text: # Copyright 2015 Rackspace Inc.
  #
  # Author: Tim Simmons <tim.simmons@rackspae.com>
  #
  # 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 pecan
  from oslo_log import log as logging
  
  from designate import exceptions
  from designate import policy
  from designate import utils
  from designate.api.v2.controllers import rest
  from designate.objects.adapters import DesignateAdapter
  from designate.i18n import _LI
  
  
  LOG = logging.getLogger(__name__)
  
  
  class ZoneExportController(rest.RestController):
  
      @pecan.expose(template=None, content_type='text/dns')
      @utils.validate_uuid('export_id')
      def get_all(self, export_id):
          context = pecan.request.environ['context']
          target = {'tenant_id': context.tenant}
          policy.check('zone_export', context, target)
  
          export = self.central_api.get_zone_export(context, export_id)
  
          if export.location and export.location.startswith('designate://'):
              return self.central_api.\
                  export_zone(context, export['zone_id'])
          else:
              msg = 'Zone can not be exported synchronously'
              raise exceptions.BadRequest(msg)
  
  
  class ZoneExportCreateController(rest.RestController):
  
      @pecan.expose(template='json:', content_type='application/json')
      @utils.validate_uuid('zone_id')
      def post_all(self, zone_id):
          """Create Zone Export"""
          request = pecan.request
          response = pecan.response
          context = request.environ['context']
  
          # Create the zone_export
          zone_export = self.central_api.create_zone_export(
              context, zone_id)
          response.status_int = 202
  
          LOG.info(_LI("Created %(zone_export)s"), {'zone_export': zone_export})
  
          zone_export = DesignateAdapter.render(
              'API_v2', zone_export, request=request)
  
          response.headers['Location'] = zone_export['links']['self']
          return zone_export
  
  
  class ZoneExportsController(rest.RestController):
  
      SORT_KEYS = ['created_at', 'id', 'updated_at']
  
      export = ZoneExportController()
  
      @pecan.expose(template='json:', content_type='application/json')
      @utils.validate_uuid('export_id')
      def get_one(self, export_id):
          """Get Zone Exports"""
  
          request = pecan.request
          context = request.environ['context']
  
          zone_export = self.central_api.get_zone_export(context, export_id)
  
          LOG.info(_LI("Retrieved %(export)s"), {'export': zone_export})
  
          return DesignateAdapter.render(
              'API_v2',
              zone_export,
              request=request)
  
      @pecan.expose(template='json:', content_type='application/json')
      def get_all(self, **params):
          """List Zone Exports"""
          request = pecan.request
          context = request.environ['context']
          marker, limit, sort_key, sort_dir = utils.get_paging_params(
                  context, params, self.SORT_KEYS)
  
          # Extract any filter params.
          accepted_filters = ('status', 'message', 'zone_id', )
  
          criterion = self._apply_filter_params(
              params, accepted_filters, {})
  
          zone_exports = self.central_api.find_zone_exports(
              context, criterion, marker, limit, sort_key, sort_dir)
  
          LOG.info(_LI("Retrieved %(exports)s"),
                   {'exports': zone_exports})
  
          return DesignateAdapter.render(
              'API_v2',
              zone_exports,
              request=request)
  
      # NOTE: template=None is important here, template='json:' manifests
      #       in this bug: https://bugs.launchpad.net/designate/+bug/1592153
      @pecan.expose(template=None, content_type='application/json')
      @utils.validate_uuid('zone_export_id')
      def delete_one(self, zone_export_id):
          """Delete Zone Export"""
          request = pecan.request
          response = pecan.response
          context = request.environ['context']
  
          zone_export = self.central_api.delete_zone_export(
              context, zone_export_id)
  
          LOG.info(_LI("Deleted %(zone_export)s"), {'zone_export': zone_export})
  
          response.status_int = 204
  
          return ''
  