snappy-java 1.1.10.5 · org.xerial.snappy.Snappy · APIdia, the JavaDoc alternative

Modifier and Type	Field and Description
private static SnappyApi	impl An instance of SnappyNative

Access	Constructor and Description
public	Snappy()

Method Summary

Modifier and Type	Method and Description
public static void	arrayCopy(Object pointer to the source array src, int byte offset in the source array offset, int the number of bytes to copy byteLength, Object pointer to the destination array dest, int byte offset in the destination array dest_offset) Copy bytes from source to destination
public static void	cleanUp() Clean up a temporary file (native lib) generated by snappy-java.
public static byte[]	Returns: the compressed byte array compress(byte[] the input data input) High-level API for compressing the input byte array.
public static int	Returns: byte size of the compressed data compress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset) Compress the input buffer content in [inputOffset, ...inputOffset+inputLength) then output to the specified output buffer.
public static int	Returns: byte size of the compressed data. compress(ByteBuffer buffer[pos() ... limit()) containing the input data uncompressed, ByteBuffer output of the compressed data. Uses range [pos()..]. compressed) Compress the content in the given input buffer.
public static byte[]	Returns: the compressed data compress(char[] input) Compress the input char array
public static byte[]	Returns: the compressed data compress(double[] input) Compress the input double array
public static byte[]	Returns: the compressed data compress(float[] input) Compress the input float array
public static byte[]	Returns: the compressed data compress(int[] input) Compress the input int array
public static byte[]	Returns: the compressed data compress(long[] input) Compress the input long array
public static byte[]	Returns: the compressed data compress(short[] input) Compress the input short array
public static byte[]	Returns: the compressed data compress(String s) Compress the input String
public static byte[]	Returns: the compressed data compress(String s, String encoding) Compress the input string using the given encoding
public static byte[]	Returns: the compressed data compress(String s, Charset encoding) Compress the input string using the given encoding
public static String	Returns: native library version getNativeLibraryVersion() Get the native library version of the snappy
pack-priv static void	init()
public static boolean	isValidCompressedBuffer(byte[] input, int offset, int length) Returns true iff the contents of compressed buffer [offset, offset+length) can be uncompressed successfully.
public static boolean	isValidCompressedBuffer(byte[] input) Returns true iff the contents of compressed buffer [offset, offset+length) can be uncompressed successfully.
public static boolean	isValidCompressedBuffer(ByteBuffer compressed) Returns true iff the contents of compressed buffer [pos() ...
public static boolean	isValidCompressedBuffer(long inputAddr, long offset, long length) Returns true iff the contents of compressed buffer [offset, offset+length) can be uncompressed successfully.
public static int	Returns: maximum byte size of the compressed data maxCompressedLength(int byte size of the data to compress byteSize) Get the maximum byte size needed for compressing data of the given byte size.
public static long	Returns: the compressed data size rawCompress(long input memory address inputAddr, long input byte size inputSize, long destination address of the compressed data destAddr) Zero-copy compress using memory addresses.
public static byte[]	Returns: compressed data rawCompress(Object input array. The input MUST be an array type data, int the input byte size byteSize) Compress the input data and produce a byte array of the uncompressed data
public static int	Returns: byte size of the compressed data rawCompress(Object input array. This MUST be a primitive array type input, int byte offset at the output array inputOffset, int byte length of the input data inputLength, byte[] output array. This MUST be a primitive array type output, int byte offset at the output array outputOffset) Compress the input buffer [offset,...
public static long	Returns: the uncompressed data size rawUncompress(long input memory address inputAddr, long input byte size inputSize, long destination address of the uncompressed data destAddr) Zero-copy decompress using memory addresses.
