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refactor metadata extraction and add flag to preview for metadata
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Original file line number | Diff line number | Diff line change |
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from typing import Any | ||
import xarray | ||
import numpy | ||
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def extract_esgf_specific_fields(ds: xarray.Dataset) -> dict[str, Any]: | ||
return { | ||
"dataSourceDate": ds.attrs.get("creation_date", "UNKNOWN"), | ||
"datasetUrl": ds.attrs.get("further_info_url", "UNKNOWN"), | ||
"source": ds.attrs.get("source", "UNKNOWN"), | ||
"variableId": ds.attrs.get("variable_id", ""), | ||
} | ||
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def extract_metadata(ds: xarray.Dataset) -> dict[str, Any]: | ||
def extract_numpy_item(x): | ||
return x.item() if isinstance(x, numpy.generic) else x | ||
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return { | ||
"format": "netcdf", | ||
"dataStructure": { | ||
k: { | ||
"attrs": { | ||
ak: extract_numpy_item(ds[k].attrs[ak]) | ||
for ak in ds[k].attrs | ||
# _ChunkSizes is an unserializable ndarray, safely ignorable | ||
if ak != "_ChunkSizes" | ||
}, | ||
"indexes": list(ds[k].indexes.keys()), | ||
"coordinates": list(ds[k].coords.keys()), | ||
} | ||
for k in ds.variables.keys() | ||
}, | ||
"raw": {k: extract_numpy_item(ds.attrs[k]) for k in ds.attrs.keys()}, | ||
} |
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