def publish_real_time_data_event(self, user_id, event_data):
'''Publish a real time data event to kafka
user_id The user identity token as a string
event_data A string representation of the feature vector for the real-time event data.
'''
# Initialize and publish a real time data event instance
event = DeviceRealTimeEvent(user_id, event_data)
self.producer.send_messages(KafkaEventsProducer.topic_real_time_events, event.serialize())
def consume_device_event(self, timeout=-1):
try:
msg = self.strategy.dispense_message(timeout)
assert(msg.topic == DeviceRealTimeEventsConsumer.topic_real_time_events)
event = DeviceRealTimeEvent.from_serialized(msg.value)
return event
except Queue.Empty:
pass
return None