public static int	Returns: the byte size of the uncompressed data rawUncompress(byte[] input byte array input, int byte offset in the input byte array inputOffset, int byte length of the input data inputLength, Object output buffer, MUST be a primitive type array output, int byte offset in the output buffer outputOffset) Uncompress the content in the input buffer.
public static byte[]	Returns: the uncompressed byte array uncompress(byte[] input) High-level API for uncompressing the input byte array.
public static int	Returns: the byte size of the uncompressed data uncompress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset) Uncompress the content in the input buffer.
public static int	Returns: uncompressed data size uncompress(ByteBuffer buffer[pos() ... limit()) containing the input data compressed, ByteBuffer output of the the uncompressed data. It uses buffer[pos()..] uncompressed) Uncompress the content in the input buffer.
public static char[]	Returns: the uncompressed data uncompressCharArray(byte[] input) Uncompress the input data as char array
public static char[]	Returns: the uncompressed data uncompressCharArray(byte[] input, int offset, int length) Uncompress the input[offset, .., offset+length) as a char array
public static double[]	Returns: the uncompressed data uncompressDoubleArray(byte[] input) Uncompress the input as a double array
public static double[]	Returns: the uncompressed data uncompressDoubleArray(byte[] input, int offset, int length) Uncompress the input as a double array
public static int	Returns: uncompressed byte size of the the given input data uncompressedLength(byte[] input) Get the uncompressed byte size of the given compressed input.
public static int	Returns: uncompressed byte size of the the given input data uncompressedLength(byte[] input, int offset, int length) Get the uncompressed byte size of the given compressed input.
public static int	Returns: uncompressed byte length of the given input uncompressedLength(ByteBuffer input data [pos() ... limit()) compressed) Get the uncompressed byte size of the given compressed input.
public static long	Returns: uncompressed byte length of the given input uncompressedLength(long compressed data address inputAddr, long byte length of the input len) Get the uncompressed byte size of the given compressed input.
public static float[]	Returns: the uncompressed data uncompressFloatArray(byte[] input) Uncompress the input as a float array
public static float[]	Returns: the uncompressed data uncompressFloatArray(byte[] input, int offset, int length) Uncompress the input[offset, offset+length) as a float array
public static int[]	Returns: the uncompressed data uncompressIntArray(byte[] input) Uncompress the input data as an int array
public static int[]	Returns: the uncompressed data uncompressIntArray(byte[] input, int offset, int length) Uncompress the input[offset, offset+length) as an int array
public static long[]	Returns: the uncompressed data uncompressLongArray(byte[] input) Uncompress the input data as a long array
public static long[]	Returns: the uncompressed data uncompressLongArray(byte[] input, int offset, int length) Uncompress the input[offset, offset+length) as a long array
public static short[]	Returns: the uncompressed data uncompressShortArray(byte[] input) Uncompress the input as a short array
public static short[]	Returns: the uncompressed data uncompressShortArray(byte[] input, int offset, int length) Uncompress the input[offset, offset+length) as a short array
public static String	Returns: the uncompressed dasta uncompressString(byte[] input) Uncompress the input as a String
public static String	Returns: the uncompressed data uncompressString(byte[] input, int offset, int length) Uncompress the input[offset, offset+length) as a String
public static String	Returns: the uncompressed data uncompressString(byte[] input, int offset, int length, String encoding) Uncompress the input[offset, offset+length) as a String of the given encoding
public static String	Returns: the uncompressed data uncompressString(byte[] input, int offset, int length, Charset encoding) Uncompress the input[offset, offset+length) as a String of the given encoding
public static String	Returns: the uncompressed data uncompressString(byte[] input, String encoding) Uncompress the input as a String of the given encoding
public static String	Returns: the uncompressed data uncompressString(byte[] input, Charset encoding) Uncompress the input as a String of the given encoding

