBean; 032import org.apache.camel.model.LoadBalanceDefinition; 033import org.apache.camel.model.ProcessorDefinition; 034import org.apache.camel.processor.loadbalancer.ExceptionFailureStatistics; 035import org.apache.camel.processor.loadbalancer.FailOverLoadBalancer; 036import org.apache.camel.util.CollectionStringBuffer; 037import org.apache.camel.util.ObjectHelper; 038 039/** 040 * @version 041 */ 042@ManagedResource(description = "Managed Failover LoadBalancer") 043public class ManagedFailoverLoadBalancer extends ManagedProcessor implements ManagedFailoverLoadBalancerMBean { 044 private final FailOverLoadBalancer processor; 045 private String exceptions; 046 047 public ManagedFailoverLoadBalancer(CamelContext context, FailOverLoadBalancer processor, LoadBalanceDefinition definition) { 048 super(context, processor, definition); 049 this.processor = processor; 050 } 051 052 @Override 053 public LoadBalanceDefinition getDefinition() { 054 return (LoadBalanceDefinition) super.getDefinition(); 055 } 056 057 @Override 058 public void reset() { 059 super.reset(); 060 processor.reset(); 061 } 062 063 @Override 064 public Boolean getSupportExtendedInformation() { 065 return true; 066 } 067 068 @Override 069 public Integer getSize() { 070 return processor.getProcessors().size(); 071 } 072 073 @Override 074 public Boolean isRoundRobin() { 075 return processor.isRoundRobin(); 076 } 077 078 @Override 079 public Boolean isSticky() { 080 return processor.isSticky(); 081 } 082 083 @Override 084 public Integer getMaximumFailoverAttempts() { 085 return processor.getMaximumFailoverAttempts(); 086 } 087 088 @Override 089 public String getExceptions() { 090 if (exceptions != null) { 091 return exceptions; 092 } 093 094 List<Class<?>> classes = processor.getExceptions(); 095 if (classes == null || classes.isEmpty()) { 096 exceptions = ""; 097 } else { 098 CollectionStringBuffer csb = new CollectionStringBuffer(","); 099 for (Class<?> clazz : classes) { 100 csb.append(clazz.getCanonicalName()); 101 } 102 exceptions = csb.toString(); 103 } 104 return exceptions; 105 } 106 107 @Override 108 public String getLastGoodProcessorId() { 109 int idx = processor.getLastGoodIndex(); 110 if (idx != -1) { 111 LoadBalanceDefinition def = getDefinition(); 112 ProcessorDefinition<?> output = def.getOutputs().get(idx); 113 if (output != null) { 114 return output.getId(); 115 } 116 } 117 return null; 118 } 119 120 @Override 121 public TabularData exceptionStatistics() { 122 try { 123 TabularData answer = new TabularDataSupport(CamelOpenMBeanTypes.loadbalancerExceptionsTabularType()); 124 125 ExceptionFailureStatistics statistics = processor.getExceptionFailureStatistics(); 126 127 Iterator<Class<?>> it = statistics.getExceptions(); 128 boolean empty = true; 129 while (it.hasNext()) { 130 empty = false; 131 Class<?> exception = it.next(); 132 String name = ObjectHelper.name(exception); 133 long counter = statistics.getFailureCounter(exception); 134 135 CompositeType ct = CamelOpenMBeanTypes.loadbalancerExceptionsCompositeType(); 136 CompositeData data = new CompositeDataSupport(ct, 137 new String[]{"exception", "failures"}, 138 new Object[]{name, counter}); 139 answer.put(data); 140 } 141 if (empty) { 142 // use Exception as a single general 143 String name = ObjectHelper.name(Exception.class); 144 long counter = statistics.getFailureCounter(Exception.class); 145 146 CompositeType ct = CamelOpenMBeanTypes.loadbalancerExceptionsCompositeType(); 147 CompositeData data = new CompositeDataSupport(ct, 148 new String[]{"exception", "failures"}, 149 new Object[]{name, counter}); 150 answer.put(data); 151 } 152 153 return answer; 154 } catch (Exception e) { 155 throw ObjectHelper.wrapRuntimeCamelException(e); 156 } 157 } 158 159}