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From jmhs...@apache.org
Subject [10/50] [abbrv] hbase git commit: HBASE-15060 Cull TestHFileV2 and HFileWriterFactory
Date Thu, 14 Jan 2016 17:08:24 GMT
HBASE-15060 Cull TestHFileV2 and HFileWriterFactory


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/92abf8ac
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/92abf8ac
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/92abf8ac

Branch: refs/heads/trunk
Commit: 92abf8ac5743849d4c32d6abf8fd33f161bab249
Parents: c1b6d47
Author: Jonathan M Hsieh <jmhsieh@apache.org>
Authored: Tue Dec 29 17:41:04 2015 -0800
Committer: Jonathan M Hsieh <jmhsieh@apache.org>
Committed: Wed Dec 30 13:21:54 2015 -0800

----------------------------------------------------------------------
 .../org/apache/hadoop/hbase/io/hfile/HFile.java |  10 +-
 .../hbase/io/hfile/HFileWriterFactory.java      |  40 ---
 .../hbase/io/hfile/RandomKeyValueUtil.java      | 104 ++++++
 .../hadoop/hbase/io/hfile/TestCacheOnWrite.java |   6 +-
 .../hbase/io/hfile/TestHFileBlockIndex.java     |  10 +-
 .../TestHFileInlineToRootChunkConversion.java   |   2 +-
 .../hbase/io/hfile/TestHFileWriterV2.java       | 342 -------------------
 .../hbase/io/hfile/TestHFileWriterV3.java       |   9 +-
 .../hfile/TestLazyDataBlockDecompression.java   |   6 +-
 .../hadoop/hbase/io/hfile/TestPrefetch.java     |   4 +-
 .../hfile/TestSeekBeforeWithInlineBlocks.java   |   6 +-
 .../regionserver/TestCacheOnWriteInSchema.java  |   6 +-
 .../regionserver/TestCompoundBloomFilter.java   |  12 +-
 13 files changed, 137 insertions(+), 420 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
index 35b232a..669ad92 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
@@ -241,7 +241,7 @@ public class HFile {
    * This variety of ways to construct writers is used throughout the code, and
    * we want to be able to swap writer implementations.
    */
-  public static abstract class WriterFactory {
+  public static class WriterFactory {
     protected final Configuration conf;
     protected final CacheConfig cacheConf;
     protected FileSystem fs;
@@ -309,12 +309,8 @@ public class HFile {
           else if (LOG.isDebugEnabled()) LOG.debug("Unable to set drop behind on " + path);
         }
       }
-      return createWriter(fs, path, ostream,
-                   comparator, fileContext);
+      return new HFileWriterImpl(conf, cacheConf, path, ostream, comparator, fileContext);
     }
-
-    protected abstract Writer createWriter(FileSystem fs, Path path, FSDataOutputStream ostream,
-        CellComparator comparator, HFileContext fileContext) throws IOException;
   }
 
   /** The configuration key for HFile version to use for new files */
@@ -351,7 +347,7 @@ public class HFile {
         " hfiles only (but it can read v2 files without having to update hfile.format.version
" +
         "in hbase-site.xml)");
     case 3:
-      return new HFileWriterFactory(conf, cacheConf);
+      return new HFile.WriterFactory(conf, cacheConf);
     default:
       throw new IllegalArgumentException("Cannot create writer for HFile " +
           "format version " + version);

