Source code for airflow.providers.snowflake.assets.snowflake

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from __future__ import annotations

from typing import TYPE_CHECKING

from airflow.providers.common.compat.assets import Asset

if TYPE_CHECKING:
    from urllib.parse import SplitResult

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



[docs]
def sanitize_uri(uri: SplitResult) -> SplitResult:
    if not uri.netloc:
        raise ValueError("URI format snowflake:// must contain an account identifier")
    if len(uri.path.split("/")) != 4:  # Leading slash, database, schema, and table names.
        raise ValueError("URI format snowflake:// must contain database, schema, and table names")
    return uri




[docs]
def create_asset(*, account: str, database: str, schema: str, table: str, extra: dict | None = None) -> Asset:
    return Asset(uri=f"snowflake://{account}/{database}/{schema}/{table}", extra=extra)




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

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

    parsed = urlsplit(asset.uri)
    _, database, schema, table = parsed.path.split("/")  # Leading slash, database, schema, and table names.
    return OpenLineageDataset(namespace=f"snowflake://{parsed.netloc}", name=f"{database}.{schema}.{table}")