001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with this 004 * work for additional information regarding copyright ownership. The ASF 005 * licenses this file to you under the Apache License, Version 2.0 (the 006 * "License"); you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 013 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 014 * License for the specific language governing permissions and limitations 015 * under the License. 016 */ 017package org.apache.hadoop.hbase.util; 018 019import java.io.IOException; 020import java.util.ArrayList; 021import java.util.List; 022import java.util.Random; 023 024import org.apache.yetus.audience.InterfaceAudience; 025import org.apache.hadoop.hbase.Cell; 026import org.apache.hadoop.hbase.CellScanner; 027import org.apache.hadoop.hbase.KeyValue; 028import org.apache.hadoop.hbase.KeyValue.Type; 029import org.apache.hadoop.hbase.Tag; 030import org.apache.hadoop.hbase.ArrayBackedTag; 031import org.apache.hadoop.hbase.client.Mutation; 032import org.apache.hadoop.hbase.client.Put; 033import org.apache.hadoop.hbase.util.MultiThreadedAction.DefaultDataGenerator; 034import org.apache.hadoop.hbase.util.test.LoadTestDataGenerator; 035 036@InterfaceAudience.Private 037public class LoadTestDataGeneratorWithTags extends DefaultDataGenerator { 038 039 private int minNumTags, maxNumTags; 040 private int minTagLength, maxTagLength; 041 private Random random = new Random(); 042 043 public LoadTestDataGeneratorWithTags(int minValueSize, int maxValueSize, int minColumnsPerKey, 044 int maxColumnsPerKey, byte[]... columnFamilies) { 045 super(minValueSize, maxValueSize, minColumnsPerKey, maxColumnsPerKey, columnFamilies); 046 } 047 048 @Override 049 public void initialize(String[] args) { 050 super.initialize(args); 051 if (args.length != 4) { 052 throw new IllegalArgumentException("LoadTestDataGeneratorWithTags must have " 053 + "4 initialization arguments. ie. minNumTags:maxNumTags:minTagLength:maxTagLength"); 054 } 055 // 1st arg in args is the min number of tags to be used with every cell 056 this.minNumTags = Integer.parseInt(args[0]); 057 // 2nd arg in args is the max number of tags to be used with every cell 058 this.maxNumTags = Integer.parseInt(args[1]); 059 // 3rd arg in args is the min tag length 060 this.minTagLength = Integer.parseInt(args[2]); 061 // 4th arg in args is the max tag length 062 this.maxTagLength = Integer.parseInt(args[3]); 063 } 064 065 @Override 066 public Mutation beforeMutate(long rowkeyBase, Mutation m) throws IOException { 067 if (m instanceof Put) { 068 List<Cell> updatedCells = new ArrayList<>(); 069 int numTags; 070 if (minNumTags == maxNumTags) { 071 numTags = minNumTags; 072 } else { 073 numTags = minNumTags + random.nextInt(maxNumTags - minNumTags); 074 } 075 List<Tag> tags; 076 for (CellScanner cellScanner = m.cellScanner(); cellScanner.advance();) { 077 Cell cell = cellScanner.current(); 078 byte[] tag = LoadTestDataGenerator.generateData(random, 079 minTagLength + random.nextInt(maxTagLength - minTagLength)); 080 tags = new ArrayList<>(); 081 for (int n = 0; n < numTags; n++) { 082 tags.add(new ArrayBackedTag((byte) 127, tag)); 083 } 084 Cell updatedCell = new KeyValue(cell.getRowArray(), cell.getRowOffset(), 085 cell.getRowLength(), cell.getFamilyArray(), cell.getFamilyOffset(), 086 cell.getFamilyLength(), cell.getQualifierArray(), cell.getQualifierOffset(), 087 cell.getQualifierLength(), cell.getTimestamp(), Type.codeToType(cell.getTypeByte()), 088 cell.getValueArray(), cell.getValueOffset(), cell.getValueLength(), tags); 089 updatedCells.add(updatedCell); 090 } 091 m.getFamilyCellMap().clear(); 092 // Clear and add new Cells to the Mutation. 093 for (Cell cell : updatedCells) { 094 ((Put) m).add(cell); 095 } 096 } 097 return m; 098 } 099}