airflow pool_schema 源码
airflow pool_schema 代码
文件路径：/airflow/api_connexion/schemas/pool_schema.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 typing import NamedTuple
from marshmallow import Schema, fields
from marshmallow_sqlalchemy import SQLAlchemySchema, auto_field
from airflow.models.pool import Pool
class PoolSchema(SQLAlchemySchema):
"""Pool schema"""
class Meta:
"""Meta"""
model = Pool
name = auto_field("pool")
slots = auto_field()
occupied_slots = fields.Method("get_occupied_slots", dump_only=True)
running_slots = fields.Method("get_running_slots", dump_only=True)
queued_slots = fields.Method("get_queued_slots", dump_only=True)
scheduled_slots = fields.Method("get_scheduled_slots", dump_only=True)
open_slots = fields.Method("get_open_slots", dump_only=True)
description = auto_field()
@staticmethod
def get_occupied_slots(obj: Pool) -> int:
"""Returns the occupied slots of the pool."""
return obj.occupied_slots()
@staticmethod
def get_running_slots(obj: Pool) -> int:
"""Returns the running slots of the pool."""
return obj.running_slots()
@staticmethod
def get_queued_slots(obj: Pool) -> int:
"""Returns the queued slots of the pool."""
return obj.queued_slots()
@staticmethod
def get_scheduled_slots(obj: Pool) -> int:
"""Returns the scheduled slots of the pool."""
return obj.scheduled_slots()
@staticmethod
def get_open_slots(obj: Pool) -> float:
"""Returns the open slots of the pool."""
return obj.open_slots()
class PoolCollection(NamedTuple):
"""List of Pools with metadata"""
pools: list[Pool]
total_entries: int
class PoolCollectionSchema(Schema):
"""Pool Collection schema"""
pools = fields.List(fields.Nested(PoolSchema))
total_entries = fields.Int()
pool_collection_schema = PoolCollectionSchema()
pool_schema = PoolSchema()
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