text: # Copyright 2016 - Nokia
  #
  # 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 vitrage.common.constants import EventProperties as EventProps
  from vitrage.datasources.nova.host import NOVA_HOST_DATASOURCE
  
  
  class DoctorProperties(object):
      HOST_DOWN = 'compute.host.down'
      HOST_TYPE = NOVA_HOST_DATASOURCE
      UPDATE_TIME = 'update_time'
      CUSTOM_EVENT_UP = 'vitrage.custom.event.up'
      CUSTOM_EVENT_DOWN = 'vitrage.custom.event.down'
  
  
  class DoctorDetails(object):
      """The details appear inside a details section in the event """
      HOSTNAME = 'hostname'
      STATUS = 'status'
      SEVERITY = 'severity'
  
  
  class DoctorStatus(object):
      DOWN = 'down'
      UP = 'up'
  
  
  def get_detail(alarm, detail):
      return alarm[EventProps.DETAILS][detail] if \
          alarm and EventProps.DETAILS in alarm and \
          detail in alarm[EventProps.DETAILS] \
          else None
  