CBZip2OutputStream Class Reference

Inherits java::io::OutputStream, and org::apache::tools::bzip2::BZip2Constants.

Collaboration diagram for CBZip2OutputStream:

[legend]

List of all members.

Classes
class	StackElem
Public Member Functions
	CBZip2OutputStream (OutputStream inStream, int inBlockSize) throws IOException
	CBZip2OutputStream (OutputStream inStream) throws IOException
void	close () throws IOException
void	flush () throws IOException
void	write (int bv) throws IOException
Protected Member Functions
void	finalize () throws Throwable
Static Protected Member Functions
static void	hbMakeCodeLengths (char[] len, int[] freq, int alphaSize, int maxLen)
Static Protected Attributes
static final int	CLEARMASK = (~SETMASK)
static final int	DEPTH_THRESH = 10
static final int	GREATER_ICOST = 15
static final int	LESSER_ICOST = 0
static final int	QSORT_STACK_SIZE = 1000
static final int	SETMASK = (1 << 21)
static final int	SMALL_THRESH = 20
Package Attributes
boolean	blockRandomised
int	blockSize100k
int	bsBuff
int	bsLive
int	bytesOut
boolean	closed = false
int	last
CRC	mCrc = new CRC()
int	origPtr
Private Member Functions
void	allocateCompressStructures ()
void	bsFinishedWithStream () throws IOException
void	bsPutint (int u) throws IOException
void	bsPutIntVS (int numBits, int c) throws IOException
void	bsPutUChar (int c) throws IOException
void	bsSetStream (OutputStream f)
void	bsW (int n, int v) throws IOException
void	doReversibleTransformation ()
void	endBlock () throws IOException
void	endCompression () throws IOException
boolean	fullGtU (int i1, int i2)
void	generateMTFValues ()
void	hbAssignCodes (int[] code, char[] length, int minLen, int maxLen, int alphaSize)
void	initBlock ()
void	initialize () throws IOException
void	mainSort ()
void	makeMaps ()
char	med3 (char a, char b, char c)
void	moveToFrontCodeAndSend () throws IOException
void	qSort3 (int loSt, int hiSt, int dSt)
void	randomiseBlock ()
void	sendMTFValues () throws IOException
void	simpleSort (int lo, int hi, int d)
void	vswap (int p1, int p2, int n)
void	writeRun () throws IOException
Static Private Member Functions
static void	panic ()
Private Attributes
int	allowableBlockSize
char[]	block
int	blockCRC
OutputStream	bsStream
int	combinedCRC
int	currentChar = -1
boolean	firstAttempt
int[]	ftab
int[]	incs
boolean[]	inUse = new boolean[256]
int[]	mtfFreq = new int[MAX_ALPHA_SIZE]
int	nBlocksRandomised
int	nInUse
int	nMTF
int[]	quadrant
int	runLength = 0
char[]	selector = new char[MAX_SELECTORS]
char[]	selectorMtf = new char[MAX_SELECTORS]
char[]	seqToUnseq = new char[256]
short[]	szptr
char[]	unseqToSeq = new char[256]
int	workDone
int	workFactor
int	workLimit
int[]	zptr

---

Detailed Description

An output stream that compresses into the BZip2 format (without the file header chars) into another stream.

Author:

Keiron Liddle

TODO: Update to BZip2 1.0.1

---

Constructor & Destructor Documentation

CBZip2OutputStream

(

OutputStream

inStream

)

throws IOException

CBZip2OutputStream	(	OutputStream	inStream,
		int	inBlockSize
	)			throws IOException

---

Member Function Documentation

void allocateCompressStructures

(

)

[private]

void bsFinishedWithStream

(

)

throws IOException [private]

void bsPutint

(

int

u

)

throws IOException [private]

void bsPutIntVS	(	int	numBits,
		int	c
	)			throws IOException [private]

void bsPutUChar

(

int

c

)

throws IOException [private]

void bsSetStream

(

OutputStream

f

)

[private]

void bsW	(	int	n,
		int	v
	)			throws IOException [private]

void close

(

)

throws IOException

void doReversibleTransformation

(

)

[private]

void endBlock

(

)

throws IOException [private]

void endCompression

(

)

throws IOException [private]

void finalize

(

)

throws Throwable [protected]

void flush

(

)

throws IOException

boolean fullGtU	(	int	i1,
		int	i2
	)			[private]

void generateMTFValues

(

)

[private]

void hbAssignCodes	(	int[]	code,
		char[]	length,
		int	minLen,
		int	maxLen,
		int	alphaSize
	)			[private]

static void hbMakeCodeLengths	(	char[]	len,
		int[]	freq,
		int	alphaSize,
		int	maxLen
	)			[static, protected]

void initBlock

(

)

[private]

void initialize

(

)

throws IOException [private]

void mainSort

(

)

[private]

void makeMaps

(

)

[private]

char med3	(	char	a,
		char	b,
		char	c
	)			[private]

void moveToFrontCodeAndSend

(

)

throws IOException [private]

static void panic

(

)

[static, private]

void qSort3	(	int	loSt,
		int	hiSt,
		int	dSt
	)			[private]

void randomiseBlock

(

)

[private]

void sendMTFValues

(

)

throws IOException [private]

void simpleSort	(	int	lo,
		int	hi,
		int	d
	)			[private]

void vswap	(	int	p1,
		int	p2,
		int	n
	)			[private]

void write

(

int

bv

)

throws IOException

modified by Oliver Merkel, 010128

void writeRun

(

)

throws IOException [private]

---

Member Data Documentation

int allowableBlockSize [private]

char [] block [private]

int blockCRC [private]

boolean blockRandomised [package]

int blockSize100k [package]

int bsBuff [package]

int bsLive [package]

OutputStream bsStream [private]

int bytesOut [package]

final int CLEARMASK = (~SETMASK) [static, protected]

boolean closed = false [package]

int combinedCRC [private]

int currentChar = -1 [private]

final int DEPTH_THRESH = 10 [static, protected]

boolean firstAttempt [private]

int [] ftab [private]

final int GREATER_ICOST = 15 [static, protected]

int [] incs [private]

Initial value:

 { 1, 4, 13, 40, 121, 364, 1093, 3280,
                           9841, 29524, 88573, 265720,
                           797161, 2391484 }

boolean [] inUse = new boolean[256] [private]

int last [package]

final int LESSER_ICOST = 0 [static, protected]

CRC mCrc = new CRC() [package]

int [] mtfFreq = new int[MAX_ALPHA_SIZE] [private]

int nBlocksRandomised [private]

int nInUse [private]

int nMTF [private]

int origPtr [package]

final int QSORT_STACK_SIZE = 1000 [static, protected]

int [] quadrant [private]

int runLength = 0 [private]

char [] selector = new char[MAX_SELECTORS] [private]

char [] selectorMtf = new char[MAX_SELECTORS] [private]

char [] seqToUnseq = new char[256] [private]

final int SETMASK = (1 << 21) [static, protected]

final int SMALL_THRESH = 20 [static, protected]

short [] szptr [private]

char [] unseqToSeq = new char[256] [private]

int workDone [private]

int workFactor [private]

int workLimit [private]

int [] zptr [private]

---

The documentation for this class was generated from the following file:

• /opt/source/Wonder/Utilities/WOInstall/Sources/org/apache/tools/bzip2/CBZip2OutputStream.java