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterFactory.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterFactory.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterFactory.java
deleted file mode 100644
index 92eb760..0000000
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileWriterFactory.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
- * Copyright The Apache Software Foundation
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with this
- * work for additional information regarding copyright ownership. The ASF
- * licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitationsME
- * under the License.
- */
-package org.apache.hadoop.hbase.io.hfile;
-
-import java.io.IOException;
-
-import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.FSDataOutputStream;
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.CellComparator;
-
-public class HFileWriterFactory extends HFile.WriterFactory {
-  HFileWriterFactory(Configuration conf, CacheConfig cacheConf) {
-    super(conf, cacheConf);
-  }
-
-  @Override
-  public HFile.Writer createWriter(FileSystem fs, Path path, FSDataOutputStream ostream,
-      CellComparator comparator, HFileContext context)
-  throws IOException {
-    return new HFileWriterImpl(conf, cacheConf, path, ostream, comparator, context);
-  }
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/RandomKeyValueUtil.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/RandomKeyValueUtil.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/RandomKeyValueUtil.java
new file mode 100644
index 0000000..9507345
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/RandomKeyValueUtil.java
@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.io.hfile;
+
+import org.apache.hadoop.hbase.KeyValue;
+
+import java.util.Random;
+
+/**
+ * These helper methods generate random byte[]'s data for KeyValues
+ */
+public class RandomKeyValueUtil {
+  public static final String COLUMN_FAMILY_NAME = "_-myColumnFamily-_";
+  private static final int MIN_ROW_OR_QUALIFIER_LENGTH = 64;
+  private static final int MAX_ROW_OR_QUALIFIER_LENGTH = 128;
+
+  public static final char randomReadableChar(Random rand) {
+    int i = rand.nextInt(26 * 2 + 10 + 1);
+    if (i < 26)
+      return (char) ('A' + i);
+    i -= 26;
+
+    if (i < 26)
+      return (char) ('a' + i);
+    i -= 26;
+
+    if (i < 10)
+      return (char) ('0' + i);
+    i -= 10;
+
+    assert i == 0;
+    return '_';
+  }
+
+  public static KeyValue randomKeyValue(Random rand) {
+    return new KeyValue(randomRowOrQualifier(rand),
+        COLUMN_FAMILY_NAME.getBytes(), randomRowOrQualifier(rand),
+        randomValue(rand));
+  }
+
+  public static byte[] randomRowOrQualifier(Random rand) {
+    StringBuilder field = new StringBuilder();
+    int fieldLen = MIN_ROW_OR_QUALIFIER_LENGTH
+        + rand.nextInt(MAX_ROW_OR_QUALIFIER_LENGTH
+        - MIN_ROW_OR_QUALIFIER_LENGTH + 1);
+    for (int i = 0; i < fieldLen; ++i)
+      field.append(randomReadableChar(rand));
+    return field.toString().getBytes();
+  }
+
+  public static byte[] randomValue(Random rand) {
+    StringBuilder v = new StringBuilder();
+    for (int j = 0; j < 1 + rand.nextInt(2000); ++j) {
+      v.append((char) (32 + rand.nextInt(95)));
+    }
+
+    byte[] valueBytes = v.toString().getBytes();
+    return valueBytes;
+  }
+
+  /**
+   * Generates a random key that is guaranteed to increase as the given index i
+   * increases. The result consists of a prefix, which is a deterministic
+   * increasing function of i, and a random suffix.
+   *
+   * @param rand
+   *          random number generator to use
+   * @param i
+   * @return
+   */
+  public static byte[] randomOrderedKey(Random rand, int i) {
+    StringBuilder k = new StringBuilder();
+
+    // The fixed-length lexicographically increasing part of the key.
+    for (int bitIndex = 31; bitIndex >= 0; --bitIndex) {
+      if ((i & (1 << bitIndex)) == 0)
+        k.append("a");
+      else
+        k.append("b");
+    }
+
+    // A random-length random suffix of the key.
+    for (int j = 0; j < rand.nextInt(50); ++j)
+      k.append(randomReadableChar(rand));
+
+    byte[] keyBytes = k.toString().getBytes();
+    return keyBytes;
+  }
+}

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
index 2c957ef..ccf59a4 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
@@ -380,9 +380,9 @@ public class TestCacheOnWrite {
         .withBloomType(BLOOM_TYPE).withMaxKeyCount(NUM_KV).build();
     byte[] cf = Bytes.toBytes("fam");
     for (int i = 0; i < NUM_KV; ++i) {
-      byte[] row = TestHFileWriterV2.randomOrderedKey(rand, i);
-      byte[] qualifier = TestHFileWriterV2.randomRowOrQualifier(rand);
-      byte[] value = TestHFileWriterV2.randomValue(rand);
+      byte[] row = RandomKeyValueUtil.randomOrderedKey(rand, i);
+      byte[] qualifier = RandomKeyValueUtil.randomRowOrQualifier(rand);
+      byte[] value = RandomKeyValueUtil.randomValue(rand);
       KeyValue kv;
       if(useTags) {
         Tag t = new Tag((byte) 1, "visibility");

