def execute(self, p_request: ExportRequest = None):
""" Executes the export operation """
self._prepare_before_execute(p_request)
try:
self._status = ExportStatus.BUSY
log = Log()
log.append_text("Starting data export")
self.request.dispatcher.export_data_begin()
source_db = self.request.dispatcher.get_client_database(
self.request.client)
package = Exporter._pull(source_db)
Exporter._push(package, self.request.target_db)
except Exception as error: # pylint: disable=W0703
error_entry = LogEntry(str(error), p_type=MessageType.error)
log.append_entry(error_entry)
finally:
self.request.dispatcher.export_data_end()
log.append_text("Data export finished")
try:
self.request.target_db.insert_log(log)
except Exception: # pylint: disable=W0703
pass
self._status = ExportStatus.IDLE
print("Export complete")
def _drive_passenger(self, p_client: Client,
p_client_passenger: ClientPassenger):
if self.paused or self._status.shutting_down:
return
log = Log()
db = None # pylint: disable=C0103
driver = None
try:
log.append_text("Dispatching client " + p_client.id +
" passenger " + p_client_passenger.name)
log.append_text(f"Creating database {self.ticket.database_module}")
db = self.get_client_database(p_client.id, log) # pylint: disable=C0103
log.append_text("Checking schema")
db.ensure_schema_existence()
log.append_text(f"Creating driver {self.ticket.driver_module}")
driver = self.get_driver()
log.append_text("Creating ticket")
ticket = BusTicket(p_client_passenger=p_client_passenger,
p_log=log,
p_database=db)
log.append_text("Driving")
driver.drive(ticket)
except Exception as drive_error: # pylint: disable=W0703
if log is not None:
log.append_entry(
LogEntry(p_message=str(drive_error),
p_type=MessageType.error))
finally:
self._tick_count.reset_tick(p_client.id, p_client_passenger.name)
if self.ticket.dispatcher_observer is not None and log is not None:
self.ticket.dispatcher_observer.drive_passenger_complete(
p_client, p_client_passenger, log)
if db is not None:
db.insert_log(log)
db.delete_old_logs(p_client.log_expiry_date)
if driver is not None:
driver.queue.delete_completed_passengers(
p_client_passenger.name,
p_client_passenger.queue_expiry_date)