Ensure that nova client prints dictionaries and arrays correctly
Print the dictionaries and arrays without the unicode tags. The patch also updated tests that did not return valid data. Change-Id: Ia787f98a9510b68beb3ceaf00c285ca5c934f5c0 Closes-bug: #1265002
This commit is contained in:
Gary Kotton
parent
708af32f03
commit
5c62630a9d
66
novaclient/openstack/common/importutils.py
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66
novaclient/openstack/common/importutils.py
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@ -0,0 +1,66 @@
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# Copyright 2011 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Import related utilities and helper functions.
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"""
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import sys
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import traceback
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def import_class(import_str):
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"""Returns a class from a string including module and class."""
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mod_str, _sep, class_str = import_str.rpartition('.')
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try:
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__import__(mod_str)
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return getattr(sys.modules[mod_str], class_str)
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except (ValueError, AttributeError):
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raise ImportError('Class %s cannot be found (%s)' %
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(class_str,
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traceback.format_exception(*sys.exc_info())))
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def import_object(import_str, *args, **kwargs):
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"""Import a class and return an instance of it."""
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return import_class(import_str)(*args, **kwargs)
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def import_object_ns(name_space, import_str, *args, **kwargs):
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"""Tries to import object from default namespace.
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Imports a class and return an instance of it, first by trying
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to find the class in a default namespace, then failing back to
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a full path if not found in the default namespace.
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"""
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import_value = "%s.%s" % (name_space, import_str)
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try:
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return import_class(import_value)(*args, **kwargs)
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except ImportError:
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return import_class(import_str)(*args, **kwargs)
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def import_module(import_str):
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"""Import a module."""
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__import__(import_str)
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return sys.modules[import_str]
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def try_import(import_str, default=None):
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"""Try to import a module and if it fails return default."""
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try:
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return import_module(import_str)
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except ImportError:
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return default
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182
novaclient/openstack/common/jsonutils.py
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182
novaclient/openstack/common/jsonutils.py
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@ -0,0 +1,182 @@
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# Copyright 2011 Justin Santa Barbara
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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'''
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JSON related utilities.
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This module provides a few things:
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1) A handy function for getting an object down to something that can be
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JSON serialized. See to_primitive().
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2) Wrappers around loads() and dumps(). The dumps() wrapper will
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automatically use to_primitive() for you if needed.
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3) This sets up anyjson to use the loads() and dumps() wrappers if anyjson
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is available.
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'''
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import datetime
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import functools
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import inspect
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import itertools
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import json
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try:
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import xmlrpclib
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except ImportError:
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# NOTE(jaypipes): xmlrpclib was renamed to xmlrpc.client in Python3
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# however the function and object call signatures
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# remained the same. This whole try/except block should
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# be removed and replaced with a call to six.moves once
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# six 1.4.2 is released. See http://bit.ly/1bqrVzu
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import xmlrpc.client as xmlrpclib
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import six
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from novaclient.openstack.common import gettextutils
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from novaclient.openstack.common import importutils
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from novaclient.openstack.common import timeutils
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netaddr = importutils.try_import("netaddr")
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_nasty_type_tests = [inspect.ismodule, inspect.isclass, inspect.ismethod,
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inspect.isfunction, inspect.isgeneratorfunction,
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inspect.isgenerator, inspect.istraceback, inspect.isframe,
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inspect.iscode, inspect.isbuiltin, inspect.isroutine,
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inspect.isabstract]
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_simple_types = (six.string_types + six.integer_types
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+ (type(None), bool, float))
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def to_primitive(value, convert_instances=False, convert_datetime=True,
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level=0, max_depth=3):
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"""Convert a complex object into primitives.
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Handy for JSON serialization. We can optionally handle instances,
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but since this is a recursive function, we could have cyclical
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data structures.
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To handle cyclical data structures we could track the actual objects
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visited in a set, but not all objects are hashable. Instead we just
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track the depth of the object inspections and don't go too deep.
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Therefore, convert_instances=True is lossy ... be aware.
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"""
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# handle obvious types first - order of basic types determined by running
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# full tests on nova project, resulting in the following counts:
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# 572754 <type 'NoneType'>
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# 460353 <type 'int'>
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# 379632 <type 'unicode'>
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# 274610 <type 'str'>
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# 199918 <type 'dict'>
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# 114200 <type 'datetime.datetime'>
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# 51817 <type 'bool'>
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# 26164 <type 'list'>
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# 6491 <type 'float'>
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# 283 <type 'tuple'>
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# 19 <type 'long'>
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if isinstance(value, _simple_types):
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return value
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if isinstance(value, datetime.datetime):
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if convert_datetime:
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return timeutils.strtime(value)
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else:
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return value
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# value of itertools.count doesn't get caught by nasty_type_tests
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# and results in infinite loop when list(value) is called.
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if type(value) == itertools.count:
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return six.text_type(value)
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# FIXME(vish): Workaround for LP bug 852095. Without this workaround,
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# tests that raise an exception in a mocked method that
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# has a @wrap_exception with a notifier will fail. If
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# we up the dependency to 0.5.4 (when it is released) we
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# can remove this workaround.
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if getattr(value, '__module__', None) == 'mox':
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return 'mock'
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if level > max_depth:
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return '?'
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# The try block may not be necessary after the class check above,
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# but just in case ...
