org.apache.flink.runtime.io.compression

Class AirBlockDecompressor

java.lang.Object

org.apache.flink.runtime.io.compression.AirBlockDecompressor

All Implemented Interfaces:

BlockDecompressor

public class AirBlockDecompressor
extends Object
implements BlockDecompressor

Flink decompressor that wraps Decompressor.

Constructor Summary

Constructors

Constructor and Description
AirBlockDecompressor(io.airlift.compress.Decompressor internalDecompressor)

Method Summary

Modifier and Type	Method and Description
int	decompress(byte[] src, int srcOff, int srcLen, byte[] dst, int dstOff) Decompress source data read from src and write the decompressed data to dst.
int	decompress(ByteBuffer src, int srcOff, int srcLen, ByteBuffer dst, int dstOff) Decompress source data read from (Buffer.position() + srcOff), and write the decompressed data to dst.

Methods inherited from class java.lang.Object

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

Constructor Detail

AirBlockDecompressor

public AirBlockDecompressor(io.airlift.compress.Decompressor internalDecompressor)

Method Detail

decompress

public int decompress(ByteBuffer src,
                      int srcOff,
                      int srcLen,
                      ByteBuffer dst,
                      int dstOff)
               throws BufferDecompressionException

Description copied from interface: BlockDecompressor

Decompress source data read from (Buffer.position() + srcOff), and write the decompressed data to dst.

Specified by:

decompress in interface BlockDecompressor

Parameters:

src - Compressed data to read from

srcOff - The start offset of compressed data

srcLen - The length of data which want to be decompressed

dst - The target to write decompressed data

dstOff - The start offset to write the decompressed data

Returns:

Length of decompressed data

Throws:

BufferDecompressionException - if exception thrown when decompressing

decompress

public int decompress(byte[] src,
                      int srcOff,
                      int srcLen,
                      byte[] dst,
                      int dstOff)
               throws BufferDecompressionException

Description copied from interface: BlockDecompressor

Decompress source data read from src and write the decompressed data to dst.

Specified by:

decompress in interface BlockDecompressor

Parameters:

src - Compressed data to read from

srcOff - The start offset of compressed data

srcLen - The length of data which want to be decompressed

dst - The target to write decompressed data

dstOff - The start offset to write the decompressed data

Returns:

Length of decompressed data

Throws:

BufferDecompressionException - if exception thrown when decompressing