def send_later(self,
route: str,
headers: dict = None,
body: any = None,
reply_to: str = None,
me=True,
seconds: float = 1.0) -> None:
self.util.validate_service_name(route, True)
if isinstance(seconds, float) or isinstance(seconds, int):
if seconds > 0:
if headers is None and body is None:
raise ValueError(
'Unable to send because both headers and body are missing'
)
event = EventEnvelope().set_to(route)
if headers is not None:
if not isinstance(headers, dict):
raise ValueError('headers must be dict')
for h in headers:
event.set_header(str(h), str(headers[h]))
if body is not None:
event.set_body(body)
if reply_to is not None:
if not isinstance(reply_to, str):
raise ValueError('reply_to must be str')
# encode 'me' in the "call back" if replying to this instance
event.set_reply_to(reply_to, me)
self.platform.send_event_later(event, seconds)
else:
raise ValueError('delay in seconds must be larger than zero')
else:
raise ValueError('delay in seconds must be int or float')
def send_event_later(self,
event: EventEnvelope,
seconds: float = 1.0,
me=True):
if event.get_reply_to() is not None:
event.set_reply_to(event.get_reply_to(), me)
self.platform.send_event_later(event, seconds)
def request(self, event: EventEnvelope, timeout_seconds: float):
timeout_value = self.util.get_float(timeout_seconds)
if timeout_value <= 0:
raise ValueError(
'timeout value in seconds must be positive number')
if not isinstance(event, EventEnvelope):
raise ValueError('event object must be an EventEnvelope')
# restore distributed tracing info from current thread
trace_info = self.get_trace()
if trace_info:
if trace_info.get_route() is not None and event.get_from() is None:
event.set_from(trace_info.get_route())
if trace_info.get_id() is not None and trace_info.get_path(
) is not None:
event.set_trace(trace_info.get_id(), trace_info.get_path())
# emulate RPC
inbox = Inbox(self)
temp_route = inbox.get_route()
inbox_queue = inbox.get_queue()
try:
route = event.get_to()
event.set_reply_to(temp_route, me=True)
if route in self._function_queues:
self._loop.call_soon_threadsafe(self._send, route,
event.to_map())
else:
if self._cloud.is_connected():
self._cloud.send_payload({
'type': 'event',
'event': event.to_map()
})
else:
raise ValueError(f'route {route} not found')
# wait until response event is delivered to the inbox
return inbox_queue.get(True, timeout_value)
except Empty:
raise TimeoutError(
f'Route {event.get_to()} timeout for {round(timeout_value, 3)} seconds'
)
finally:
inbox.close()
def send_event(self, event: EventEnvelope, me=True):
if event.get_reply_to() is not None:
event.set_reply_to(event.get_reply_to(), me)
self.platform.send_event(event)