app-MAIL-temp/events/runner.py

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import arrow
import newrelic.agent
from app.log import LOG
from app.models import SyncEvent
from events.event_sink import EventSink
from events.event_source import EventSource
class Runner:
def __init__(self, source: EventSource, sink: EventSink):
self.__source = source
self.__sink = sink
def run(self):
self.__source.run(self.__on_event)
@newrelic.agent.background_task()
def __on_event(self, event: SyncEvent):
try:
event_created_at = event.created_at
start_time = arrow.now()
success = self.__sink.process(event)
if success:
event_id = event.id
SyncEvent.delete(event.id, commit=True)
LOG.info(f"Marked {event_id} as done")
end_time = arrow.now() - start_time
time_between_taken_and_created = start_time - event_created_at
newrelic.agent.record_custom_metric("Custom/sync_event_processed", 1)
newrelic.agent.record_custom_metric(
"Custom/sync_event_process_time", end_time.total_seconds()
)
newrelic.agent.record_custom_metric(
"Custom/sync_event_elapsed_time",
time_between_taken_and_created.total_seconds(),
)
except Exception as e:
LOG.warn(f"Exception processing event [id={event.id}]: {e}")
newrelic.agent.record_custom_metric("Custom/sync_event_failed", 1)