Source code for airflow.providers.common.compat.lineage.entities

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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
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"""Defines base entities used for providing lineage information."""

from __future__ import annotations

from typing import Any, ClassVar

import attr


@attr.s(auto_attribs=True)

[docs]
class File:
    """File entity. Refers to a file."""


[docs]
    template_fields: ClassVar = ("url",)



[docs]
    url: str = attr.ib()


[docs]
    type_hint: str | None = None




@attr.s(auto_attribs=True, kw_only=True)

[docs]
class User:
    """User entity. Identifies a user."""


[docs]
    email: str = attr.ib()


[docs]
    first_name: str | None = None


[docs]
    last_name: str | None = None



[docs]
    template_fields: ClassVar = ("email", "first_name", "last_name")




@attr.s(auto_attribs=True, kw_only=True)

[docs]
class Tag:
    """Tag or classification entity."""


[docs]
    tag_name: str = attr.ib()



[docs]
    template_fields: ClassVar = ("tag_name",)




@attr.s(auto_attribs=True, kw_only=True)

[docs]
class Column:
    """Column of a Table."""


[docs]
    name: str = attr.ib()


[docs]
    description: str | None = None


[docs]
    data_type: str = attr.ib()


[docs]
    tags: list[Tag] = []



[docs]
    template_fields: ClassVar = ("name", "description", "data_type", "tags")




# this is a temporary hack to satisfy mypy. Once
# https://github.com/python/mypy/issues/6136 is resolved, use
# `attr.converters.default_if_none(default=False)`



[docs]
def default_if_none(arg: bool | None) -> bool:
    """Get default value when None."""
    return arg or False



@attr.s(auto_attribs=True, kw_only=True)

[docs]
class Table:
    """Table entity."""


[docs]
    database: str = attr.ib()


[docs]
    cluster: str = attr.ib()


[docs]
    name: str = attr.ib()


[docs]
    tags: list[Tag] = []


[docs]
    description: str | None = None


[docs]
    columns: list[Column] = []


[docs]
    owners: list[User] = []


[docs]
    extra: dict[str, Any] = {}


[docs]
    type_hint: str | None = None



[docs]
    template_fields: ClassVar = (
        "database",
        "cluster",
        "name",
        "tags",
        "description",
        "columns",
        "owners",
        "extra",
    )