def handle(self, message: Message) -> None:
"""
Implement the reaction to a message.
:param message: the message
:return: None
"""
# convenience representations
fipa_msg = cast(FIPAMessage, message)
msg_performative = FIPAMessage.Performative(
message.get("performative"))
# recover dialogue
dialogues = cast(Dialogues, self.context.dialogues)
if dialogues.is_belonging_to_registered_dialogue(
fipa_msg, self.context.agent_address):
dialogue = cast(
Dialogue,
dialogues.get_dialogue(fipa_msg, self.context.agent_address))
dialogue.incoming_extend(fipa_msg)
else:
self._handle_unidentified_dialogue(fipa_msg)
return
# handle message
if msg_performative == FIPAMessage.Performative.PROPOSE:
self._handle_propose(fipa_msg, dialogue)
elif msg_performative == FIPAMessage.Performative.DECLINE:
self._handle_decline(fipa_msg, dialogue)
elif msg_performative == FIPAMessage.Performative.MATCH_ACCEPT_W_INFORM:
self._handle_match_accept(fipa_msg, dialogue)
elif msg_performative == FIPAMessage.Performative.INFORM:
self._handle_inform(fipa_msg, dialogue)
def decode(self, obj: bytes) -> Message:
"""Decode bytes into a FIPA message."""
fipa_pb = fipa_pb2.FIPAMessage()
fipa_pb.ParseFromString(obj)
message_id = fipa_pb.message_id
dialogue_reference = (
fipa_pb.dialogue_starter_reference,
fipa_pb.dialogue_responder_reference,
)
target = fipa_pb.target
performative = fipa_pb.WhichOneof("performative")
performative_id = FIPAMessage.Performative(str(performative))
performative_content = dict()
if performative_id == FIPAMessage.Performative.CFP:
query_type = fipa_pb.cfp.WhichOneof("query")
if query_type == "nothing":
query = None
elif query_type == "query_bytes":
query = pickle.loads(fipa_pb.cfp.query_bytes) # nosec
elif query_type == "bytes":
query = fipa_pb.cfp.bytes
else:
raise ValueError("Query type not recognized.") # pragma: no cover
performative_content["query"] = query
elif performative_id == FIPAMessage.Performative.PROPOSE:
descriptions = []
for p_bytes in fipa_pb.propose.proposal:
p = pickle.loads(p_bytes) # nosec
p = cast(Description, p)
descriptions.append(p)
performative_content["proposal"] = descriptions
elif performative_id == FIPAMessage.Performative.ACCEPT:
pass
elif performative_id == FIPAMessage.Performative.MATCH_ACCEPT:
pass
elif performative_id == FIPAMessage.Performative.ACCEPT_W_INFORM:
info = pickle.loads(fipa_pb.accept_w_inform.bytes) # nosec
performative_content["info"] = info
elif performative_id == FIPAMessage.Performative.MATCH_ACCEPT_W_INFORM:
info = pickle.loads(fipa_pb.match_accept_w_inform.bytes) # nosec
performative_content["info"] = info
elif performative_id == FIPAMessage.Performative.DECLINE:
pass
elif performative_id == FIPAMessage.Performative.INFORM:
info = pickle.loads(fipa_pb.inform.bytes) # nosec
performative_content["info"] = info
else:
raise ValueError("Performative not valid: {}.".format(performative))
return FIPAMessage(
message_id=message_id,
dialogue_reference=dialogue_reference,
target=target,
performative=performative,
**performative_content
)