hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestTimeRangeMapRed.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.mapreduce;
  19
  20 import java.io.File;
  21 import java.io.IOException;
  22 import java.util.ArrayList;
  23 import java.util.List;
  24 import java.util.Map;
  25 import java.util.NavigableMap;
  26 import java.util.TreeMap;
  27 import org.apache.hadoop.conf.Configurable;
  28 import org.apache.hadoop.conf.Configuration;
  29 import org.apache.hadoop.fs.FileUtil;
  30 import org.apache.hadoop.hbase.Cell;
  31 import org.apache.hadoop.hbase.CellUtil;
  32 import org.apache.hadoop.hbase.HBaseClassTestRule;
  33 import org.apache.hadoop.hbase.HBaseTestingUtility;
  34 import org.apache.hadoop.hbase.TableName;
  35 import org.apache.hadoop.hbase.client.Admin;
  36 import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
  37 import org.apache.hadoop.hbase.client.Connection;
  38 import org.apache.hadoop.hbase.client.ConnectionFactory;
  39 import org.apache.hadoop.hbase.client.Durability;
  40 import org.apache.hadoop.hbase.client.Put;
  41 import org.apache.hadoop.hbase.client.Result;
  42 import org.apache.hadoop.hbase.client.ResultScanner;
  43 import org.apache.hadoop.hbase.client.Scan;
  44 import org.apache.hadoop.hbase.client.Table;
  45 import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
  46 import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
  47 import org.apache.hadoop.hbase.testclassification.LargeTests;
  48 import org.apache.hadoop.hbase.testclassification.MapReduceTests;
  49 import org.apache.hadoop.hbase.util.Bytes;
  50 import org.apache.hadoop.io.MapWritable;
  51 import org.apache.hadoop.io.Text;
  52 import org.apache.hadoop.mapreduce.Job;
  53 import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;
  54 import org.junit.AfterClass;
  55 import org.junit.Before;
  56 import org.junit.BeforeClass;
  57 import org.junit.ClassRule;
  58 import org.junit.Test;
  59 import org.junit.experimental.categories.Category;
  60 import org.slf4j.Logger;
  61 import org.slf4j.LoggerFactory;
  62
  63 @Category({MapReduceTests.class, LargeTests.class})
  64 public class TestTimeRangeMapRed {
  65
  66   @ClassRule
  67   public static final HBaseClassTestRule CLASS_RULE =
  68       HBaseClassTestRule.forClass(TestTimeRangeMapRed.class);
  69
  70   private final static Logger log = LoggerFactory.getLogger(TestTimeRangeMapRed.class);
  71   private static final HBaseTestingUtility UTIL =
  72     new HBaseTestingUtility();
  73   private Admin admin;
  74
  75   private static final byte [] KEY = Bytes.toBytes("row1");
  76   private static final NavigableMap<Long, Boolean> TIMESTAMP = new TreeMap<>();
  77   static {
  78     TIMESTAMP.put((long)1245620000, false);
  79     TIMESTAMP.put((long)1245620005, true); // include
  80     TIMESTAMP.put((long)1245620010, true); // include
  81     TIMESTAMP.put((long)1245620055, true); // include
  82     TIMESTAMP.put((long)1245620100, true); // include
  83     TIMESTAMP.put((long)1245620150, false);
  84     TIMESTAMP.put((long)1245620250, false);
  85   }
  86   static final long MINSTAMP = 1245620005;
  87   static final long MAXSTAMP = 1245620100 + 1; // maxStamp itself is excluded. so increment it.
