Constructor Detail

• HashingInputStream

  public HashingInputStream(HashFunction hashFunction,
                            InputStream in)

  Creates an input stream that hashes using the given HashFunction and delegates all data read from it to the underlying InputStream.

  The InputStream should not be read from before or after the hand-off.

Method Detail

• read

  public int read()
           throws IOException

  Reads the next byte of data from the underlying input stream and updates the hasher with the byte read.

  Overrides:

  read in class  FilterInputStream

  Throws:

  IOException

• read

  public int read(byte[] bytes,
                  int off,
                  int len)
           throws IOException

  Reads the specified bytes of data from the underlying input stream and updates the hasher with the bytes read.

  Overrides:

  read in class  FilterInputStream

  Throws:

  IOException

• markSupported

  public boolean markSupported()

  mark() is not supported for HashingInputStream

  Overrides:

  markSupported in class  FilterInputStream

  Returns:

  false always

• mark

  public void mark(int readlimit)

  mark() is not supported for HashingInputStream

• reset

  public void reset()
             throws IOException

  reset() is not supported for HashingInputStream.

  Overrides:

  reset in class  FilterInputStream

  Throws:

  IOException - this operation is not supported

• hash

  public HashCode hash()

  Returns the HashCode based on the data read from this stream. The result is unspecified if this method is called more than once on the same instance.