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| from collections.abc import Generator | |
| from typing import Union | |
| from flask import Flask | |
| from extensions.storage.aliyun_storage import AliyunStorage | |
| from extensions.storage.azure_storage import AzureStorage | |
| from extensions.storage.google_storage import GoogleStorage | |
| from extensions.storage.local_storage import LocalStorage | |
| from extensions.storage.s3_storage import S3Storage | |
| class Storage: | |
| def __init__(self): | |
| self.storage_runner = None | |
| def init_app(self, app: Flask): | |
| storage_type = app.config.get('STORAGE_TYPE') | |
| if storage_type == 's3': | |
| self.storage_runner = S3Storage( | |
| app=app | |
| ) | |
| elif storage_type == 'azure-blob': | |
| self.storage_runner = AzureStorage( | |
| app=app | |
| ) | |
| elif storage_type == 'aliyun-oss': | |
| self.storage_runner = AliyunStorage( | |
| app=app | |
| ) | |
| elif storage_type == 'google-storage': | |
| self.storage_runner = GoogleStorage( | |
| app=app | |
| ) | |
| else: | |
| self.storage_runner = LocalStorage(app=app) | |
| def save(self, filename, data): | |
| self.storage_runner.save(filename, data) | |
| def load(self, filename: str, stream: bool = False) -> Union[bytes, Generator]: | |
| if stream: | |
| return self.load_stream(filename) | |
| else: | |
| return self.load_once(filename) | |
| def load_once(self, filename: str) -> bytes: | |
| return self.storage_runner.load_once(filename) | |
| def load_stream(self, filename: str) -> Generator: | |
| return self.storage_runner.load_stream(filename) | |
| def download(self, filename, target_filepath): | |
| self.storage_runner.download(filename, target_filepath) | |
| def exists(self, filename): | |
| return self.storage_runner.exists(filename) | |
| def delete(self, filename): | |
| return self.storage_runner.delete(filename) | |
| storage = Storage() | |
| def init_app(app: Flask): | |
| storage.init_app(app) | |