IT. Expert System.

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class CheckedOutputStream
extends FilterOutputStream

• Field Summary

  • Fields inherited from class java.io.FilterOutputStream

    out

• Constructor Summary

  Constructors

  Constructor and Description
  CheckedOutputStream(OutputStream os, Checksum cs) Constructs a new CheckedOutputStream on OutputStream os.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  Checksum	getChecksum() Returns the checksum calculated on the stream read so far.
  void	write(byte[] buf, int off, int nbytes) Writes n bytes of data from buf starting at offset off to the underlying stream.
  void	write(int val) Writes the specified byte to the underlying stream.

  • Methods inherited from class java.io.FilterOutputStream

    close, flush

  • Methods inherited from class java.io.OutputStream

    write

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Detail

  • CheckedOutputStream

    public CheckedOutputStream(OutputStream os,
                       Checksum cs)

    Constructs a new CheckedOutputStream on OutputStream os. The checksum is calculated using the algorithm implemented by csum.

    Parameters:

    os - the output stream to calculate checksum for.

    cs - an entity implementing the checksum algorithm.

• Method Detail

  • getChecksum

    public Checksum getChecksum()

    Returns the checksum calculated on the stream read so far.

    Returns:

    the updated checksum.

  • write

    public void write(int val)
               throws IOException

    Writes the specified byte to the underlying stream. The checksum is updated with val.

    Overrides:

    write in class FilterOutputStream

    Parameters:

    val - the data value to written to the output stream.

    Throws:

    IOException - if an IO error has occurred.

  • write

    public void write(byte[] buf,
             int off,
             int nbytes)
               throws IOException

    Writes n bytes of data from buf starting at offset off to the underlying stream. The checksum is updated with the bytes written.

    Overrides:

    write in class FilterOutputStream

    Parameters:

    buf - data written to the output stream.

    off - the offset to start reading the data from buf written to the output stream.

    nbytes - number of bytes to write to the output stream.

    Throws:

    IOException - if an IO error has occurred.