Java Code Examples for org.apache.hadoop.hbase.HConstants#HFILEBLOCK_HEADER_SIZE_NO_CHECKSUM

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Example 1
Source File: TestHFileDataBlockEncoder.java    From hbase with Apache License 2.0 6 votes vote down vote up 
private void testHeaderSizeInCacheWithoutChecksumInternals(boolean useTags) throws IOException {
  int headerSize = HConstants.HFILEBLOCK_HEADER_SIZE_NO_CHECKSUM;
  // Create some KVs and create the block with old-style header.
  List<KeyValue> kvs = generator.generateTestKeyValues(60, useTags);
  ByteBuffer keyValues = RedundantKVGenerator.convertKvToByteBuffer(kvs, includesMemstoreTS);
  int size = keyValues.limit();
  ByteBuffer buf = ByteBuffer.allocate(size + headerSize);
  buf.position(headerSize);
  keyValues.rewind();
  buf.put(keyValues);
  HFileContext hfileContext = new HFileContextBuilder().withHBaseCheckSum(false)
                      .withIncludesMvcc(includesMemstoreTS)
                      .withIncludesTags(useTags)
                      .withBlockSize(0)
                      .withChecksumType(ChecksumType.NULL)
                      .build();
  HFileBlock block = new HFileBlock(BlockType.DATA, size, size, -1, ByteBuff.wrap(buf),
      HFileBlock.FILL_HEADER, 0, 0, -1, hfileContext, ByteBuffAllocator.HEAP);
  HFileBlock cacheBlock = createBlockOnDisk(kvs, block, useTags);
  assertEquals(headerSize, cacheBlock.getDummyHeaderForVersion().length);
}
Example 2
Source File: HFileBlock.java    From hbase with Apache License 2.0 4 votes vote down vote up 
/**
 * Maps a minor version to the size of the header.
 */
public static int headerSize(boolean usesHBaseChecksum) {
  return usesHBaseChecksum?
      HConstants.HFILEBLOCK_HEADER_SIZE: HConstants.HFILEBLOCK_HEADER_SIZE_NO_CHECKSUM;
}