aboutsummaryrefslogtreecommitdiffstats
path: root/yardstick/common/utils.py
blob: 68c9ed63f74d1ab30702483afb262a269aca964c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
# Copyright 2013: Mirantis Inc.
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (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
#
#    Unless required by applicable law or agreed to in writing, 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.

# yardstick comment: this is a modified copy of rally/rally/common/utils.py

from __future__ import absolute_import
from __future__ import print_function

import datetime
import errno
import logging
import os
import subprocess
import sys
import collections
import socket
import random
import ipaddress
from contextlib import closing

import six
from flask import jsonify
from six.moves import configparser
from oslo_utils import importutils
from oslo_serialization import jsonutils

import yardstick
from yardstick.common.yaml_loader import yaml_load

logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)


# Decorator for cli-args
def cliargs(*args, **kwargs):
    def _decorator(func):
        func.__dict__.setdefault('arguments', []).insert(0, (args, kwargs))
        return func
    return _decorator


def itersubclasses(cls, _seen=None):
    """Generator over all subclasses of a given class in depth first order."""

    if not isinstance(cls, type):
        raise TypeError("itersubclasses must be called with "
                        "new-style classes, not %.100r" % cls)
    _seen = _seen or set()
    try:
        subs = cls.__subclasses__()
    except TypeError:   # fails only when cls is type
        subs = cls.__subclasses__(cls)
    for sub in subs:
        if sub not in _seen:
            _seen.add(sub)
            yield sub
            for sub in itersubclasses(sub, _seen):
                yield sub


def import_modules_from_package(package):
    """Import modules from package and append into sys.modules

    :param: package - Full package name. For example: rally.deploy.engines
    """
    yardstick_root = os.path.dirname(os.path.dirname(yardstick.__file__))
    path = os.path.join(yardstick_root, *package.split("."))
    for root, dirs, files in os.walk(path):
        matches = (filename for filename in files if filename.endswith(".py") and
                   not filename.startswith("__"))
        new_package = os.path.relpath(root, yardstick_root).replace(os.sep, ".")
        module_names = set(
            ("{}.{}".format(new_package, filename.rsplit(".py", 1)[0]) for filename in matches))
        # find modules which haven't already been imported
        missing_modules = module_names.difference(sys.modules)
        logger.debug("importing %s", missing_modules)
        # we have already checked for already imported modules, so we don't need to check again
        for module_name in missing_modules:
            try:
                sys.modules[module_name] = importutils.import_module(module_name)
            except (ImportError, SyntaxError):
                logger.exception("unable to import %s", module_name)


def parse_yaml(file_path):
    try:
        with open(file_path) as f:
            value = yaml_load(f)
    except IOError:
        return {}
    except OSError as e:
        if e.errno != errno.EEXIST:
            raise
    else:
        return value


def makedirs(d):
    try:
        os.makedirs(d)
    except OSError as e:
        if e.errno != errno.EEXIST:
            raise


def remove_file(path):
    try:
        os.remove(path)
    except OSError as e:
        if e.errno != errno.ENOENT:
            raise


def execute_command(cmd):
    exec_msg = "Executing command: '%s'" % cmd
    logger.debug(exec_msg)

    output = subprocess.check_output(cmd.split()).split(os.linesep)

    return output


def source_env(env_file):
    p = subprocess.Popen(". %s; env" % env_file, stdout=subprocess.PIPE,
                         shell=True)
    output = p.communicate()[0]
    env = dict(line.split('=', 1) for line in output.splitlines() if '=' in line)
    os.environ.update(env)
    return env


def read_json_from_file(path):
    with open(path, 'r') as f:
        j = f.read()
    # don't use jsonutils.load() it conflicts with already decoded input
    return jsonutils.loads(j)


def write_json_to_file(path, data, mode='w'):
    with open(path, mode) as f:
        jsonutils.dump(data, f)


def write_file(path, data, mode='w'):
    with open(path, mode) as f:
        f.write(data)


def parse_ini_file(path):
    parser = configparser.ConfigParser()

    try:
        files = parser.read(path)
    except configparser.MissingSectionHeaderError:
        logger.exception('invalid file type')
        raise
    else:
        if not files:
            raise RuntimeError('file not exist')

    try:
        default = {k: v for k, v in parser.items('DEFAULT')}
    except configparser.NoSectionError:
        default = {}

    config = dict(DEFAULT=default,
                  **{s: {k: v for k, v in parser.items(
                      s)} for s in parser.sections()})

    return config


def get_port_mac(sshclient, port):
    cmd = "ifconfig |grep HWaddr |grep %s |awk '{print $5}' " % port
    status, stdout, stderr = sshclient.execute(cmd)

    if status:
        raise RuntimeError(stderr)
    return stdout.rstrip()


def get_port_ip(sshclient, port):
    cmd = "ifconfig %s |grep 'inet addr' |awk '{print $2}' " \
        "|cut -d ':' -f2 " % port
    status, stdout, stderr = sshclient.execute(cmd)

