Constructor Detail

• LookaheadInputStream

  public LookaheadInputStream(int lookaheadSize)

  Configure a stream that hides a number of bytes from the reader. The last n bytes will never be available from read(), they can only be obtained from getFooter(). initialize() MUST be called before doing any read() calls.

  Parameters:

  lookaheadSize - how many bytes to hide

Method Detail

• getEOFReached

  public boolean getEOFReached()

  Whether the end of the stream has been reached.

  Returns:

  whether EOF has been reached

• getFooter

  public byte[] getFooter()

  Grab the lookahead footer. This will be of size lookaheadsize given in constructor. The last byte received will be in the last byte of the array.

  Returns:

  the lookahead footer bytes

• initialize

  public void initialize(InputStream src)
                  throws IOException

  Start the LookaheadInputStream with the given input stream. Resets everything if the LookaheadInputStream was previously used. WARNING - blocking until lookaheadSize bytes are read!

  Parameters:

  src - the input stream

  Throws:

  IOException - if less than lookaheadSize bytes could be read.

• read

  public int read()
           throws IOException

  Overrides:

  read in class FilterInputStream

  Throws:

  IOException

• read

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

  Overrides:

  read in class FilterInputStream

  Throws:

  IOException

• skip

  public long skip(long n)
            throws IOException

  Overrides:

  skip in class FilterInputStream

  Throws:

  IOException