org.itadaki.bzip2

Class BZip2BitOutputStream

java.lang.Object

org.itadaki.bzip2.BZip2BitOutputStream

public class BZip2BitOutputStream
extends Object

An OutputStream wrapper that allows the writing of single bit booleans, unary numbers, bit strings of arbitrary length (up to 24 bits), and bit aligned 32-bit integers. A single byte at a time is written to the wrapped stream when sufficient bits have been accumulated

Constructor Summary

Constructors

Constructor and Description
BZip2BitOutputStream(OutputStream outputStream)

Method Summary

Methods

Modifier and Type	Method and Description
void	flush() Writes any remaining bits to the output stream, zero padding to a whole byte as required
void	writeBits(int count, int value) Writes up to 24 bits to the wrapped output stream
void	writeBoolean(boolean value) Writes a single bit to the wrapped output stream
void	writeInteger(int value) Writes an integer as 32 bits of output
void	writeUnary(int value) Writes a zero-terminated unary number to the wrapped output stream

Methods inherited from class java.lang.Object

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

Constructor Detail

BZip2BitOutputStream

public BZip2BitOutputStream(OutputStream outputStream)

Parameters:

outputStream - The OutputStream to wrap

Method Detail

writeBoolean

public void writeBoolean(boolean value)
                  throws IOException

Writes a single bit to the wrapped output stream

Parameters:

value - The bit to write

Throws:

IOException - if an error occurs writing to the stream

writeUnary

public void writeUnary(int value)
                throws IOException

Writes a zero-terminated unary number to the wrapped output stream

Parameters:

value - The number to write (must be non-negative)

Throws:

IOException - if an error occurs writing to the stream

writeBits

public void writeBits(int count,
             int value)
               throws IOException

Writes up to 24 bits to the wrapped output stream

Parameters:

count - The number of bits to write (maximum 24)

value - The bits to write

Throws:

IOException - if an error occurs writing to the stream

writeInteger

public void writeInteger(int value)
                  throws IOException

Writes an integer as 32 bits of output

Parameters:

value - The integer to write

Throws:

IOException - if an error occurs writing to the stream

flush

public void flush()
           throws IOException

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

Throws:

IOException - if an error occurs writing to the stream