text: # 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 versionutils
  
  import keystone.conf
  from keystone.token.persistence.backends import memcache
  
  
  CONF = keystone.conf.CONF
  
  
  class Token(memcache.Token):
      memcached_backend = 'pooled_memcached'
  
      @versionutils.deprecated(
          what='Memcache Pool Token Persistence Driver',
          as_of=versionutils.deprecated.MITAKA,
          in_favor_of='fernet token driver (no-persistence)',
          remove_in=0)
      def __init__(self, *args, **kwargs):
          for arg in ('dead_retry', 'socket_timeout', 'pool_maxsize',
                      'pool_unused_timeout', 'pool_connection_get_timeout'):
              kwargs[arg] = getattr(CONF.memcache, arg)
          super(Token, self).__init__(*args, **kwargs)
  