dify/api/extensions/ext_storage.py
2024-09-10 09:19:47 +08:00

72 lines
2.5 KiB
Python

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.huawei_storage import HuaweiStorage
from extensions.storage.local_storage import LocalStorage
from extensions.storage.oci_storage import OCIStorage
from extensions.storage.s3_storage import S3Storage
from extensions.storage.tencent_storage import TencentStorage
from extensions.storage.volcengine_storage import VolcengineStorage
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)
elif storage_type == "tencent-cos":
self.storage_runner = TencentStorage(app=app)
elif storage_type == "oci-storage":
self.storage_runner = OCIStorage(app=app)
elif storage_type == "huawei-obs":
self.storage_runner = HuaweiStorage(app=app)
elif storage_type == "volcengine-tos":
self.storage_runner = VolcengineStorage(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)