    if status:
        raise RuntimeError(stderr)
    return stdout.rstrip()


def flatten_dict_key(data):
    next_data = {}

    # use list, because iterable is too generic
    if not any(isinstance(v, (collections.Mapping, list))
               for v in data.values()):
        return data

    for k, v in data.items():
        if isinstance(v, collections.Mapping):
            for n_k, n_v in v.items():
                next_data["%s.%s" % (k, n_k)] = n_v
        # use list because iterable is too generic
        elif isinstance(v, collections.Iterable) and not isinstance(v, six.string_types):
            for index, item in enumerate(v):
                next_data["%s%d" % (k, index)] = item
        else:
            next_data[k] = v

    return flatten_dict_key(next_data)


def translate_to_str(obj):
    if isinstance(obj, collections.Mapping):
        return {str(k): translate_to_str(v) for k, v in obj.items()}
    elif isinstance(obj, list):
        return [translate_to_str(ele) for ele in obj]
    elif isinstance(obj, six.text_type):
        return str(obj)
    return obj


def result_handler(status, data):
    result = {
        'status': status,
        'result': data
    }
    return jsonify(result)


def change_obj_to_dict(obj):
    dic = {}
    for k, v in vars(obj).items():
        try:
            vars(v)
        except TypeError:
            dic.update({k: v})
    return dic


def set_dict_value(dic, keys, value):
    return_dic = dic

    for key in keys.split('.'):
        return_dic.setdefault(key, {})
        if key == keys.split('.')[-1]:
            return_dic[key] = value
        else:
            return_dic = return_dic[key]
    return dic


def get_free_port(ip):
    with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
        while True:
            port = random.randint(5000, 10000)
            if s.connect_ex((ip, port)) != 0:
                return port


def mac_address_to_hex_list(mac):
    octets = ["0x{:02x}".format(int(elem, 16)) for elem in mac.split(':')]
    assert len(octets) == 6 and all(len(octet) == 4 for octet in octets)
    return octets


def safe_ip_address(ip_addr):
    """ get ip address version v6 or v4 """
    try:
        return ipaddress.ip_address(six.text_type(ip_addr))
    except ValueError:
        logging.error("%s is not valid", ip_addr)
        return None


def get_ip_version(ip_addr):
    """ get ip address version v6 or v4 """
    try:
        address = ipaddress.ip_address(six.text_type(ip_addr))
    except ValueError:
        logging.error("%s is not valid", ip_addr)
        return None
    else:
        return address.version


def ip_to_hex(ip_addr, separator=''):
    try:
        address = ipaddress.ip_address(six.text_type(ip_addr))
    except ValueError:
        logging.error("%s is not valid", ip_addr)
        return ip_addr

    if address.version != 4:
        return ip_addr

    if not separator:
        return '{:08x}'.format(int(address))

    return separator.join('{:02x}'.format(octet) for octet in address.packed)


def try_int(s, *args):
    """Convert to integer if possible."""
    try:
        return int(s)
    except (TypeError, ValueError):
        return args[0] if args else s


class SocketTopology(dict):

    @classmethod
    def parse_cpuinfo(cls, cpuinfo):
        socket_map = {}

        lines = cpuinfo.splitlines()

        core_details = []
        core_lines = {}
        for line in lines:
            if line.strip():
                name, value = line.split(":", 1)
                core_lines[name.strip()] = try_int(value.strip())
            else:
                core_details.append(core_lines)
                core_lines = {}

        for core in core_details:
            socket_map.setdefault(core["physical id"], {}).setdefault(
                core["core id"], {})[core["processor"]] = (
                core["processor"], core["core id"], core["physical id"])

        return cls(socket_map)

    def sockets(self):
        return sorted(self.keys())

    def cores(self):
        return sorted(core for cores in self.values() for core in cores)

    def processors(self):
        return sorted(
            proc for cores in self.values() for procs in cores.values() for
            proc in procs)


def config_to_dict(config):
    return {section: dict(config.items(section)) for section in
            config.sections()}


def validate_non_string_sequence(value, default=None, raise_exc=None):
    if isinstance(value, collections.Sequence) and not isinstance(value, str):
        return value
    if raise_exc:
        raise raise_exc
    return default


def join_non_strings(separator, *non_strings):
    try:
        non_strings = validate_non_string_sequence(non_strings[0], raise_exc=RuntimeError)
    except (IndexError, RuntimeError):
        pass
    return str(separator).join(str(non_string) for non_string in non_strings)


class ErrorClass(object):

    def __init__(self, *args, **kwargs):
        if 'test' not in kwargs:
            raise RuntimeError

    def __getattr__(self, item):
        raise AttributeError


class Timer(object):
    def __init__(self):
        super(Timer, self).__init__()
        self.start = self.delta = None

    def __enter__(self):
        self.start = datetime.datetime.now()
        return self

    def __exit__(self, *_):
        self.delta = datetime.datetime.now() - self.start

    def __getattr__(self, item):
        return getattr(self.delta, item)