airflow pubsub 源码
airflow pubsub 代码
文件路径：/airflow/providers/google/cloud/links/pubsub.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 Pub/Sub 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
PUBSUB_BASE_LINK = "/cloudpubsub"
PUBSUB_TOPIC_LINK = PUBSUB_BASE_LINK + "/topic/detail/{topic_id}?project={project_id}"
PUBSUB_SUBSCRIPTION_LINK = PUBSUB_BASE_LINK + "/subscription/detail/{subscription_id}?project={project_id}"
class PubSubTopicLink(BaseGoogleLink):
"""Helper class for constructing Pub/Sub Topic Link"""
name = "Pub/Sub Topic"
key = "pubsub_topic"
format_str = PUBSUB_TOPIC_LINK
@staticmethod
def persist(
context: Context,
task_instance: BaseOperator,
topic_id: str,
project_id: str | None,
):
task_instance.xcom_push(
context,
key=PubSubTopicLink.key,
value={"topic_id": topic_id, "project_id": project_id},
)
class PubSubSubscriptionLink(BaseGoogleLink):
"""Helper class for constructing Pub/Sub Subscription Link"""
name = "Pub/Sub Subscription"
key = "pubsub_subscription"
format_str = PUBSUB_SUBSCRIPTION_LINK
@staticmethod
def persist(
context: Context,
task_instance: BaseOperator,
subscription_id: str | None,
project_id: str | None,
):
task_instance.xcom_push(
context,
key=PubSubSubscriptionLink.key,
value={"subscription_id": subscription_id, "project_id": project_id},
)
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