Top Description Fields Constructors Methods

com.ning.compress.lzf.impl

public abstract Class UnsafeChunkEncoder

Class Inheritance

extends ChunkEncoder

java.lang.Object
com.ning.compress.lzf.ChunkEncoder
com.ning.compress.lzf.impl.UnsafeChunkEncoder

Known Direct Subclasses

com.ning.compress.lzf.impl.UnsafeChunkEncoderBE, com.ning.compress.lzf.impl.UnsafeChunkEncoderLE

Annotations

@SuppressWarnings:restriction

Imports

com.ning.compress.BufferRecycler, java.lang.reflect.Field, sun.misc.Unsafe, com.ning.compress.lzf.ChunkEncoder, .LZFChunk

ChunkEncoder implementation that handles actual encoding of individual chunks, using Sun's sun.misc.Unsafe functionality, which gives nice extra boost for speed.

Author: Tatu Saloranta ([email protected])

Field Summary

Modifier and Type	Field and Description
protected static final long	BYTE_ARRAY_OFFSET
protected static final long	BYTE_ARRAY_OFFSET_PLUS2
protected static final Unsafe	unsafe

Inherited from com.ning.compress.lzf.ChunkEncoder:: _encodeBuffer _hashModulo _hashTable _headerBuffer _recycler MAX_HASH_SIZE MAX_OFF MAX_REF MIN_BLOCK_TO_COMPRESS MIN_HASH_SIZE TAIL_LENGTH

Constructor Summary

Access	Constructor and Description
public	UnsafeChunkEncoder(int totalLength)
public	UnsafeChunkEncoder(int totalLength, boolean bogus)
public	UnsafeChunkEncoder(int totalLength, BufferRecycler bufferRecycler)
public	UnsafeChunkEncoder(int totalLength, BufferRecycler bufferRecycler, boolean bogus)

Method Summary

Modifier and Type	Method and Description
protected static final int	_copyFullLiterals(byte[] in, int inPos, byte[] out, int outPos)
protected static final int	_copyLongLiterals(byte[] in, int inPos, byte[] out, int outPos, int literals)
protected static final int	_copyPartialLiterals(byte[] in, int inPos, byte[] out, int outPos, int literals)
protected static final int	_findTailMatchLength(final byte[] in, int ptr1, int ptr2, final int maxPtr1)
protected static final int	_handleTail(byte[] in, int inPos, int inEnd, byte[] out, int outPos, int literals)

Inherited from com.ning.compress.lzf.ChunkEncoder:: appendEncodedChunk appendEncodedIfCompresses close encodeAndWriteChunk encodeAndWriteChunkIfCompresses encodeChunk encodeChunkIfCompresses getBufferRecycler hash tryCompress

Field Detail

BYTE_ARRAY_OFFSET	back to summary
protected static final long BYTE_ARRAY_OFFSET

BYTE_ARRAY_OFFSET_PLUS2	back to summary
protected static final long BYTE_ARRAY_OFFSET_PLUS2

unsafe	back to summary
protected static final Unsafe unsafe

Constructor Detail

UnsafeChunkEncoder	back to summary
public UnsafeChunkEncoder(int totalLength)

UnsafeChunkEncoder	back to summary
public UnsafeChunkEncoder(int totalLength, boolean bogus)

UnsafeChunkEncoder	back to summary
public UnsafeChunkEncoder(int totalLength, BufferRecycler bufferRecycler)

UnsafeChunkEncoder	back to summary
public UnsafeChunkEncoder(int totalLength, BufferRecycler bufferRecycler, boolean bogus)

Method Detail

_copyFullLiterals	back to summary
protected static final int _copyFullLiterals(byte[] in, int inPos, byte[] out, int outPos)

_copyLongLiterals	back to summary
protected static final int _copyLongLiterals(byte[] in, int inPos, byte[] out, int outPos, int literals)

_copyPartialLiterals	back to summary
protected static final int _copyPartialLiterals(byte[] in, int inPos, byte[] out, int outPos, int literals)

_findTailMatchLength	back to summary
protected static final int _findTailMatchLength(final byte[] in, int ptr1, int ptr2, final int maxPtr1)

_handleTail	back to summary
protected static final int _handleTail(byte[] in, int inPos, int inEnd, byte[] out, int outPos, int literals)