786520d13c
pyeclib needs to be installed in order to run unit tests which shouldn't be the case. We should rely on in-source modules. This addresses issue#56. Signed-off-by: Tushar Gohad <tushar.gohad@intel.com>
76 lines
3.0 KiB
Python
76 lines
3.0 KiB
Python
# Copyright (c) 2013, 2014, Kevin Greenan (kmgreen2@gmail.com)
|
|
# Copyright (c) 2014, Tushar Gohad (tusharsg@gmail.com)
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are met:
|
|
#
|
|
# Redistributions of source code must retain the above copyright notice, this
|
|
# list of conditions and the following disclaimer.
|
|
#
|
|
# Redistributions in binary form must reproduce the above copyright notice,
|
|
# this list of conditions and the following disclaimer in the documentation
|
|
# and/or other materials provided with the distribution. THIS SOFTWARE IS
|
|
# PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
|
|
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
|
|
# NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
import sys
|
|
import traceback
|
|
|
|
|
|
def positive_int_value(param):
|
|
# Returns value as a positive int or raises ValueError otherwise
|
|
try:
|
|
value = int(param)
|
|
assert value > 0
|
|
except (TypeError, ValueError, AssertionError):
|
|
# Handle: TypeError for 'None', ValueError for non-int strings
|
|
# and AssertionError for values <= 0
|
|
raise ValueError('Must be an integer > 0, not "%s".' % param)
|
|
return value
|
|
|
|
|
|
def import_class(import_str):
|
|
"""
|
|
Returns a class from a string that specifies a module and/or class
|
|
|
|
:param import_str: import path, e.g. 'httplib.HTTPConnection'
|
|
:returns imported object
|
|
:raises: ImportedError if the class does not exist or the path is invalid
|
|
"""
|
|
(mod_str, separator, class_str) = import_str.rpartition('.')
|
|
try:
|
|
__import__(mod_str)
|
|
return getattr(sys.modules[mod_str], class_str)
|
|
except (ValueError, AttributeError) as e:
|
|
raise ImportError('Class %s cannot be found (%)' %
|
|
(class_str,
|
|
traceback.format_exception(*sys.exc_info())))
|
|
|
|
|
|
def create_instance(import_str, *args, **kwargs):
|
|
"""
|
|
Returns instance of class which imported by import path.
|
|
|
|
:param import_str: import path of class
|
|
:param \*args: indexed arguments for new instance
|
|
:param \*\*kwargs: keyword arguments for new instance
|
|
:returns: instance of imported class which instantiated with
|
|
arguments *args and **kwargs
|
|
"""
|
|
try:
|
|
object_class = import_class(import_str)
|
|
except Exception as e:
|
|
raise
|
|
instance = object_class(*args, **kwargs)
|
|
|
|
return instance
|