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 19 package org.apache.hadoop.hbase.thrift; 20 21 /** 22 * Class used to create metrics sources for Thrift and Thrift2 servers in hadoop 1's compat 23 * library. 24 */ 25 public class MetricsThriftServerSourceFactoryImpl implements MetricsThriftServerSourceFactory { 26 27 /** 28 * A singleton used to make sure that only one thrift metrics source per server type is ever 29 * created. 30 */ 31 private static enum FactoryStorage { 32 INSTANCE; 33 MetricsThriftServerSourceImpl thriftOne = new MetricsThriftServerSourceImpl(METRICS_NAME, 34 METRICS_DESCRIPTION, 35 THRIFT_ONE_METRICS_CONTEXT, 36 THRIFT_ONE_JMX_CONTEXT); 37 MetricsThriftServerSourceImpl thriftTwo = new MetricsThriftServerSourceImpl(METRICS_NAME, 38 METRICS_DESCRIPTION, 39 THRIFT_TWO_METRICS_CONTEXT, 40 THRIFT_TWO_JMX_CONTEXT); 41 } 42 43 @Override 44 public MetricsThriftServerSource createThriftOneSource() { 45 return FactoryStorage.INSTANCE.thriftOne; 46 } 47 48 @Override 49 public MetricsThriftServerSource createThriftTwoSource() { 50 return FactoryStorage.INSTANCE.thriftTwo; 51 } 52 }