net.jxta.util
Class CountingOutputStream

java.lang.Object
  |
  +--java.io.OutputStream
        |
        +--java.io.FilterOutputStream
              |
              +--net.jxta.util.CountingOutputStream

public class CountingOutputStream

extends java.io.FilterOutputStream

A filter output stream which counts the bytes sent to the stream. A filter so that you don't have to count seperately from writing to the output

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

CountingOutputStream(java.io.OutputStream out)
Creates a new instance of CountingOutputStream

Method Summary

long	getBytesWritten() Returns the number of bytes written to the stream thus far.
void	write(byte[] b) Writes b.length bytes to this output stream.
void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	write(int b) Writes the specified byte to this output stream.

Methods inherited from class java.io.FilterOutputStream

close, flush

Methods inherited from class java.lang.Object

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

Constructor Detail

CountingOutputStream

public CountingOutputStream(java.io.OutputStream out)

Creates a new instance of CountingOutputStream

Method Detail

write

public void write(byte[] b)
           throws java.io.IOException

Writes b.length bytes to this output stream.

The write method of FilterOutputStream calls its write method of three arguments with the arguments b, 0, and b.length.

Note that this method does not call the one-argument write method of its underlying stream with the single argument b.

Overrides:

write in class java.io.FilterOutputStream

Parameters:

b - the data to be written.

Throws:

java.io.IOException - if an I/O error occurs.

See Also:

FilterOutputStream.write(byte[], int, int)

write

public void write(int b)
           throws java.io.IOException

Writes the specified byte to this output stream.

The write method of FilterOutputStream calls the write method of its underlying output stream, that is, it performs out.write(b).

Implements the abstract write method of OutputStream.

Overrides:

write in class java.io.FilterOutputStream

Parameters:

b - the byte.

Throws:

java.io.IOException - if an I/O error occurs.

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Writes len bytes from the specified byte array starting at offset off to this output stream.

The write method of FilterOutputStream calls the write method of one argument on each byte to output.

Note that this method does not call the write method of its underlying input stream with the same arguments. Subclasses of FilterOutputStream should provide a more efficient implementation of this method.

Overrides:

write in class java.io.FilterOutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

java.io.IOException - if an I/O error occurs.

See Also:

FilterOutputStream.write(int)

getBytesWritten

public long getBytesWritten()

Returns the number of bytes written to the stream thus far. This and all the methods in this class are synchronized because bytesWritten cannot be volatile.