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/
client.py
executable file
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client.py
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# Copyright 2014 Klaudiusz Staniek
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
fiblary.client
~~~~~~~~~~~~~~
Home Center Controller Client Implementation
"""
import logging
import sys
import threading
from fiblary3.client.v4 import devices
from fiblary3.client.v4 import events
from fiblary3.client.v4 import info
from fiblary3.client.v4 import login
from fiblary3.client.v4 import models
from fiblary3.client.v4 import rooms
from fiblary3.client.v4 import scenes
from fiblary3.client.v4 import sections
from fiblary3.client.v4 import users
from fiblary3.client.v4 import variables
from fiblary3.client.v4 import weather
from fiblary3.common.event import EventHook
from fiblary3.common import exceptions
from fiblary3.common import restapi
_logger = logging.getLogger(__name__)
_schema_ignore = ["HC_user", "VOIP_user", "weather", 'iOS_device', '']
class Client(object):
"""Home Center 2 Client Class.
Provides interface to different resources managed by HC2
through the specialized controllers
"""
def __init__(self, endpoint, username=None, password=None):
if '/api/' not in endpoint:
raise IOError("Wrong API string. It should be like: "
"http://<hc2_ip>/api/")
# TODO(klstanie): Add the HC2 reachability checking
self.client = restapi.RESTApi(
base_url=endpoint,
username=username,
password=password,
debug=False
)
self.client.set_header("Fibaro Header","X-Fibaro-Version:2")
self.modified = {}
self.modified_lock = threading.Lock()
# initialize the managers
self.info = info.Controller(
self.client,
self._get_info_model()
)
self.login = login.Controller(
self.client,
self._get_login_model()
)
self.sections = sections.Controller(
self.client,
self._get_section_model()
)
self.rooms = rooms.Controller(
self.client,
self._get_room_model()
)
self.users = users.Controller(
self.client,
self._get_user_model()
)
self.variables = variables.Controller(
self.client,
self._get_variable_model()
)
self.scenes = scenes.Controller(
self.client,
self._get_scene_model()
)
self.devices = devices.Controller(
self.client,
self._get_device_model()
)
self.weather = weather.Controller(
self.client,
self._get_weather_model()
)
self.events = events.Controller(
self.client,
self._get_event_model()
)
self.state_handler = None
def _get_info_model(self):
def model(item):
return models.factory(self.info, item)
return model
def _get_login_model(self):
def model(item):
return models.factory(self.login, item)
return model
def _get_section_model(self):
def model(item):
return models.factory(self.sections, item)
return model
def _get_room_model(self):
def model(item):
return models.factory(self.rooms, item)
return model
def _get_user_model(self):
def model(item):
return models.factory(self.users, item)
return model
def _get_variable_model(self):
def model(item):
return models.factory(self.variables, item)
return model
def _get_weather_model(self):
def model(item):
return models.factory(self.weather, item)
return model
def _get_event_model(self):
def model(item):
return models.factory(self.events, item)
return model
def _get_scene_model(self):
def model(item):
return models.factory(self.scenes, item)
return model
def _get_device_model(self):
def model(item):
return models.factory(self.devices, item)
return model
def __repr__(self):
return "Home Center 2 Client"
def _on_property_change(self, **kwargs):
property_name = kwargs.get('property', None)
if not property_name:
return
try:
self.modified[property_name](**kwargs)
except Exception:
# trick to reduce number of exceptions
with self.modified_lock:
self.modified[property_name] = EventHook(property_name)
_logger.warning("Missing state handler for: {}".format(property_name))
def _on_state_change(self, state):
timestamp = state.get('timestamp', 0)
for change in state.get('changes', []):
device_id = change.pop('id')
for property_name, value in list(change.items()):
data = {
'timestamp': timestamp,
'id': device_id,
'property': property_name,
'value': value,
'client': self
}
self._on_property_change(**data)
# API
def enable_state_handler(self):
self.state_handler = StateHandler(self, self._on_state_change)
def disable_state_handler(self):
self.state_handler.stop()
def add_event_handler(self, property_name, handler):
if property_name not in self.modified:
with self.modified_lock:
self.modified[property_name] = EventHook(property_name)
self.modified[property_name] += handler
def remove_event_handler(self, property_name, handler):
try:
self.modified[property_name] -= handler
except ValueError:
raise exceptions.HandlerNotFound(
message="Handler for property '{}' not found: {}.".format(
property_name,
handler.__name__))
class StateHandler(threading.Thread):
def __init__(self, client, callback):
super(StateHandler, self).__init__(name=self.__class__.__name__)
self.client = client
self.api = client.client
self.callback = callback
self.daemon = True # stop unconditionally on exit
self._stop = threading.Event()
self.start()
def run(self):
"""State Handler main loop"""
_logger.info("Starting the state change handler")
last = "0"
while not self.stopped():
timeout = 60
sleep_time = 1
attempt = 1
success = False
while not success:
if self.stopped():
break
try:
state = self.api.get(
'refreshStates?last={}'.format(last),
timeout=timeout)
_logger.debug(state)
try:
state = state.json()
except Exception:
_logger.critical("JSON ERROR: {}".format(state))
raise
last = state['last']
self.callback(state)
success = True
break
except Exception:
_logger.warn(
"Connection Error. Attempt number: {}".format(
attempt)
)
e = sys.exc_info()
_logger.exception("Exception: {}".format(str(e)))
attempt += 1
if not success:
if attempt == 10:
sleep_time = 30
_logger.warn(
"Fallback to 30-second connection retry timer."
)
_logger.warn(
"Waiting for next attempt {} second(s)".format(
sleep_time)
)
self._stop.wait(sleep_time)
_logger.info("State change handler stopped.")
def stopped(self):
return self._stop.isSet()
def stop(self):
_logger.info("Stopping the state change handler")
self.api.session.close() # not effect on pending request
self._stop.set()