55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
from typing import Iterable, Mapping, Optional, Union
|
|
from sqlalchemy import Column, Integer, ForeignKey
|
|
|
|
from platypush.common.db import is_defined
|
|
from platypush.common.sensors import Numeric
|
|
|
|
from .sensors import RawSensor
|
|
|
|
|
|
if not is_defined('three_axis_sensor'):
|
|
|
|
class ThreeAxisSensor(RawSensor):
|
|
"""
|
|
An entity that measures a time duration.
|
|
"""
|
|
|
|
__tablename__ = 'three_axis_sensor'
|
|
|
|
id = Column(
|
|
Integer, ForeignKey(RawSensor.id, ondelete='CASCADE'), primary_key=True
|
|
)
|
|
|
|
__table_args__ = {'extend_existing': True}
|
|
__mapper_args__ = {
|
|
'polymorphic_identity': __tablename__,
|
|
}
|
|
|
|
@RawSensor.value.setter
|
|
def value(
|
|
self, value: Optional[Union[Iterable[Numeric], Mapping[str, Numeric]]]
|
|
):
|
|
"""
|
|
Validates and normalizes the given value to a list of 3 numeric
|
|
values.
|
|
"""
|
|
if value is None:
|
|
return
|
|
|
|
if isinstance(value, dict):
|
|
assert set(value.keys()) == {
|
|
'x',
|
|
'y',
|
|
'z',
|
|
}, f'Invalid keys for entity of type {self.__class__}: "{value}"'
|
|
|
|
value = [value[k] for k in ['x', 'y', 'z']] # type: ignore
|
|
|
|
assert (
|
|
isinstance(value, (list, tuple))
|
|
and len(value) == 3 # type: ignore
|
|
and all(isinstance(v, (int, float)) for v in value)
|
|
), f'Invalid 3-axis value: {value}'
|
|
|
|
super(ThreeAxisSensor, type(self)).value.fset(self, value) # type: ignore
|