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
  29 """
  30 Distributed Cloud Emulator (dcemulator)
  31 Networking and monitoring functions
  32 (c) 2015 by Steven Van Rossem <steven.vanrossem@intec.ugent.be>
  33 """
  34
  35 import logging
  36 from flask_restful import Resource
  37 from flask import request
  38 import json
  39
  40 logging.basicConfig(level=logging.INFO)
  41
  42 net = None
  43
  44
  45
  46 class MonitorInterfaceAction(Resource):
  47     """
  48     Monitor the counters of a VNF interface
  49     :param vnf_name: name of the VNF to be monitored
  50     :param vnf_interface: name of the VNF interface to be monitored
  51     :param metric: tx_bytes, rx_bytes, tx_packets, rx_packets
  52     :return: message string indicating if the monitor action is succesful or not
  53     """
  54     global net
  55
  56     def put(self, vnf_name, vnf_interface, metric):
  57         logging.debug("REST CALL: start monitor VNF interface")
  58         try:
  59             c = net.monitor_agent.setup_metric(vnf_name, vnf_interface, metric)
  60             # return monitor message response
  61             return  str(c), 200
  62         except Exception as ex:
  63             logging.exception("API error.")
  64             return ex.message, 500
  65
  66     def delete(self, vnf_name, vnf_interface, metric):
  67         logging.debug("REST CALL: stop monitor VNF interface")
  68         try:
  69             c = net.monitor_agent.stop_metric(vnf_name, vnf_interface, metric)
  70             # return monitor message response
  71             return str(c), 200
  72         except Exception as ex:
  73             logging.exception("API error.")
  74             return ex.message, 500
  75
  76
  77 class MonitorFlowAction(Resource):
  78     """
  79     Monitor the counters of a specific flow
  80     :param vnf_name: name of the VNF to be monitored
  81     :param vnf_interface: name of the VNF interface to be monitored
  82     :param metric: tx_bytes, rx_bytes, tx_packets, rx_packets
  83     :param cookie: specific identifier of flows to monitor
  84     :return: message string indicating if the monitor action is succesful or not
  85     """
  86     global net
  87
  88     def put(self, vnf_name, vnf_interface, metric, cookie):
  89         logging.debug("REST CALL: start monitor VNF interface")
  90         try:
  91             c = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie)
  92             # return monitor message response
  93             return str(c), 200
  94         except Exception as ex:
  95             logging.exception("API error.")
  96             return ex.message, 500
  97
  98     def delete(self, vnf_name, vnf_interface, metric, cookie):
  99         logging.debug("REST CALL: stop monitor VNF interface")
 100         try:
 101             c = net.monitor_agent.stop_flow(vnf_name, vnf_interface, metric, cookie)
 102             # return monitor message response
 103             return str(c), 200
 104         except Exception as ex:
 105             logging.exception("API error.")
 106             return ex.message, 500