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
index 8a843a3..687d3cd 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlockIndex.java
@@ -280,7 +280,7 @@ public class TestHFileBlockIndex {
       byte[] qualifier = Bytes.toBytes("q");
       for (int j = 0; j < 16; ++j) {
         byte[] k =
-            new KeyValue(TestHFileWriterV2.randomOrderedKey(rand, i * 16 + j), family, qualifier,
+            new KeyValue(RandomKeyValueUtil.randomOrderedKey(rand, i * 16 + j), family, qualifier,
                 EnvironmentEdgeManager.currentTime(), KeyValue.Type.Put).getKey();
         keys.add(k);
         if (j == 8) {
@@ -348,7 +348,7 @@ public class TestHFileBlockIndex {
     int secondaryIndexEntries[] = new int[numTotalKeys];
 
     for (int i = 0; i < numTotalKeys; ++i) {
-      byte[] k = TestHFileWriterV2.randomOrderedKey(rand, i * 2);
+      byte[] k = RandomKeyValueUtil.randomOrderedKey(rand, i * 2);
       KeyValue cell = new KeyValue(k, Bytes.toBytes("f"), Bytes.toBytes("q"), 
           Bytes.toBytes("val"));
       //KeyValue cell = new KeyValue.KeyOnlyKeyValue(k, 0, k.length);
@@ -473,7 +473,7 @@ public class TestHFileBlockIndex {
       c.writeRoot(dos);
       assertEquals(c.getRootSize(), dos.size());
 
-      byte[] k = TestHFileWriterV2.randomOrderedKey(rand, i);
+      byte[] k = RandomKeyValueUtil.randomOrderedKey(rand, i);
       numSubEntries += rand.nextInt(5) + 1;
       keys.add(k);
       c.add(k, getDummyFileOffset(i), getDummyOnDiskSize(i), numSubEntries);
@@ -556,12 +556,12 @@ public class TestHFileBlockIndex {
         byte[] family = Bytes.toBytes("f");
         byte[] qualifier = Bytes.toBytes("q");
         for (int i = 0; i < NUM_KV; ++i) {
-          byte[] row = TestHFileWriterV2.randomOrderedKey(rand, i);
+          byte[] row = RandomKeyValueUtil.randomOrderedKey(rand, i);
 
           // Key will be interpreted by KeyValue.KEY_COMPARATOR
           KeyValue kv =
               new KeyValue(row, family, qualifier, EnvironmentEdgeManager.currentTime(),
-                  TestHFileWriterV2.randomValue(rand));
+                  RandomKeyValueUtil.randomValue(rand));
           byte[] k = kv.getKey();
           writer.append(kv);
           keys[i] = k;

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileInlineToRootChunkConversion.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileInlineToRootChunkConversion.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileInlineToRootChunkConversion.java
index ab811f1..af4f2b8 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileInlineToRootChunkConversion.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileInlineToRootChunkConversion.java
@@ -55,7 +55,7 @@ public class TestHFileInlineToRootChunkConversion {
     CacheConfig cacheConf = new CacheConfig(conf);
     conf.setInt(HFileBlockIndex.MAX_CHUNK_SIZE_KEY, maxChunkSize); 
     HFileContext context = new HFileContextBuilder().withBlockSize(16).build();
-    HFile.Writer hfw = new HFileWriterFactory(conf, cacheConf)
+    HFile.Writer hfw = new HFile.WriterFactory(conf, cacheConf)
             .withFileContext(context)
             .withPath(fs, hfPath).create();
     List<byte[]> keys = new ArrayList<byte[]>();

