def __call__(self, lines):
"""
Main function
accepts a list of raw strings from the car, split by lines
"""
# ---------------------------- preprocess ----------------------------
# Non-hex (non-OBD) lines shouldn't go through the big parsers,
# since they are typically messages such as: "NO DATA", "CAN ERROR",
# "UNABLE TO CONNECT", etc, so sort them into these two lists:
obd_lines = []
non_obd_lines = []
for line in lines:
line_no_spaces = line.replace(' ', '')
if isHex(line_no_spaces):
obd_lines.append(line_no_spaces)
else:
non_obd_lines.append(
line) # pass the original, un-scrubbed line
# ---------------------- handle valid OBD lines ----------------------
# parse each frame (each line)
frames = []
for line in obd_lines:
frame = Frame(line)
# subclass function to parse the lines into Frames
# drop frames that couldn't be parsed
if self.parse_frame(frame):
frames.append(frame)
# group frames by transmitting ECU
# frames_by_ECU[tx_id] = [Frame, Frame]
frames_by_ECU = {}
for frame in frames:
if frame.tx_id not in frames_by_ECU:
frames_by_ECU[frame.tx_id] = [frame]
else:
frames_by_ECU[frame.tx_id].append(frame)
# parse frames into whole messages
messages = []
for ecu in frames_by_ECU:
# new message object with a copy of the raw data
# and frames addressed for this ecu
message = Message(frames_by_ECU[ecu])
# subclass function to assemble frames into Messages
if self.parse_message(message):
# mark with the appropriate ECU ID
message.ecu = self.ecu_map.get(ecu, ECU.UNKNOWN)
messages.append(message)
# ----------- handle invalid lines (probably from the ELM) -----------
for line in non_obd_lines:
# give each line its own message object
# messages are ECU.UNKNOWN by default
messages.append(Message([Frame(line)]))
return messages
def __call__(self, lines):
"""
Main function
accepts a list of raw strings from the car, split by lines
"""
# ---------------------------- preprocess ----------------------------
# Non-hex (non-OBD) lines shouldn't go through the big parsers,
# since they are typically messages such as: "NO DATA", "CAN ERROR",
# "UNABLE TO CONNECT", etc, so sort them into these two lists:
obd_lines = []
non_obd_lines = []
for line in lines:
line_no_spaces = line.replace(' ', '')
if isHex(line_no_spaces):
obd_lines.append(line_no_spaces)
else:
non_obd_lines.append(line) # pass the original, un-scrubbed line
# ---------------------- handle valid OBD lines ----------------------
# parse each frame (each line)
frames = []
for line in obd_lines:
frame = Frame(line)
# subclass function to parse the lines into Frames
# drop frames that couldn't be parsed
if self.parse_frame(frame):
frames.append(frame)
# group frames by transmitting ECU
# frames_by_ECU[tx_id] = [Frame, Frame]
frames_by_ECU = {}
for frame in frames:
if frame.tx_id not in frames_by_ECU:
frames_by_ECU[frame.tx_id] = [frame]
else:
frames_by_ECU[frame.tx_id].append(frame)
# parse frames into whole messages
messages = []
for ecu in sorted(frames_by_ECU.keys()):
# new message object with a copy of the raw data
# and frames addressed for this ecu
message = Message(frames_by_ECU[ecu])
# subclass function to assemble frames into Messages
if self.parse_message(message):
# mark with the appropriate ECU ID
message.ecu = self.ecu_map.get(ecu, ECU.UNKNOWN)
messages.append(message)
# ----------- handle invalid lines (probably from the ELM) -----------
for line in non_obd_lines:
# give each line its own message object
# messages are ECU.UNKNOWN by default
messages.append(Message([Frame(line)]))
return messages
