old_contents: # Copyright (c) 2016, Daniele Venzano
  #
  # 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.
  
  """The Discovery API endpoint."""
  
  from tornado.web import RequestHandler
  
  from zoe_api.api_endpoint import APIEndpoint  # pylint: disable=unused-import
  from zoe_api.rest_api.utils import catch_exceptions
  
  
  class DiscoveryAPI(RequestHandler):
      """The Discovery API endpoint."""
  
      def initialize(self, **kwargs):
          """Initializes the request handler."""
          self.api_endpoint = kwargs['api_endpoint']  # type: APIEndpoint
          
      def set_default_headers(self):
          """Set up the headers for enabling CORS."""
          self.set_header("Access-Control-Allow-Origin", "*")
          self.set_header("Access-Control-Allow-Headers", "x-requested-with, Content-Type, origin, authorization, accept, client-security-token")
          self.set_header("Access-Control-Allow-Methods", "GET")
          self.set_header("Access-Control-Max-Age", "1000")
          
      def options(self):
          """Needed for CORS."""
          self.set_status(204)
          self.finish()
  
      @catch_exceptions
      def get(self, execution_id: int, service_group: str):
          """HTTP GET method."""
          self.api_endpoint.execution_by_id(0, 'admin', execution_id)
          if service_group != 'all':
              services = self.api_endpoint.service_list(0, 'admin', service_group=service_group, execution_id=execution_id)
          else:
              services = self.api_endpoint.service_list(0, 'admin', execution_id=execution_id)
          ret = {
              'service_type': service_group,
              'execution_id': execution_id,
              'dns_names': [s.dns_name for s in services]
          }
  
          self.write(ret)
  
      def data_received(self, chunk):
          """Not implemented as we do not use stream uploads"""
          pass
  
new_contents: # Copyright (c) 2016, Daniele Venzano
  #
  # 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.
  
  """The Discovery API endpoint."""
  
  from tornado.web import RequestHandler
  
  from zoe_api.api_endpoint import APIEndpoint  # pylint: disable=unused-import
  from zoe_api.rest_api.utils import catch_exceptions
  
  
  class DiscoveryAPI(RequestHandler):
      """The Discovery API endpoint."""
  
      def initialize(self, **kwargs):
          """Initializes the request handler."""
          self.api_endpoint = kwargs['api_endpoint']  # type: APIEndpoint
          
      def set_default_headers(self):
          """Set up the headers for enabling CORS."""
          self.set_header("Access-Control-Allow-Origin", "*")
          self.set_header("Access-Control-Allow-Headers", "x-requested-with, Content-Type, origin, authorization, accept, client-security-token")
          self.set_header("Access-Control-Allow-Methods", "OPTIONS, GET")
          self.set_header("Access-Control-Max-Age", "1000")
          
      def options(self):
          """Needed for CORS."""
          self.set_status(204)
          self.finish()
  
      @catch_exceptions
      def get(self, execution_id: int, service_group: str):
          """HTTP GET method."""
          self.api_endpoint.execution_by_id(0, 'admin', execution_id)
          if service_group != 'all':
              services = self.api_endpoint.service_list(0, 'admin', service_group=service_group, execution_id=execution_id)
          else:
              services = self.api_endpoint.service_list(0, 'admin', execution_id=execution_id)
          ret = {
              'service_type': service_group,
              'execution_id': execution_id,
              'dns_names': [s.dns_name for s in services]
          }
  
          self.write(ret)
  
      def data_received(self, chunk):
          """Not implemented as we do not use stream uploads"""
          pass
  
subject: Update discovery.py