def _broadcast(agent, term, intention):
# Illocutionary force.
ilf = agentspeak.grounded(term.args[0], intention.scope)
if not agentspeak.is_atom(ilf):
return
if ilf.functor == "tell":
goal_type = agentspeak.GoalType.belief
trigger = agentspeak.Trigger.addition
elif ilf.functor == "untell":
goal_type = agentspeak.GoalType.belief
trigger = agentspeak.Trigger.removal
elif ilf.functor == "achieve":
goal_type = agentspeak.GoalType.achievement
trigger = agentspeak.Trigger.addition
else:
raise agentspeak.AslError("unknown illocutionary force: %s" % ilf)
# Prepare message.
message = agentspeak.freeze(term.args[1], intention.scope, {})
tagged_message = message.with_annotation(
agentspeak.Literal("source", (agentspeak.Literal(agent.name), )))
# Broadcast.
for receiver in agent.env.agents.values():
if receiver == agent:
continue
receiver.call(trigger, goal_type, tagged_message,
agentspeak.runtime.Intention())
yield
def _wait(agent, term, intention):
# Handle optional arguments.
args = [agentspeak.grounded(arg, intention.scope) for arg in term.args]
if len(args) == 2:
event, millis = args
else:
if agentspeak.is_number(args[0]):
millis = args[0]
event = None
else:
millis = None
event = args[0]
# Type checks.
if not (millis is None or agentspeak.is_number(millis)):
raise agentspeak.AslError("expected timeout for .wait to be numeric")
if not (event is None or agentspeak.is_string(event)):
raise agentspeak.AslError("expected event for .wait to be a string")
# Event.
if event is not None:
# Parse event.
if not event.endswith("."):
event += "."
log = agentspeak.Log(LOGGER, 1)
tokens = agentspeak.lexer.TokenStream(
agentspeak.StringSource("<.wait>", event), log)
tok, ast_event = agentspeak.parser.parse_event(tokens.next(), tokens,
log)
if tok.lexeme != ".":
raise log.error(
"expected no further tokens after event for .wait, got: '%s'",
tok.lexeme,
loc=tok.loc)
# Build term.
event = ast_event.accept(agentspeak.runtime.BuildEventVisitor(log))
# Timeout.
if millis is None:
until = None
else:
until = agent.env.time() + millis / 1000
# Create waiter.
intention.waiter = agentspeak.runtime.Waiter(event=event, until=until)
yield
async def run(self):
"""
Coroutine run cyclic.
"""
if self.agent.bdi_enabled:
msg = await self.receive(timeout=0)
if msg:
mdata = msg.metadata
ilf_type = mdata["ilf_type"]
if ilf_type == "tell":
goal_type = asp.GoalType.belief
trigger = asp.Trigger.addition
elif ilf_type == "untell":
goal_type = asp.GoalType.belief
trigger = asp.Trigger.removal
elif ilf_type == "achieve":
goal_type = asp.GoalType.achievement
trigger = asp.Trigger.addition
else:
raise asp.AslError(
"unknown illocutionary force: {}".format(ilf_type))
intention = asp.runtime.Intention()
functor, args = parse_literal(msg.body)
message = asp.Literal(functor, args)
message = asp.freeze(message, intention.scope, {})
tagged_message = message.with_annotation(
asp.Literal("source",
(asp.Literal(str(msg.sender)), )))
self.agent.bdi_intention_buffer.append(
(trigger, goal_type, tagged_message, intention))
if self.agent.bdi_intention_buffer:
temp_intentions = deque(self.agent.bdi_intention_buffer)
for trigger, goal_type, term, intention in temp_intentions:
self.agent.bdi_agent.call(trigger, goal_type, term,
intention)
'''self.agent.bdi_agent.step()'''
self.agent.bdi_intention_buffer.popleft()
self.agent.bdi_agent.step()
else:
await asyncio.sleep(0.1)
def _send(agent, term, intention):
# Find the receivers: By a string, atom or list of strings or atoms.
receivers = agentspeak.grounded(term.args[0], intention.scope)
if not agentspeak.is_list(receivers):
receivers = [receivers]
receiving_agents = []
for receiver in receivers:
if agentspeak.is_atom(receiver):
receiving_agents.append(agent.env.agents[receiver.functor])
else:
receiving_agents.append(agent.env.agents[receiver])
# Illocutionary force.
ilf = agentspeak.grounded(term.args[1], intention.scope)
if not agentspeak.is_atom(ilf):
return
if ilf.functor == "tell":
goal_type = agentspeak.GoalType.belief
trigger = agentspeak.Trigger.addition
elif ilf.functor == "untell":
goal_type = agentspeak.GoalType.belief
trigger = agentspeak.Trigger.removal
elif ilf.functor == "achieve":
goal_type = agentspeak.GoalType.achievement
trigger = agentspeak.Trigger.addition
else:
raise agentspeak.AslError("unknown illocutionary force: %s" % ilf)
# TODO: unachieve, askOne, askAll, tellHow, untellHow, askHow
# Prepare message.
message = agentspeak.freeze(term.args[2], intention.scope, {})
tagged_message = message.with_annotation(
agentspeak.Literal("source", (agentspeak.Literal(agent.name), )))
# Broadcast.
for receiver in receiving_agents:
receiver.call(trigger, goal_type, tagged_message,
agentspeak.runtime.Intention())
yield