1 # Copyright 2013: Mirantis Inc.
4 # Licensed under the Apache License, Version 2.0 (the "License"); you may
5 # not use this file except in compliance with the License. You may obtain
6 # a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 # License for the specific language governing permissions and limitations
16 # yardstick comment: this is a modified copy of rally/rally/common/utils.py
18 from __future__ import absolute_import
19 from __future__ import print_function
26 from functools import reduce
29 from keystoneauth1 import identity
30 from keystoneauth1 import session
31 from neutronclient.v2_0 import client
32 from oslo_utils import importutils
33 from oslo_serialization import jsonutils
37 logger = logging.getLogger(__name__)
38 logger.setLevel(logging.DEBUG)
41 # Decorator for cli-args
42 def cliargs(*args, **kwargs):
44 func.__dict__.setdefault('arguments', []).insert(0, (args, kwargs))
49 def itersubclasses(cls, _seen=None):
50 """Generator over all subclasses of a given class in depth first order."""
52 if not isinstance(cls, type):
53 raise TypeError("itersubclasses must be called with "
54 "new-style classes, not %.100r" % cls)
55 _seen = _seen or set()
57 subs = cls.__subclasses__()
58 except TypeError: # fails only when cls is type
59 subs = cls.__subclasses__(cls)
64 for sub in itersubclasses(sub, _seen):
68 def try_append_module(name, modules):
69 if name not in modules:
70 modules[name] = importutils.import_module(name)
73 def import_modules_from_package(package):
74 """Import modules from package and append into sys.modules
76 :param: package - Full package name. For example: rally.deploy.engines
78 path = [os.path.dirname(yardstick.__file__), ".."] + package.split(".")
79 path = os.path.join(*path)
80 for root, dirs, files in os.walk(path):
81 for filename in files:
82 if filename.startswith("__") or not filename.endswith(".py"):
84 new_package = ".".join(root.split(os.sep)).split("....")[1]
85 module_name = "%s.%s" % (new_package, filename[:-3])
86 try_append_module(module_name, sys.modules)
89 def get_para_from_yaml(file_path, args):
96 if os.path.exists(file_path):
97 with open(file_path) as f:
98 value = yaml.safe_load(f)
99 value = reduce(func, args.split('.'), value)
102 print('parameter not found')
107 print('file not exist')
115 if e.errno != errno.EEXIST:
119 def execute_command(cmd):
120 exec_msg = "Executing command: '%s'" % cmd
121 logger.debug(exec_msg)
123 output = subprocess.check_output(cmd.split()).split(os.linesep)
128 def source_env(env_file):
129 p = subprocess.Popen(". %s; env" % env_file, stdout=subprocess.PIPE,
131 output = p.communicate()[0]
132 env = dict((line.split('=', 1) for line in output.splitlines()))
133 os.environ.update(env)
137 def get_openstack_session():
138 auth = identity.Password(auth_url=os.environ.get('OS_AUTH_URL'),
139 username=os.environ.get('OS_USERNAME'),
140 password=os.environ.get('OS_PASSWORD'),
141 tenant_name=os.environ.get('OS_TENANT_NAME'))
142 return session.Session(auth=auth)
145 def get_neutron_client():
146 sess = get_openstack_session()
147 neutron_client = client.Client(session=sess)
148 return neutron_client
151 def read_json_from_file(path):
152 with open(path, 'r') as f:
153 return jsonutils.load(f)
156 def write_json_to_file(path, data, mode='w'):
157 with open(path, mode) as f:
158 jsonutils.dump(data, f)
161 def write_file(path, data, mode='w'):
162 with open(path, mode) as f: