core/homeassistant/components/vallox/coordinator.py

43 lines
1.2 KiB
Python

"""Coordinator for Vallox ventilation units."""
from __future__ import annotations
import logging
from vallox_websocket_api import MetricData, Vallox, ValloxApiException
from homeassistant.core import HomeAssistant
from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
from .const import STATE_SCAN_INTERVAL
_LOGGER = logging.getLogger(__name__)
class ValloxDataUpdateCoordinator(DataUpdateCoordinator[MetricData]):
"""The DataUpdateCoordinator for Vallox."""
def __init__(
self,
hass: HomeAssistant,
name: str,
client: Vallox,
) -> None:
"""Initialize Vallox data coordinator."""
super().__init__(
hass,
_LOGGER,
name=f"{name} DataUpdateCoordinator",
update_interval=STATE_SCAN_INTERVAL,
)
self.client = client
async def _async_update_data(self) -> MetricData:
"""Fetch state update."""
_LOGGER.debug("Updating Vallox state cache")
try:
return await self.client.fetch_metric_data()
except ValloxApiException as err:
raise UpdateFailed("Error during state cache update") from err