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"""
Module for managing a raw value via KNX.
It provides functionality for
* reading the current value from KNX bus or providing a value to the bus.
* send local state changes to KNX bus.
* watching for state updates from KNX bus.
"""
from __future__ import annotations
from collections.abc import Iterator
from typing import TYPE_CHECKING
from xknx.remote_value import GroupAddressesType, RemoteValueRaw
from .device import Device, DeviceCallbackType
if TYPE_CHECKING:
from xknx.telegram import Telegram
from xknx.xknx import XKNX
class RawValue(Device):
"""Class for managing a raw value."""
def __init__(
self,
xknx: XKNX,
name: str,
payload_length: int,
group_address: GroupAddressesType = None,
group_address_state: GroupAddressesType = None,
respond_to_read: bool = False,
sync_state: bool | int | float | str = True,
always_callback: bool = False,
device_updated_cb: DeviceCallbackType[RawValue] | None = None,
) -> None:
"""Initialize Sensor class."""
super().__init__(xknx, name, device_updated_cb)
self.always_callback = always_callback
self.respond_to_read = respond_to_read
self.remote_value = RemoteValueRaw(
xknx,
payload_length=payload_length,
group_address=group_address,
group_address_state=group_address_state,
sync_state=sync_state,
device_name=self.name,
after_update_cb=self.after_update,
)
def _iter_remote_values(self) -> Iterator[RemoteValueRaw]:
"""Iterate the devices RemoteValue classes."""
yield self.remote_value
@property
def last_telegram(self) -> Telegram | None:
"""Return the last telegram received from the RemoteValue."""
return self.remote_value.telegram
def process_group_write(self, telegram: Telegram) -> None:
"""Process incoming and outgoing GROUP WRITE telegram."""
self.remote_value.process(telegram, always_callback=self.always_callback)
def process_group_read(self, telegram: Telegram) -> None:
"""Process incoming GroupValueResponse telegrams."""
if (
self.respond_to_read
and telegram.destination_address == self.remote_value.group_address
):
self.remote_value.respond()
async def set(self, value: int) -> None:
"""Set new value."""
self.remote_value.set(value)
def resolve_state(self) -> int | None:
"""Return the current state of the sensor as an unsigned integer."""
return self.remote_value.value
def __str__(self) -> str:
"""Return object as readable string."""
return (
f'<RawValue name="{self.name}" '
f"addresses={self.remote_value.group_addr_str()} "
f"value={self.resolve_state().__repr__()}/>"
)
|
