| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.hbase.regionserver; |
| |
| import org.apache.hadoop.hbase.HBaseInterfaceAudience; |
| import org.apache.yetus.audience.InterfaceAudience; |
| /** |
| * Data structure of three longs. |
| * Convenient package in which to carry current state of three counters. |
| * <p>Immutable!</p> |
| * @see MemStoreSizing |
| */ |
| @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC) |
| public class MemStoreSize { |
| /** |
| *'dataSize' tracks the Cell's data bytes size alone (Key bytes, value bytes). A cell's data can |
| * be in on heap or off heap area depending on the MSLAB and its configuration to be using on |
| * heap or off heap LABs |
| */ |
| private final long dataSize; |
| |
| /**'getHeapSize' tracks all Cell's heap size occupancy. This will include Cell POJO heap overhead. |
| * When Cells in on heap area, this will include the cells data size as well. |
| */ |
| private final long heapSize; |
| |
| /** off-heap size: the aggregated size of all data that is allocated off-heap including all |
| * key-values that reside off-heap and the metadata that resides off-heap |
| */ |
| private final long offHeapSize; |
| |
| private final int cellsCount; |
| |
| /** |
| * Package private constructor. |
| */ |
| MemStoreSize() { |
| this(0L, 0L, 0L, 0); |
| } |
| |
| /** |
| * Package private constructor. |
| */ |
| MemStoreSize(long dataSize, long heapSize, long offHeapSize, int cellsCount) { |
| this.dataSize = dataSize; |
| this.heapSize = heapSize; |
| this.offHeapSize = offHeapSize; |
| this.cellsCount = cellsCount; |
| } |
| |
| /** |
| * Package private constructor. |
| */ |
| MemStoreSize(MemStoreSize memStoreSize) { |
| this.dataSize = memStoreSize.getDataSize(); |
| this.heapSize = memStoreSize.getHeapSize(); |
| this.offHeapSize = memStoreSize.getOffHeapSize(); |
| this.cellsCount = memStoreSize.getCellsCount(); |
| } |
| |
| public boolean isEmpty() { |
| return this.dataSize == 0 && this.heapSize == 0 && this.offHeapSize == 0 |
| && this.cellsCount == 0; |
| } |
| |
| public long getDataSize() { |
| return this.dataSize; |
| } |
| |
| public long getHeapSize() { |
| return this.heapSize; |
| } |
| |
| public long getOffHeapSize() { |
| return this.offHeapSize; |
| } |
| |
| public int getCellsCount() { |
| return this.cellsCount; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == null) { |
| return false; |
| } |
| if (!(obj instanceof MemStoreSize)) { |
| return false; |
| } |
| MemStoreSize other = (MemStoreSize) obj; |
| return this.dataSize == other.dataSize && this.heapSize == other.heapSize |
| && this.offHeapSize == other.offHeapSize && this.cellsCount == other.cellsCount; |
| } |
| |
| @Override |
| public int hashCode() { |
| long h = this.dataSize; |
| h = h * 31 + this.heapSize; |
| h = h * 31 + this.offHeapSize; |
| h = h * 31 + this.cellsCount; |
| return (int) h; |
| } |
| |
| @Override |
| public String toString() { |
| return "dataSize=" + this.dataSize + ", getHeapSize=" + this.heapSize + ", getOffHeapSize=" |
| + this.offHeapSize + ", getCellsCount=" + this.cellsCount; |
| } |
| } |