def document_to_telemetry(self, doc):
tel = Telemetry()
tel.set_state(doc['state'])
tel.set_doc_payload(doc["payload"])
tel.set_doc_data(doc["data"])
tel.set_n_data(doc["n_data"])
tel.set_lost_p(doc["lost_p"])
tel.set_l_data(doc["l_data"])
tel.set_p_status(doc["p_status"])
tel.set_obj_id(doc['_id'])
id_timestamp = doc["_id"].generation_time.strftime("%y-%m-%d %H:%M:%S")
tel.set_date(doc.get("date", id_timestamp)) # Compatible with < 0.4.6
return tel
def _process_tm(self, data):
ts = datetime.datetime.now(
datetime.timezone.utc).strftime("%y-%m-%d %H:%M:%S")
# Fix data ending with commands (Issue #4)
# This fix was added for compatibily with versions < 0.4.6 and can
# be removed in the future
if data[-1] == "," or data[-1] == "\n":
data = data[:-1]
# Split comma separated values
data = data.split(',')
# 1. Parse frames
# Header in all frames
t_frame = data[0] # type of frame
n_frame = data[1] # number of frame
# Header in all frames of type 0x1000 (Start) or 0x4000 (Simple)
t_data = data[2] # Type of payload
# Header in payloads frames (not tm_estado) of type 0x1000 (Start)
l_data = data[3] # length of data
p_status = data[4] # payload status
# 2. Parse data
_data_start = data[
5:] # data in frames 0x1000 (Start) and 0x4000 (Simple)
_data_conti = data[
2:] # data in frames 0x3000 (Conti) and 0x2000 (End)
# 3. Build telemetry
if t_frame == "0x0100" or t_frame == "0x0400": # it is a new frame o 0x4000
# First check if the last telemetry is alright
if len(self.telemetries) != 0:
# check if the last telemetry is finished
key, last_tel = self.telemetries.popitem()
if last_tel.get_state() != 2:
last_tel.set_state(3) # broken
self.telemetries[key] = last_tel
# Append a new telemetry
tel = Telemetry(date=ts)
tel.set_payload(t_data)
# Fix tm_estado simple vs tm_estado payload
# HACK: in tm_estado simple l_data=data[3] is the first data in the
# frame and can be only 0 or 1, but in tm_estado payload l_data is a
# big number > 1
is_simple_estado = tel.get_payload() == 0 and int(l_data, 16) <= 1
# Case simple tm_estado frame
if is_simple_estado:
tel.set_l_data("0x0001")
tel.set_p_status("0x0004")
# Fix tm_estado simple header to match payload format
# Add dummy [Time1,Time2]
tel.set_data(["0x0000", "0x0000"] + data[3:], n_frame)
# Case normal payload frame
else:
tel.set_l_data(l_data)
tel.set_p_status(p_status)
tel.set_data(_data_start, n_frame)
# Change status to received more frames
if t_frame == "0x0400":
tel.set_state(2) # Finished status
else:
tel.set_state(1) # Ongoing status
# Save current telemetry to DB
tel.save(self.mongo_client)
self.telemetries[tel.get_obj_id()] = tel
elif t_frame == "0x0200": # it is an ending frame
if len(self.telemetries
) != 0: # if this is not true something is wrong
key, tel = self.telemetries.popitem()
tel_state = tel.get_state()
# if the last frame was in progress (1) mark as finished,
# add new data and return element to list
if tel_state == 1:
tel.set_state(2) # mark finished
tel.set_data(_data_conti, n_frame)
tel.save(self.mongo_client)
self.telemetries[key] = tel
# if the last frame was finished, create a new one marked as
# broken and store in the list
elif tel_state == 2:
tel = Telemetry(date=ts)
tel.set_data(_data_conti, n_frame)
tel.set_state(3) # Mark broken
tel.save(self.mongo_client)
self.telemetries[tel.get_obj_id()] = tel
# other cases (borken, empty, etc), mark as broken, add new data
# and restore element to list
else:
tel.set_state(3) # mark broken
tel.set_data(_data_conti, n_frame)
tel.save(self.mongo_client)
self.telemetries[key] = tel
elif t_frame == "0x0300": # it is an ongoing frame
if len(self.telemetries
) != 0: # if this is not true something is wrong
key, tel = self.telemetries.popitem()
if tel.get_state() in (1, 3): # In progress or broken
tel.set_data(_data_conti, n_frame) # Update
tel.save(self.mongo_client) # Save
self.telemetries[key] = tel # Return to list
else: # tel.get_state() == 2: # last frame has finished
tel = Telemetry(date=ts) # New
tel.set_data(_data_conti, n_frame) # Update
tel.set_state(3) # Mark as broken
tel.save(self.mongo_client) # Save
self.telemetries[tel.get_obj_id()] = tel # Add to list
self.update_telemetry_table()
