com.netflix.config.jmx.ConfigJMXManager Maven / Gradle / Ivy
/**
* Copyright 2014 Netflix, Inc.
*
* Licensed 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 com.netflix.config.jmx;
import java.lang.management.ManagementFactory;
import javax.management.InstanceAlreadyExistsException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.StandardMBean;
import org.apache.commons.configuration.AbstractConfiguration;
/**
* A JMX Manager class that helps in registering and unregistering MBeans
* @author stonse
*
*/
public class ConfigJMXManager {
public ConfigJMXManager() {
}
public static ConfigMBean registerConfigMbean(AbstractConfiguration config) {
StandardMBean mbean = null;
ConfigMBean bean = null;
try {
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
bean = new BaseConfigMBean(config);
mbean = new StandardMBean(bean, ConfigMBean.class);
mbs.registerMBean(mbean, getJMXObjectName(config, bean));
} catch (NotCompliantMBeanException e) {
throw new RuntimeException(
"NotCompliantMBeanException", e);
} catch (InstanceAlreadyExistsException e) {
throw new RuntimeException( "InstanceAlreadyExistsException", e);
} catch (MBeanRegistrationException e) {
throw new RuntimeException(
"MBeanRegistrationException", e);
} catch (Exception e) {
throw new RuntimeException(
"registerConfigMbeanException", e);
}
return bean;
}
public static void unRegisterConfigMBean(AbstractConfiguration config, ConfigMBean mbean) {
if (mbean == null) {
throw new RuntimeException(
"Cannot unregister JMX Mbean. The object is null");
}
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
try {
mbs.unregisterMBean(getJMXObjectName(config, mbean));
} catch (InstanceNotFoundException e) {
throw new RuntimeException(
"InstanceNotFoundException", e);
} catch (MBeanRegistrationException e) {
throw new RuntimeException(
"MBeanRegistrationException", e);
} catch (Exception e) {
throw new RuntimeException(
"unRegisterConfigMBeanException", e);
}
}
private static ObjectName getJMXObjectName(
AbstractConfiguration config, ConfigMBean bean)
throws Exception {
try {
Class c = bean.getClass();
String className = c.getName();
int lastDot = className.lastIndexOf('.');
ObjectName name = new ObjectName("Config-"
+ className.substring(0, lastDot) + ":class="
+ className.substring(lastDot + 1));
return name;
} catch (MalformedObjectNameException e) {
throw new RuntimeException(
"MalformedObjectNameException", e);
} catch (NullPointerException e) {
throw new RuntimeException(
"NullPointerException", e);
}
}
}