text: # 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 django.utils.translation import gettext_lazy as _
  
  from horizon import exceptions
  from horizon import tabs
  
  from openstack_dashboard.api import nova
  from openstack_dashboard.dashboards.admin.hypervisors.compute import tables
  
  
  class ComputeHostTab(tabs.TableTab):
      table_classes = (tables.ComputeHostTable,)
      name = _("Compute Host")
      slug = "compute_host"
      template_name = "horizon/common/_detail_table.html"
  
      def get_compute_host_data(self):
          try:
              return nova.service_list(self.tab_group.request,
                                       binary='nova-compute')
          except Exception:
              msg = _('Unable to get nova services list.')
              exceptions.handle(self.tab_group.request, msg)
              return []
  