Package org.ka2ddo.yaac.io

Class CountingOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

org.ka2ddo.yaac.io.CountingOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public final class CountingOutputStream
extends FilterOutputStream

This class is a FilterOutputStream that counts the number of bytes written to the lower-level OutputStream.

Author:

Andrew Pavlin, KA2DDO

Field Summary

Fields

Modifier and Type	Field	Description
long	count	Number of bytes forwarded to the encapsulated OutputStream.

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor	Description
CountingOutputStream(OutputStream out)	Wrap a stream that counts the number of bytes written around another OutputStream,

Method Summary

Modifier and Type	Method	Description
long	getByteCount()	Get the number of bytes passed through this stream (so 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.io.OutputStream

nullOutputStream

Methods inherited from class java.lang.Object

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

Field Details

count

public long count

Number of bytes forwarded to the encapsulated OutputStream.

Constructor Details

CountingOutputStream

public CountingOutputStream(OutputStream out)

Wrap a stream that counts the number of bytes written around another OutputStream,

Parameters:

out - OutputStream to received forwarded bytes

Method Details

write

public void write(int b)
           throws 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 FilterOutputStream

Parameters:

b - the byte.

Throws:

IOException - if an I/O error occurs.

write

public void write(byte[] b)
           throws 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 FilterOutputStream

Parameters:

b - the data to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

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

write

public void write(byte[] b,
 int off,
 int len)
           throws 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 FilterOutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

IOException - if an I/O error occurs.

See Also:

• FilterOutputStream.write(int)

getByteCount

public long getByteCount()

Get the number of bytes passed through this stream (so far).

Returns:

the number of written bytes so far.