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

impl	back to summary
private static SnappyApi impl An instance of SnappyNative

Snappy	back to summary
public Snappy()

Method Detail

arrayCopy	back to summary
public static void arrayCopy(Object src, int offset, int byteLength, Object dest, int dest_offset) throws IOException Copy bytes from source to destination Parameters src:Object pointer to the source array offset:int byte offset in the source array byteLength:int the number of bytes to copy dest:Object pointer to the destination array dest_offset:int byte offset in the destination array

arrayCopy

back to summary

public static void arrayCopy(Object src, int offset, int byteLength, Object dest, int dest_offset) throws IOException

Copy bytes from source to destination

Parameters

src:Object: pointer to the source array
offset:int: byte offset in the source array
byteLength:int: the number of bytes to copy
dest:Object: pointer to the destination array
dest_offset:int: byte offset in the destination array

cleanUp	back to summary
public static void cleanUp() Clean up a temporary file (native lib) generated by snappy-java. General users do not need to call this method, since the native library extracted in snappy-java is deleted upon JVM termination (vie deleteOnExit()). This method is useful when using a J2EE container, which will restart servlet containers multiple times without restarting JVM.

compress back to summary

compress	back to summary
public static byte[] compress(byte[] input) throws IOException High-level API for compressing the input byte array. This method performs array copy to generate the result. If you want to reduce the memory copy cost, use `compress(byte[], int, int, byte[], int)` or `compress(ByteBuffer, ByteBuffer)`. Parameters input:byte[] the input data Returns:byte[] the compressed byte array

public static byte[] compress(byte[] input) throws IOException

High-level API for compressing the input byte array. This method performs array copy to generate the result. If you want to reduce the memory copy cost, use compress(byte[], int, int, byte[], int) or compress(ByteBuffer, ByteBuffer).

Parameters

input:byte[]: the input data

Returns:byte[]

the compressed byte array

compress	back to summary
public static int compress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset) throws IOException Compress the input buffer content in [inputOffset, ...inputOffset+inputLength) then output to the specified output buffer. Returns:int byte size of the compressed data Exceptions IOException: when failed to access the input/output buffer

compress

back to summary

public static int compress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset) throws IOException

Compress the input buffer content in [inputOffset, ...inputOffset+inputLength) then output to the specified output buffer.

Returns:int

byte size of the compressed data

Exceptions

IOException:: when failed to access the input/output buffer

compress	back to summary
public static int compress(ByteBuffer uncompressed, ByteBuffer compressed) throws IOException Compress the content in the given input buffer. After the compression, you can retrieve the compressed data from the output buffer [pos() ... limit()) (compressed data size = limit() - pos() = remaining()) Parameters uncompressed:ByteBuffer buffer[pos() ... limit()) containing the input data compressed:ByteBuffer output of the compressed data. Uses range [pos()..]. Returns:int byte size of the compressed data. Exceptions SnappyError: when the input is not a direct buffer

compress

back to summary

public static int compress(ByteBuffer uncompressed, ByteBuffer compressed) throws IOException

Compress the content in the given input buffer. After the compression, you can retrieve the compressed data from the output buffer [pos() ... limit()) (compressed data size = limit() - pos() = remaining())

Parameters

uncompressed:ByteBuffer: buffer[pos() ... limit()) containing the input data
compressed:ByteBuffer: output of the compressed data. Uses range [pos()..].

Returns:int

byte size of the compressed data.

Exceptions

SnappyError:: when the input is not a direct buffer

compress	back to summary
public static byte[] compress(char[] input) throws IOException Compress the input char array Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(char[] input) throws IOException

Compress the input char array

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(double[] input) throws IOException Compress the input double array Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(double[] input) throws IOException

Compress the input double array

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(float[] input) throws IOException Compress the input float array Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(float[] input) throws IOException

Compress the input float array

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(int[] input) throws IOException Compress the input int array Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(int[] input) throws IOException

Compress the input int array

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(long[] input) throws IOException Compress the input long array Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(long[] input) throws IOException

Compress the input long array

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(short[] input) throws IOException Compress the input short array Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(short[] input) throws IOException

Compress the input short array

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(String s) throws IOException Compress the input String Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(String s) throws IOException

Compress the input String

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(String s, String encoding) throws UnsupportedEncodingException, IOException Compress the input string using the given encoding Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(String s, String encoding) throws UnsupportedEncodingException, IOException

Compress the input string using the given encoding

Returns:byte[]: the compressed data

compress	back to summary
public static byte[] compress(String s, Charset encoding) throws IOException Compress the input string using the given encoding Returns:byte[] the compressed data

compress

back to summary

public static byte[] compress(String s, Charset encoding) throws IOException

Compress the input string using the given encoding

Returns:byte[]: the compressed data

getNativeLibraryVersion	back to summary
public static String getNativeLibraryVersion() Get the native library version of the snappy Returns:String native library version

getNativeLibraryVersion

back to summary

public static String getNativeLibraryVersion()

Get the native library version of the snappy

Returns:String: native library version

init	back to summary
pack-priv static void init()

isValidCompressedBuffer	back to summary
public static boolean isValidCompressedBuffer(byte[] input, int offset, int length) throws IOException Returns true iff the contents of compressed buffer [offset, offset+length) can be uncompressed successfully. Does not return the uncompressed data. Takes time proportional to the input length, but is usually at least a factor of four faster than actual decompression.

