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 logging
  12 import os
  13
  14 import yardstick.common.utils as utils
  15 from yardstick.common.yaml_loader import yaml_load
  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         self.data = {}
  29
  30     def init_attackers(self, attacker_cfgs, context):
  31         LOG.debug("attackerMgr confg: %s", attacker_cfgs)
  32
  33         for cfg in attacker_cfgs:
  34             attacker_cls = BaseAttacker.get_attacker_cls(cfg)
  35             attacker_ins = attacker_cls(cfg, context)
  36             attacker_ins.key = cfg['key']
  37             attacker_ins.setup()
  38             self._attacker_list.append(attacker_ins)
  39             self.data = dict(self.data.items() + attacker_ins.data.items())
  40         return self.data
  41
  42     def __getitem__(self, item):
  43         for obj in self._attacker_list:
  44             if(obj.key == item):
  45                 return obj
  46
  47     def recover(self):
  48         for _instance in self._attacker_list:
  49             _instance.recover()
  50
  51
  52 class BaseAttacker(object):
  53
  54     attacker_cfgs = {}
  55
  56     def __init__(self, config, context):
  57         if not BaseAttacker.attacker_cfgs:
  58             with open(attacker_conf_path) as stream:
  59                 BaseAttacker.attacker_cfgs = yaml_load(stream)
  60
  61         self._config = config
  62         self._context = context
  63         self.data = {}
  64         self.setup_done = False
  65         self.intermediate_variables = {}
  66         self.mandatory = False
  67
  68     @staticmethod
  69     def get_attacker_cls(attacker_cfg):
  70         """return attacker instance of specified type"""
  71         attacker_type = attacker_cfg['fault_type']
  72         for attacker_cls in utils.itersubclasses(BaseAttacker):
  73             if attacker_type == attacker_cls.__attacker_type__:
  74                 return attacker_cls
  75         raise RuntimeError("No such runner_type: %s" % attacker_type)
  76
  77     def get_script_fullpath(self, path):
  78         base_path = os.path.dirname(attacker_conf_path)
  79         return os.path.join(base_path, path)
  80
  81     def recover(self):
  82         pass