Compress-LZF 1.1.2 · com.ning.compress.lzf.LZFDecoder

Decoder that handles decoding of sequence of encoded LZF chunks, combining them into a single contiguous result byte array. This class has been mostly replaced by ChunkDecoder, although static methods are left here and may still be used for convenience. All static methods use ChunkDecoderFactory#optimalInstance to find actual ChunkDecoder instance to use.

Field Summary

Modifier and Type	Field and Description
protected static final AtomicReference<ChunkDecoder>	_fastDecoderRef Lazily initialized "fast" instance that may use `sun.misc.Unsafe` to speed up decompression
protected static final AtomicReference<ChunkDecoder>	_safeDecoderRef Lazily initialized "safe" instance that DOES NOT use `sun.misc.Unsafe` for decompression, just standard JDK functionality.

Constructor Summary

Access	Constructor and Description
public	LZFDecoder()

Method Summary

Modifier and Type	Method and Description
public static int	calculateUncompressedSize(byte[] data, int offset, int length) Helper method that checks resulting size of an LZF chunk, regardless of whether it contains compressed or uncompressed contents.
public static byte[]	decode(final byte[] inputBuffer)
public static byte[]	decode(final byte[] inputBuffer, int offset, int length)
public static int	decode(final byte[] inputBuffer, final byte[] targetBuffer)
public static int	decode(final byte[] sourceBuffer, int offset, int length, final byte[] targetBuffer)
public static ChunkDecoder	fastDecoder() Accessor method that can be used to obtain `ChunkDecoder` that uses all possible optimization methods available, including `sun.misc.Unsafe` for memory access.
public static byte[]	safeDecode(final byte[] inputBuffer)
public static byte[]	safeDecode(final byte[] inputBuffer, int offset, int length)
public static int	safeDecode(final byte[] inputBuffer, final byte[] targetBuffer)
public static int	safeDecode(final byte[] sourceBuffer, int offset, int length, final byte[] targetBuffer)
public static ChunkDecoder	safeDecoder() Accessor method that can be used to obtain `ChunkDecoder` that only uses standard JDK access methods, and should work on all Java platforms and JVMs.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

_fastDecoderRef	back to summary
protected static final AtomicReference<ChunkDecoder> _fastDecoderRef Lazily initialized "fast" instance that may use `sun.misc.Unsafe` to speed up decompression

_safeDecoderRef	back to summary
protected static final AtomicReference<ChunkDecoder> _safeDecoderRef Lazily initialized "safe" instance that DOES NOT use `sun.misc.Unsafe` for decompression, just standard JDK functionality.

Constructor Detail

LZFDecoder	back to summary
public LZFDecoder()

Method Detail

calculateUncompressedSize	back to summary
public static int calculateUncompressedSize(byte[] data, int offset, int length) throws LZFException Helper method that checks resulting size of an LZF chunk, regardless of whether it contains compressed or uncompressed contents.

decode	back to summary
public static byte[] decode(final byte[] inputBuffer) throws LZFException

decode	back to summary
public static byte[] decode(final byte[] inputBuffer, int offset, int length) throws LZFException

decode	back to summary
public static int decode(final byte[] inputBuffer, final byte[] targetBuffer) throws LZFException

decode	back to summary
public static int decode(final byte[] sourceBuffer, int offset, int length, final byte[] targetBuffer) throws LZFException

fastDecoder	back to summary
public static ChunkDecoder fastDecoder() Accessor method that can be used to obtain `ChunkDecoder` that uses all possible optimization methods available, including `sun.misc.Unsafe` for memory access.

safeDecode	back to summary
public static byte[] safeDecode(final byte[] inputBuffer) throws LZFException

safeDecode	back to summary
public static byte[] safeDecode(final byte[] inputBuffer, int offset, int length) throws LZFException

safeDecode	back to summary
public static int safeDecode(final byte[] inputBuffer, final byte[] targetBuffer) throws LZFException

safeDecode	back to summary
public static int safeDecode(final byte[] sourceBuffer, int offset, int length, final byte[] targetBuffer) throws LZFException

safeDecoder	back to summary
public static ChunkDecoder safeDecoder() Accessor method that can be used to obtain `ChunkDecoder` that only uses standard JDK access methods, and should work on all Java platforms and JVMs.