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