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248fa38c34
- Updated storage wrappers to utilize a new base class, StorageWrapper, for better delegation of methods. - Introduced SilentStorage to handle read operations gracefully by returning empty values instead of raising exceptions. - Enhanced CachedPresignStorage to support batch caching of download URLs, improving performance. - Refactored FilePresignStorage to support both presigned URLs and signed proxy URLs for downloads. - Updated AppAssetService to utilize the new storage structure, ensuring consistent asset management.
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
"""Base class for storage wrappers that delegate to an inner storage."""
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from collections.abc import Generator
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from extensions.storage.base_storage import BaseStorage
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class StorageWrapper(BaseStorage):
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"""Base class for storage wrappers using the decorator pattern.
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Forwards all BaseStorage methods to the wrapped storage by default.
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Subclasses can override specific methods to customize behavior.
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Example:
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class MyCustomStorage(StorageWrapper):
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def save(self, filename: str, data: bytes):
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# Custom logic before save
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super().save(filename, data)
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# Custom logic after save
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"""
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def __init__(self, storage: BaseStorage):
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super().__init__()
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self._storage = storage
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def save(self, filename: str, data: bytes):
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self._storage.save(filename, data)
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def load_once(self, filename: str) -> bytes:
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return self._storage.load_once(filename)
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def load_stream(self, filename: str) -> Generator:
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return self._storage.load_stream(filename)
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def download(self, filename: str, target_filepath: str):
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self._storage.download(filename, target_filepath)
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def exists(self, filename: str) -> bool:
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return self._storage.exists(filename)
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def delete(self, filename: str):
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self._storage.delete(filename)
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def scan(self, path: str, files: bool = True, directories: bool = False) -> list[str]:
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return self._storage.scan(path, files=files, directories=directories)
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def get_download_url(self, filename: str, expires_in: int = 3600) -> str:
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return self._storage.get_download_url(filename, expires_in)
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def get_download_urls(self, filenames: list[str], expires_in: int = 3600) -> list[str]:
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return self._storage.get_download_urls(filenames, expires_in)
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def get_upload_url(self, filename: str, expires_in: int = 3600) -> str:
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return self._storage.get_upload_url(filename, expires_in)
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