hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestRawAsyncTablePartialScan.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.client;
  19
  20 import static org.junit.Assert.assertEquals;
  21
  22 import java.util.List;
  23 import java.util.concurrent.ExecutionException;
  24 import java.util.stream.Collectors;
  25 import java.util.stream.IntStream;
  26 import org.apache.hadoop.hbase.HBaseClassTestRule;
  27 import org.apache.hadoop.hbase.HBaseTestingUtility;
  28 import org.apache.hadoop.hbase.TableName;
  29 import org.apache.hadoop.hbase.testclassification.ClientTests;
  30 import org.apache.hadoop.hbase.testclassification.MediumTests;
  31 import org.apache.hadoop.hbase.util.Bytes;
  32 import org.junit.AfterClass;
  33 import org.junit.BeforeClass;
  34 import org.junit.ClassRule;
  35 import org.junit.Test;
  36 import org.junit.experimental.categories.Category;
  37
  38 @Category({ MediumTests.class, ClientTests.class })
  39 public class TestRawAsyncTablePartialScan {
  40
  41   @ClassRule
  42   public static final HBaseClassTestRule CLASS_RULE =
  43       HBaseClassTestRule.forClass(TestRawAsyncTablePartialScan.class);
  44
  45   private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
  46
  47   private static TableName TABLE_NAME = TableName.valueOf("async");
  48
  49   private static byte[] FAMILY = Bytes.toBytes("cf");
  50
  51   private static byte[][] CQS =
  52     new byte[][] { Bytes.toBytes("cq1"), Bytes.toBytes("cq2"), Bytes.toBytes("cq3") };
  53
  54   private static int COUNT = 100;
  55
  56   private static AsyncConnection CONN;
  57
  58   private static AsyncTable<?> TABLE;
  59
  60   @BeforeClass
  61   public static void setUp() throws Exception {
  62     TEST_UTIL.startMiniCluster(1);
  63     TEST_UTIL.createTable(TABLE_NAME, FAMILY);
  64     TEST_UTIL.waitTableAvailable(TABLE_NAME);
  65     CONN = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get();
  66     TABLE = CONN.getTable(TABLE_NAME);
  67     TABLE
  68         .putAll(IntStream.range(0, COUNT)
  69             .mapToObj(i -> new Put(Bytes.toBytes(String.format("%02d", i)))
  70                 .addColumn(FAMILY, CQS[0], Bytes.toBytes(i))
  71                 .addColumn(FAMILY, CQS[1], Bytes.toBytes(2 * i))
  72                 .addColumn(FAMILY, CQS[2], Bytes.toBytes(3 * i)))
  73             .collect(Collectors.toList()))
  74         .get();
  75   }
  76
  77   @AfterClass
  78   public static void tearDown() throws Exception {
  79     CONN.close();
  80     TEST_UTIL.shutdownMiniCluster();
  81   }
  82
  83   @Test
  84   public void testBatchDoNotAllowPartial() throws InterruptedException, ExecutionException {
  85     // we set batch to 2 and max result size to 1, then server will only returns one result per call
  86     // but we should get 2 + 1 for every row.
  87     List<Result> results = TABLE.scanAll(new Scan().setBatch(2).setMaxResultSize(1)).get();
  88     assertEquals(2 * COUNT, results.size());
  89     for (int i = 0; i < COUNT; i++) {
  90       Result firstTwo = results.get(2 * i);
  91       assertEquals(String.format("%02d", i), Bytes.toString(firstTwo.getRow()));
  92       assertEquals(2, firstTwo.size());
  93       assertEquals(i, Bytes.toInt(firstTwo.getValue(FAMILY, CQS[0])));
  94       assertEquals(2 * i, Bytes.toInt(firstTwo.getValue(FAMILY, CQS[1])));
  95
  96       Result secondOne = results.get(2 * i + 1);
  97       assertEquals(String.format("%02d", i), Bytes.toString(secondOne.getRow()));
  98       assertEquals(1, secondOne.size());
  99       assertEquals(3 * i, Bytes.toInt(secondOne.getValue(FAMILY, CQS[2])));
 100     }
 101   }
 102
 103   @Test
 104   public void testReversedBatchDoNotAllowPartial() throws InterruptedException, ExecutionException {
 105     // we set batch to 2 and max result size to 1, then server will only returns one result per call
 106     // but we should get 2 + 1 for every row.
 107     List<Result> results =
 108       TABLE.scanAll(new Scan().setBatch(2).setMaxResultSize(1).setReversed(true)).get();
 109     assertEquals(2 * COUNT, results.size());
 110     for (int i = 0; i < COUNT; i++) {
 111       int row = COUNT - i - 1;
 112       Result firstTwo = results.get(2 * i);
 113       assertEquals(String.format("%02d", row), Bytes.toString(firstTwo.getRow()));
 114       assertEquals(2, firstTwo.size());
 115       assertEquals(row, Bytes.toInt(firstTwo.getValue(FAMILY, CQS[0])));
 116       assertEquals(2 * row, Bytes.toInt(firstTwo.getValue(FAMILY, CQS[1])));
 117
 118       Result secondOne = results.get(2 * i + 1);
 119       assertEquals(String.format("%02d", row), Bytes.toString(secondOne.getRow()));
 120       assertEquals(1, secondOne.size());
 121       assertEquals(3 * row, Bytes.toInt(secondOne.getValue(FAMILY, CQS[2])));
 122     }
 123   }
 124 }