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.util; 019 020import java.util.Arrays; 021 022/** 023 * A load test data generator for MOB 024 */ 025public class LoadTestDataGeneratorWithMOB extends MultiThreadedAction.DefaultDataGenerator { 026 027 private byte[] mobColumnFamily; 028 private LoadTestKVGenerator mobKvGenerator; 029 030 public LoadTestDataGeneratorWithMOB(int minValueSize, int maxValueSize, int minColumnsPerKey, 031 int maxColumnsPerKey, byte[]... columnFamilies) { 032 super(minValueSize, maxValueSize, minColumnsPerKey, maxColumnsPerKey, columnFamilies); 033 } 034 035 public LoadTestDataGeneratorWithMOB(byte[]... columnFamilies) { 036 super(columnFamilies); 037 } 038 039 @Override 040 public void initialize(String[] args) { 041 super.initialize(args); 042 if (args.length != 3) { 043 throw new IllegalArgumentException("LoadTestDataGeneratorWithMOB can have 3 arguments." 044 + "1st argument is a column family, the 2nd argument " 045 + "is the minimum mob data size and the 3rd argument " + "is the maximum mob data size."); 046 } 047 String mobColumnFamily = args[0]; 048 int minMobDataSize = Integer.parseInt(args[1]); 049 int maxMobDataSize = Integer.parseInt(args[2]); 050 configureMob(Bytes.toBytes(mobColumnFamily), minMobDataSize, maxMobDataSize); 051 } 052 053 private void configureMob(byte[] mobColumnFamily, int minMobDataSize, int maxMobDataSize) { 054 this.mobColumnFamily = mobColumnFamily; 055 mobKvGenerator = new LoadTestKVGenerator(minMobDataSize, maxMobDataSize); 056 } 057 058 @Override 059 public byte[] generateValue(byte[] rowKey, byte[] cf, byte[] column) { 060 if (Arrays.equals(cf, mobColumnFamily)) 061 return mobKvGenerator.generateRandomSizeValue(rowKey, cf, column); 062 063 return super.generateValue(rowKey, cf, column); 064 } 065}