com.google.common.io
Class CountingOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          com.google.common.io.CountingOutputStream

All Implemented Interfaces:

Closeable, Flushable

@Beta
public final class CountingOutputStream
extends FilterOutputStream

An OutputStream that counts the number of bytes written.

Since:

1

Author:

Chris Nokleberg

CountingOutputStream

public CountingOutputStream(OutputStream out)

Wraps another output stream, counting the number of bytes written.

Parameters:

out - the output stream to be wrapped

getCount

public long getCount()

Returns the number of bytes written.

write

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

Description copied from class: java.io.FilterOutputStream

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)

write

public void write(int b)
           throws IOException

Description copied from class: java.io.FilterOutputStream

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.