004d59563c
The jitter-before-first-sleep block was duplicated verbatim in PeriodicPoller.run() and FSPoller._sweep_loop(). Move it to BasePoller._stagger_start() with a named _STAGGER_FRACTION constant. This also gives a testable seam outside the pragma-no-cover event-loop glue methods.
48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
import asyncio
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from typing import TYPE_CHECKING
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from haiku.rag.ingester.pollers.base import BasePoller
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if TYPE_CHECKING:
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from haiku.rag.ingester.pollers.circuit_breaker import CircuitBreaker
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class PeriodicPoller(BasePoller):
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"""Runs `source.discover()` on a fixed interval. Used for HTTP, S3, WebDAV
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— sources that only know about changes when we ask them."""
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def __init__(
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self,
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*,
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source,
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config,
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job_repo,
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sync_repo,
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breaker: "CircuitBreaker | None" = None,
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default_max_attempts: int = 5,
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):
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super().__init__(
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source=source,
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config=config,
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job_repo=job_repo,
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sync_repo=sync_repo,
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breaker=breaker,
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default_max_attempts=default_max_attempts,
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)
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async def run(self) -> None: # pragma: no cover - event-loop glue
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# Initial sweep on startup so newly-configured sources are scanned
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# immediately instead of waiting one full interval. The sweep
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# behaviour itself is exercised via `_sweep_once()` unit tests.
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await self._sweep_once()
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if await self._stagger_start():
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return
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while not self._stop.is_set():
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try:
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await asyncio.wait_for(
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self._stop.wait(), timeout=self.config.poll_interval_s
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)
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return
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except TimeoutError:
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pass
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await self._sweep_once()
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