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. 23 */ 24 public class MetricsThriftServerSourceFactoryImpl implements MetricsThriftServerSourceFactory { 25 26 /** 27 * A singleton used to make sure that only one thrift metrics source per server type is ever 28 * created. 29 */ 30 private static enum FactoryStorage { 31 INSTANCE; 32 MetricsThriftServerSourceImpl thriftOne = new MetricsThriftServerSourceImpl(METRICS_NAME, 33 METRICS_DESCRIPTION, 34 THRIFT_ONE_METRICS_CONTEXT, 35 THRIFT_ONE_JMX_CONTEXT); 36 MetricsThriftServerSourceImpl thriftTwo = new MetricsThriftServerSourceImpl(METRICS_NAME, 37 METRICS_DESCRIPTION, 38 THRIFT_TWO_METRICS_CONTEXT, 39 THRIFT_TWO_JMX_CONTEXT); 40 } 41 42 @Override 43 public MetricsThriftServerSource createThriftOneSource() { 44 return FactoryStorage.INSTANCE.thriftOne; 45 } 46 47 @Override 48 public MetricsThriftServerSource createThriftTwoSource() { 49 return FactoryStorage.INSTANCE.thriftTwo; 50 } 51 }