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try:
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recursive = functools.partial(to_primitive,
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convert_instances=convert_instances,
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convert_datetime=convert_datetime,
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level=level,
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max_depth=max_depth)
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if isinstance(value, dict):
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return dict((k, recursive(v)) for k, v in six.iteritems(value))
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elif isinstance(value, (list, tuple)):
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return [recursive(lv) for lv in value]
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# It's not clear why xmlrpclib created their own DateTime type, but
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# for our purposes, make it a datetime type which is explicitly
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# handled
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if isinstance(value, xmlrpclib.DateTime):
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value = datetime.datetime(*tuple(value.timetuple())[:6])
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if convert_datetime and isinstance(value, datetime.datetime):
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return timeutils.strtime(value)
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elif isinstance(value, gettextutils.Message):
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return value.data
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elif hasattr(value, 'iteritems'):
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return recursive(dict(value.iteritems()), level=level + 1)
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elif hasattr(value, '__iter__'):
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return recursive(list(value))
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elif convert_instances and hasattr(value, '__dict__'):
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# Likely an instance of something. Watch for cycles.
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# Ignore class member vars.
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return recursive(value.__dict__, level=level + 1)
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elif netaddr and isinstance(value, netaddr.IPAddress):
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return six.text_type(value)
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else:
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if any(test(value) for test in _nasty_type_tests):
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return six.text_type(value)
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return value
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except TypeError:
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# Class objects are tricky since they may define something like
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# __iter__ defined but it isn't callable as list().
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return six.text_type(value)
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def dumps(value, default=to_primitive, **kwargs):
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return json.dumps(value, default=default, **kwargs)
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def loads(s):
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return json.loads(s)
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def load(s):
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return json.load(s)
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try:
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import anyjson
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except ImportError:
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pass
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else:
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anyjson._modules.append((__name__, 'dumps', TypeError,
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'loads', ValueError, 'load'))
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anyjson.force_implementation(__name__)
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@ -177,6 +177,39 @@ class PrintResultTestCase(test_utils.TestCase):
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'| k2 | 2 |\n'
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'+------+-------+\n')
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@mock.patch('sys.stdout', six.StringIO())
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def test_print_dict_dictionary(self):
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dict = {'k': {'foo': 'bar'}}
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utils.print_dict(dict)
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self.assertEqual(sys.stdout.getvalue(),
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'+----------+----------------+\n'
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'| Property | Value |\n'
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'+----------+----------------+\n'
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'| k | {"foo": "bar"} |\n'
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'+----------+----------------+\n')
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@mock.patch('sys.stdout', six.StringIO())
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def test_print_dict_list_dictionary(self):
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dict = {'k': [{'foo': 'bar'}]}
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utils.print_dict(dict)
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self.assertEqual(sys.stdout.getvalue(),
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'+----------+------------------+\n'
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'| Property | Value |\n'
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'+----------+------------------+\n'
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'| k | [{"foo": "bar"}] |\n'
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'+----------+------------------+\n')
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@mock.patch('sys.stdout', six.StringIO())
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def test_print_dict_list(self):
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dict = {'k': ['foo', 'bar']}
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utils.print_dict(dict)
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self.assertEqual(sys.stdout.getvalue(),
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'+----------+----------------+\n'
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'| Property | Value |\n'
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'+----------+----------------+\n'
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'| k | ["foo", "bar"] |\n'
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'+----------+----------------+\n')
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class FlattenTestCase(test_utils.TestCase):
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def test_flattening(self):
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@ -1944,7 +1944,7 @@ class FakeHTTPClient(base_client.HTTPClient):
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'username': 'cell1_user',
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'name': 'cell1',
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'rpc_host': '10.0.1.10',
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'_info': {
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'info': {
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'username': 'cell1_user',
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'rpc_host': '10.0.1.10',
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'type': 'child',
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@ -1953,7 +1953,7 @@ class FakeHTTPClient(base_client.HTTPClient):
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},
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'type': 'child',
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'rpc_port': 5673,
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'_loaded': True
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'loaded': True
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}}
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return (200, {}, cell)
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@ -23,6 +23,7 @@ import prettytable
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import six
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from novaclient import exceptions
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from novaclient.openstack.common import jsonutils
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from novaclient.openstack.common import strutils
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@ -237,8 +238,8 @@ def print_dict(d, dict_property="Property", dict_value="Value", wrap=0):
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pt.align = 'l'
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for k, v in sorted(d.items()):
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# convert dict to str to check length
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if isinstance(v, dict):
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v = str(v)
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if isinstance(v, (dict, list)):
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v = jsonutils.dumps(v)
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if wrap > 0:
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v = textwrap.fill(str(v), wrap)
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# if value has a newline, add in multiple rows
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@ -251,7 +252,11 @@ def print_dict(d, dict_property="Property", dict_value="Value", wrap=0):
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col1 = ''
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else:
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pt.add_row([k, v])
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print(strutils.safe_encode(pt.get_string()))
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result = strutils.safe_encode(pt.get_string())
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if six.PY3:
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result = result.decode()
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print(result)
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def find_resource(manager, name_or_id, **find_args):
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@ -2,6 +2,7 @@
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# The list of modules to copy from openstack-common
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module=install_venv_common
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module=jsonutils
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module=strutils
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module=timeutils
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module=uuidutils
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