in 04_streaming/transform/df05.py [0:0]
def get_next_event(fields):
if len(fields["DEP_TIME"]) > 0:
event = dict(fields) # copy
event["EVENT_TYPE"] = "departed"
event["EVENT_TIME"] = fields["DEP_TIME"]
for f in ["TAXI_OUT", "WHEELS_OFF", "WHEELS_ON", "TAXI_IN", "ARR_TIME", "ARR_DELAY", "DISTANCE"]:
event.pop(f, None) # not knowable at departure time
yield event
if len(fields["ARR_TIME"]) > 0:
event = dict(fields)
event["EVENT_TYPE"] = "arrived"
event["EVENT_TIME"] = fields["ARR_TIME"]
yield event