hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDataBlockEncodingTool.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.regionserver;
  19
  20 import java.io.IOException;
  21
  22 import org.apache.hadoop.conf.Configuration;
  23 import org.apache.hadoop.fs.FileSystem;
  24 import org.apache.hadoop.fs.Path;
  25 import org.apache.hadoop.hbase.ArrayBackedTag;
  26 import org.apache.hadoop.hbase.HBaseClassTestRule;
  27 import org.apache.hadoop.hbase.HBaseConfiguration;
  28 import org.apache.hadoop.hbase.HBaseTestingUtil;
  29 import org.apache.hadoop.hbase.KeyValue;
  30 import org.apache.hadoop.hbase.Tag;
  31 import org.apache.hadoop.hbase.io.compress.Compression;
  32 import org.apache.hadoop.hbase.io.hfile.HFileContext;
  33 import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;
  34 import org.apache.hadoop.hbase.testclassification.MiscTests;
  35 import org.apache.hadoop.hbase.testclassification.SmallTests;
  36 import org.apache.hadoop.hbase.util.Bytes;
  37 import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
  38 import org.junit.Before;
  39 import org.junit.ClassRule;
  40 import org.junit.Test;
  41 import org.junit.experimental.categories.Category;
  42
  43 /**
  44  *  Test DataBlockEncodingTool.
  45  */
  46 @Category({MiscTests.class, SmallTests.class})
  47 public class TestDataBlockEncodingTool {
  48
  49   @ClassRule
  50   public static final HBaseClassTestRule CLASS_RULE =
  51       HBaseClassTestRule.forClass(TestDataBlockEncodingTool.class);
  52
  53   private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();
  54   private static final String ROOT_DIR =
  55       TEST_UTIL.getDataTestDir("TestDataBlockEncodingTool").toString();
  56   private static final Configuration conf = TEST_UTIL.getConfiguration();
  57   private static FileSystem fs;
  58   private static StoreFileWriter sfw;
  59
  60   @Before
  61   public void setUp() throws IOException {
  62     fs = TEST_UTIL.getTestFileSystem();
  63   }
  64
  65   private void testHFile(String fileName, boolean useTags, boolean allTags) throws IOException {
  66     Path path = new Path(ROOT_DIR, fileName);
  67     try {
  68       createHFileWithTags(path, useTags, allTags);
  69       testDataBlockingTool(path);
  70     } finally {
  71       if (fs.exists(path)) {
  72         fs.delete(path, false);
  73       }
  74     }
  75   }
  76
  77   private void createHFileWithTags(Path path, boolean useTags, boolean allTags) throws IOException {
  78     HFileContext meta = new HFileContextBuilder()
  79         .withBlockSize(64 * 1024)
  80         .withIncludesTags(useTags).build();
  81     sfw =
  82         new StoreFileWriter.Builder(conf, fs)
  83             .withFilePath(path)
  84             .withFileContext(meta).build();
  85     long now = EnvironmentEdgeManager.currentTime();
  86     byte[] FAMILY = Bytes.toBytes("cf");
  87     byte[] QUALIFIER = Bytes.toBytes("q");
  88     try {
  89       for (char d = 'a'; d <= 'z'; d++) {
  90         for (char e = 'a'; e <= 'z'; e++) {
  91           byte[] b = new byte[] { (byte) d, (byte) e };
  92           KeyValue kv;
  93           if (useTags) {
  94             if (allTags) {
  95               // Write cells with tags to HFile.
  96               Tag[] tags = new Tag[]{
  97                 new ArrayBackedTag((byte) 0, Bytes.toString(b)),
  98                 new ArrayBackedTag((byte) 0, Bytes.toString(b))};
  99               kv = new KeyValue(b, FAMILY, QUALIFIER, now, b, tags);
 100             } else {
 101               // Write half cells with tags and half without tags to HFile.
 102               if ((e - 'a') % 2 == 0) {
 103                 kv = new KeyValue(b, FAMILY, QUALIFIER, now, b);
 104               } else {
 105                 Tag[] tags = new Tag[]{
 106                   new ArrayBackedTag((byte) 0, Bytes.toString(b)),
 107                   new ArrayBackedTag((byte) 0, Bytes.toString(b))};
 108                 kv = new KeyValue(b, FAMILY, QUALIFIER, now, b, tags);
 109               }
 110             }
 111           } else {
 112             // Write cells without tags to HFile.
 113             kv = new KeyValue(b, FAMILY, QUALIFIER, now, b);
 114           }
 115           sfw.append(kv);
 116         }
 117       }
 118       sfw.appendMetadata(0, false);
 119     } finally {
 120       sfw.close();
 121     }
 122   }
 123
 124   private static void testDataBlockingTool(Path path) throws IOException {
 125     Configuration conf = HBaseConfiguration.create();
 126     int maxKV = Integer.MAX_VALUE;
 127     boolean doVerify = true;
 128     boolean doBenchmark = true;
 129     String testHFilePath = path.toString();
 130     DataBlockEncodingTool.testCodecs(conf, maxKV, testHFilePath,
 131         Compression.Algorithm.GZ.getName(), doBenchmark, doVerify);
 132   }
 133
 134   @Test
 135   public void testHFileAllCellsWithTags() throws IOException {
 136     testHFile("1234567890", true, true);
 137   }
 138
 139   @Test
 140   public void testHFileAllCellsWithoutTags() throws IOException {
 141     testHFile("1234567089", false, false);
 142   }
 143
 144   @Test
 145   public void testHFileHalfCellsWithTags() throws IOException {
 146     testHFile("1234560789", true, false);
 147   }
 148 }