mhenc commented on code in PR #27892: URL: https://github.com/apache/airflow/pull/27892#discussion_r1042342841
########## airflow/api_internal/internal_api_call.py: ########## @@ -0,0 +1,113 @@ +# 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 + +import inspect +import json +from functools import wraps +from typing import Callable, TypeVar + +import requests + +from airflow.configuration import conf +from airflow.exceptions import AirflowConfigException, AirflowException +from airflow.serialization.serialized_objects import BaseSerialization +from airflow.typing_compat import ParamSpec + +PS = ParamSpec("PS") +RT = TypeVar("RT") + + +class InternalApiConfig: + """Stores and caches configuration for Internal API.""" + + _initialized = False + _use_internal_api = False + _internal_api_endpoint = "" + + @staticmethod + def get_use_internal_api(): + if not InternalApiConfig._initialized: + InternalApiConfig._init_values() + return InternalApiConfig._use_internal_api + + @staticmethod + def get_internal_api_endpoint(): + if not InternalApiConfig._initialized: + InternalApiConfig._init_values() + return InternalApiConfig._internal_api_endpoint + + @staticmethod + def _init_values(): + use_internal_api = conf.getboolean("core", "database_access_isolation") + internal_api_endpoint = "" + if use_internal_api: + internal_api_url = conf.get("core", "database_api_url") + internal_api_endpoint = internal_api_url + "/internal/v1/rpcapi" + if not internal_api_endpoint.startswith("http://";): + raise AirflowConfigException("[core]database_api_url must start with http://";) + + InternalApiConfig._initialized = True + InternalApiConfig._use_internal_api = use_internal_api + InternalApiConfig._internal_api_endpoint = internal_api_endpoint + + +def internal_api_call(func: Callable[PS, RT | None]) -> Callable[PS, RT | None]: + """Decorator for methods which may be executed in database isolation mode. + + If [core]database_access_isolation is true then such method are not executed locally, + but instead RPC call is made to Database API (aka Internal API). This makes some components + decouple from direct Airflow database access. + Each decorated method must be present in METHODS list in airflow.api_internal.endpoints.rpc_api_endpoint. Review Comment: Yes, if possible please add it after this PR is merged (or tell me know how to do it as I never worked with these pre-commits). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
