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 import pkg_resources
  10 import yaml
  11 import logging
  12 import os
  13
  14 import yardstick.common.utils as utils
  15
  16 LOG = logging.getLogger(__name__)
  17
  18 attacker_conf_path = pkg_resources.resource_filename(
  19     "yardstick.benchmark.scenarios.availability",
  20     "attacker_conf.yaml")
  21
  22
  23 class AttackerMgr(object):
  24
  25     def __init__(self):
  26         self._attacker_list = []
  27
  28     def init_attackers(self, attacker_cfgs, context):
  29         LOG.debug("attackerMgr confg: %s", attacker_cfgs)
  30
  31         for cfg in attacker_cfgs:
  32             attacker_cls = BaseAttacker.get_attacker_cls(cfg)
  33             attacker_ins = attacker_cls(cfg, context)
  34             attacker_ins.key = cfg['key']
  35             attacker_ins.setup()
  36             self._attacker_list.append(attacker_ins)
  37
  38     def __getitem__(self, item):
  39         for obj in self._attacker_list:
  40             if(obj.key == item):
  41                 return obj
  42
  43     def recover(self):
  44         for _instance in self._attacker_list:
  45             _instance.recover()
  46
  47
  48 class BaseAttacker(object):
  49
  50     attacker_cfgs = {}
  51
  52     def __init__(self, config, context):
  53         if not BaseAttacker.attacker_cfgs:
  54             with open(attacker_conf_path) as stream:
  55                 BaseAttacker.attacker_cfgs = yaml.load(stream)
  56
  57         self._config = config
  58         self._context = context
  59         self.setup_done = False
  60
  61     @staticmethod
  62     def get_attacker_cls(attacker_cfg):
  63         '''return attacker instance of specified type'''
  64         attacker_type = attacker_cfg['fault_type']
  65         for attacker_cls in utils.itersubclasses(BaseAttacker):
  66             if attacker_type == attacker_cls.__attacker_type__:
  67                 return attacker_cls
  68         raise RuntimeError("No such runner_type %s" % attacker_type)
  69
  70     def get_script_fullpath(self, path):
  71         base_path = os.path.dirname(attacker_conf_path)
  72         return os.path.join(base_path, path)
  73
  74     def recover(self):
  75         pass