1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
import logging
import threading
from typing import Any, List
from PyViCare.PyViCareAbstractOAuthManager import AbstractViCareOAuthManager
from PyViCare.PyViCareService import (ViCareDeviceAccessor, ViCareService,
readFeature)
from PyViCare.PyViCareUtils import PyViCareInvalidDataError, ViCareTimer
logger = logging.getLogger('ViCare')
logger.addHandler(logging.NullHandler())
class ViCareCachedService(ViCareService):
def __init__(self, oauth_manager: AbstractViCareOAuthManager, accessor: ViCareDeviceAccessor, roles: List[str], cacheDuration: int) -> None:
ViCareService.__init__(self, oauth_manager, accessor, roles)
self.__cacheDuration = cacheDuration
self.__cache = None
self.__cacheTime = None
self.__lock = threading.Lock()
def getProperty(self, property_name: str) -> Any:
data = self.__get_or_update_cache()
entities = data["data"]
return readFeature(entities, property_name)
def setProperty(self, property_name, action, data):
response = super().setProperty(property_name, action, data)
self.clear_cache()
return response
def __get_or_update_cache(self):
with self.__lock:
if self.is_cache_invalid():
# we always sett the cache time before we fetch the data
# to avoid consuming all the api calls if the api is down
# see https://github.com/home-assistant/core/issues/67052
# we simply return the old cache in this case
self.__cacheTime = ViCareTimer().now()
data = self.fetch_all_features()
if "data" not in data:
logger.error("Missing 'data' property when fetching data.")
raise PyViCareInvalidDataError(data)
self.__cache = data
return self.__cache
def is_cache_invalid(self) -> bool:
return self.__cache is None or self.__cacheTime is None or (ViCareTimer().now() - self.__cacheTime).seconds > self.__cacheDuration
def clear_cache(self):
with self.__lock:
self.__cache = None
self.__cacheTime = None
|