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV2.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV2.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV2.java
deleted file mode 100644
index 975073a..0000000
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV2.java
+++ /dev/null
@@ -1,342 +0,0 @@
-/**
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.hbase.io.hfile;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-import java.io.ByteArrayInputStream;
-import java.io.DataInputStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Random;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.FSDataInputStream;
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.Cell;
-import org.apache.hadoop.hbase.CellComparator;
-import org.apache.hadoop.hbase.HBaseTestingUtility;
-import org.apache.hadoop.hbase.KeyValue;
-import org.apache.hadoop.hbase.io.compress.Compression;
-import org.apache.hadoop.hbase.io.compress.Compression.Algorithm;
-import org.apache.hadoop.hbase.io.hfile.HFile.FileInfo;
-import org.apache.hadoop.hbase.nio.ByteBuff;
-import org.apache.hadoop.hbase.testclassification.IOTests;
-import org.apache.hadoop.hbase.testclassification.SmallTests;
-import org.apache.hadoop.hbase.util.Bytes;
-import org.apache.hadoop.hbase.util.Writables;
-import org.apache.hadoop.io.Text;
-import org.apache.hadoop.io.WritableUtils;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.experimental.categories.Category;
-
-/**
- * Testing writing a version 2 {@link HFile}. This is a low-level test written
- * during the development of {@link HFileWriterImpl}.
- */
-@Category({IOTests.class, SmallTests.class})
-public class TestHFileWriterV2 {
-
-  private static final Log LOG = LogFactory.getLog(TestHFileWriterV2.class);
-
-  private static final HBaseTestingUtility TEST_UTIL =
-      new HBaseTestingUtility();
-
-  private Configuration conf;
-  private FileSystem fs;
-
-  @Before
-  public void setUp() throws IOException {
-    conf = TEST_UTIL.getConfiguration();
-    fs = FileSystem.get(conf);
-  }
-
-  @Test
-  public void testHFileFormatV2() throws IOException {
-    Path hfilePath = new Path(TEST_UTIL.getDataTestDir(), "testHFileFormatV2");
-    final Compression.Algorithm compressAlgo = Compression.Algorithm.GZ;
-    final int entryCount = 10000;
-    writeDataAndReadFromHFile(hfilePath, compressAlgo, entryCount, false);
-  }
-
-  @Test
-  public void testMidKeyInHFile() throws IOException{
-    Path hfilePath = new Path(TEST_UTIL.getDataTestDir(),
-    "testMidKeyInHFile");
-    Compression.Algorithm compressAlgo = Compression.Algorithm.NONE;
-    int entryCount = 50000;
-    writeDataAndReadFromHFile(hfilePath, compressAlgo, entryCount, true);
-  }
-
-  private void writeDataAndReadFromHFile(Path hfilePath,
-      Algorithm compressAlgo, int entryCount, boolean findMidKey) throws IOException {
-
-    HFileContext context = new HFileContextBuilder()
-                           .withBlockSize(4096)
-                           .withCompression(compressAlgo)
-                           .build();
-    HFile.Writer writer = new HFileWriterFactory(conf, new CacheConfig(conf))
-            .withPath(fs, hfilePath)
-            .withFileContext(context)
-            .create();
-
-    Random rand = new Random(9713312); // Just a fixed seed.
-    List<KeyValue> keyValues = new ArrayList<KeyValue>(entryCount);
-
-    for (int i = 0; i < entryCount; ++i) {
-      byte[] keyBytes = randomOrderedKey(rand, i);
-
-      // A random-length random value.
-      byte[] valueBytes = randomValue(rand);
-      KeyValue keyValue = new KeyValue(keyBytes, null, null, valueBytes);
-      writer.append(keyValue);
-      keyValues.add(keyValue);
-    }
-
-    // Add in an arbitrary order. They will be sorted lexicographically by
-    // the key.
-    writer.appendMetaBlock("CAPITAL_OF_USA", new Text("Washington, D.C."));
-    writer.appendMetaBlock("CAPITAL_OF_RUSSIA", new Text("Moscow"));
