26 lines
660 B
Python
26 lines
660 B
Python
from __future__ import annotations
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from collections import OrderedDict
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class EventDeduplicator:
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def __init__(self, max_size: int = 10000):
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self._seen: OrderedDict[str, None] = OrderedDict()
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self._max_size = max_size
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def is_duplicate(self, event_id: str) -> bool:
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if event_id in self._seen:
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self._seen.move_to_end(event_id)
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return True
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self._seen[event_id] = None
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if len(self._seen) > self._max_size:
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self._seen.popitem(last=False)
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return False
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def clear(self) -> None:
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self._seen.clear()
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def __len__(self) -> int:
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return len(self._seen)
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