text: # Copyright 2010 United States Government as represented by the
  # Administrator of the National Aeronautics and Space Administration.
  # All Rights Reserved.
  #
  #    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.
  
  """
  WSGI middleware for OpenStack Compute API.
  """
  
  from oslo.config import cfg
  
  import nova.api.openstack
  from nova.api.openstack.compute import consoles
  from nova.api.openstack.compute import extensions
  from nova.api.openstack.compute import flavors
  from nova.api.openstack.compute import image_metadata
  from nova.api.openstack.compute import ips
  from nova.api.openstack.compute import limits
  from nova.api.openstack.compute import plugins
  from nova.api.openstack.compute import server_metadata
  from nova.api.openstack.compute import servers
  from nova.api.openstack.compute import versions
  
  from paxes_nova.api.openstack.compute import images
  
  allow_instance_snapshots_opt = cfg.BoolOpt('allow_instance_snapshots',
          default=True,
          help='Permit instance snapshot operations.')
  
  CONF = cfg.CONF
  CONF.register_opt(allow_instance_snapshots_opt)
  
  
  class APIRouter(nova.api.openstack.APIRouter):
      """Routes requests on the OpenStack API to the appropriate controller
      and method.
      """
      ExtensionManager = extensions.ExtensionManager
  
      def _setup_routes(self, mapper, ext_mgr, init_only):
          if init_only is None or 'versions' in init_only:
              self.resources['versions'] = versions.create_resource()
              mapper.connect("versions", "/",
                          controller=self.resources['versions'],
                          action='show',
                          conditions={"method": ['GET']})
  
          mapper.redirect("", "/")
  
          if init_only is None or 'consoles' in init_only:
              self.resources['consoles'] = consoles.create_resource()
              mapper.resource("console", "consoles",
                          controller=self.resources['consoles'],
                          parent_resource=dict(member_name='server',
                          collection_name='servers'))
  
          if init_only is None or 'consoles' in init_only or \
                  'servers' in init_only or 'ips' in init_only:
              self.resources['servers'] = servers.create_resource(ext_mgr)
              mapper.resource("server", "servers",
                              controller=self.resources['servers'],
                              collection={'detail': 'GET'},
                              member={'action': 'POST'})
  
          if init_only is None or 'ips' in init_only:
              self.resources['ips'] = ips.create_resource()
              mapper.resource("ip", "ips", controller=self.resources['ips'],
                              parent_resource=dict(member_name='server',
                                                   collection_name='servers'))
  
          if init_only is None or 'images' in init_only:
              self.resources['images'] = images.create_resource()
              mapper.resource("image", "images",
                              controller=self.resources['images'],
                              collection={'detail': 'GET'})
  
          if init_only is None or 'limits' in init_only:
              self.resources['limits'] = limits.create_resource()
              mapper.resource("limit", "limits",
                              controller=self.resources['limits'])
  
          if init_only is None or 'flavors' in init_only:
              self.resources['flavors'] = flavors.create_resource()
              mapper.resource("flavor", "flavors",
                              controller=self.resources['flavors'],
                              collection={'detail': 'GET'},
                              member={'action': 'POST'})
  
          if init_only is None or 'image_metadata' in init_only:
              self.resources['image_metadata'] = image_metadata.create_resource()
              image_metadata_controller = self.resources['image_metadata']
  
              mapper.resource("image_meta", "metadata",
                              controller=image_metadata_controller,
                              parent_resource=dict(member_name='image',
                              collection_name='images'))
  
              mapper.connect("metadata",
                             "/{project_id}/images/{image_id}/metadata",
                             controller=image_metadata_controller,
                             action='update_all',
                             conditions={"method": ['PUT']})
  
          if init_only is None or 'server_metadata' in init_only:
              self.resources['server_metadata'] = \
                  server_metadata.create_resource()
              server_metadata_controller = self.resources['server_metadata']
  
              mapper.resource("server_meta", "metadata",
                              controller=server_metadata_controller,
                              parent_resource=dict(member_name='server',
                              collection_name='servers'))
  
              mapper.connect("metadata",
                             "/{project_id}/servers/{server_id}/metadata",
                             controller=server_metadata_controller,
                             action='update_all',
                             conditions={"method": ['PUT']})
  
  
  class APIRouterV3(nova.api.openstack.APIRouterV3):
      """Routes requests on the OpenStack API to the appropriate controller
      and method.
      """
      def __init__(self, init_only=None):
          self._loaded_extension_info = plugins.LoadedExtensionInfo()
          super(APIRouterV3, self).__init__(init_only)
  
      def _register_extension(self, ext):
          return self.loaded_extension_info.register_extension(ext.obj)
  
      @property
      def loaded_extension_info(self):
          return self._loaded_extension_info
  