Created
June 27, 2021 08:37
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A example for a simple cache system.
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| class CacheError(Exception): | |
| def __init__(self, message : str): | |
| super().__init__(message) | |
| class CacheOutput: | |
| def __init__(self, cache_system): | |
| self.cache = cache_system | |
| def replace(self, result_name, result_output): | |
| self.cache._properties[result_name] = result_output | |
| return self | |
| def insert(self, result_name, result_output): | |
| self.cache._properties[result_name] = result_output | |
| return self | |
| def delete(self, result_name): | |
| try: | |
| del self.cache._properties[result_name] | |
| except Exception: | |
| raise CacheError(f"{result_name} is not in the cach.") | |
| else: | |
| return self | |
| def get(self, result_name): | |
| try: | |
| result = self.cache._properties[result_name] | |
| except Exception: | |
| raise CacheError(f"{result_name} is not in the cache.") | |
| else: | |
| return result | |
| class Cache: | |
| def __init__(self): | |
| self._properties = {} | |
| self.properties = CacheOutput(self) |
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