Spaces:
Sleeping
Sleeping
File size: 2,069 Bytes
f171e60 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | from abc import ABC, abstractmethod
from typing import Optional, Any
import hashlib
import json
class BaseCache(ABC):
"""
Abstract base class cho cache implementations
"""
@abstractmethod
async def get(self, key: str) -> Optional[Any]:
"""
Get value từ cache
Args:
key: Cache key
Returns:
Cached value hoặc None
"""
pass
@abstractmethod
async def set(self, key: str, value: Any, ttl: Optional[int] = None) -> bool:
"""
Set value vào cache
Args:
key: Cache key
value: Value to cache
ttl: Time to live in seconds
Returns:
True nếu success
"""
pass
@abstractmethod
async def delete(self, key: str) -> bool:
"""
Delete key từ cache
Args:
key: Cache key
Returns:
True nếu success
"""
pass
@abstractmethod
async def clear(self) -> bool:
"""
Clear toàn bộ cache
Returns:
True nếu success
"""
pass
@abstractmethod
async def exists(self, key: str) -> bool:
"""
Check xem key có tồn tại không
Args:
key: Cache key
Returns:
True nếu key exists
"""
pass
def generate_key(self, prefix: str, **kwargs) -> str:
"""
Generate cache key từ parameters
Args:
prefix: Key prefix
**kwargs: Parameters to include in key
Returns:
Generated cache key
"""
# Sort kwargs để đảm bảo consistent key
sorted_params = json.dumps(kwargs, sort_keys=True)
# Hash parameters
param_hash = hashlib.md5(sorted_params.encode()).hexdigest()
return f"{prefix}:{param_hash}" |