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.yetus.audience.InterfaceAudience; 021 022/** 023 * Accounting of current heap and data sizes. 024 * <em>NOT THREAD SAFE</em>. 025 * Use in a 'local' context only where just a single-thread is updating. No concurrency! 026 * Used, for example, when summing all Cells in a single batch where result is then applied to the 027 * Store. 028 * @see ThreadSafeMemStoreSizing 029 */ 030@InterfaceAudience.Private 031class NonThreadSafeMemStoreSizing implements MemStoreSizing { 032 private long dataSize = 0; 033 private long heapSize = 0; 034 private long offHeapSize = 0; 035 private int cellsCount = 0; 036 037 NonThreadSafeMemStoreSizing() { 038 this(0, 0, 0, 0); 039 } 040 041 NonThreadSafeMemStoreSizing(MemStoreSize mss) { 042 this(mss.getDataSize(), mss.getHeapSize(), mss.getOffHeapSize(), mss.getCellsCount()); 043 } 044 045 NonThreadSafeMemStoreSizing(long dataSize, long heapSize, long offHeapSize, int cellsCount) { 046 incMemStoreSize(dataSize, heapSize, offHeapSize, cellsCount); 047 } 048 049 @Override 050 public MemStoreSize getMemStoreSize() { 051 return new MemStoreSize(this.dataSize, this.heapSize, this.offHeapSize, this.cellsCount); 052 } 053 054 @Override 055 public long incMemStoreSize(long dataSizeDelta, long heapSizeDelta, long offHeapSizeDelta, 056 int cellsCountDelta) { 057 this.offHeapSize += offHeapSizeDelta; 058 this.heapSize += heapSizeDelta; 059 this.dataSize += dataSizeDelta; 060 this.cellsCount += cellsCountDelta; 061 return this.dataSize; 062 } 063 064 @Override 065 public boolean compareAndSetDataSize(long expected, long updated) { 066 if (dataSize == expected) { 067 dataSize = updated; 068 return true; 069 } 070 return false; 071 } 072 073 @Override 074 public long getDataSize() { 075 return dataSize; 076 } 077 078 @Override 079 public long getHeapSize() { 080 return heapSize; 081 } 082 083 @Override 084 public long getOffHeapSize() { 085 return offHeapSize; 086 } 087 088 @Override 089 public int getCellsCount() { 090 return cellsCount; 091 } 092 093 @Override 094 public String toString() { 095 return getMemStoreSize().toString(); 096 } 097}