/**
* 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.hadoop.hbase.master.metrics;
import javax.management.ObjectName;
import org.apache.hadoop.hbase.metrics.MetricsMBeanBase;
import org.apache.hadoop.metrics.util.MBeanUtil;
import org.apache.hadoop.metrics.util.MetricsRegistry;
/**
* Exports the {@link MasterMetrics} statistics as an MBean
* for JMX.
*/
public class MasterStatistics extends MetricsMBeanBase {
private final ObjectName mbeanName;
public MasterStatistics(MetricsRegistry registry) {
super(registry, "MasterStatistics");
mbeanName = MBeanUtil.registerMBean("Master", "MasterStatistics", this);
}
public void shutdown() {
if (mbeanName != null)
MBeanUtil.unregisterMBean(mbeanName);
}
}