text: # Copyright 2013 OpenStack Foundation
  # Copyright 2013 Hewlett-Packard Development Company, L.P.
  #
  #    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 trove.common import policy
  from trove.common import wsgi
  from trove.limits import views
  from trove.quota.quota import QUOTAS
  
  
  class LimitsController(wsgi.Controller):
      """
      Controller for accessing limits in the OpenStack API.
      """
  
      def index(self, req, tenant_id):
          """
          Return all absolute and rate limit information.
          """
          context = req.environ[wsgi.CONTEXT_KEY]
          policy.authorize_on_tenant(context, 'limits:index')
          quotas = QUOTAS.get_all_quotas_by_tenant(tenant_id)
          abs_limits = {k: v['hard_limit'] for k, v in quotas.items()}
          rate_limits = req.environ.get("trove.limits", [])
  
          return wsgi.Result(views.LimitViews(abs_limits,
                                              rate_limits).data(), 200)
  