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.ManagedCircuitBreakerLoadBalancerMBean; 032import org.apache.camel.model.LoadBalanceDefinition; 033import org.apache.camel.processor.loadbalancer.CircuitBreakerLoadBalancer; 034import org.apache.camel.processor.loadbalancer.ExceptionFailureStatistics; 035import org.apache.camel.util.CollectionStringBuffer; 036import org.apache.camel.util.ObjectHelper; 037 038/** 039 * @version 040 */ 041@ManagedResource(description = "Managed CircuitBreaker LoadBalancer") 042public class ManagedCircuitBreakerLoadBalancer extends ManagedProcessor implements ManagedCircuitBreakerLoadBalancerMBean { 043 private final CircuitBreakerLoadBalancer processor; 044 private String exceptions; 045 046 public ManagedCircuitBreakerLoadBalancer(CamelContext context, CircuitBreakerLoadBalancer processor, LoadBalanceDefinition definition) { 047 super(context, processor, definition); 048 this.processor = processor; 049 } 050 051 @Override 052 public Boolean getSupportExtendedInformation() { 053 return true; 054 } 055 056 @Override 057 public Integer getSize() { 058 return processor.getProcessors().size(); 059 } 060 061 @Override 062 public Long getHalfOpenAfter() { 063 return processor.getHalfOpenAfter(); 064 } 065 066 @Override 067 public Integer getThreshold() { 068 return processor.getThreshold(); 069 } 070 071 @Override 072 public String getExceptions() { 073 if (exceptions != null) { 074 return exceptions; 075 } 076 077 List<Class<?>> classes = processor.getExceptions(); 078 if (classes == null || classes.isEmpty()) { 079 exceptions = ""; 080 } else { 081 CollectionStringBuffer csb = new CollectionStringBuffer(","); 082 for (Class<?> clazz : classes) { 083 csb.append(clazz.getCanonicalName()); 084 } 085 exceptions = csb.toString(); 086 } 087 return exceptions; 088 } 089 090 @Override 091 public String getCircuitBreakerState() { 092 int num = processor.getState(); 093 if (num == 0) { 094 return "closed"; 095 } else if (num == 1) { 096 return "half open"; 097 } else { 098 return "open"; 099 } 100 } 101 102 @Override 103 public String dumpState() { 104 return processor.dumpState(); 105 } 106 107 @Override 108 public TabularData exceptionStatistics() { 109 try { 110 TabularData answer = new TabularDataSupport(CamelOpenMBeanTypes.loadbalancerExceptionsTabularType()); 111 112 ExceptionFailureStatistics statistics = processor.getExceptionFailureStatistics(); 113 114 Iterator<Class<?>> it = statistics.getExceptions(); 115 boolean empty = true; 116 while (it.hasNext()) { 117 empty = false; 118 Class<?> exception = it.next(); 119 String name = ObjectHelper.name(exception); 120 long counter = statistics.getFailureCounter(exception); 121 122 CompositeType ct = CamelOpenMBeanTypes.loadbalancerExceptionsCompositeType(); 123 CompositeData data = new CompositeDataSupport(ct, 124 new String[]{"exception", "failures"}, 125 new Object[]{name, counter}); 126 answer.put(data); 127 } 128 if (empty) { 129 // use Exception as a single general 130 String name = ObjectHelper.name(Exception.class); 131 long counter = statistics.getFailureCounter(Exception.class); 132 133 CompositeType ct = CamelOpenMBeanTypes.loadbalancerExceptionsCompositeType(); 134 CompositeData data = new CompositeDataSupport(ct, 135 new String[]{"exception", "failures"}, 136 new Object[]{name, counter}); 137 answer.put(data); 138 } 139 140 return answer; 141 } catch (Exception e) { 142 throw ObjectHelper.wrapRuntimeCamelException(e); 143 } 144 } 145 146}