Package one.nio.lz4

Class LZ4

java.lang.Object

one.nio.lz4.LZ4

public class LZ4
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	ACCELERATION
private static final int	COPYLENGTH
private static final long	DEC32_TABLE
private static final long	DEC64_TABLE
private static final int	HASH_SIZE_16
private static final int	HASH_SIZE_32
private static final int	LASTLITERALS
private static final int	LZ4_64K_LIMIT
private static final int	LZ4_MAX_INPUT_SIZE
private static final int	LZ4_MEMORY_USAGE
private static final int	LZ4_MIN_LENGTH
private static final int	LZ4_SKIP_TRIGGER
private static final int	MAX_DISTANCE
private static final int	MAXD_LOG
private static final int	MFLIMIT
private static final int	MINMATCH
private static final int	ML_BITS
private static final int	ML_MASK
private static final int	RUN_BITS
private static final int	RUN_MASK

Constructor Summary

Constructors

Constructor	Description
LZ4()

Method Summary

Modifier and Type	Method	Description
private static long	address(ByteBuffer buf)
private static byte[]	array(ByteBuffer buf)
static int	compress(byte[] src, byte[] dst)
static int	compress(byte[] src, int srcOffset, byte[] dst, int dstOffset, int length)
static int	compress(ByteBuffer src, ByteBuffer dst)
private static int	compress0(byte[] src, long srcOffset, byte[] dst, long dstOffset, int length)
private static int	compress16(Object src, long srcOffset, Object dst, long dstOffset, int inputSize)
private static int	compress32(Object src, long srcOffset, Object dst, long dstOffset, int inputSize)
static int	compressBound(int size)
static int	decompress(byte[] src, byte[] dst)
static int	decompress(byte[] src, int srcOffset, byte[] dst, int dstOffset, int length)
private static int	decompress(Object src, long srcOffset, Object dst, long dstOffset, int inputSize, int outputSize)
static int	decompress(ByteBuffer src, ByteBuffer dst)
private static int	decompress0(byte[] src, long srcOffset, byte[] dst, long dstOffset, int length, int maxOutput)
private static int	hashPosition16(Object src, long p)
private static int	hashPosition32(Object src, long p)
private static int	matchLength(Object src, long pIn, long pMatch, long pInLimit)
private static long	offset(ByteBuffer buf)
private static void	putPosition(int[] table, long p, Object src, long srcOffset)
private static void	putPosition(short[] table, long p, Object src, long srcOffset)
private static long	replacePosition(int[] table, long p, Object src, long srcOffset)
private static long	replacePosition(short[] table, long p, Object src, long srcOffset)
private static void	wildCopy(Object src, long srcOffset, Object dst, long dstOffset, long dstEnd)

Methods inherited from class java.lang.Object

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

Field Details

LZ4_MAX_INPUT_SIZE

private static final int LZ4_MAX_INPUT_SIZE

See Also:

• Constant Field Values

LZ4_MEMORY_USAGE

private static final int LZ4_MEMORY_USAGE

See Also:

• Constant Field Values

ACCELERATION

private static final int ACCELERATION

See Also:

• Constant Field Values

MINMATCH

private static final int MINMATCH

See Also:

• Constant Field Values

COPYLENGTH

private static final int COPYLENGTH

See Also:

• Constant Field Values

LASTLITERALS

private static final int LASTLITERALS

See Also:

• Constant Field Values

MFLIMIT

private static final int MFLIMIT

See Also:

• Constant Field Values

LZ4_MIN_LENGTH

private static final int LZ4_MIN_LENGTH

See Also:

• Constant Field Values

MAXD_LOG

private static final int MAXD_LOG

See Also:

• Constant Field Values

MAX_DISTANCE

private static final int MAX_DISTANCE

See Also:

• Constant Field Values

ML_BITS

private static final int ML_BITS

See Also:

• Constant Field Values

ML_MASK

private static final int ML_MASK

See Also:

• Constant Field Values

RUN_BITS

private static final int RUN_BITS

See Also:

• Constant Field Values

RUN_MASK

private static final int RUN_MASK

See Also:

• Constant Field Values

HASH_SIZE_16

private static final int HASH_SIZE_16

See Also:

• Constant Field Values

HASH_SIZE_32

private static final int HASH_SIZE_32

See Also:

• Constant Field Values

LZ4_SKIP_TRIGGER

private static final int LZ4_SKIP_TRIGGER

See Also:

• Constant Field Values

LZ4_64K_LIMIT

private static final int LZ4_64K_LIMIT

See Also:

• Constant Field Values

DEC64_TABLE

private static final long DEC64_TABLE

See Also:

• Constant Field Values

DEC32_TABLE

private static final long DEC32_TABLE

See Also:

• Constant Field Values

Constructor Details

LZ4

public LZ4()

Method Details

compressBound

public static int compressBound(int size)

compress

public static int compress(byte[] src,
 byte[] dst)

compress

public static int compress(byte[] src,
 int srcOffset,
 byte[] dst,
 int dstOffset,
 int length)

compress

public static int compress(ByteBuffer src,
 ByteBuffer dst)

decompress

public static int decompress(byte[] src,
 byte[] dst)

decompress

public static int decompress(byte[] src,
 int srcOffset,
 byte[] dst,
 int dstOffset,
 int length)

decompress

public static int decompress(ByteBuffer src,
 ByteBuffer dst)

array

private static byte[] array(ByteBuffer buf)

offset

private static long offset(ByteBuffer buf)

address

private static long address(ByteBuffer buf)

hashPosition16

private static int hashPosition16(Object src,
 long p)

hashPosition32

private static int hashPosition32(Object src,
 long p)

putPosition

private static void putPosition(short[] table,
 long p,
 Object src,
 long srcOffset)

replacePosition

private static long replacePosition(short[] table,
 long p,
 Object src,
 long srcOffset)

putPosition

private static void putPosition(int[] table,
 long p,
 Object src,
 long srcOffset)

replacePosition

private static long replacePosition(int[] table,
 long p,
 Object src,
 long srcOffset)

matchLength

private static int matchLength(Object src,
 long pIn,
 long pMatch,
 long pInLimit)

wildCopy

private static void wildCopy(Object src,
 long srcOffset,
 Object dst,
 long dstOffset,
 long dstEnd)

compress16

private static int compress16(Object src,
 long srcOffset,
 Object dst,
 long dstOffset,
 int inputSize)

compress32

private static int compress32(Object src,
 long srcOffset,
 Object dst,
 long dstOffset,
 int inputSize)

decompress

private static int decompress(Object src,
 long srcOffset,
 Object dst,
 long dstOffset,
 int inputSize,
 int outputSize)

compress0

private static int compress0(byte[] src,
 long srcOffset,
 byte[] dst,
 long dstOffset,
 int length)

decompress0

private static int decompress0(byte[] src,
 long srcOffset,
 byte[] dst,
 long dstOffset,
 int length,
 int maxOutput)