isValidCompressedBuffer	back to summary
public static boolean isValidCompressedBuffer(byte[] input) throws IOException Returns true iff the contents of compressed buffer [offset, offset+length) can be uncompressed successfully. Does not return the uncompressed data. Takes time proportional to the input length, but is usually at least a factor of four faster than actual decompression.

isValidCompressedBuffer	back to summary
public static boolean isValidCompressedBuffer(ByteBuffer compressed) throws IOException Returns true iff the contents of compressed buffer [pos() ... limit()) can be uncompressed successfully. Does not return the uncompressed data. Takes time proportional to the input length, but is usually at least a factor of four faster than actual decompression.

isValidCompressedBuffer	back to summary
public static boolean isValidCompressedBuffer(long inputAddr, long offset, long length) throws IOException Returns true iff the contents of compressed buffer [offset, offset+length) can be uncompressed successfully. Does not return the uncompressed data. Takes time proportional to the input length, but is usually at least a factor of four faster than actual decompression.

maxCompressedLength	back to summary
public static int maxCompressedLength(int byteSize) Get the maximum byte size needed for compressing data of the given byte size. Parameters byteSize:int byte size of the data to compress Returns:int maximum byte size of the compressed data

maxCompressedLength

back to summary

public static int maxCompressedLength(int byteSize)

Get the maximum byte size needed for compressing data of the given byte size.

Parameters

byteSize:int: byte size of the data to compress

Returns:int

maximum byte size of the compressed data

rawCompress	back to summary
public static long rawCompress(long inputAddr, long inputSize, long destAddr) throws IOException Zero-copy compress using memory addresses. Parameters inputAddr:long input memory address inputSize:long input byte size destAddr:long destination address of the compressed data Returns:long the compressed data size

rawCompress

back to summary

public static long rawCompress(long inputAddr, long inputSize, long destAddr) throws IOException

Zero-copy compress using memory addresses.

Parameters

inputAddr:long: input memory address
inputSize:long: input byte size
destAddr:long: destination address of the compressed data

Returns:long

the compressed data size

rawCompress	back to summary
public static byte[] rawCompress(Object data, int byteSize) throws IOException Compress the input data and produce a byte array of the uncompressed data Parameters data:Object input array. The input MUST be an array type byteSize:int the input byte size Returns:byte[] compressed data

rawCompress

back to summary

public static byte[] rawCompress(Object data, int byteSize) throws IOException

Compress the input data and produce a byte array of the uncompressed data

Parameters

data:Object: input array. The input MUST be an array type
byteSize:int: the input byte size

Returns:byte[]

compressed data

rawCompress	back to summary
public static int rawCompress(Object input, int inputOffset, int inputLength, byte[] output, int outputOffset) throws IOException Compress the input buffer [offset,... ,offset+length) contents, then write the compressed data to the output buffer[offset, ...) Parameters input:Object input array. This MUST be a primitive array type inputOffset:int byte offset at the output array inputLength:int byte length of the input data output:byte[] output array. This MUST be a primitive array type outputOffset:int byte offset at the output array Returns:int byte size of the compressed data

rawCompress

back to summary

public static int rawCompress(Object input, int inputOffset, int inputLength, byte[] output, int outputOffset) throws IOException

Compress the input buffer [offset,... ,offset+length) contents, then write the compressed data to the output buffer[offset, ...)

Parameters

input:Object: input array. This MUST be a primitive array type
inputOffset:int: byte offset at the output array
inputLength:int: byte length of the input data
output:byte[]: output array. This MUST be a primitive array type
outputOffset:int: byte offset at the output array

Returns:int

byte size of the compressed data

rawUncompress	back to summary
public static long rawUncompress(long inputAddr, long inputSize, long destAddr) throws IOException Zero-copy decompress using memory addresses. Parameters inputAddr:long input memory address inputSize:long input byte size destAddr:long destination address of the uncompressed data Returns:long the uncompressed data size

rawUncompress

back to summary

public static long rawUncompress(long inputAddr, long inputSize, long destAddr) throws IOException

Zero-copy decompress using memory addresses.

