rwlaunchpad/plugins/rwautoscaler/rift/tasklets/rwautoscaler/subscribers.py

   1
   2 #
   3 #   Copyright 2016 RIFT.IO Inc
   4 #
   5 #   Licensed under the Apache License, Version 2.0 (the "License");
   6 #   you may not use this file except in compliance with the License.
   7 #   You may obtain a copy of the License at
   8 #
   9 #       http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 #   Unless required by applicable law or agreed to in writing, software
  12 #   distributed under the License is distributed on an "AS IS" BASIS,
  13 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 #   See the License for the specific language governing permissions and
  15 #   limitations under the License.
  16 #
  17
  18 import rift.mano.dts as mano_dts
  19
  20
  21 class NsrMonParamSubscriber(mano_dts.AbstractOpdataSubscriber):
  22     """Registers for NSR monitoring parameter changes.
  23
  24     Attributes:
  25         monp_id (str): Monitoring Param ID
  26         nsr_id (str): NSR ID
  27     """
  28     def __init__(self, log, dts, loop, nsr_id, monp_id=None, callback=None):
  29         super().__init__(log, dts, loop, callback)
  30         self.nsr_id = nsr_id
  31         self.monp_id = monp_id
  32
  33     def get_xpath(self):
  34         return ("D,/nsr:ns-instance-opdata/nsr:nsr" +
  35             "[nsr:ns-instance-config-ref='{}']".format(self.nsr_id) +
  36             "/nsr:monitoring-param" +
  37             ("[nsr:id='{}']".format(self.monp_id) if self.monp_id else ""))
  38
  39
  40