-    writer.appendMetaBlock("CAPITAL_OF_FRANCE", new Text("Paris"));
-
-    writer.close();
-
-
-    FSDataInputStream fsdis = fs.open(hfilePath);
-
-    // A "manual" version of a new-format HFile reader. This unit test was
-    // written before the V2 reader was fully implemented.
-
-    long fileSize = fs.getFileStatus(hfilePath).getLen();
-    FixedFileTrailer trailer =
-        FixedFileTrailer.readFromStream(fsdis, fileSize);
-
-    assertEquals(entryCount, trailer.getEntryCount());
-
-    HFileContext meta = new HFileContextBuilder()
-                        .withHBaseCheckSum(true)
-                        .withIncludesMvcc(false)
-                        .withIncludesTags(false)
-                        .withCompression(compressAlgo)
-                        .build();
-
-    HFileBlock.FSReader blockReader = new HFileBlock.FSReaderImpl(fsdis, fileSize, meta);
-    // Comparator class name is stored in the trailer in version 2.
-    CellComparator comparator = trailer.createComparator();
-    HFileBlockIndex.BlockIndexReader dataBlockIndexReader =
-        new HFileBlockIndex.CellBasedKeyBlockIndexReader(comparator,
-            trailer.getNumDataIndexLevels());
-    HFileBlockIndex.BlockIndexReader metaBlockIndexReader =
-        new HFileBlockIndex.ByteArrayKeyBlockIndexReader(1);
-
-    HFileBlock.BlockIterator blockIter = blockReader.blockRange(
-        trailer.getLoadOnOpenDataOffset(),
-        fileSize - trailer.getTrailerSize());
-    // Data index. We also read statistics about the block index written after
-    // the root level.
-    dataBlockIndexReader.readMultiLevelIndexRoot(
-        blockIter.nextBlockWithBlockType(BlockType.ROOT_INDEX),
-        trailer.getDataIndexCount());
-
-    if (findMidKey) {
-      Cell midkey = dataBlockIndexReader.midkey();
-      assertNotNull("Midkey should not be null", midkey);
-    }
-
-    // Meta index.
-    metaBlockIndexReader.readRootIndex(
-        blockIter.nextBlockWithBlockType(BlockType.ROOT_INDEX)
-          .getByteStream(), trailer.getMetaIndexCount());
-    // File info
-    FileInfo fileInfo = new FileInfo();
-    fileInfo.read(blockIter.nextBlockWithBlockType(BlockType.FILE_INFO).getByteStream());
-    byte [] keyValueFormatVersion = fileInfo.get(HFileWriterImpl.KEY_VALUE_VERSION);
-    boolean includeMemstoreTS = keyValueFormatVersion != null &&
-        Bytes.toInt(keyValueFormatVersion) > 0;
-
-    // Counters for the number of key/value pairs and the number of blocks
-    int entriesRead = 0;
-    int blocksRead = 0;
-    long memstoreTS = 0;
-
-    // Scan blocks the way the reader would scan them
-    fsdis.seek(0);
-    long curBlockPos = 0;
-    while (curBlockPos <= trailer.getLastDataBlockOffset()) {
-      HFileBlock block = blockReader.readBlockData(curBlockPos, -1, -1, false);
-      assertEquals(BlockType.DATA, block.getBlockType());
-      if (meta.isCompressedOrEncrypted()) {
-        assertFalse(block.isUnpacked());
-        block = block.unpack(meta, blockReader);
-      }
-      ByteBuff buf = block.getBufferWithoutHeader();
-      while (buf.hasRemaining()) {
-        int keyLen = buf.getInt();
-        int valueLen = buf.getInt();
-
-        byte[] key = new byte[keyLen];
-        buf.get(key);
-
-        byte[] value = new byte[valueLen];
-        buf.get(value);
-
-        if (includeMemstoreTS) {
-          ByteArrayInputStream byte_input = new ByteArrayInputStream(buf.array(),
-                               buf.arrayOffset() + buf.position(), buf.remaining());
-          DataInputStream data_input = new DataInputStream(byte_input);
-
-          memstoreTS = WritableUtils.readVLong(data_input);
-          buf.position(buf.position() + WritableUtils.getVIntSize(memstoreTS));
-        }
-
-        // A brute-force check to see that all keys and values are correct.
-        KeyValue kv = keyValues.get(entriesRead);
-        assertTrue(Bytes.compareTo(key, kv.getKey()) == 0);
-        assertTrue(Bytes.compareTo(value, 0, value.length, kv.getValueArray(), kv.getValueOffset(),
