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##############################################################################
# Copyright 2018 EuropeanSoftwareMarketingLtd.
# ===================================================================
# Licensed under the ApacheLicense, Version2.0 (the"License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
#
# software distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and limitations under
# the License
##############################################################################
# vnftest comment: this is a modified copy of
# rally/rally/benchmark/steps/base.py
""" Step base class
"""
from __future__ import absolute_import
import vnftest.common.utils as utils
class Step(object):
def setup(self):
""" default impl for step setup """
pass
def run(self, args):
""" catcher for not implemented run methods in subclasses """
raise RuntimeError("run method not implemented")
def teardown(self):
""" default impl for step teardown """
pass
@staticmethod
def get_types():
"""return a list of known runner type (class) names"""
steps = []
for step in utils.itersubclasses(Step):
steps.append(step)
return steps
@staticmethod
def get_cls(step_type):
"""return class of specified type"""
for step in utils.itersubclasses(Step):
if step_type == step.__step_type__:
return step
raise RuntimeError("No such step type %s" % step_type)
@staticmethod
def get(step_type):
"""Returns instance of a step runner for execution type.
"""
for step in utils.itersubclasses(Step):
if step_type == step.__step_type__:
return step.__module__ + "." + step.__name__
raise RuntimeError("No such step type %s" % step_type)
@classmethod
def get_step_type(cls):
"""Return a string with the step type, if defined"""
return str(getattr(cls, '__step_type__', None))
@classmethod
def get_description(cls):
"""Return a single line string with the class description
This function will retrieve the class docstring and return the first
line, or 'None' if it's empty.
"""
return cls.__doc__.splitlines()[0] if cls.__doc__ else str(None)
def _push_to_outputs(self, keys, values):
return dict(zip(keys, values))
def _change_obj_to_dict(self, obj):
dic = {}
for k, v in vars(obj).items():
try:
vars(v)
except TypeError:
dic[k] = v
return dic
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