/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.management.mbean;
import java.util.Iterator;
import java.util.List;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeDataSupport;
import javax.management.openmbean.CompositeType;
import javax.management.openmbean.TabularData;
import javax.management.openmbean.TabularDataSupport;
import org.apache.camel.CamelContext;
import org.apache.camel.api.management.ManagedResource;
import org.apache.camel.api.management.mbean.CamelOpenMBeanTypes;
import org.apache.camel.api.management.mbean.ManagedCircuitBreakerLoadBalancerMBean;
import org.apache.camel.model.LoadBalanceDefinition;
import org.apache.camel.processor.loadbalancer.CircuitBreakerLoadBalancer;
import org.apache.camel.processor.loadbalancer.ExceptionFailureStatistics;
import org.apache.camel.util.CollectionStringBuffer;
import org.apache.camel.util.ObjectHelper;
/**
* @version
*/
@ManagedResource(description = "Managed CircuitBreaker LoadBalancer")
public class ManagedCircuitBreakerLoadBalancer extends ManagedProcessor implements ManagedCircuitBreakerLoadBalancerMBean {
private final CircuitBreakerLoadBalancer processor;
private String exceptions;
public ManagedCircuitBreakerLoadBalancer(CamelContext context, CircuitBreakerLoadBalancer processor, LoadBalanceDefinition definition) {
super(context, processor, definition);
this.processor = processor;
}
@Override
public Boolean getSupportExtendedInformation() {
return true;
}
@Override
public Integer getSize() {
return processor.getProcessors().size();
}
@Override
public Long getHalfOpenAfter() {
return processor.getHalfOpenAfter();
}
@Override
public Integer getThreshold() {
return processor.getThreshold();
}
@Override
public String getExceptions() {
if (exceptions != null) {
return exceptions;
}
List<Class<?>> classes = processor.getExceptions();
if (classes == null || classes.isEmpty()) {
exceptions = "";
} else {
CollectionStringBuffer csb = new CollectionStringBuffer(",");
for (Class<?> clazz : classes) {
csb.append(clazz.getCanonicalName());
}
exceptions = csb.toString();
}
return exceptions;
}
@Override
public String getCircuitBreakerState() {
int num = processor.getState();
if (num == 0) {
return "closed";
} else if (num == 1) {
return "half open";
} else {
return "open";
}
}
@Override
public String dumpState() {
return processor.dumpState();
}
@Override
public TabularData exceptionStatistics() {
try {
TabularData answer = new TabularDataSupport(CamelOpenMBeanTypes.loadbalancerExceptionsTabularType());
ExceptionFailureStatistics statistics = processor.getExceptionFailureStatistics();
Iterator<Class<?>> it = statistics.getExceptions();
boolean empty = true;
while (it.hasNext()) {
empty = false;
Class<?> exception = it.next();
String name = ObjectHelper.name(exception);
long counter = statistics.getFailureCounter(exception);
CompositeType ct = CamelOpenMBeanTypes.loadbalancerExceptionsCompositeType();
CompositeData data = new CompositeDataSupport(ct,
new String[]{"exception", "failures"},
new Object[]{name, counter});
answer.put(data);
}
if (empty) {
// use Exception as a single general
String name = ObjectHelper.name(Exception.class);
long counter = statistics.getFailureCounter(Exception.class);
CompositeType ct = CamelOpenMBeanTypes.loadbalancerExceptionsCompositeType();
CompositeData data = new CompositeDataSupport(ct,
new String[]{"exception", "failures"},
new Object[]{name, counter});
answer.put(data);
}
return answer;
} catch (Exception e) {
throw ObjectHelper.wrapRuntimeCamelException(e);
}
}
}