wehub-resource-sync
38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
import time
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from collections.abc import Callable
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from typing import Generic, TypeVar
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T = TypeVar("T")
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class PeriodicCollector(Generic[T]):
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def __init__(self, callback: Callable[[T], None], *, duration: float) -> None:
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"""
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Create a new periodic collector that accumulates values and calls the callback
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after the specified duration if there are values to report.
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Args:
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duration: Time in seconds between callback invocations
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callback: Function to call with accumulated value when duration expires
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"""
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self._duration = duration
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self._callback = callback
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self._last_flush_time = time.monotonic()
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self._total: T | None = None
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def push(self, value: T) -> None:
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"""Add a value to the accumulator"""
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if self._total is None:
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self._total = value
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else:
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self._total += value # type: ignore
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if time.monotonic() - self._last_flush_time >= self._duration:
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self.flush()
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def flush(self) -> None:
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"""Force callback to be called with current total if non-zero"""
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if self._total is not None:
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self._callback(self._total)
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self._total = None
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self._last_flush_time = time.monotonic()
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