Source code for airflow.providers.microsoft.azure.utils

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#   http://www.apache.org/licenses/LICENSE-2.0
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from __future__ import annotations

import warnings


[docs]def get_field(*, conn_id: str, conn_type: str, extras: dict, field_name: str):
    """Get field from extra, first checking short name, then for backcompat we check for prefixed name."""
    backcompat_prefix = f"extra__{conn_type}__"
    backcompat_key = f"{backcompat_prefix}{field_name}"
    ret = None
    if field_name.startswith("extra__"):
        raise ValueError(
            f"Got prefixed name {field_name}; please remove the '{backcompat_prefix}' prefix "
            "when using this method."
        )
    if field_name in extras:
        if backcompat_key in extras:
            warnings.warn(
                f"Conflicting params `{field_name}` and `{backcompat_key}` found in extras for conn "
                f"{conn_id}. Using value for `{field_name}`.  Please ensure this is the correct "
                f"value and remove the backcompat key `{backcompat_key}`."
            )
        ret = extras[field_name]
    elif backcompat_key in extras:
        ret = extras.get(backcompat_key)
    if ret == "":
        return None
    return ret