airflow spanner 源码
airflow spanner 代码
文件路径：/airflow/providers/google/cloud/links/spanner.py
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# 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
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
"""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
SPANNER_BASE_LINK = "/spanner/instances"
SPANNER_INSTANCE_LINK = SPANNER_BASE_LINK + "/{instance_id}/details/databases?project={project_id}"
SPANNER_DATABASE_LINK = (
SPANNER_BASE_LINK + "/{instance_id}/databases/{database_id}/details/tables?project={project_id}"
)
class SpannerInstanceLink(BaseGoogleLink):
"""Helper class for constructing Spanner Instance Link"""
name = "Spanner Instance"
key = "spanner_instance"
format_str = SPANNER_INSTANCE_LINK
@staticmethod
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},
)
class SpannerDatabaseLink(BaseGoogleLink):
"""Helper class for constructing Spanner Database Link"""
name = "Spanner Database"
key = "spanner_database"
format_str = SPANNER_DATABASE_LINK
@staticmethod
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},
)
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