Java Code Examples for org.apache.hadoop.io.file.tfile.Utils.Version#compatibleWith()

The following examples show how to use org.apache.hadoop.io.file.tfile.Utils.Version#compatibleWith() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: TFile.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
public TFileMeta(DataInput in) throws IOException {
  version = new Version(in);
  if (!version.compatibleWith(TFile.API_VERSION)) {
    throw new RuntimeException("Incompatible TFile fileVersion.");
  }
  recordCount = Utils.readVLong(in);
  strComparator = Utils.readString(in);
  comparator = makeComparator(strComparator);
}
Example 2
Source File: BCFile.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
/**
 * Constructor
 * 
 * @param fin
 *          FS input stream.
 * @param fileLength
 *          Length of the corresponding file
 * @throws IOException
 */
public Reader(FSDataInputStream fin, long fileLength, Configuration conf)
    throws IOException {
  this.in = fin;
  this.conf = conf;

  // move the cursor to the beginning of the tail, containing: offset to the
  // meta block index, version and magic
  fin.seek(fileLength - Magic.size() - Version.size() - Long.SIZE
      / Byte.SIZE);
  long offsetIndexMeta = fin.readLong();
  version = new Version(fin);
  Magic.readAndVerify(fin);

  if (!version.compatibleWith(BCFile.API_VERSION)) {
    throw new RuntimeException("Incompatible BCFile fileBCFileVersion.");
  }

  // read meta index
  fin.seek(offsetIndexMeta);
  metaIndex = new MetaIndex(fin);

  // read data:BCFile.index, the data block index
  BlockReader blockR = getMetaBlock(DataIndex.BLOCK_NAME);
  try {
    dataIndex = new DataIndex(blockR);
  } finally {
    blockR.close();
  }
}
Example 3
Source File: TFile.java    From big-c with Apache License 2.0 5 votes vote down vote up 
public TFileMeta(DataInput in) throws IOException {
  version = new Version(in);
  if (!version.compatibleWith(TFile.API_VERSION)) {
    throw new RuntimeException("Incompatible TFile fileVersion.");
  }
  recordCount = Utils.readVLong(in);
  strComparator = Utils.readString(in);
  comparator = makeComparator(strComparator);
}
Example 4
Source File: BCFile.java    From big-c with Apache License 2.0 5 votes vote down vote up 
/**
 * Constructor
 * 
 * @param fin
 *          FS input stream.
 * @param fileLength
 *          Length of the corresponding file
 * @throws IOException
 */
public Reader(FSDataInputStream fin, long fileLength, Configuration conf)
    throws IOException {
  this.in = fin;
  this.conf = conf;

  // move the cursor to the beginning of the tail, containing: offset to the
  // meta block index, version and magic
  fin.seek(fileLength - Magic.size() - Version.size() - Long.SIZE
      / Byte.SIZE);
  long offsetIndexMeta = fin.readLong();
  version = new Version(fin);
  Magic.readAndVerify(fin);

  if (!version.compatibleWith(BCFile.API_VERSION)) {
    throw new RuntimeException("Incompatible BCFile fileBCFileVersion.");
  }

  // read meta index
  fin.seek(offsetIndexMeta);
  metaIndex = new MetaIndex(fin);

  // read data:BCFile.index, the data block index
  BlockReader blockR = getMetaBlock(DataIndex.BLOCK_NAME);
  try {
    dataIndex = new DataIndex(blockR);
  } finally {
    blockR.close();
  }
}
Example 5
Source File: DTBCFile.java    From attic-apex-malhar with Apache License 2.0 5 votes vote down vote up 
/**
 * Constructor
 *
 * @param fin
 *          FS input stream.
 * @param fileLength
 *          Length of the corresponding file
 * @throws IOException
 */
public Reader(FSDataInputStream fin, long fileLength, Configuration conf)
    throws IOException {
  this.in = fin;
  this.conf = conf;
  // A reader buffer to read the block
  baos = new ByteArrayOutputStream(DTFile.getFSInputBufferSize(conf) * 2);
  this.cacheKeys = new ArrayList<String>();
  // move the cursor to the beginning of the tail, containing: offset to the
  // meta block index, version and magic
  fin.seek(fileLength - Magic.size() - Version.size() - Long.SIZE
      / Byte.SIZE);
  long offsetIndexMeta = fin.readLong();
  version = new Version(fin);
  Magic.readAndVerify(fin);

  if (!version.compatibleWith(DTBCFile.API_VERSION)) {
    throw new RuntimeException("Incompatible BCFile fileBCFileVersion.");
  }