Parameters

inputAddr:long: input memory address
inputSize:long: input byte size
destAddr:long: destination address of the uncompressed data

Returns:long

the uncompressed data size

rawUncompress back to summary

rawUncompress	back to summary
public static int rawUncompress(byte[] input, int inputOffset, int inputLength, Object output, int outputOffset) throws IOException Uncompress the content in the input buffer. The uncompressed data is written to the output buffer. Note that if you pass the wrong data or the range [inputOffset, inputOffset + inputLength) that cannot be uncompressed, your JVM might crash due to the access violation exception issued in the native code written in C++. To avoid this type of crash, use `isValidCompressedBuffer(byte[], int, int)` first. Parameters input:byte[] input byte array inputOffset:int byte offset in the input byte array inputLength:int byte length of the input data output:Object output buffer, MUST be a primitive type array outputOffset:int byte offset in the output buffer Returns:int the byte size of the uncompressed data Exceptions IOException: when failed to uncompress the input data

public static int rawUncompress(byte[] input, int inputOffset, int inputLength, Object output, int outputOffset) throws IOException

Uncompress the content in the input buffer. The uncompressed data is written to the output buffer.

Note that if you pass the wrong data or the range [inputOffset, inputOffset + inputLength) that cannot be uncompressed, your JVM might crash due to the access violation exception issued in the native code written in C++. To avoid this type of crash, use isValidCompressedBuffer(byte[], int, int) first.

Parameters

input:byte[]: input byte array
inputOffset:int: byte offset in the input byte array
inputLength:int: byte length of the input data
output:Object: output buffer, MUST be a primitive type array
outputOffset:int: byte offset in the output buffer

Returns:int

the byte size of the uncompressed data

Exceptions

IOException:: when failed to uncompress the input data

uncompress	back to summary
public static byte[] uncompress(byte[] input) throws IOException High-level API for uncompressing the input byte array. Returns:byte[] the uncompressed byte array

uncompress

back to summary

public static byte[] uncompress(byte[] input) throws IOException

High-level API for uncompressing the input byte array.

Returns:byte[]: the uncompressed byte array

uncompress back to summary

uncompress	back to summary
public static int uncompress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset) throws IOException Uncompress the content in the input buffer. The uncompressed data is written to the output buffer. Note that if you pass the wrong data or the range [inputOffset, inputOffset + inputLength) that cannot be uncompressed, your JVM might crash due to the access violation exception issued in the native code written in C++. To avoid this type of crash, use `isValidCompressedBuffer(byte[], int, int)` first. Returns:int the byte size of the uncompressed data

public static int uncompress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset) throws IOException

Uncompress the content in the input buffer. The uncompressed data is written to the output buffer.

Returns:int: the byte size of the uncompressed data

uncompress back to summary

uncompress	back to summary
public static int uncompress(ByteBuffer compressed, ByteBuffer uncompressed) throws IOException Uncompress the content in the input buffer. The result is dumped to the specified output buffer. Note that if you pass the wrong data or the range [pos(), limit()) that cannot be uncompressed, your JVM might crash due to the access violation exception issued in the native code written in C++. To avoid this type of crash, use `isValidCompressedBuffer(ByteBuffer)` first. Parameters compressed:ByteBuffer buffer[pos() ... limit()) containing the input data uncompressed:ByteBuffer output of the the uncompressed data. It uses buffer[pos()..] Returns:int uncompressed data size Exceptions IOException: when failed to uncompress the given input SnappyError: when the input is not a direct buffer

public static int uncompress(ByteBuffer compressed, ByteBuffer uncompressed) throws IOException

Uncompress the content in the input buffer. The result is dumped to the specified output buffer.

Note that if you pass the wrong data or the range [pos(), limit()) that cannot be uncompressed, your JVM might crash due to the access violation exception issued in the native code written in C++. To avoid this type of crash, use isValidCompressedBuffer(ByteBuffer) first.

Parameters

compressed:ByteBuffer: buffer[pos() ... limit()) containing the input data
uncompressed:ByteBuffer: output of the the uncompressed data. It uses buffer[pos()..]

