ZipRandomAccessFile Struct Reference

Factory to obtain an Arrow RandomAccessFile for a named entry inside a zip archive (or a direct file when the archive path is a directory). More...

#include <OpenMS/FORMAT/ZipRandomAccessFile.h>

Static Public Member Functions
static arrow::Result< std::shared_ptr< arrow::io::RandomAccessFile > >	Open (const String &archive_path, const String &entry_name, std::unique_ptr< File::TempDir > &temp_dir)

Detailed Description

Factory to obtain an Arrow RandomAccessFile for a named entry inside a zip archive (or a direct file when the archive path is a directory).

The implementation returns a RandomAccessFile which Arrow/Parquet can read from directly. For ZIP archives this currently uses libzip to open the archive and the named entry and exposes a RandomAccessFile backed by the libzip entry. When the provided archive path is a directory (unpacked layout), a regular Arrow ReadableFile is returned for the file on disk.

Returns an Arrow Result wrapping a shared_ptr to the RandomAccessFile.

Member Function Documentation

Open()

static arrow::Result< std::shared_ptr< arrow::io::RandomAccessFile > > Open ( const String &  archive_path, const String &  entry_name, std::unique_ptr< File::TempDir > &  temp_dir  )

static