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quay/workers/notificationworker.py

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from app import notification_queue
from data.model.notification import increment_notification_failure_count, reset_number_of_failures_to_zero
from endpoints.notificationmethod import NotificationMethod, InvalidNotificationMethodException
from endpoints.notificationevent import NotificationEvent, InvalidNotificationEventException
from workers.queueworker import QueueWorker, JobException
from data import model
from data.model import InvalidNotificationException
class NotificationWorker(QueueWorker):
def process_queue_item(self, job_details):
notification_uuid = job_details['notification_uuid']
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try:
notification = model.notification.get_enabled_notification(notification_uuid)
except InvalidNotificationException:
return
event_name = notification.event.name
method_name = notification.method.name
try:
event_handler = NotificationEvent.get_event(event_name)
method_handler = NotificationMethod.get_method(method_name)
except InvalidNotificationMethodException as ex:
logger.exception('Cannot find notification method: %s', ex.message)
raise JobException('Cannot find notification method: %s' % ex.message)
except InvalidNotificationEventException as ex:
logger.exception('Cannot find notification event: %s', ex.message)
raise JobException('Cannot find notification event: %s' % ex.message)
if event_handler.should_perform(job_details['event_data'], notification):
try:
method_handler.perform(notification, event_handler, job_details)
reset_number_of_failures_to_zero(notification.id)
except (NotificationMethod, KeyError) as exc:
increment_notification_failure_count(notification.id)
raise exc
if __name__ == "__main__":
worker = NotificationWorker(notification_queue, poll_period_seconds=10, reservation_seconds=30,
retry_after_seconds=30)
worker.start()