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  # Copyright 2012 Nebula, Inc.
  #
  #    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.
  
  """
  Admin views for managing volumes.
  """
  
  from django.core.urlresolvers import reverse
  from django.utils.datastructures import SortedDict
  from django.utils.translation import ugettext_lazy as _
  
  from horizon import exceptions
  from horizon import forms
  from horizon import tables
  
  from openstack_dashboard.api import cinder
  from openstack_dashboard.api import keystone
  
  from openstack_dashboard.dashboards.admin.volumes \
      import forms as project_forms
  from openstack_dashboard.dashboards.admin.volumes \
      import tables as project_tables
  
  from openstack_dashboard.dashboards.project.volumes \
      import tabs as project_tabs
  from openstack_dashboard.dashboards.project.volumes \
      .volumes import views as volume_views
  
  
  class IndexView(tables.MultiTableView, project_tabs.VolumeTableMixIn):
      table_classes = (project_tables.VolumesTable,
                       project_tables.VolumeTypesTable)
      template_name = "admin/volumes/index.html"
  
      def get_volumes_data(self):
          volumes = self._get_volumes(search_opts={'all_tenants': True})
          instances = self._get_instances(search_opts={'all_tenants': True})
          self._set_attachments_string(volumes, instances)
  
          # Gather our tenants to correlate against IDs
          try:
              tenants, has_more = keystone.tenant_list(self.request)
          except Exception:
              tenants = []
              msg = _('Unable to retrieve volume project information.')
              exceptions.handle(self.request, msg)
  
          tenant_dict = SortedDict([(t.id, t) for t in tenants])
          for volume in volumes:
              tenant_id = getattr(volume, "os-vol-tenant-attr:tenant_id", None)
              tenant = tenant_dict.get(tenant_id, None)
              volume.tenant_name = getattr(tenant, "name", None)
  
          return volumes
  
      def get_volume_types_data(self):
          try:
              volume_types = cinder.volume_type_list(self.request)
          except Exception:
              volume_types = []
              exceptions.handle(self.request,
                                _("Unable to retrieve volume types"))
          return volume_types
  
  
  class DetailView(volume_views.DetailView):
      template_name = "admin/volumes/detail.html"
  
  
  class CreateVolumeTypeView(forms.ModalFormView):
      form_class = project_forms.CreateVolumeType
      template_name = 'admin/volumes/create_volume_type.html'
      success_url = 'horizon:admin:volumes:index'
  
      def get_success_url(self):
          return reverse(self.success_url)
  