text: #
  # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with self work for additional information
  # regarding copyright ownership.  The ASF licenses self file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use self 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 endpoint_resolver_base import EndpointResolverBase
  
  
  class UserCustomizedEndpointResolver(EndpointResolverBase):
  
      def __init__(self):
          EndpointResolverBase.__init__(self)
          self._valid_region_ids = set()
  
      def put_endpoint_entry(self, region_id, product_code, endpoint):
          EndpointResolverBase.put_endpoint_entry(self, self._make_endpoint_entry_key(product_code, region_id), endpoint)
          self._valid_region_ids.add(region_id)
  
      def resolve(self, request):
          return self.fetch_endpoint_entry(request)
  
      def get_endpoint_key_from_request(self, request):
          return self._make_endpoint_entry_key(request.product_code, request.region_id)
  
      def _make_endpoint_entry_key(self, product_code, region_id):
          return product_code.lower() + "." + region_id.lower()
  
      def is_region_id_valid(self, region_id):
          return region_id in self._valid_region_ids
  
      def reset(self):
          self.endpoints_data = dict()
  