yardstick/benchmark/scenarios/availability/attacker/baseattacker.py

   1 ##############################################################################
   2 # Copyright (c) 2015 Huawei Technologies Co.,Ltd. and others
   3 #
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ##############################################################################
   9 from __future__ import absolute_import
  10 import pkg_resources
  11 import yaml
  12 import logging
  13 import os
  14
  15 import yardstick.common.utils as utils
  16
  17 LOG = logging.getLogger(__name__)
  18
  19 attacker_conf_path = pkg_resources.resource_filename(
  20     "yardstick.benchmark.scenarios.availability",
  21     "attacker_conf.yaml")
  22
  23
  24 class AttackerMgr(object):
  25
  26     def __init__(self):
  27         self._attacker_list = []
  28
  29     def init_attackers(self, attacker_cfgs, context):
  30         LOG.debug("attackerMgr confg: %s", attacker_cfgs)
  31
  32         for cfg in attacker_cfgs:
  33             attacker_cls = BaseAttacker.get_attacker_cls(cfg)
  34             attacker_ins = attacker_cls(cfg, context)
  35             attacker_ins.key = cfg['key']
  36             attacker_ins.setup()
  37             self._attacker_list.append(attacker_ins)
  38
  39     def __getitem__(self, item):
  40         for obj in self._attacker_list:
  41             if(obj.key == item):
  42                 return obj
  43
  44     def recover(self):
  45         for _instance in self._attacker_list:
  46             _instance.recover()
  47
  48
  49 class BaseAttacker(object):
  50
  51     attacker_cfgs = {}
  52
  53     def __init__(self, config, context):
  54         if not BaseAttacker.attacker_cfgs:
  55             with open(attacker_conf_path) as stream:
  56                 BaseAttacker.attacker_cfgs = yaml.load(stream)
  57
  58         self._config = config
  59         self._context = context
  60         self.setup_done = False
  61
  62     @staticmethod
  63     def get_attacker_cls(attacker_cfg):
  64         '''return attacker instance of specified type'''
  65         attacker_type = attacker_cfg['fault_type']
  66         for attacker_cls in utils.itersubclasses(BaseAttacker):
  67             if attacker_type == attacker_cls.__attacker_type__:
  68                 return attacker_cls
  69         raise RuntimeError("No such runner_type %s" % attacker_type)
  70
  71     def get_script_fullpath(self, path):
  72         base_path = os.path.dirname(attacker_conf_path)
  73         return os.path.join(base_path, path)
  74
  75     def recover(self):
  76         pass