Examples of org.apache.hadoop.hdfs.server.datanode.fsdataset.LengthInputStream

    if (!binfo.finalized) {
      throw new IOException("Block " + b + 
          " is being written, its meta cannot be read");
    }
    final SimulatedInputStream sin = binfo.getMetaIStream();
    return new LengthInputStream(sin, sin.getLength());
  }

    final DataOutputStream out = new DataOutputStream(
        getOutputStream());
    checkAccess(out, true, block, blockToken,
        Op.BLOCK_CHECKSUM, BlockTokenSecretManager.AccessMode.READ);
    updateCurrentThreadName("Reading metadata for block " + block);
    final LengthInputStream metadataIn = 
      datanode.data.getMetaDataInputStream(block);
    final DataInputStream checksumIn = new DataInputStream(new BufferedInputStream(
        metadataIn, HdfsConstants.IO_FILE_BUFFER_SIZE));


    updateCurrentThreadName("Getting checksum for block " + block);
    try {
      //read metadata file
      final BlockMetadataHeader header = BlockMetadataHeader.readHeader(checksumIn);
      final DataChecksum checksum = header.getChecksum(); 
      final int bytesPerCRC = checksum.getBytesPerChecksum();
      final long crcPerBlock = checksum.getChecksumSize() > 0 
              ? (metadataIn.getLength() - BlockMetadataHeader.getHeaderSize())/checksum.getChecksumSize()
              : 0;
      
      //compute block checksum
      final MD5Hash md5 = MD5Hash.digest(checksumIn);

Examples of org.apache.hadoop.hdfs.server.datanode.fsdataset.LengthInputStream

Related Classes of org.apache.hadoop.hdfs.server.datanode.fsdataset.LengthInputStream