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.client;
019
020import static org.junit.Assert.assertArrayEquals;
021
022import java.io.IOException;
023import java.util.ArrayList;
024import java.util.List;
025import org.apache.hadoop.hbase.Cell;
026import org.apache.hadoop.hbase.HBaseClassTestRule;
027import org.apache.hadoop.hbase.HBaseTestingUtil;
028import org.apache.hadoop.hbase.KeyValue;
029import org.apache.hadoop.hbase.TableName;
030import org.apache.hadoop.hbase.testclassification.ClientTests;
031import org.apache.hadoop.hbase.testclassification.MediumTests;
032import org.junit.AfterClass;
033import org.junit.BeforeClass;
034import org.junit.ClassRule;
035import org.junit.Test;
036import org.junit.experimental.categories.Category;
037
038/**
039 * Testcase for HBASE-21032, where use the wrong readType from a Scan instance which is actually a
040 * get scan and cause returning only 1 cell per rpc call.
041 */
042@Category({ ClientTests.class, MediumTests.class })
043public class TestGetScanColumnsWithNewVersionBehavior {
044
045  @ClassRule
046  public static final HBaseClassTestRule CLASS_RULE =
047    HBaseClassTestRule.forClass(TestGetScanColumnsWithNewVersionBehavior.class);
048
049  private final static HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();
050  private static final TableName TABLE = TableName.valueOf("table");
051  private static final byte[] CF = { 'c', 'f' };
052  private static final byte[] ROW = { 'r', 'o', 'w' };
053  private static final byte[] COLA = { 'a' };
054  private static final byte[] COLB = { 'b' };
055  private static final byte[] COLC = { 'c' };
056  private static final long TS = 42;
057
058  @BeforeClass
059  public static void setUp() throws Exception {
060    TEST_UTIL.startMiniCluster(1);
061    ColumnFamilyDescriptor cd =
062      ColumnFamilyDescriptorBuilder.newBuilder(CF).setNewVersionBehavior(true).build();
063    TEST_UTIL.createTable(TableDescriptorBuilder.newBuilder(TABLE).setColumnFamily(cd).build(),
064      null);
065  }
066
067  @AfterClass
068  public static void tearDown() throws Exception {
069    TEST_UTIL.shutdownMiniCluster();
070  }
071
072  @Test
073  public void test() throws IOException {
074    try (Table t = TEST_UTIL.getConnection().getTable(TABLE)) {
075      Cell[] expected = new Cell[2];
076      expected[0] = new KeyValue(ROW, CF, COLA, TS, COLA);
077      expected[1] = new KeyValue(ROW, CF, COLC, TS, COLC);
078
079      Put p = new Put(ROW);
080      p.addColumn(CF, COLA, TS, COLA);
081      p.addColumn(CF, COLB, TS, COLB);
082      p.addColumn(CF, COLC, TS, COLC);
083      t.put(p);
084
085      // check get request
086      Get get = new Get(ROW);
087      get.addColumn(CF, COLA);
088      get.addColumn(CF, COLC);
089      Result getResult = t.get(get);
090      assertArrayEquals(expected, getResult.rawCells());
091
092      // check scan request
093      Scan scan = new Scan().withStartRow(ROW);
094      scan.addColumn(CF, COLA);
095      scan.addColumn(CF, COLC);
096      ResultScanner scanner = t.getScanner(scan);
097      List scanResult = new ArrayList<Cell>();
098      for (Result result = scanner.next(); (result != null); result = scanner.next()) {
099        scanResult.addAll(result.listCells());
100      }
101      assertArrayEquals(expected, scanResult.toArray(new Cell[scanResult.size()]));
102    }
103  }
104}