airflow task_endpoint 源码
airflow task_endpoint 代码
文件路径：/airflow/api_connexion/endpoints/task_endpoint.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.
from __future__ import annotations
from operator import attrgetter
from airflow import DAG
from airflow.api_connexion import security
from airflow.api_connexion.exceptions import BadRequest, NotFound
from airflow.api_connexion.schemas.task_schema import TaskCollection, task_collection_schema, task_schema
from airflow.api_connexion.types import APIResponse
from airflow.exceptions import TaskNotFound
from airflow.security import permissions
from airflow.utils.airflow_flask_app import get_airflow_app
@security.requires_access(
[
(permissions.ACTION_CAN_READ, permissions.RESOURCE_DAG),
(permissions.ACTION_CAN_READ, permissions.RESOURCE_TASK_INSTANCE),
],
)
def get_task(*, dag_id: str, task_id: str) -> APIResponse:
"""Get simplified representation of a task."""
dag: DAG = get_airflow_app().dag_bag.get_dag(dag_id)
if not dag:
raise NotFound("DAG not found")
try:
task = dag.get_task(task_id=task_id)
except TaskNotFound:
raise NotFound("Task not found")
return task_schema.dump(task)
@security.requires_access(
[
(permissions.ACTION_CAN_READ, permissions.RESOURCE_DAG),
(permissions.ACTION_CAN_READ, permissions.RESOURCE_TASK_INSTANCE),
],
)
def get_tasks(*, dag_id: str, order_by: str = "task_id") -> APIResponse:
"""Get tasks for DAG"""
dag: DAG = get_airflow_app().dag_bag.get_dag(dag_id)
if not dag:
raise NotFound("DAG not found")
tasks = dag.tasks
try:
tasks = sorted(tasks, key=attrgetter(order_by.lstrip('-')), reverse=(order_by[0:1] == '-'))
except AttributeError as err:
raise BadRequest(detail=str(err))
task_collection = TaskCollection(tasks=tasks, total_entries=len(tasks))
return task_collection_schema.dump(task_collection)
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