  // read meta index
  fin.seek(offsetIndexMeta);
  metaIndex = new MetaIndex(fin);

  // read data:BCFile.index, the data block index
  BlockReader blockR = getMetaBlock(DataIndex.BLOCK_NAME);
  try {
    dataIndex = new DataIndex(blockR);
  } finally {
    blockR.close();
  }
}
Example 6
Source File: DTFile.java    From attic-apex-malhar with Apache License 2.0 5 votes vote down vote up 
public TFileMeta(DataInput in) throws IOException {
  version = new Version(in);
  if (!version.compatibleWith(DTFile.API_VERSION)) {
    throw new RuntimeException("Incompatible TFile fileVersion.");
  }
  recordCount = Utils.readVLong(in);
  strComparator = Utils.readString(in);
  comparator = makeComparator(strComparator);
}
Example 7
Source File: TFile.java    From RDFS with Apache License 2.0 5 votes vote down vote up 
public TFileMeta(DataInput in) throws IOException {
  version = new Version(in);
  if (!version.compatibleWith(TFile.API_VERSION)) {
    throw new RuntimeException("Incompatible TFile fileVersion.");
  }
  recordCount = Utils.readVLong(in);
  strComparator = Utils.readString(in);
  comparator = makeComparator(strComparator);
}
Example 8
Source File: BCFile.java    From RDFS with Apache License 2.0 5 votes vote down vote up 
/**
 * Constructor
 * 
 * @param fin
 *          FS input stream.
 * @param fileLength
 *          Length of the corresponding file
 * @throws IOException
 */
public Reader(FSDataInputStream fin, long fileLength, Configuration conf)
    throws IOException {
  this.in = fin;
  this.conf = conf;

  // move the cursor to the beginning of the tail, containing: offset to the
  // meta block index, version and magic
  fin.seek(fileLength - Magic.size() - Version.size() - Long.SIZE
      / Byte.SIZE);
  long offsetIndexMeta = fin.readLong();
  version = new Version(fin);
  Magic.readAndVerify(fin);

  if (!version.compatibleWith(BCFile.API_VERSION)) {
    throw new RuntimeException("Incompatible BCFile fileBCFileVersion.");
  }

  // read meta index
  fin.seek(offsetIndexMeta);
  metaIndex = new MetaIndex(fin);

  // read data:BCFile.index, the data block index
  BlockReader blockR = getMetaBlock(DataIndex.BLOCK_NAME);
  try {
    dataIndex = new DataIndex(blockR);
  } finally {
    blockR.close();
  }
}
Example 9
Source File: TFile.java    From hadoop-gpu with Apache License 2.0 5 votes vote down vote up 
public TFileMeta(DataInput in) throws IOException {
  version = new Version(in);
  if (!version.compatibleWith(TFile.API_VERSION)) {
    throw new RuntimeException("Incompatible TFile fileVersion.");
  }
  recordCount = Utils.readVLong(in);
  strComparator = Utils.readString(in);
  comparator = makeComparator(strComparator);
}
Example 10
Source File: BCFile.java    From hadoop-gpu with Apache License 2.0 5 votes vote down vote up 
/**
 * Constructor
 * 
 * @param fin
 *          FS input stream.
 * @param fileLength
 *          Length of the corresponding file
 * @throws IOException
 */
public Reader(FSDataInputStream fin, long fileLength, Configuration conf)
    throws IOException {
  this.in = fin;
  this.conf = conf;

  // move the cursor to the beginning of the tail, containing: offset to the
  // meta block index, version and magic
  fin.seek(fileLength - Magic.size() - Version.size() - Long.SIZE
      / Byte.SIZE);
  long offsetIndexMeta = fin.readLong();
  version = new Version(fin);
  Magic.readAndVerify(fin);

  if (!version.compatibleWith(BCFile.API_VERSION)) {
    throw new RuntimeException("Incompatible BCFile fileBCFileVersion.");
  }

  // read meta index
  fin.seek(offsetIndexMeta);
  metaIndex = new MetaIndex(fin);

  // read data:BCFile.index, the data block index
  BlockReader blockR = getMetaBlock(DataIndex.BLOCK_NAME);
  try {
    dataIndex = new DataIndex(blockR);
  } finally {
    blockR.close();
  }
}