  88
  89   static final TableName TABLE_NAME = TableName.valueOf("table123");
  90   static final byte[] FAMILY_NAME = Bytes.toBytes("text");
  91   static final byte[] COLUMN_NAME = Bytes.toBytes("input");
  92
  93   @BeforeClass
  94   public static void beforeClass() throws Exception {
  95     UTIL.startMiniCluster();
  96   }
  97
  98   @AfterClass
  99   public static void afterClass() throws Exception {
 100     UTIL.shutdownMiniCluster();
 101   }
 102
 103   @Before
 104   public void before() throws Exception {
 105     this.admin = UTIL.getAdmin();
 106   }
 107
 108   private static class ProcessTimeRangeMapper
 109   extends TableMapper<ImmutableBytesWritable, MapWritable>
 110   implements Configurable {
 111
 112     private Configuration conf = null;
 113     private Table table = null;
 114
 115     @Override
 116     public void map(ImmutableBytesWritable key, Result result,
 117         Context context)
 118     throws IOException {
 119       List<Long> tsList = new ArrayList<>();
 120       for (Cell kv : result.listCells()) {
 121         tsList.add(kv.getTimestamp());
 122       }
 123
 124       List<Put> puts = new ArrayList<>();
 125       for (Long ts : tsList) {
 126         Put put = new Put(key.get());
 127         put.setDurability(Durability.SKIP_WAL);
 128         put.addColumn(FAMILY_NAME, COLUMN_NAME, ts, Bytes.toBytes(true));
 129         puts.add(put);
 130       }
 131       table.put(puts);
 132     }
 133
 134     @Override
 135     public Configuration getConf() {
 136       return conf;
 137     }
 138
 139     @Override
 140     public void setConf(Configuration configuration) {
 141       this.conf = configuration;
 142       try {
 143         Connection connection = ConnectionFactory.createConnection(conf);
 144         table = connection.getTable(TABLE_NAME);
 145       } catch (IOException e) {
 146         e.printStackTrace();
 147       }
 148     }
 149   }
 150
 151   @Test
 152   public void testTimeRangeMapRed()
 153       throws IOException, InterruptedException, ClassNotFoundException {
 154     final TableDescriptorBuilder.ModifyableTableDescriptor tableDescriptor =
 155       new TableDescriptorBuilder.ModifyableTableDescriptor(TABLE_NAME);
 156     final ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor familyDescriptor =
 157       new ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor(FAMILY_NAME);
 158     familyDescriptor.setMaxVersions(Integer.MAX_VALUE);
 159     tableDescriptor.setColumnFamily(familyDescriptor);
 160     admin.createTable(tableDescriptor);
 161     List<Put> puts = new ArrayList<>();
 162     for (Map.Entry<Long, Boolean> entry : TIMESTAMP.entrySet()) {
 163       Put put = new Put(KEY);
 164       put.setDurability(Durability.SKIP_WAL);
 165       put.addColumn(FAMILY_NAME, COLUMN_NAME, entry.getKey(), Bytes.toBytes(false));
 166       puts.add(put);
 167     }
 168     Table table = UTIL.getConnection().getTable(tableDescriptor.getTableName());
 169     table.put(puts);
 170     runTestOnTable();
 171     verify(table);
 172     table.close();
 173   }
 174
 175   private void runTestOnTable()
 176   throws IOException, InterruptedException, ClassNotFoundException {
 177     Job job = null;
 178     try {
 179       job = new Job(UTIL.getConfiguration(), "test123");
 180       job.setOutputFormatClass(NullOutputFormat.class);
 181       job.setNumReduceTasks(0);
 182       Scan scan = new Scan();
 183       scan.addColumn(FAMILY_NAME, COLUMN_NAME);
 184       scan.setTimeRange(MINSTAMP, MAXSTAMP);
 185       scan.setMaxVersions();
 186       TableMapReduceUtil.initTableMapperJob(TABLE_NAME,
 187         scan, ProcessTimeRangeMapper.class, Text.class, Text.class, job);
 188       job.waitForCompletion(true);
 189     } catch (IOException e) {
 190       // TODO Auto-generated catch block
 191       e.printStackTrace();
 192     } finally {
 193       if (job != null) {
 194         FileUtil.fullyDelete(
 195           new File(job.getConfiguration().get("hadoop.tmp.dir")));
 196       }
 197     }
 198   }
 199
 200   private void verify(final Table table) throws IOException {
 201     Scan scan = new Scan();
 202     scan.addColumn(FAMILY_NAME, COLUMN_NAME);
 203     scan.setMaxVersions(1);
 204     ResultScanner scanner = table.getScanner(scan);
 205     for (Result r: scanner) {
 206       for (Cell kv : r.listCells()) {
 207         log.debug(Bytes.toString(r.getRow()) + "\t" + Bytes.toString(CellUtil.cloneFamily(kv))
 208             + "\t" + Bytes.toString(CellUtil.cloneQualifier(kv))
 209             + "\t" + kv.getTimestamp() + "\t" + Bytes.toBoolean(CellUtil.cloneValue(kv)));
 210         org.junit.Assert.assertEquals(TIMESTAMP.get(kv.getTimestamp()),
 211           Bytes.toBoolean(CellUtil.cloneValue(kv)));
 212       }
 213     }
 214     scanner.close();
 215   }
 216
 217 }
 218