def _get_cycle_time(self, params):
#
# enter main menu
#
self._fsm.on_event(BarsProtocolEvent.ENTER_MAIN_MENU)
self._assert_state(BarsProtocolState.MAIN_MENU)
#
# enter change param menu
#
self._fsm.on_event(BarsProtocolEvent.ENTER_CHANGE_PARAMS, params)
self._assert_state(BarsProtocolState.CHANGE_PARAMS_MENU)
#
# save the menu to retrieve info below
#
menu = self._promptbuf
#
# exit change param menu
#
self._fsm.on_event(BarsProtocolEvent.EXIT_CHANGE_PARAMS)
self._assert_state(BarsProtocolState.MAIN_MENU)
#
# return to COLLECTING_DATA
#
self._fsm.on_event(BarsProtocolEvent.RESTART_DATA_COLLECTION)
self._assert_state(BarsProtocolState.COLLECTING_DATA)
#
# scan menu for requested value
#
seconds = None
mo = re.search(CYCLE_TIME_PATTERN, menu)
if mo is not None:
cycle_time_str = mo.group(1)
log.debug("scanned cycle_time_str='%s'" % str(cycle_time_str))
seconds = bars.get_cycle_time_seconds(cycle_time_str)
if seconds is None:
raise InstrumentProtocolException(
msg="Unexpected: string could not be matched: %s" % menu)
return seconds
def get(self, params, *args, **kwargs):
# TODO it only handles [(BarsChannel.INSTRUMENT,
# BarsParameter.TIME_BETWEEN_BURSTS)]
if log.isEnabledFor(logging.DEBUG):
log.debug("params=%s args=%s kwargs=%s" %
(str(params), str(args), str(kwargs)))
self._assert_state(DriverState.AUTOSAMPLE)
assert isinstance(params, list)
cp = (BarsChannel.INSTRUMENT, BarsParameter.TIME_BETWEEN_BURSTS)
assert params == [cp]
log.debug("breaking data streaming to enter main menu")
self.bars_client.enter_main_menu()
log.debug("select 2 to get system parameter menu")
self.bars_client.send('2')
self.bars_client.expect_generic_prompt()
buffer = self.bars_client.get_last_buffer()
log.debug("BUFFER='%s'" % repr(buffer))
string = bars.get_cycle_time(buffer)
log.debug("VALUE='%s'" % string)
seconds = bars.get_cycle_time_seconds(string)
if seconds is None:
raise InstrumentProtocolException(
msg="Unexpected: string could not be matched: %s" % string)
log.debug("send 3 to return to main menu")
self.bars_client.send('3')
self.bars_client.expect_generic_prompt()
buffer = self.bars_client.get_last_buffer()
log.debug("BUFFER='%s'" % repr(buffer))
log.debug("resume data streaming")
self.bars_client.send('1')
result = {cp: seconds}
return result
def get(self, params, *args, **kwargs):
# TODO only handles (INSTRUMENT, TIME_BETWEEN_BURSTS) for the moment
if log.isEnabledFor(logging.DEBUG):
log.debug("params=%s args=%s kwargs=%s" %
(str(params), str(args), str(kwargs)))
assert isinstance(params, list)
assert len(params) == 1
channel, param = cp = params[0]
assert channel == BarsChannel.INSTRUMENT
assert param == BarsParameter.TIME_BETWEEN_BURSTS
#
# enter main menu
#
self._fsm.on_event(BarsProtocolEvent.ENTER_MAIN_MENU)
self._assert_state(BarsProtocolState.MAIN_MENU)
#
# enter change param menu
#
self._fsm.on_event(BarsProtocolEvent.ENTER_CHANGE_PARAMS, params)
self._assert_state(BarsProtocolState.CHANGE_PARAMS_MENU)
#
# save the menu to retrieve info below
#
menu = self._promptbuf
#
# exit change param menu
#
self._fsm.on_event(BarsProtocolEvent.EXIT_CHANGE_PARAMS)
self._assert_state(BarsProtocolState.MAIN_MENU)
#
# return to COLLECTING_DATA
#
self._fsm.on_event(BarsProtocolEvent.RESTART_DATA_COLLECTION)
self._assert_state(BarsProtocolState.COLLECTING_DATA)
#
# scan menu for requested value
#
seconds = None
mo = re.search(CYCLE_TIME_PATTERN, menu)
if mo is not None:
cycle_time_str = mo.group(1)
log.debug("scanned cycle_time_str='%s'" % str(cycle_time_str))
seconds = bars.get_cycle_time_seconds(cycle_time_str)
if seconds is None:
raise InstrumentProtocolException(
msg="Unexpected: string could not be matched: %s" % string)
result = {cp: seconds}
return result