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Python

# Copyright 2023 Declan Teevan
#
# Licensed 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 typing import Type
from auth_service.models.config import Config
from auth_service.models.service import AuthDBRepository
from auth_service.events.user_consumer import UserEventConsumer
class EventConsumersWrapper:
"""A wrapper class for starting the event consumers.
Attributes:
_user_consumer (UserEventConsumer): Wrapped consumer.
"""
def __init__(self, user_consumer: UserEventConsumer) -> None:
"""Add the consumers to the wrapper
Args:
user_consumer (UserEventConsumer): Initialised user consumer.
"""
self._user_consumer = user_consumer
async def start(self) -> None:
"""Begin consuming events on all the event consumers."""
await self._user_consumer.start()
def create_consumers(config: Config, db_repo: Type[AuthDBRepository]) -> EventConsumersWrapper:
"""Initialse the event consumers and return them in a wrapper.
Args:
config (Config): The app configuration instance.
db_repo (Type[AuthDBRepository]): The database repo to pass to the consumers.
Returns:
EventConsumerWrapper
"""
user_consumer = UserEventConsumer(config, db_repo)
return EventConsumersWrapper(user_consumer=user_consumer)