def sendCpdlcMsg(self, callsign, msg):
link = env.cpdlc.currentDataLink(callsign)
if link == None:
return
if msg.type() == CpdlcMessage.ACK and link.msgCount() > 0:
last_msg = link.lastMsg()
if not last_msg.isFromMe() and last_msg.type() == CpdlcMessage.INSTR \
and yesNo_question(self.gui, 'ACK after received INSTR', last_msg.contents(), 'Execute instruction?'):
try:
instr = Instruction.fromEncodedStr(last_msg.contents())
self.instructAircraftByCallsign(callsign, instr)
except ValueError: # raised by Instruction.fromEncodedStr
if not yesNo_question(self.gui, 'CPDLC comm error', \
'Unable to decode instruction.', 'Send ACK and perform manually?'):
return # cancel sending any message
except Instruction.Error as err: # raised by TeacherSessionManager.instructAircraftByCallsign
if not yesNo_question(self.gui, 'CPDLC instruction error', \
'Unable to perform instruction: %s' % err, 'Send ACK anyway?'):
return # cancel sending any message
else: # no problem executing instruction
selection.writeStripAssignment(instr)
if self.studentConnected() and link != None:
link.appendMessage(msg)
self.student.sendMessage(
TeachingMsg(
TeachingMsg.CPDLC,
data=('%s\n%s%s' %
(callsign, CPDLC_message_cmd_prefix, msg.text()))))
def sendCpdlcMsg(self, callsign, msg):
link = env.cpdlc.currentDataLink(callsign)
if link != None:
link.appendMessage(msg)
if msg.type(
) == CpdlcMessage.INSTR: # other message types ignored (unimplemented in solo)
try:
acft = next(
a for a in self.controlled_traffic if a.identifier ==
callsign) # uncontrolled traffic is not in contact
acft.instruct([Instruction.fromEncodedStr(msg.contents())])
# FUTURE ingest before instruct to allow exception raised or (delayed?) WILCO msg before actually executing
except StopIteration: # ACFT not found or not connected
print('WARNING: Aircraft %s not found.' % callsign)
except Instruction.Error as err: # raised by ControlledAircraft.instruct
link.appendMessage(
CpdlcMessage(False,
CpdlcMessage.REJECT,
contents=str(err)))
else: # instruction sent and already accepted
link.appendMessage(CpdlcMessage(False, CpdlcMessage.ACK))
def ackButtonClicked(self):
if self.data_link_model.msgCount() > 0:
last_msg = self.data_link_model.lastMsg()
if not last_msg.isFromMe() and last_msg.type(
) == CpdlcMessage.REQUEST:
try:
instr = Instruction.fromEncodedStr(last_msg.contents())
except ValueError:
QMessageBox.critical(
self, 'CPDLC comm error',
'Unable to decode request. Mismatching program versions?'
)
else:
selection.writeStripAssignment(instr)
msg = CpdlcMessage(True,
CpdlcMessage.INSTR,
contents=instr.encodeToStr())
settings.session_manager.sendCpdlcMsg(
self.data_link_model.acftCallsign(), msg)
return
msg = CpdlcMessage(True, CpdlcMessage.ACK)
settings.session_manager.sendCpdlcMsg(
self.data_link_model.acftCallsign(), msg)