org.blinkenbyte.io
Class ReadWriteByteArray

java.lang.Object
  org.blinkenbyte.io.ReadWriteByteArray

All Implemented Interfaces:

java.io.Closeable, ReadWriteDevice

public class ReadWriteByteArray
extends java.lang.Object
implements ReadWriteDevice

This class implements a ReadWriteDevice using a ByteArrayBuffer as a backing store.

Nested Class Summary

Nested classes/interfaces inherited from interface org.blinkenbyte.io.ReadWriteDevice

ReadWriteDevice.RWDInputStream, ReadWriteDevice.RWDOutputStream

Field Summary

protected ByteArrayBuffer	bab
protected ByteArrayBuffer.ByteArrayBufferInputStream	babInp
protected boolean	isClosed

Constructor Summary

ReadWriteByteArray()

ReadWriteByteArray(int initialSize)
Constructs a new ReadWriteByteArray with an initial size of initialSize bytes.

Method Summary

int	available() Returns the number of bytes between the current pointer and end-of-stream.
void	clear()
void	close() Closes the device.
void	flush() Flushes the device.
java.io.InputStream	getInputStream() Return an InputStream for reading from this device.
java.io.OutputStream	getOutputStream() Return an OututStream for writing to this device.
long	getPointer() Returns the current pointer for this device.
long	length() Returns the total length in bytes of this device.
void	mark(long markLimit) Sets the mark with the specified limit.
boolean	markSupported() Returns whether mark is supported.
int	read() Reads and returns a single byte.
int	read(byte[] b) Reads up to b.length bytes from the device into array b.
int	read(byte[] b, int offset, int len) Reads up to len bytes from the device into array b at b[offset].
void	reset() Resets the pointer to the mark position.
void	seek(long newPointer) Seeks the pointer to the specified offset.
void	setLength(int newLength)
long	skip(long amtToSkip) Advances the pointer by the specified number of bytes
protected void	throwIfClosed()
void	write(byte[] b) Writes b.length bytes from array b to the device.
void	write(byte[] b, int offset, int len) Writes len bytes from array b starting at b[offset] to the device.
void	write(int b) Writes a single byte to the device.

Methods inherited from class java.lang.Object

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

Field Detail

bab

protected ByteArrayBuffer bab

babInp

protected ByteArrayBuffer.ByteArrayBufferInputStream babInp

isClosed

protected boolean isClosed

Constructor Detail

ReadWriteByteArray

public ReadWriteByteArray()

ReadWriteByteArray

public ReadWriteByteArray(int initialSize)

Constructs a new ReadWriteByteArray with an initial size of initialSize bytes.

Method Detail

close

public void close()
           throws java.io.IOException

Description copied from interface: ReadWriteDevice

Closes the device.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface ReadWriteDevice

Throws:

java.io.IOException

throwIfClosed

protected void throwIfClosed()
                      throws java.io.IOException

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Description copied from interface: ReadWriteDevice

Flushes the device.

Specified by:

flush in interface ReadWriteDevice

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Description copied from interface: ReadWriteDevice

Returns the number of bytes between the current pointer and end-of-stream.

Specified by:

available in interface ReadWriteDevice

Throws:

java.io.IOException

length

public long length()
            throws java.io.IOException

Description copied from interface: ReadWriteDevice

Returns the total length in bytes of this device.

Specified by:

length in interface ReadWriteDevice

Throws:

java.io.IOException

setLength

public void setLength(int newLength)
               throws java.io.IOException

Throws:

java.io.IOException

getPointer

public long getPointer()
                throws java.io.IOException

Description copied from interface: ReadWriteDevice

Returns the current pointer for this device.

Specified by:

getPointer in interface ReadWriteDevice

Throws:

java.io.IOException

seek

public void seek(long newPointer)
          throws java.io.IOException

Description copied from interface: ReadWriteDevice

Seeks the pointer to the specified offset.

Specified by:

seek in interface ReadWriteDevice

Throws:

java.io.IOException

skip

public long skip(long amtToSkip)
          throws java.io.IOException

Description copied from interface: ReadWriteDevice

Advances the pointer by the specified number of bytes

Specified by:

skip in interface ReadWriteDevice

Throws:

java.io.IOException

read

public int read()
         throws java.io.IOException

Description copied from interface: ReadWriteDevice

Reads and returns a single byte. Returns -1 if end-of-stream.

Specified by:

read in interface ReadWriteDevice

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Description copied from interface: ReadWriteDevice

Reads up to b.length bytes from the device into array b. Returns the number of bytes read, -1 if currently at end-of-stream.

Specified by:

read in interface ReadWriteDevice

Throws:

java.io.IOException

read

public int read(byte[] b,
                int offset,
                int len)
         throws java.io.IOException

Description copied from interface: ReadWriteDevice

Reads up to len bytes from the device into array b at b[offset]. Returns the number of bytes read, -1 if currently at end-of-stream.

Specified by:

read in interface ReadWriteDevice

Throws:

java.io.IOException

write

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

Description copied from interface: ReadWriteDevice

Writes a single byte to the device.

Specified by:

write in interface ReadWriteDevice

Throws:

java.io.IOException

write

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

Description copied from interface: ReadWriteDevice

Writes b.length bytes from array b to the device.

Specified by:

write in interface ReadWriteDevice

Throws:

java.io.IOException

write

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

Description copied from interface: ReadWriteDevice

Writes len bytes from array b starting at b[offset] to the device.

Specified by:

write in interface ReadWriteDevice

Throws:

java.io.IOException

mark

public void mark(long markLimit)
          throws java.io.IOException

Description copied from interface: ReadWriteDevice

Sets the mark with the specified limit.

Specified by:

mark in interface ReadWriteDevice

Throws:

java.io.IOException

markSupported

public boolean markSupported()

Description copied from interface: ReadWriteDevice

Returns whether mark is supported.

Specified by:

markSupported in interface ReadWriteDevice

reset

public void reset()
           throws java.io.IOException

Description copied from interface: ReadWriteDevice

Resets the pointer to the mark position.

Specified by:

reset in interface ReadWriteDevice

Throws:

java.io.IOException

clear

public void clear()

getInputStream

public java.io.InputStream getInputStream()

Description copied from interface: ReadWriteDevice

Return an InputStream for reading from this device.

Specified by:

getInputStream in interface ReadWriteDevice

getOutputStream

public java.io.OutputStream getOutputStream()

Description copied from interface: ReadWriteDevice

Return an OututStream for writing to this device.

Specified by:

getOutputStream in interface ReadWriteDevice