def __init__(self, prompts, newline, driver_event):
"""
Protocol constructor.
@param prompts A BaseEnum class containing instrument prompts.
@param newline The newline.
@param driver_event Driver process event callback.
"""
CommandResponseInstrumentProtocol.__init__(self, prompts, newline,
driver_event)
self._protocol_fsm = InstrumentFSM(ProtocolState, ProtocolEvent,
ProtocolEvent.ENTER,
ProtocolEvent.EXIT)
handlers = {
ProtocolState.UNKNOWN:
[(ProtocolEvent.ENTER, self._handler_unknown_enter),
(ProtocolEvent.EXIT, self._handler_unknown_exit)],
}
for state in handlers:
for event, handler in handlers[state]:
self._protocol_fsm.add_handler(state, event, handler)
# State state machine in UNKNOWN state.
self._protocol_fsm.start(ProtocolState.UNKNOWN)
# create chunker for processing instrument samples.
self._chunker = StringChunker(self.sieve_function)
def __init__(self, prompts, newline, driver_event):
"""
Protocol constructor.
@param prompts A BaseEnum class containing instrument prompts.
@param newline The newline.
@param driver_event Driver process event callback.
"""
CommandResponseInstrumentProtocol.__init__(self, prompts, newline, driver_event)
self._protocol_fsm = InstrumentFSM(ProtocolState,
ProtocolEvent,
ProtocolEvent.ENTER,
ProtocolEvent.EXIT)
handlers = {
ProtocolState.UNKNOWN: [
(ProtocolEvent.ENTER, self._handler_unknown_enter),
(ProtocolEvent.EXIT, self._handler_unknown_exit)
],
}
for state in handlers:
for event, handler in handlers[state]:
self._protocol_fsm.add_handler(state, event, handler)
# State state machine in UNKNOWN state.
self._protocol_fsm.start(ProtocolState.UNKNOWN)
# create chunker for processing instrument samples.
self._chunker = StringChunker(self.sieve_function)
class Protocol(CommandResponseInstrumentProtocol):
"""
Instrument protocol class
Subclasses NortekInstrumentProtocol
"""
def __init__(self, prompts, newline, driver_event):
"""
Protocol constructor.
@param prompts A BaseEnum class containing instrument prompts.
@param newline The newline.
@param driver_event Driver process event callback.
"""
CommandResponseInstrumentProtocol.__init__(self, prompts, newline, driver_event)
self._protocol_fsm = InstrumentFSM(ProtocolState,
ProtocolEvent,
ProtocolEvent.ENTER,
ProtocolEvent.EXIT)
handlers = {
ProtocolState.UNKNOWN: [
(ProtocolEvent.ENTER, self._handler_unknown_enter),
(ProtocolEvent.EXIT, self._handler_unknown_exit)
],
}
for state in handlers:
for event, handler in handlers[state]:
self._protocol_fsm.add_handler(state, event, handler)
# State state machine in UNKNOWN state.
self._protocol_fsm.start(ProtocolState.UNKNOWN)
# create chunker for processing instrument samples.
self._chunker = StringChunker(self.sieve_function)
@classmethod
def sieve_function(cls, raw_data):
"""
The method that detects data sample structures from instrument
Should be in the format [[structure_sync_bytes, structure_len]*]
"""
return_list = []
sieve_matchers = [VELOCITY_DATA_REGEX]
for matcher in sieve_matchers:
for match in matcher.finditer(raw_data):
return_list.append((match.start(), match.end()))
log.debug("sieve_function: regex found %r", raw_data[match.start():match.end()])
return return_list
########################################################################
# overridden superclass methods
########################################################################
def _got_chunk(self, structure, timestamp):
"""
The base class got_data has gotten a structure from the chunker. Pass it to extract_sample
with the appropriate particle objects and REGEXes.
"""
self._extract_sample(AquadoppDwVelocityAsciiDataParticle, VELOCITY_DATA_REGEX, structure, timestamp)
########################################################################
# Unknown handlers.
########################################################################
def _handler_unknown_enter(self, *args, **kwargs):
"""
Enter unknown state.
"""
self._driver_event(DriverAsyncEvent.STATE_CHANGE)
def _handler_unknown_exit(self, *args, **kwargs):
"""
Exiting Unknown state
"""
pass
class Protocol(CommandResponseInstrumentProtocol):
"""
Instrument protocol class
Subclasses NortekInstrumentProtocol
"""
def __init__(self, prompts, newline, driver_event):
"""
Protocol constructor.
@param prompts A BaseEnum class containing instrument prompts.
@param newline The newline.
@param driver_event Driver process event callback.
"""
CommandResponseInstrumentProtocol.__init__(self, prompts, newline,
driver_event)
self._protocol_fsm = InstrumentFSM(ProtocolState, ProtocolEvent,
ProtocolEvent.ENTER,
ProtocolEvent.EXIT)
handlers = {
ProtocolState.UNKNOWN:
[(ProtocolEvent.ENTER, self._handler_unknown_enter),
(ProtocolEvent.EXIT, self._handler_unknown_exit)],
}
for state in handlers:
for event, handler in handlers[state]:
self._protocol_fsm.add_handler(state, event, handler)
# State state machine in UNKNOWN state.
self._protocol_fsm.start(ProtocolState.UNKNOWN)
# create chunker for processing instrument samples.
self._chunker = StringChunker(self.sieve_function)
@classmethod
def sieve_function(cls, raw_data):
"""
The method that detects data sample structures from instrument
Should be in the format [[structure_sync_bytes, structure_len]*]
"""
return_list = []
sieve_matchers = [VELOCITY_DATA_REGEX]
for matcher in sieve_matchers:
for match in matcher.finditer(raw_data):
return_list.append((match.start(), match.end()))
log.debug("sieve_function: regex found %r",
raw_data[match.start():match.end()])
return return_list
########################################################################
# overridden superclass methods
########################################################################
def _got_chunk(self, structure, timestamp):
"""
The base class got_data has gotten a structure from the chunker. Pass it to extract_sample
with the appropriate particle objects and REGEXes.
"""
self._extract_sample(AquadoppDwVelocityAsciiDataParticle,
VELOCITY_DATA_REGEX, structure, timestamp)
########################################################################
# Unknown handlers.
########################################################################
def _handler_unknown_enter(self, *args, **kwargs):
"""
Enter unknown state.
"""
self._driver_event(DriverAsyncEvent.STATE_CHANGE)
def _handler_unknown_exit(self, *args, **kwargs):
"""
Exiting Unknown state
"""
pass
