#pragma once #include namespace DB { class CompressionCodecMultiple final : public ICompressionCodec { public: CompressionCodecMultiple() = default; /// Need for CompressionFactory to register codec by method byte. explicit CompressionCodecMultiple(Codecs codecs_); uint8_t getMethodByte() const override; UInt32 getMaxCompressedDataSize(UInt32 uncompressed_size) const override; static std::vector getCodecsBytesFromData(const char * source); void updateHash(SipHash & hash) const override; protected: UInt32 doCompressData(const char * source, UInt32 source_size, char * dest) const override; void doDecompressData(const char * source, UInt32 source_size, char * dest, UInt32 decompressed_size) const override; bool isCompression() const override; bool isGenericCompression() const override { return false; } private: Codecs codecs; }; }