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.mob;
019
020import static org.junit.jupiter.api.Assertions.assertNotNull;
021import static org.junit.jupiter.api.Assertions.assertNull;
022import static org.junit.jupiter.api.Assertions.assertTrue;
023
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.fs.FileSystem;
026import org.apache.hadoop.fs.Path;
027import org.apache.hadoop.hbase.Cell;
028import org.apache.hadoop.hbase.HBaseTestingUtil;
029import org.apache.hadoop.hbase.KeyValue;
030import org.apache.hadoop.hbase.KeyValue.Type;
031import org.apache.hadoop.hbase.io.hfile.CacheConfig;
032import org.apache.hadoop.hbase.io.hfile.HFileContext;
033import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;
034import org.apache.hadoop.hbase.regionserver.BloomType;
035import org.apache.hadoop.hbase.regionserver.HStoreFile;
036import org.apache.hadoop.hbase.regionserver.StoreFileInfo;
037import org.apache.hadoop.hbase.regionserver.StoreFileScanner;
038import org.apache.hadoop.hbase.regionserver.StoreFileWriter;
039import org.apache.hadoop.hbase.testclassification.SmallTests;
040import org.apache.hadoop.hbase.util.Bytes;
041import org.junit.jupiter.api.Tag;
042import org.junit.jupiter.api.Test;
043import org.junit.jupiter.api.TestInfo;
044
045@Tag(SmallTests.TAG)
046public class TestMobFile {
047
048  private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();
049  private Configuration conf = TEST_UTIL.getConfiguration();
050  private CacheConfig cacheConf = new CacheConfig(conf);
051
052  @Test
053  public void testReadKeyValue(TestInfo testInfo) throws Exception {
054    Path testDir = TEST_UTIL.getDataTestDir();
055    FileSystem fs = testDir.getFileSystem(conf);
056    HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build();
057    StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, fs).withOutputDir(testDir)
058      .withFileContext(meta).build();
059    String caseName = testInfo.getTestMethod().get().getName();
060    MobTestUtil.writeStoreFile(writer, caseName);
061
062    StoreFileInfo storeFileInfo =
063      StoreFileInfo.createStoreFileInfoForHFile(conf, fs, writer.getPath(), true);
064    MobFile mobFile = new MobFile(new HStoreFile(storeFileInfo, BloomType.NONE, cacheConf));
065    byte[] family = Bytes.toBytes(caseName);
066    byte[] qualify = Bytes.toBytes(caseName);
067
068    // Test the start key
069    byte[] startKey = Bytes.toBytes("aa"); // The start key bytes
070    KeyValue expectedKey =
071      new KeyValue(startKey, family, qualify, Long.MAX_VALUE, Type.Put, startKey);
072    KeyValue seekKey = expectedKey.createKeyOnly(false);
073    Cell cell = mobFile.readCell(seekKey, false).getCell();
074    MobTestUtil.assertCellEquals(expectedKey, cell);
075
076    // Test the end key
077    byte[] endKey = Bytes.toBytes("zz"); // The end key bytes
078    expectedKey = new KeyValue(endKey, family, qualify, Long.MAX_VALUE, Type.Put, endKey);
079    seekKey = expectedKey.createKeyOnly(false);
080    cell = mobFile.readCell(seekKey, false).getCell();
081    MobTestUtil.assertCellEquals(expectedKey, cell);
082
083    // Test the random key
084    byte[] randomKey = Bytes.toBytes(MobTestUtil.generateRandomString(2));
085    expectedKey = new KeyValue(randomKey, family, qualify, Long.MAX_VALUE, Type.Put, randomKey);
086    seekKey = expectedKey.createKeyOnly(false);
087    cell = mobFile.readCell(seekKey, false).getCell();
088    MobTestUtil.assertCellEquals(expectedKey, cell);
089
090    // Test the key which is less than the start key
091    byte[] lowerKey = Bytes.toBytes("a1"); // Smaller than "aa"
092    expectedKey = new KeyValue(startKey, family, qualify, Long.MAX_VALUE, Type.Put, startKey);
093    seekKey = new KeyValue(lowerKey, family, qualify, Long.MAX_VALUE, Type.Put, lowerKey);
094    cell = mobFile.readCell(seekKey, false).getCell();
095    MobTestUtil.assertCellEquals(expectedKey, cell);
096
097    // Test the key which is more than the end key
098    byte[] upperKey = Bytes.toBytes("z{"); // Bigger than "zz"
099    seekKey = new KeyValue(upperKey, family, qualify, Long.MAX_VALUE, Type.Put, upperKey);
100    assertNull(mobFile.readCell(seekKey, false));
101  }
102
103  @Test
104  public void testGetScanner(TestInfo testInfo) throws Exception {
105    Path testDir = TEST_UTIL.getDataTestDir();
106    FileSystem fs = testDir.getFileSystem(conf);
107    HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build();
108    StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, fs).withOutputDir(testDir)
109      .withFileContext(meta).build();
110    MobTestUtil.writeStoreFile(writer, testInfo.getTestMethod().get().getName());
111
112    StoreFileInfo storeFileInfo =
113      StoreFileInfo.createStoreFileInfoForHFile(conf, fs, writer.getPath(), true);
114    MobFile mobFile = new MobFile(new HStoreFile(storeFileInfo, BloomType.NONE, cacheConf));
115    assertNotNull(mobFile.getScanner());
116    assertTrue(mobFile.getScanner() instanceof StoreFileScanner);
117  }
118}