Source code for airflow.providers.google.cloud.links.spanner

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"""This module contains Google Spanner links."""
from __future__ import annotations

from typing import TYPE_CHECKING

from airflow.models import BaseOperator
from airflow.providers.google.cloud.links.base import BaseGoogleLink

if TYPE_CHECKING:
    from airflow.utils.context import Context

[docs]SPANNER_BASE_LINK = "/spanner/instances"
[docs]SPANNER_INSTANCE_LINK = SPANNER_BASE_LINK + "/{instance_id}/details/databases?project={project_id}"
[docs]SPANNER_DATABASE_LINK = (
    SPANNER_BASE_LINK + "/{instance_id}/databases/{database_id}/details/tables?project={project_id}"
)


[docs]class SpannerInstanceLink(BaseGoogleLink):
    """Helper class for constructing Spanner Instance Link"""

[docs]    name = "Spanner Instance"
[docs]    key = "spanner_instance"
[docs]    format_str = SPANNER_INSTANCE_LINK

    @staticmethod
[docs]    def persist(
        context: Context,
        task_instance: BaseOperator,
        instance_id: str,
        project_id: str | None,
    ):
        task_instance.xcom_push(
            context,
            key=SpannerInstanceLink.key,
            value={"instance_id": instance_id, "project_id": project_id},
        )


[docs]class SpannerDatabaseLink(BaseGoogleLink):
    """Helper class for constructing Spanner Database Link"""

[docs]    name = "Spanner Database"
[docs]    key = "spanner_database"
[docs]    format_str = SPANNER_DATABASE_LINK

    @staticmethod
[docs]    def persist(
        context: Context,
        task_instance: BaseOperator,
        instance_id: str,
        database_id: str,
        project_id: str | None,
    ):
        task_instance.xcom_push(
            context,
            key=SpannerDatabaseLink.key,
            value={"instance_id": instance_id, "database_id": database_id, "project_id": project_id},
        )