airflow xcom_schema 源码
airflow xcom_schema 代码
文件路径：/airflow/api_connexion/schemas/xcom_schema.py
# Licensed to the Apache Software Foundation (ASF) under one
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# 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 typing import NamedTuple
from marshmallow import Schema, fields
from marshmallow_sqlalchemy import SQLAlchemySchema, auto_field
from airflow.models import XCom
class XComCollectionItemSchema(SQLAlchemySchema):
"""Schema for a xcom item"""
class Meta:
"""Meta"""
model = XCom
key = auto_field()
timestamp = auto_field()
execution_date = auto_field()
task_id = auto_field()
dag_id = auto_field()
class XComSchema(XComCollectionItemSchema):
"""XCom schema"""
value = auto_field()
class XComCollection(NamedTuple):
"""List of XComs with meta"""
xcom_entries: list[XCom]
total_entries: int
class XComCollectionSchema(Schema):
"""XCom Collection Schema"""
xcom_entries = fields.List(fields.Nested(XComCollectionItemSchema))
total_entries = fields.Int()
xcom_schema = XComSchema()
xcom_collection_item_schema = XComCollectionItemSchema()
xcom_collection_schema = XComCollectionSchema()
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