def encode(self):
stream = ble_data_types.BleDataStream()
flags = _GlucoseContextFlags()
flags.carb_present = self.carbs is not None
flags.meal_present = self.meal_type is not None
flags.tester_health_present = self.tester is not None
flags.exercise_present = self.exercise is not None
flags.medication_present = self.medication is not None
if flags.medication_present:
flags.medication_units = self.medication.units
flags.hba1c_present = self.hba1c_percent is not None
flags.extended_flags_present = self.extra_flags is not None
stream.encode(flags)
stream.encode(ble_data_types.Uint16, self.sequence_number)
stream.encode_if(flags.extended_flags_present, ble_data_types.Uint8,
self.extra_flags)
stream.encode_if(flags.carb_present, self.carbs)
stream.encode_if(flags.meal_present, ble_data_types.Uint8,
self.meal_type)
stream.encode_if(flags.tester_health_present,
ble_data_types.DoubleNibble,
[self.tester, self.health_status])
stream.encode_if(flags.exercise_present, self.exercise)
stream.encode_if(flags.medication_present, self.medication)
stream.encode_if(flags.hba1c_present, ble_data_types.SFloat,
self.hba1c_percent)
return stream
def encode(self):
stream = ble_data_types.BleDataStream()
# Clamp duration to max 16-bit, max value means overrun
duration = max(self.duration_seconds, self.EXERCISE_DURATION_OVERRUN)
stream.encode(ble_data_types.Uint16, duration)
stream.encode(ble_data_types.Uint8, self.intensity_percent)
return stream
def encode(self):
stream = ble_data_types.BleDataStream()
stream.encode(ble_data_types.Uint8, self.opcode)
stream.encode(ble_data_types.Uint8, self.operator)
if self.filter_type is not None:
stream.encode(ble_data_types.Uint8, self.filter_type)
for f in self.filter_params:
stream.encode(ble_data_types.Uint16, f)
return stream
def decode(self, data):
try:
stream = ble_data_types.BleDataStream(data)
return self.ble_type.decode(stream)
except Exception as e:
if self.logger:
self.logger.error(
"Failed to decode into {} type, stream: [{}]".format(
self.ble_type.__name__, binascii.hexlify(data)))
self.logger.exception(e)
return None
def encode(self):
stream = ble_data_types.BleDataStream()
if self.record_count is None:
stream.encode_multiple(
[ble_data_types.Uint8, RacpOpcode.response_code],
[ble_data_types.Uint8, RacpOperator.null],
[ble_data_types.Uint8, self.request_code],
[ble_data_types.Uint8, self.response_code])
else:
stream.encode_multiple(
[ble_data_types.Uint8, RacpOpcode.number_of_records_response],
[ble_data_types.Uint8, RacpOperator.null],
[ble_data_types.Uint16, self.record_count])
return stream
def _read_complete(self, characteristic, event_args):
"""
:param characteristic:
:type event_args: blatann.event_args.ReadCompleteEventArgs
"""
decoded_value = None
if event_args.status == GattStatusCode.success:
try:
stream = ble_data_types.BleDataStream(event_args.value)
decoded_value = self.data_class.decode(stream)
except Exception as e: # TODO not so generic
logger.error("Service {}, Characteristic {} failed to decode value on read. "
"Stream: [{}]".format(self.service.uuid, self.uuid, binascii.hexlify(event_args.value)))
logger.exception(e)
decoded_event_args = DecodedReadCompleteEventArgs.from_read_complete_event_args(event_args, decoded_value)
self._on_read_complete_event.notify(characteristic, decoded_event_args)
def encode(self):
stream = ble_data_types.BleDataStream()
flags = _MeasurementFlags()
flags.time_offset_present = self.time_offset_minutes is not None
flags.sample_present = self.sample is not None
if flags.sample_present:
flags.concentration_units = int(self.sample.units)
flags.sensor_status = self.sensor_status is not None
flags.has_context = self.context is not None
stream.encode(flags)
stream.encode(ble_data_types.Uint16, self.sequence_number)
stream.encode(ble_data_types.DateTime(self.measurement_time))
stream.encode_if(flags.time_offset_present, ble_data_types.Int16,
self.time_offset_minutes)
stream.encode_if(flags.sample_present, self.sample)
stream.encode_if(flags.sensor_status, self.sensor_status)
return stream
def encode(self):
stream = ble_data_types.BleDataStream()
stream.encode(ble_data_types.Uint8, self.type)
stream.encode(ble_data_types.SFloat, self.value)
return stream
def encode(self):
stream = ble_data_types.BleDataStream()
stream.encode(ble_data_types.Uint8, self.carb_type)
stream.encode(ble_data_types.SFloat, self.carbs_grams)
return stream
def encode(self):
stream = ble_data_types.BleDataStream()
stream.encode(ble_data_types.SFloat, self.value)
stream.encode(ble_data_types.DoubleNibble,
[self.type, self.sample_location])
return stream