src/emuvim/api/rest/monitor.py

   1 """
   2 Copyright (c) 2015 SONATA-NFV and Paderborn University
   3 ALL RIGHTS RESERVED.
   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 Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
  18 nor the names of its contributors may be used to endorse or promote
  19 products derived from this software without specific prior written
  20 permission.
  21
  22 This work has been performed in the framework of the SONATA project,
  23 funded by the European Commission under Grant number 671517 through
  24 the Horizon 2020 and 5G-PPP programmes. The authors would like to
  25 acknowledge the contributions of their colleagues of the SONATA
  26 partner consortium (www.sonata-nfv.eu).
  27 """
  28 import logging
  29 from flask_restful import Resource
  30 from flask import request
  31 import json
  32
  33 logging.basicConfig(level=logging.INFO)
  34
  35 net = None
  36
  37
  38
  39 class MonitorInterfaceAction(Resource):
  40     """
  41     Monitor the counters of a VNF interface
  42     :param vnf_name: name of the VNF to be monitored
  43     :param vnf_interface: name of the VNF interface to be monitored
  44     :param metric: tx_bytes, rx_bytes, tx_packets, rx_packets
  45     :return: message string indicating if the monitor action is succesful or not
  46     """
  47     global net
  48
  49     def put(self, vnf_name, vnf_interface, metric):
  50         logging.debug("REST CALL: start monitor VNF interface")
  51         try:
  52             c = net.monitor_agent.setup_metric(vnf_name, vnf_interface, metric)
  53             # return monitor message response
  54             return  str(c), 200
  55         except Exception as ex:
  56             logging.exception("API error.")
  57             return ex.message, 500
  58
  59     def delete(self, vnf_name, vnf_interface, metric):
  60         logging.debug("REST CALL: stop monitor VNF interface")
  61         try:
  62             c = net.monitor_agent.stop_metric(vnf_name, vnf_interface, metric)
  63             # return monitor message response
  64             return str(c), 200
  65         except Exception as ex:
  66             logging.exception("API error.")
  67             return ex.message, 500
  68
  69
  70 class MonitorFlowAction(Resource):
  71     """
  72     Monitor the counters of a specific flow
  73     :param vnf_name: name of the VNF to be monitored
  74     :param vnf_interface: name of the VNF interface to be monitored
  75     :param metric: tx_bytes, rx_bytes, tx_packets, rx_packets
  76     :param cookie: specific identifier of flows to monitor
  77     :return: message string indicating if the monitor action is succesful or not
  78     """
  79     global net
  80
  81     def put(self, vnf_name, vnf_interface, metric, cookie):
  82         logging.debug("REST CALL: start monitor VNF interface")
  83         try:
  84             c = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie)
  85             # return monitor message response
  86             return str(c), 200
  87         except Exception as ex:
  88             logging.exception("API error.")
  89             return ex.message, 500
  90
  91     def delete(self, vnf_name, vnf_interface, metric, cookie):
  92         logging.debug("REST CALL: stop monitor VNF interface")
  93         try:
  94             c = net.monitor_agent.stop_flow(vnf_name, vnf_interface, metric, cookie)
  95             # return monitor message response
  96             return str(c), 200
  97         except Exception as ex:
  98             logging.exception("API error.")
  99             return ex.message, 500