Source code for airflow.providers.common.io.assets.file

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from __future__ import annotations

import urllib.parse
from typing import TYPE_CHECKING

try:
    from airflow.assets import Asset
except ModuleNotFoundError:
    from airflow.datasets import Dataset as Asset  # type: ignore[no-redef]

if TYPE_CHECKING:
    from urllib.parse import SplitResult

    from airflow.providers.common.compat.openlineage.facet import Dataset as OpenLineageDataset


[docs]def create_asset(*, path: str, extra=None) -> Asset:
    # We assume that we get absolute path starting with /
    return Asset(uri=f"file://{path}", extra=extra)


[docs]def sanitize_uri(uri: SplitResult) -> SplitResult:
    if not uri.path:
        raise ValueError("URI format file:// must contain a non-empty path.")
    return uri


[docs]def convert_asset_to_openlineage(asset: Asset, lineage_context) -> OpenLineageDataset:
    """
    Translate Asset with valid AIP-60 uri to OpenLineage with assistance from the context.

    Windows paths are not standardized and can produce unexpected behaviour.
    """
    from airflow.providers.common.compat.openlineage.facet import Dataset as OpenLineageDataset

    parsed = urllib.parse.urlsplit(asset.uri)
    return OpenLineageDataset(namespace=f"file://{parsed.netloc}", name=parsed.path)