1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.hadoop.hbase.regionserver; 19 20 /** 21 * Impl for exposing Region Server Information through JMX 22 */ 23 public class MXBeanImpl implements MXBean { 24 25 private final HRegionServer regionServer; 26 27 private static MXBeanImpl instance = null; 28 public synchronized static MXBeanImpl init(final HRegionServer rs){ 29 if (instance == null) { 30 instance = new MXBeanImpl(rs); 31 } 32 return instance; 33 } 34 35 protected MXBeanImpl(final HRegionServer rs) { 36 this.regionServer = rs; 37 } 38 39 @Override 40 public String[] getCoprocessors() { 41 return regionServer.getCoprocessors(); 42 } 43 44 @Override 45 public String getZookeeperQuorum() { 46 return regionServer.getZooKeeper().getQuorum(); 47 } 48 49 @Override 50 public String getServerName() { 51 return regionServer.getServerName().getServerName(); 52 } 53 54 }