text: # -*- encoding: utf-8 -*-
  #
  # Copyright 2014 OpenStack Foundation
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  
  from oslo_log import log
  
  from panko import service
  from panko import storage
  
  
  LOG = log.getLogger(__name__)
  
  
  def dbsync():
      conf = service.prepare_service()
      storage.get_connection_from_config(conf).upgrade()
  
  
  def expirer():
      conf = service.prepare_service()
  
      if conf.database.event_time_to_live > 0:
          LOG.debug("Clearing expired event data")
          conn = storage.get_connection_from_config(conf)
          conn.clear_expired_data(conf.database.event_time_to_live)
      else:
          LOG.info("Nothing to clean, database event time to live "
                   "is disabled")
  