-          kv.getValueLength()) == 0);
-
-        ++entriesRead;
-      }
-      ++blocksRead;
-      curBlockPos += block.getOnDiskSizeWithHeader();
-    }
-    LOG.info("Finished reading: entries=" + entriesRead + ", blocksRead="
-        + blocksRead);
-    assertEquals(entryCount, entriesRead);
-
-    // Meta blocks. We can scan until the load-on-open data offset (which is
-    // the root block index offset in version 2) because we are not testing
-    // intermediate-level index blocks here.
-
-    int metaCounter = 0;
-    while (fsdis.getPos() < trailer.getLoadOnOpenDataOffset()) {
-      LOG.info("Current offset: " + fsdis.getPos() + ", scanning until " +
-          trailer.getLoadOnOpenDataOffset());
-      HFileBlock block = blockReader.readBlockData(curBlockPos, -1, -1, false)
-        .unpack(meta, blockReader);
-      assertEquals(BlockType.META, block.getBlockType());
-      Text t = new Text();
-      ByteBuff buf = block.getBufferWithoutHeader();
-      if (Writables.getWritable(buf.array(), buf.arrayOffset(), buf.limit(), t) == null)
{
-        throw new IOException("Failed to deserialize block " + this + " into a " + t.getClass().getSimpleName());
-      }
-      Text expectedText =
-          (metaCounter == 0 ? new Text("Paris") : metaCounter == 1 ? new Text(
-              "Moscow") : new Text("Washington, D.C."));
-      assertEquals(expectedText, t);
-      LOG.info("Read meta block data: " + t);
-      ++metaCounter;
-      curBlockPos += block.getOnDiskSizeWithHeader();
-    }
-
-    fsdis.close();
-  }
-
-
-  // Static stuff used by various HFile v2 unit tests
-
-  public static final String COLUMN_FAMILY_NAME = "_-myColumnFamily-_";
-  private static final int MIN_ROW_OR_QUALIFIER_LENGTH = 64;
-  private static final int MAX_ROW_OR_QUALIFIER_LENGTH = 128;
-
-  /**
-   * Generates a random key that is guaranteed to increase as the given index i
-   * increases. The result consists of a prefix, which is a deterministic
-   * increasing function of i, and a random suffix.
-   *
-   * @param rand
-   *          random number generator to use
-   * @param i
-   * @return
-   */
-  public static byte[] randomOrderedKey(Random rand, int i) {
-    StringBuilder k = new StringBuilder();
-
-    // The fixed-length lexicographically increasing part of the key.
-    for (int bitIndex = 31; bitIndex >= 0; --bitIndex) {
-      if ((i & (1 << bitIndex)) == 0)
-        k.append("a");
-      else
-        k.append("b");
-    }
-
-    // A random-length random suffix of the key.
-    for (int j = 0; j < rand.nextInt(50); ++j)
-      k.append(randomReadableChar(rand));
-
-    byte[] keyBytes = k.toString().getBytes();
-    return keyBytes;
-  }
-
-  public static byte[] randomValue(Random rand) {
-    StringBuilder v = new StringBuilder();
-    for (int j = 0; j < 1 + rand.nextInt(2000); ++j) {
-      v.append((char) (32 + rand.nextInt(95)));
-    }
-
-    byte[] valueBytes = v.toString().getBytes();
-    return valueBytes;
-  }
-
-  public static final char randomReadableChar(Random rand) {
-    int i = rand.nextInt(26 * 2 + 10 + 1);
-    if (i < 26)
-      return (char) ('A' + i);
-    i -= 26;
-
-    if (i < 26)
-      return (char) ('a' + i);
-    i -= 26;
-
-    if (i < 10)
-      return (char) ('0' + i);
-    i -= 10;
-
-    assert i == 0;
-    return '_';
-  }
-
-  public static byte[] randomRowOrQualifier(Random rand) {
-    StringBuilder field = new StringBuilder();
-    int fieldLen = MIN_ROW_OR_QUALIFIER_LENGTH
-        + rand.nextInt(MAX_ROW_OR_QUALIFIER_LENGTH
-            - MIN_ROW_OR_QUALIFIER_LENGTH + 1);
-    for (int i = 0; i < fieldLen; ++i)
-      field.append(randomReadableChar(rand));
-    return field.toString().getBytes();
-  }
-
-  public static KeyValue randomKeyValue(Random rand) {
-    return new KeyValue(randomRowOrQualifier(rand),
-        COLUMN_FAMILY_NAME.getBytes(), randomRowOrQualifier(rand),
-        randomValue(rand));
-  }
-
-
-}
-

