com.imagero.uio.io
Class ByteArrayOutputStreamExt

java.lang.Object
  java.io.OutputStream
      java.io.ByteArrayOutputStream
          com.imagero.uio.io.ByteArrayOutputStreamExt

public class ByteArrayOutputStreamExt

extends java.io.ByteArrayOutputStream

ByteArrayOutputStreamExt extends ByteArrayOutputStream with posibility to drain off data into user specified buffer. ActionEvent is fired if buffer is full and going to grow.

Field Summary

static java.lang.String

BUFFER_FULL

Fields inherited from class java.io.ByteArrayOutputStream

buf, count

Constructor Summary

ByteArrayOutputStreamExt()

ByteArrayOutputStreamExt(java.awt.event.ActionListener l)

ByteArrayOutputStreamExt(int size)

ByteArrayOutputStreamExt(int size, java.awt.event.ActionListener l)

Method Summary

void	close()
byte[]	closeStream()
byte[]	drain() Retrieve internal buffer.
int	drain(byte[] dest) Fill destination buffer with data which is removed from start of this buffer.
protected void	fireBufferFullEvent()
void	setBufferListener(java.awt.event.ActionListener bufferListener)
void	write(byte[] b, int off, int len) Writes len bytes from given byte array starting at offset off to this buffer.
void	write(int b)
void	writeTo(java.io.DataOutput out)

Methods inherited from class java.io.ByteArrayOutputStream

reset, size, toByteArray, toString, toString, toString, writeTo

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Field Detail

BUFFER_FULL

public static final java.lang.String BUFFER_FULL

See Also:

Constant Field Values

Constructor Detail

ByteArrayOutputStreamExt

public ByteArrayOutputStreamExt()

ByteArrayOutputStreamExt

public ByteArrayOutputStreamExt(int size)

ByteArrayOutputStreamExt

public ByteArrayOutputStreamExt(java.awt.event.ActionListener l)

ByteArrayOutputStreamExt

public ByteArrayOutputStreamExt(int size,
                                java.awt.event.ActionListener l)

Method Detail

fireBufferFullEvent

protected void fireBufferFullEvent()

drain

public int drain(byte[] dest)

Fill destination buffer with data which is removed from start of this buffer.

Parameters:

dest - destination buffer

Returns:

how much bytes was moved from this buffer into destination buffer.

write

public void write(int b)

write

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

Writes len bytes from given byte array starting at offset off to this buffer. If capacity of buffer is not enough for incoming data, then, at-first, buffer filled with data, then fired "buffer is full" event, thus giving the user possibility to "drain" buffer. If buffer was drained, then rest of data is written to buffer, otherwise buffer capacity is increased before writing.

Parameters:

b -

off -

len -

close

public void close()
           throws java.io.IOException

Throws:

java.io.IOException

setBufferListener

public void setBufferListener(java.awt.event.ActionListener bufferListener)

drain

public byte[] drain()

Retrieve internal buffer. Recommended use - immediately after receiving "buffer full" event. Internal buffer is returned and replaced with new empty buffer.

writeTo

public void writeTo(java.io.DataOutput out)
             throws java.io.IOException

Throws:

java.io.IOException

closeStream

public byte[] closeStream()