Returns:int

uncompressed data size

Exceptions

IOException:: when failed to uncompress the given input
SnappyError:: when the input is not a direct buffer

uncompressCharArray	back to summary
public static char[] uncompressCharArray(byte[] input) throws IOException Uncompress the input data as char array Returns:char[] the uncompressed data

uncompressCharArray

back to summary

public static char[] uncompressCharArray(byte[] input) throws IOException

Uncompress the input data as char array

Returns:char[]: the uncompressed data

uncompressCharArray	back to summary
public static char[] uncompressCharArray(byte[] input, int offset, int length) throws IOException Uncompress the input[offset, .., offset+length) as a char array Returns:char[] the uncompressed data

uncompressCharArray

back to summary

public static char[] uncompressCharArray(byte[] input, int offset, int length) throws IOException

Uncompress the input[offset, .., offset+length) as a char array

Returns:char[]: the uncompressed data

uncompressDoubleArray	back to summary
public static double[] uncompressDoubleArray(byte[] input) throws IOException Uncompress the input as a double array Returns:double[] the uncompressed data

uncompressDoubleArray

back to summary

public static double[] uncompressDoubleArray(byte[] input) throws IOException

Uncompress the input as a double array

Returns:double[]: the uncompressed data

uncompressDoubleArray	back to summary
public static double[] uncompressDoubleArray(byte[] input, int offset, int length) throws IOException Uncompress the input as a double array Returns:double[] the uncompressed data

uncompressDoubleArray

back to summary

public static double[] uncompressDoubleArray(byte[] input, int offset, int length) throws IOException

Uncompress the input as a double array

Returns:double[]: the uncompressed data

uncompressedLength back to summary

uncompressedLength	back to summary
public static int uncompressedLength(byte[] input) throws IOException Get the uncompressed byte size of the given compressed input. This operation takes O(1) time. Returns:int uncompressed byte size of the the given input data Exceptions IOException: when failed to uncompress the given input. The error code is `SnappyErrorCode#PARSING_ERROR`

public static int uncompressedLength(byte[] input) throws IOException

Get the uncompressed byte size of the given compressed input. This operation takes O(1) time.

Returns:int

uncompressed byte size of the the given input data

Exceptions

IOException:: when failed to uncompress the given input. The error code is SnappyErrorCode#PARSING_ERROR

uncompressedLength back to summary

uncompressedLength	back to summary
public static int uncompressedLength(byte[] input, int offset, int length) throws IOException Get the uncompressed byte size of the given compressed input. This operation takes O(1) time. Returns:int uncompressed byte size of the the given input data Exceptions IOException: when failed to uncompress the given input. The error code is `SnappyErrorCode#PARSING_ERROR`

public static int uncompressedLength(byte[] input, int offset, int length) throws IOException

Get the uncompressed byte size of the given compressed input. This operation takes O(1) time.

Returns:int

uncompressed byte size of the the given input data

Exceptions

IOException:: when failed to uncompress the given input. The error code is SnappyErrorCode#PARSING_ERROR

uncompressedLength back to summary

uncompressedLength	back to summary
public static int uncompressedLength(ByteBuffer compressed) throws IOException Get the uncompressed byte size of the given compressed input. This operation takes O(1) time. Parameters compressed:ByteBuffer input data [pos() ... limit()) Returns:int uncompressed byte length of the given input Exceptions IOException: when failed to uncompress the given input. The error code is `SnappyErrorCode#PARSING_ERROR` SnappyError: when the input is not a direct buffer

public static int uncompressedLength(ByteBuffer compressed) throws IOException

Get the uncompressed byte size of the given compressed input. This operation takes O(1) time.

Parameters

compressed:ByteBuffer: input data [pos() ... limit())

Returns:int

uncompressed byte length of the given input

Exceptions

IOException:: when failed to uncompress the given input. The error code is SnappyErrorCode#PARSING_ERROR
SnappyError:: when the input is not a direct buffer

uncompressedLength back to summary

uncompressedLength	back to summary
public static long uncompressedLength(long inputAddr, long len) throws IOException Get the uncompressed byte size of the given compressed input. This operation takes O(1) time. Parameters inputAddr:long compressed data address len:long byte length of the input Returns:long uncompressed byte length of the given input Exceptions IOException: when failed to uncompress the given input. The error code is `SnappyErrorCode#PARSING_ERROR`

public static long uncompressedLength(long inputAddr, long len) throws IOException

Get the uncompressed byte size of the given compressed input. This operation takes O(1) time.

