def get_esns(flight):
try:
with hdf_file(flight.segment.file, read_only=True) as hdf:
e1esn = most_common_value(hdf['Eng (1) ESN'].array)
e2esn = most_common_value(hdf['Eng (2) ESN'].array)
return e1esn, e2esn
except:
import traceback
traceback.print_exc()
return '', ''
def derive(self, num=P('Flight Number')):
# Q: Should we validate the flight number?
if num.array.dtype.type is np.string_:
value = most_common_value(num.array, threshold=0.45)
if value is not None:
self.set_flight_attr(value)
return
# Values of 0 are invalid flight numbers
array = np.ma.masked_less_equal(num.array, 0)
# Ignore masked values
compressed_array = array.compressed()
_, minvalue = min_value(compressed_array)
if minvalue < 0:
self.warning(
"'%s' only supports unsigned (positive) values > 0, "
"but none were found. Cannot determine flight number",
self.name)
self.set_flight_attr(None)
return
# note reverse of value, index from max_value due to bincount usage.
value, count = max_value(
np.bincount(compressed_array.astype(np.integer)))
if count > len(compressed_array) * 0.45:
# this value accounts for at least 45% of the values in the array
self.set_flight_attr(str(int(value)))
else:
self.warning(
"Only %d out of %d flight numbers were the same."
" Flight Number attribute will be set as None.", count or 0,
len(num.array))
self.set_flight_attr(None)
return
def derive(self,
dest=P('Destination'),
afr_dest=A('AFR Destination Airport')):
'''
Requires an ASCII destination parameter recording either the airport's
ICAO or IATA code.
'''
if not dest or dest.array.dtype.type is not np.string_:
if afr_dest:
self.set_flight_attr(afr_dest.value)
return
value = most_common_value(dest.array, threshold=0.45)
if value is None or not value.isalpha():
return
handler = api.get_handler(settings.API_HANDLER)
try:
airport = handler.get_airport(value)
except api.NotFoundError:
self.warning('No destination airport found for %s.', value)
return
self.debug('Detected destination airport: %s', airport)
self.set_flight_attr(airport)
def _determine_pilot(self, pilot_flying, pitch_capt, pitch_fo, roll_capt,
roll_fo, cc_capt, cc_fo, phase, ap1, ap2):
if pilot_flying:
# this is the most reliable measurement, use this and no other
pf = pilot_flying.array[phase.slice]
pf[pf == '-'] = np.ma.masked
return most_common_value(pf)
#FIXME: Skip over the Pitch and Control Column parts!
# 1. Check for change in pitch and roll controls during the phase:
if all((pitch_capt, pitch_fo, roll_capt, roll_fo, phase)):
pilot = self._controls_in_use(pitch_capt.array, pitch_fo.array,
roll_capt.array, roll_fo.array,
phase)
if pilot:
return pilot
# 1. Check for changes in control column during the phase:
if all((cc_capt, cc_fo, phase)):
pilot = self._control_column_in_use(cc_capt.array, cc_fo.array,
phase)
if pilot:
return pilot
# 2. Check which autopilot is engaged:
if all((ap1, ap2)):
pilot = self._autopilot_engaged(ap1, ap2)
if pilot:
return pilot
return None
def derive(self, num=P('Flight Number')):
# Q: Should we validate the flight number?
if num.array.dtype.type is np.string_:
value = most_common_value(num.array, threshold=0.45)
if value is not None:
self.set_flight_attr(value)
return
# Values of 0 are invalid flight numbers
array = np.ma.masked_less_equal(num.array, 0)
# Ignore masked values
compressed_array = array.compressed()
_, minvalue = min_value(compressed_array)
if minvalue < 0:
self.warning(
"'%s' only supports unsigned (positive) values > 0, "
"but none were found. Cannot determine flight number",
self.name)
self.set_flight_attr(None)
return
# note reverse of value, index from max_value due to bincount usage.
value, count = max_value(
np.bincount(compressed_array.astype(np.integer)))
if count > len(compressed_array) * 0.45:
# this value accounts for at least 45% of the values in the array
self.set_flight_attr(str(int(value)))
else:
self.warning("Only %d out of %d flight numbers were the same."
" Flight Number attribute will be set as None.",
count or 0, len(num.array))
self.set_flight_attr(None)
return
def _determine_pilot(self, pilot_flying, pitch_capt, pitch_fo, roll_capt,
roll_fo, cc_capt, cc_fo, phase, ap1, ap2):
if pilot_flying:
# this is the most reliable measurement, use this and no other
pf = pilot_flying.array[phase.slice]
pf[pf == '-'] = np.ma.masked
return most_common_value(pf)
#FIXME: Skip over the Pitch and Control Column parts!
# 1. Check for change in pitch and roll controls during the phase:
if all((pitch_capt, pitch_fo, roll_capt, roll_fo, phase)):
pilot = self._controls_in_use(
pitch_capt.array, pitch_fo.array, roll_capt.array,
roll_fo.array, phase)
if pilot:
return pilot
# 1. Check for changes in control column during the phase:
if all((cc_capt, cc_fo, phase)):
pilot = self._control_column_in_use(cc_capt.array, cc_fo.array,
phase)
if pilot:
return pilot
# 2. Check which autopilot is engaged:
if all((ap1, ap2)):
pilot = self._autopilot_engaged(ap1, ap2)
if pilot:
return pilot
return None
def derive(self,
num=P('Flight Number'),
mobiles=S('Mobile')):
# Limit to Mobile sections
num_array = mask_outside_slices(num.array, mobiles.get_slices())
# Q: Should we validate the flight number?
if num.array.dtype.type is np.string_:
value = most_common_value(num_array, threshold=0.45)
if value is not None:
# Only parse valid ASCII characters
try:
self.set_flight_attr(re.sub(r'[^\x00-\x7f]', r'', value.decode()))
except UnicodeDecodeError:
self.set_flight_attr(None)
return
# Values of 0 are invalid flight numbers
array = np.ma.masked_less_equal(num_array, 0)
# Ignore masked values
compressed_array = array.compressed()
_, minvalue = min_value(compressed_array)
if minvalue is None or minvalue < 0:
self.warning(
"'%s' only supports unsigned (positive) values > 0, "
"but none were found. Cannot determine flight number",
self.name)
self.set_flight_attr(None)
return
# note reverse of value, index from max_value due to bincount usage.
value, count = max_value(
np.bincount(compressed_array.astype(np.integer)))
if count > len(compressed_array) * 0.45:
# this value accounts for at least 45% of the values in the array
self.set_flight_attr(str(int(value)))
else:
self.warning("Only %d out of %d flight numbers were the same."
" Flight Number attribute will be set as None.",
count or 0, len(num.array))
self.set_flight_attr(None)
return
def derive(self, dest=P('Destination'),
afr_dest=A('AFR Destination Airport')):
'''
Requires an ASCII destination parameter recording either the airport's
ICAO or IATA code.
'''
if not dest or dest.array.dtype.type is not np.string_:
if afr_dest:
self.set_flight_attr(afr_dest.value)
return
value = most_common_value(dest.array, threshold=0.45)
if value is None or not value.isalpha():
return
api = get_api_handler(settings.API_HANDLER)
try:
airport = api.get_airport(value)
except NotFoundError:
self.warning('No destination airport found for %s.', value)
return
self.debug('Detected destination airport: %s', airport)
self.set_flight_attr(airport)
def derive(self, num=P('Eng (1) ESN')):
value = most_common_value(num.array, threshold=0.5)
if value is not None:
self.set_flight_attr(value)
def derive(self, num=P('Eng (4) ESN')):
value = most_common_value(num.array, threshold=0.5)
if value is not None:
self.set_flight_attr(value)