de.jarnbjo.jsnappy

Class SnappyDecompressor

java.lang.Object

de.jarnbjo.jsnappy.SnappyDecompressor

public class SnappyDecompressor
extends Object

This class provide utility methods for decompressing data blocks using the Snappy algorithm.

Since:

1.0

Author:

Tor-Einar Jarnbjo

Method Summary

Methods

Modifier and Type	Method and Description
static Buffer	decompress(Buffer in) Equivalent to decompress(in.getData(), 0, in.getLength(), null).
static Buffer	decompress(Buffer in, Buffer out) Equivalent to decompress(in.getData(), 0, in.getLength(), out).
static Buffer	decompress(byte[] in) Equivalent to decompress(in, 0, in.length, null).
static Buffer	decompress(byte[] in, Buffer out) Equivalent to decompress(in, 0, in.length, out).
static Buffer	decompress(byte[] in, int offset, int length) Equivalent to decompress(in, offset, length, null).
static Buffer	decompress(byte[] in, int offset, int length, Buffer out) Decompress the data contained in in from offset and length bytes.

Methods inherited from class java.lang.Object

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

Method Detail

decompress

public static Buffer decompress(byte[] in)

Equivalent to decompress(in, 0, in.length, null).

Parameters:

in - compressed data block

Returns:

decompressed data block

decompress

public static Buffer decompress(byte[] in,
                Buffer out)

Equivalent to decompress(in, 0, in.length, out).

Parameters:

in - compressed data block

out - Buffer for decompressed data block

Returns:

reference to out

decompress

public static Buffer decompress(byte[] in,
                int offset,
                int length)

Equivalent to decompress(in, offset, length, null).

Parameters:

in - byte array containing the compressed data block

offset - offset in in, on which decoding is started

length - length of compressed data block

Returns:

decompressed data block

decompress

public static Buffer decompress(Buffer in)

Equivalent to decompress(in.getData(), 0, in.getLength(), null).

Parameters:

in - compressed data block

Returns:

decompressed data block

decompress

public static Buffer decompress(Buffer in,
                Buffer out)

Equivalent to decompress(in.getData(), 0, in.getLength(), out).

Parameters:

in - compressed data block

out - Buffer for decompressed data block

Returns:

reference to out

decompress

public static Buffer decompress(byte[] in,
                int offset,
                int length,
                Buffer out)
                         throws FormatViolationException

Decompress the data contained in in from offset and length bytes. If an output buffer is provided, the buffer is reused for the decompressed data. If the buffer is too small, its capacity is expanded to fit the result. If a null argument is passed, a new buffer is allocated.

Parameters:

in -

offset -

length -

out -

Returns:

Throws:

FormatViolationException - if the input data is invalid