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.
  
  import json
  import pecan
  
  from pecan import rest
  
  
  def abort(param, e):
      pass
  
  
  class TopologyController(rest.RestController):
      @staticmethod
      @pecan.expose('json')
      def get():
          # TODO(eyal) temporary mock
          graph_file = pecan.request.cfg.find_file('graph.sample.json')
          try:
              with open(graph_file) as data_file:
                  return json.load(data_file)
          except Exception as e:
              pecan.abort(404, str(e))
  