eoio.readers.sentinel2.metadata.extractor module

eoio.readers.sentinel2.metadata.extractor- extractor class for Sentinel-2 MSI metadata.

class eoio.readers.sentinel2.metadata.extractor.S2MSIMetadataExtractor(reader)

Bases: BaseMetadataExtractor

High-level metadata extractor for Sentinel-2 MSI products.

This class orchestrates metadata extraction from both Sentinel-2 product- level metadata (MTD_MSIL1C.xml / MTD_MSIL2A.xml) and tile-level metadata (MTD_TL.xml), and exposes the results as structured Python dictionaries suitable for downstream use (e.g. MetEOR tools).

It delegates low-level XML parsing to S2ProdXMLReader and S2TLXMLReader.

get_basic_metadata() → dict

Return high-level, product-wide metadata.

This metadata is intended for discovery, cataloguing, and general product description, and is shared across all variables in the dataset.

Returns:

Dictionary containing basic Sentinel-2 product metadata.

get_product_metadata() → dict

Return detailed product- and tile-level metadata.

This metadata captures acquisition context, quality indicators, and tile identifiers that are not variable-specific.

Returns:

Dictionary containing Sentinel-2 product metadata.

get_variable_basic_metadata(var: str) → dict

Return basic descriptive metadata for a dataset variable.

This method is intended for lightweight metadata such as units, names, or CF-style descriptors. It is currently a placeholder.

Parameters:

var – Variable name for which metadata should be extracted.

Returns:

Dictionary containing basic variable metadata.

get_variable_product_metadata(var: str) → dict

Return detailed metadata for a specific Sentinel-2 band variable.

This includes spatial characteristics, radiometric calibration parameters, and tile geometry information relevant to the band.

Parameters:

var – Variable name corresponding to a Sentinel-2 band (e.g. "B02").

Returns:

Dictionary containing variable-specific metadata.

Raises:

KeyError – If var is not a recognised Sentinel-2 band.