程序包 org.apache.pulsar.common.compression

接口 CompressionCodec

所有已知实现类:

CompressionCodecLZ4, CompressionCodecNone, CompressionCodecSnappy, CompressionCodecZLib, CompressionCodecZstd

public interface CompressionCodec

Generic compression codec interface.

方法概要

修饰符和类型	方法	说明
io.netty.buffer.ByteBuf	decode(io.netty.buffer.ByteBuf encoded, int uncompressedSize)	Decompress a buffer.
io.netty.buffer.ByteBuf	encode(io.netty.buffer.ByteBuf raw)	Compress a buffer.

方法详细资料

encode

io.netty.buffer.ByteBuf encode(io.netty.buffer.ByteBuf raw)

Compress a buffer.

参数:

raw - a buffer with the uncompressed content. The reader/writer indexes will not be modified

返回:

a new buffer with the compressed content. The buffer needs to be released by the receiver

decode

io.netty.buffer.ByteBuf decode(io.netty.buffer.ByteBuf encoded,
 int uncompressedSize)
                        throws IOException

Decompress a buffer.

The buffer needs to have been compressed with the matching Encoder.

参数:

encoded - the compressed content

uncompressedSize - the size of the original content

返回:

a ByteBuf with the compressed content. The buffer needs to be released by the receiver

抛出:

IOException - if the decompression fails