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV3.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV3.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV3.java
index 979c9f6..15aa912 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV3.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileWriterV3.java
@@ -120,7 +120,7 @@ public class TestHFileWriterV3 {
                            .withBlockSize(4096)
                            .withIncludesTags(useTags)
                            .withCompression(compressAlgo).build();
-    HFile.Writer writer = new HFileWriterFactory(conf, new CacheConfig(conf))
+    HFile.Writer writer = new HFile.WriterFactory(conf, new CacheConfig(conf))
             .withPath(fs, hfilePath)
             .withFileContext(context)
             .withComparator(CellComparator.COMPARATOR)
@@ -130,10 +130,10 @@ public class TestHFileWriterV3 {
     List<KeyValue> keyValues = new ArrayList<KeyValue>(entryCount);
 
     for (int i = 0; i < entryCount; ++i) {
-      byte[] keyBytes = TestHFileWriterV2.randomOrderedKey(rand, i);
+      byte[] keyBytes = RandomKeyValueUtil.randomOrderedKey(rand, i);
 
       // A random-length random value.
-      byte[] valueBytes = TestHFileWriterV2.randomValue(rand);
+      byte[] valueBytes = RandomKeyValueUtil.randomValue(rand);
       KeyValue keyValue = null;
       if (useTags) {
         ArrayList<Tag> tags = new ArrayList<Tag>();
@@ -176,7 +176,7 @@ public class TestHFileWriterV3 {
                         .withHBaseCheckSum(true).build();
     HFileBlock.FSReader blockReader =
         new HFileBlock.FSReaderImpl(fsdis, fileSize, meta);
- // Comparator class name is stored in the trailer in version 2.
+    // Comparator class name is stored in the trailer in version 3.
     CellComparator comparator = trailer.createComparator();
     HFileBlockIndex.BlockIndexReader dataBlockIndexReader =
         new HFileBlockIndex.CellBasedKeyBlockIndexReader(comparator,
@@ -297,6 +297,5 @@ public class TestHFileWriterV3 {
 
     fsdis.close();
   }
-
 }
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLazyDataBlockDecompression.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLazyDataBlockDecompression.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLazyDataBlockDecompression.java
index 0067417..5f73500 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLazyDataBlockDecompression.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLazyDataBlockDecompression.java
@@ -89,7 +89,7 @@ public class TestLazyDataBlockDecompression {
    */
   private static void writeHFile(Configuration conf, CacheConfig cc, FileSystem fs, Path
path,
       HFileContext cxt, int entryCount) throws IOException {
-    HFile.Writer writer = new HFileWriterFactory(conf, cc)
+    HFile.Writer writer = new HFile.WriterFactory(conf, cc)
         .withPath(fs, path)
         .withFileContext(cxt)
         .create();
@@ -100,8 +100,8 @@ public class TestLazyDataBlockDecompression {
     final byte[] qualifier = Bytes.toBytes("q");
 
     for (int i = 0; i < entryCount; i++) {
-      byte[] keyBytes = TestHFileWriterV2.randomOrderedKey(rand, i);
-      byte[] valueBytes = TestHFileWriterV2.randomValue(rand);
+      byte[] keyBytes = RandomKeyValueUtil.randomOrderedKey(rand, i);
+      byte[] valueBytes = RandomKeyValueUtil.randomValue(rand);
       // make a real keyvalue so that hfile tool can examine it
       writer.append(new KeyValue(keyBytes, family, qualifier, valueBytes));
     }

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestPrefetch.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestPrefetch.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestPrefetch.java
index 053a27e..69a77bf 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestPrefetch.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestPrefetch.java
@@ -111,8 +111,8 @@ public class TestPrefetch {
 
     final int rowLen = 32;
     for (int i = 0; i < NUM_KV; ++i) {
-      byte[] k = TestHFileWriterV2.randomOrderedKey(RNG, i);
-      byte[] v = TestHFileWriterV2.randomValue(RNG);
+      byte[] k = RandomKeyValueUtil.randomOrderedKey(RNG, i);
+      byte[] v = RandomKeyValueUtil.randomValue(RNG);
       int cfLen = RNG.nextInt(k.length - rowLen + 1);
       KeyValue kv = new KeyValue(
           k, 0, rowLen,

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekBeforeWithInlineBlocks.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekBeforeWithInlineBlocks.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekBeforeWithInlineBlocks.java
index c9af3d3..0dbb4e0 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekBeforeWithInlineBlocks.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestSeekBeforeWithInlineBlocks.java
@@ -123,9 +123,9 @@ public class TestSeekBeforeWithInlineBlocks {
               .build();
             
             for (int i = 0; i < NUM_KV; i++) {
-              byte[] row = TestHFileWriterV2.randomOrderedKey(RAND, i);
-              byte[] qual = TestHFileWriterV2.randomRowOrQualifier(RAND);
-              byte[] value = TestHFileWriterV2.randomValue(RAND);
+              byte[] row = RandomKeyValueUtil.randomOrderedKey(RAND, i);
+              byte[] qual = RandomKeyValueUtil.randomRowOrQualifier(RAND);
+              byte[] value = RandomKeyValueUtil.randomValue(RAND);
               KeyValue kv = new KeyValue(row, FAM, qual, value);
   
               storeFileWriter.append(kv);

