def dispatch_by_operation(entity_type, entity, operation):
 try:
  index = index_for(entity_type)
  if (operation == model.domain_object.DomainObjectOperation.new):
   index.insert_dict(entity)
  elif (operation == model.domain_object.DomainObjectOperation.changed):
   index.update_dict(entity)
  elif (operation == model.domain_object.DomainObjectOperation.deleted):
   index.remove_dict(entity)
  else:
   log.warn(('Unknown operation: %s' % operation))
 except Exception as ex:
  log.exception(ex)
  raise

def dispatch_by_operation ( entity_type , entity , operation ) : try : index = index_for ( entity_type ) if ( operation == model . domain_object . DomainObjectOperation . new ) : index . insert_dict ( entity ) elif ( operation == model . domain_object . DomainObjectOperation . changed ) : index . update_dict ( entity ) elif ( operation == model . domain_object . DomainObjectOperation . deleted ) : index . remove_dict ( entity ) else : log . warn ( ( 'Unknown operation: %s' % operation ) ) except Exception as ex : log . exception ( ex ) raise
call the appropriate index method for a given notification .