001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.regionserver; 019 020import org.apache.hadoop.conf.Configuration; 021import org.apache.yetus.audience.InterfaceAudience; 022 023@InterfaceAudience.Private 024public class MetricsUserAggregateFactory { 025 private MetricsUserAggregateFactory() { 026 027 } 028 029 public static final String METRIC_USER_ENABLED_CONF = "hbase.regionserver.user.metrics.enabled"; 030 public static final boolean DEFAULT_METRIC_USER_ENABLED_CONF = false; 031 032 public static MetricsUserAggregate getMetricsUserAggregate(Configuration conf) { 033 if (conf.getBoolean(METRIC_USER_ENABLED_CONF, DEFAULT_METRIC_USER_ENABLED_CONF)) { 034 return new MetricsUserAggregateImpl(conf); 035 } else { 036 // NoOpMetricUserAggregate 037 return new MetricsUserAggregate() { 038 @Override 039 public MetricsUserAggregateSource getSource() { 040 return null; 041 } 042 043 @Override 044 public void updatePut(long t) { 045 046 } 047 048 @Override 049 public void updateDelete(long t) { 050 051 } 052 053 @Override 054 public void updateGet(long time, long blockBytesScanned) { 055 056 } 057 058 @Override 059 public void updateIncrement(long time, long blockBytesScanned) { 060 061 } 062 063 @Override 064 public void updateAppend(long time, long blockBytesScanned) { 065 066 } 067 068 @Override 069 public void updateReplay(long t) { 070 071 } 072 073 @Override 074 public void updateScan(long time, long blockBytesScanned) { 075 076 } 077 078 @Override 079 public void updateCheckAndMutate(long blockBytesScanned) { 080 081 } 082 083 @Override 084 public void updateFilteredReadRequests() { 085 086 } 087 088 @Override 089 public void updateReadRequestCount() { 090 091 } 092 }; 093 } 094 } 095 096}