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCacheOnWriteInSchema.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCacheOnWriteInSchema.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCacheOnWriteInSchema.java
index da3c17d..0916fe6 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCacheOnWriteInSchema.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCacheOnWriteInSchema.java
@@ -37,6 +37,7 @@ import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HRegionInfo;
 import org.apache.hadoop.hbase.HTableDescriptor;
 import org.apache.hadoop.hbase.KeyValue;
+import org.apache.hadoop.hbase.io.hfile.RandomKeyValueUtil;
 import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.TableName;
@@ -49,7 +50,6 @@ import org.apache.hadoop.hbase.io.hfile.CacheConfig;
 import org.apache.hadoop.hbase.io.hfile.HFile;
 import org.apache.hadoop.hbase.io.hfile.HFileBlock;
 import org.apache.hadoop.hbase.io.hfile.HFileScanner;
-import org.apache.hadoop.hbase.io.hfile.TestHFileWriterV2;
 import org.apache.hadoop.hbase.wal.DefaultWALProvider;
 import org.apache.hadoop.hbase.wal.WALFactory;
 import org.apache.hadoop.hbase.util.Bytes;
@@ -276,8 +276,8 @@ public class TestCacheOnWriteInSchema {
   private void writeStoreFile(StoreFile.Writer writer) throws IOException {
     final int rowLen = 32;
     for (int i = 0; i < NUM_KV; ++i) {
-      byte[] k = TestHFileWriterV2.randomOrderedKey(rand, i);
-      byte[] v = TestHFileWriterV2.randomValue(rand);
+      byte[] k = RandomKeyValueUtil.randomOrderedKey(rand, i);
+      byte[] v = RandomKeyValueUtil.randomValue(rand);
       int cfLen = rand.nextInt(k.length - rowLen + 1);
       KeyValue kv = new KeyValue(
           k, 0, rowLen,

http://git-wip-us.apache.org/repos/asf/hbase/blob/92abf8ac/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompoundBloomFilter.java
----------------------------------------------------------------------
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompoundBloomFilter.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompoundBloomFilter.java
index 8300210..44e249d 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompoundBloomFilter.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompoundBloomFilter.java
@@ -43,6 +43,7 @@ import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.KeyValueUtil;
+import org.apache.hadoop.hbase.io.hfile.RandomKeyValueUtil;
 import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.client.Scan;
@@ -53,7 +54,6 @@ import org.apache.hadoop.hbase.io.hfile.CompoundBloomFilterWriter;
 import org.apache.hadoop.hbase.io.hfile.HFile;
 import org.apache.hadoop.hbase.io.hfile.HFileContext;
 import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;
-import org.apache.hadoop.hbase.io.hfile.TestHFileWriterV2;
 import org.apache.hadoop.hbase.util.BloomFilterFactory;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.BloomFilterUtil;
@@ -144,7 +144,7 @@ public class TestCompoundBloomFilter {
   private List<KeyValue> createSortedKeyValues(Random rand, int n) {
     List<KeyValue> kvList = new ArrayList<KeyValue>(n);
     for (int i = 0; i < n; ++i)
-      kvList.add(TestHFileWriterV2.randomKeyValue(rand));
+      kvList.add(RandomKeyValueUtil.randomKeyValue(rand));
     Collections.sort(kvList, CellComparator.COMPARATOR);
     return kvList;
   }
@@ -231,7 +231,7 @@ public class TestCompoundBloomFilter {
         Random rand = new Random(EVALUATION_SEED);
         int nTrials = NUM_KV[t] * 10;
         for (int i = 0; i < nTrials; ++i) {
-          byte[] query = TestHFileWriterV2.randomRowOrQualifier(rand);
+          byte[] query = RandomKeyValueUtil.randomRowOrQualifier(rand);
           if (isInBloom(scanner, query, bt, rand)) {
             numFalsePos += 1;
           }
@@ -280,16 +280,16 @@ public class TestCompoundBloomFilter {
 
   private boolean isInBloom(StoreFileScanner scanner, byte[] row, BloomType bt,
       Random rand) {
-    return isInBloom(scanner, row, TestHFileWriterV2.randomRowOrQualifier(rand));
+    return isInBloom(scanner, row, RandomKeyValueUtil.randomRowOrQualifier(rand));
   }
 
   private boolean isInBloom(StoreFileScanner scanner, byte[] row,
       byte[] qualifier) {
     Scan scan = new Scan(row, row);
-    scan.addColumn(Bytes.toBytes(TestHFileWriterV2.COLUMN_FAMILY_NAME), qualifier);
+    scan.addColumn(Bytes.toBytes(RandomKeyValueUtil.COLUMN_FAMILY_NAME), qualifier);
     Store store = mock(Store.class);
     HColumnDescriptor hcd = mock(HColumnDescriptor.class);
-    when(hcd.getName()).thenReturn(Bytes.toBytes(TestHFileWriterV2.COLUMN_FAMILY_NAME));
+    when(hcd.getName()).thenReturn(Bytes.toBytes(RandomKeyValueUtil.COLUMN_FAMILY_NAME));
     when(store.getFamily()).thenReturn(hcd);
     return scanner.shouldUseScanner(scan, store, Long.MIN_VALUE);
   }


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