def _shadow_update_accepted(self,
response: iotshadow.UpdateShadowResponse):
state = response.state
if state:
desired_state = state.desired
if desired_state:
door_status = desired_state.get(
GarageDoorStatus.DOOR_STATUS_PROP)
if door_status == GarageDoorStatus.SIGNALED:
current_status = self._sensor.read()
new_desired_state = (GarageDoorStatus.CLOSED
if current_status == OPEN else
GarageDoorStatus.OPENED)
current_state = (GarageDoorStatus.CLOSED if current_status
== CLOSE else GarageDoorStatus.OPENED)
self._correlation_token = desired_state.get(
GarageDoorStatus.CORRELATION_TOKEN_PROP)
reported_state_obj = GarageDoorStatus(
self._endpoint_id, current_state,
self._correlation_token)
desired_state_obj = GarageDoorStatus(
self._endpoint_id, new_desired_state,
self._correlation_token)
request = iotshadow.UpdateShadowRequest(
thing_name=self._thing_name,
state=iotshadow.ShadowState(
reported=reported_state_obj.json(),
desired=desired_state_obj.json(),
),
)
future = self._device_shadow.publish_update_shadow(
request, qos=mqtt.QoS.AT_LEAST_ONCE)
future.add_done_callback(self._on_publish_update_shadow)
self._garage_door_relay.signal()
def change_shadow_values(values):
with locked_data.lock:
newValues = {}
for key in values:
if locked_data.shadow_properties[key] == values[key]:
print("Local value is already '{}'.".format(values[key]))
else:
print("Changed local shadow value to '{}'.".format(
values[key]))
newValues[key] = values[key]
locked_data.shadow_properties[key] = values[key]
if not newValues:
return
print("Updating reported shadow value to '{}'...".format(values))
# use a unique token so we can correlate this "request" message to
# any "response" messages received on the /accepted and /rejected topics
token = str(uuid4())
request = iotshadow.UpdateShadowRequest(
thing_name=thing_name,
state=iotshadow.ShadowState(reported=newValues, desired=newValues),
client_token=token,
)
future = shadow_client.publish_update_shadow(request,
mqtt.QoS.AT_LEAST_ONCE)
locked_data.request_tokens.add(token)
future.add_done_callback(on_publish_update_shadow)
async def change_shadow_value(thing_name, values):
print("Updating reported shadow value to '{}'...".format(values))
request = iotshadow.UpdateShadowRequest(
thing_name=thing_name, state=iotshadow.ShadowState(reported=values))
shadow_client = iotshadow.IotShadowClient(mqtt_connection)
await asyncio.wrap_future(
shadow_client.publish_update_shadow(request, mqtt.QoS.AT_LEAST_ONCE))
logger.info("Update request published.")
def change_shadow_value(value):
"""
Update shadow reported state
Parameters
----------
value: int
"""
logger.info("Updating reported shadow to...")
new_state = iotshadow.ShadowState(reported={SHADOW_WAIT_TIME_KEY: value})
request = iotshadow.UpdateShadowRequest(thing_name=device_name,
state=new_state)
future = shadow_client.publish_update_shadow(request,
mqtt.QoS.AT_LEAST_ONCE)
future.add_done_callback(on_publish_update_shadow)
def change_shadow_value(value):
with locked_data.lock:
if locked_data.shadow_value == value:
print("Local value is already '{}'.".format(value))
print("Enter desired value: ") # remind user they can input new values
return
print("Changed local shadow value to '{}'.".format(value))
locked_data.shadow_value = value
print("Updating reported shadow value to '{}'...".format(value))
request = iotshadow.UpdateShadowRequest(
thing_name=thing_name,
state=iotshadow.ShadowState(
reported={ shadow_property: value },
desired={ shadow_property: value },
)
)
future = shadow_client.publish_update_shadow(request, mqtt.QoS.AT_LEAST_ONCE)
future.add_done_callback(on_publish_update_shadow)
def publishState(self):
#Update thing state corresponding to the gateway
sa = []
for s in self.service_list:
sd = {'SERVICE_TYPE': s.type, 'SERVICE_NAME': s.name}
sa.append(sd)
msg = {'services': sa, 'service_count': len(sa)}
request = iotshadow.UpdateShadowRequest(
thing_name=self.thing_name,
state=iotshadow.ShadowState(reported=msg))
future = self.shadow_client.publish_update_shadow(
request, mqtt.QoS.AT_LEAST_ONCE)
# Ensure that publish succeeds
try:
future.result()
print("Update request published.")
except:
print("Failed to publish update request.")
def _report_status(self, status):
print("Gotten status: {}".format(status))
reported_status = GarageDoorStatus(
endpoint_id=self._endpoint_id,
door_status=status,
correlation_token=self._correlation_token,
)
desired_status = GarageDoorStatus(
endpoint_id=self._endpoint_id,
correlation_token=self._correlation_token)
update_request = iotshadow.UpdateShadowRequest(
thing_name=self._thing_name,
state=iotshadow.ShadowState(
reported=reported_status.json(),
desired=desired_status.json(),
),
)
future = self._device_shadow.publish_update_shadow(
update_request, qos=mqtt.QoS.AT_LEAST_ONCE)
future.add_done_callback(self._on_publish_update_shadow)
self._correlation_token = None
except Exception as e:
exit(e)
publish_count = 1
# Take initial reading
psutil.cpu_percent(percpu=False)
locked_data.thing_name = args.thing_name
locked_data.before_ts = time.time()
locked_data.ioBefore = psutil.net_io_counters()
locked_data.diskBefore = psutil.disk_io_counters()
psutil.disk_io_counters(perdisk=False, nowrap=True)
while True:
time.sleep(AWS_PUBLISH_DELAY_SECS)
print("[aws] Updating shadow values [%d]" % (publish_count))
data = locked_data.toJSON()
request = iotshadow.UpdateShadowRequest(thing_name=args.thing_name,
state=iotshadow.ShadowState(
reported=data,
desired=data,
))
future = shadow_client.publish_update_shadow(request,
mqtt.QoS.AT_LEAST_ONCE)
future.add_done_callback(on_publish_update_shadow)
publish_count += 1
# vim: set tabstop=4 shiftwidth=4 expandtab: