Class Bzip2BitWriter

java.lang.Object

io.netty.handler.codec.compression.Bzip2BitWriter

final class Bzip2BitWriter
extends java.lang.Object

A bit writer that allows the writing of single bit booleans, unary numbers, bit strings of arbitrary length (up to 32 bits), and bit aligned 32-bit integers. A single byte at a time is written to the ByteBuf when sufficient bits have been accumulated.

Field Summary

Fields

Modifier and Type	Field	Description
private long	bitBuffer	A buffer of bits waiting to be written to the output stream.
private int	bitCount	The number of bits currently buffered in bitBuffer.

Constructor Summary

Constructors

Constructor	Description
Bzip2BitWriter()

Method Summary

Modifier and Type	Method	Description
(package private) void	flush(ByteBuf out)	Writes any remaining bits to the output ByteBuf, zero padding to a whole byte as required.
(package private) void	writeBits(ByteBuf out, int count, long value)	Writes up to 32 bits to the output ByteBuf.
(package private) void	writeBoolean(ByteBuf out, boolean value)	Writes a single bit to the output ByteBuf.
(package private) void	writeInt(ByteBuf out, int value)	Writes an integer as 32 bits to the output ByteBuf.
(package private) void	writeUnary(ByteBuf out, int value)	Writes a zero-terminated unary number to the output ByteBuf.

Methods inherited from class java.lang.Object

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

Field Details

bitBuffer

private long bitBuffer

A buffer of bits waiting to be written to the output stream.

bitCount

private int bitCount

The number of bits currently buffered in bitBuffer.

Constructor Details

Bzip2BitWriter

Bzip2BitWriter()

Method Details

writeBits

void writeBits(ByteBuf out,
 int count,
 long value)

Writes up to 32 bits to the output ByteBuf.

Parameters:

count - The number of bits to write (maximum 32 as a size of int)

value - The bits to write

writeBoolean

void writeBoolean(ByteBuf out,
 boolean value)

Writes a single bit to the output ByteBuf.

Parameters:

value - The bit to write

writeUnary

void writeUnary(ByteBuf out,
 int value)

Writes a zero-terminated unary number to the output ByteBuf. Example of the output for value = 6: 1111110

Parameters:

value - The number of 1 to write

writeInt

void writeInt(ByteBuf out,
 int value)

Writes an integer as 32 bits to the output ByteBuf.

Parameters:

value - The integer to write

flush

void flush(ByteBuf out)

Writes any remaining bits to the output ByteBuf, zero padding to a whole byte as required.