Parameters

inputAddr:long: compressed data address
len:long: byte length of the input

Returns:long

uncompressed byte length of the given input

Exceptions

IOException:: when failed to uncompress the given input. The error code is SnappyErrorCode#PARSING_ERROR

uncompressFloatArray	back to summary
public static float[] uncompressFloatArray(byte[] input) throws IOException Uncompress the input as a float array Returns:float[] the uncompressed data

uncompressFloatArray

back to summary

public static float[] uncompressFloatArray(byte[] input) throws IOException

Uncompress the input as a float array

Returns:float[]: the uncompressed data

uncompressFloatArray	back to summary
public static float[] uncompressFloatArray(byte[] input, int offset, int length) throws IOException Uncompress the input[offset, offset+length) as a float array Returns:float[] the uncompressed data

uncompressFloatArray

back to summary

public static float[] uncompressFloatArray(byte[] input, int offset, int length) throws IOException

Uncompress the input[offset, offset+length) as a float array

Returns:float[]: the uncompressed data

uncompressIntArray	back to summary
public static int[] uncompressIntArray(byte[] input) throws IOException Uncompress the input data as an int array Returns:int[] the uncompressed data

uncompressIntArray

back to summary

public static int[] uncompressIntArray(byte[] input) throws IOException

Uncompress the input data as an int array

Returns:int[]: the uncompressed data

uncompressIntArray	back to summary
public static int[] uncompressIntArray(byte[] input, int offset, int length) throws IOException Uncompress the input[offset, offset+length) as an int array Returns:int[] the uncompressed data

uncompressIntArray

back to summary

public static int[] uncompressIntArray(byte[] input, int offset, int length) throws IOException

Uncompress the input[offset, offset+length) as an int array

Returns:int[]: the uncompressed data

uncompressLongArray	back to summary
public static long[] uncompressLongArray(byte[] input) throws IOException Uncompress the input data as a long array Returns:long[] the uncompressed data

uncompressLongArray

back to summary

public static long[] uncompressLongArray(byte[] input) throws IOException

Uncompress the input data as a long array

Returns:long[]: the uncompressed data

uncompressLongArray	back to summary
public static long[] uncompressLongArray(byte[] input, int offset, int length) throws IOException Uncompress the input[offset, offset+length) as a long array Returns:long[] the uncompressed data

uncompressLongArray

back to summary

public static long[] uncompressLongArray(byte[] input, int offset, int length) throws IOException

Uncompress the input[offset, offset+length) as a long array

Returns:long[]: the uncompressed data

uncompressShortArray	back to summary
public static short[] uncompressShortArray(byte[] input) throws IOException Uncompress the input as a short array Returns:short[] the uncompressed data

uncompressShortArray

back to summary

public static short[] uncompressShortArray(byte[] input) throws IOException

Uncompress the input as a short array

Returns:short[]: the uncompressed data

uncompressShortArray	back to summary
public static short[] uncompressShortArray(byte[] input, int offset, int length) throws IOException Uncompress the input[offset, offset+length) as a short array Returns:short[] the uncompressed data

uncompressShortArray

back to summary

public static short[] uncompressShortArray(byte[] input, int offset, int length) throws IOException

Uncompress the input[offset, offset+length) as a short array

Returns:short[]: the uncompressed data

uncompressString

back to summary

public static String uncompressString(byte[] input) throws IOException

Uncompress the input as a String

Returns:String: the uncompressed dasta

uncompressString

back to summary

public static String uncompressString(byte[] input, int offset, int length) throws IOException

Uncompress the input[offset, offset+length) as a String

Returns:String: the uncompressed data

uncompressString

back to summary

public static String uncompressString(byte[] input, int offset, int length, String encoding) throws IOException, UnsupportedEncodingException

Uncompress the input[offset, offset+length) as a String of the given encoding

Returns:String: the uncompressed data

uncompressString

back to summary

public static String uncompressString(byte[] input, int offset, int length, Charset encoding) throws IOException, UnsupportedEncodingException

Uncompress the input[offset, offset+length) as a String of the given encoding

Returns:String: the uncompressed data

uncompressString

back to summary

public static String uncompressString(byte[] input, String encoding) throws IOException, UnsupportedEncodingException

Uncompress the input as a String of the given encoding

Returns:String: the uncompressed data

uncompressString

back to summary

public static String uncompressString(byte[] input, Charset encoding) throws IOException, UnsupportedEncodingException

Uncompress the input as a String of the given encoding

Returns:String: the uncompressed data

public Class Snappy

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail