Graduate to oslo.i18n, cleanup incubator usage
Implements: blueprint graduate-oslo-i18n [1] https://blueprints.launchpad.net/oslo-incubator/+spec/graduate-oslo-i18n Change-Id: Ie929824e2f88ad44f64efb7d97e1d04991c89802
This commit is contained in:
Ronald Bradford
parent
1324cf2085
commit
1696a789ee
@ -5,6 +5,7 @@ pbr>=1.6 # Apache-2.0
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PrettyTable<0.8,>=0.7 # BSD
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requests!=2.9.0,>=2.8.1 # Apache-2.0
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simplejson>=2.2.0 # MIT
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oslo.i18n>=2.1.0 # Apache-2.0
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oslo.utils>=3.5.0 # Apache-2.0
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python-keystoneclient!=1.8.0,!=2.1.0,>=1.6.0 # Apache-2.0
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Babel>=1.3 # BSD
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50
troveclient/_i18n.py
Normal file
50
troveclient/_i18n.py
Normal file
@ -0,0 +1,50 @@
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# Copyright 2016 OpenStack Foundation
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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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"""oslo.i18n integration module.
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See http://docs.openstack.org/developer/oslo.i18n/usage.html .
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"""
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import oslo_i18n
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DOMAIN = "troveclient"
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_translators = oslo_i18n.TranslatorFactory(domain=DOMAIN)
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# The primary translation function using the well-known name "_"
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_ = _translators.primary
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# The contextual translation function using the name "_C"
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# requires oslo.i18n >=2.1.0
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_C = _translators.contextual_form
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# The plural translation function using the name "_P"
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# requires oslo.i18n >=2.1.0
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_P = _translators.plural_form
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# Translators for log levels.
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#
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# The abbreviated names are meant to reflect the usual use of a short
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# name like '_'. The "L" is for "log" and the other letter comes from
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# the level.
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_LI = _translators.log_info
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_LW = _translators.log_warning
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_LE = _translators.log_error
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_LC = _translators.log_critical
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def get_available_languages():
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return oslo_i18n.get_available_languages(DOMAIN)
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@ -20,8 +20,8 @@ import logging
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import pkg_resources
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import six
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from troveclient._i18n import _
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from troveclient import exceptions
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from troveclient.openstack.common.gettextutils import _ # noqa
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logger = logging.getLogger(__name__)
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@ -27,11 +27,11 @@ import abc
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import copy
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from oslo_utils import reflection
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from oslo_utils import strutils
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import six
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from six.moves.urllib import parse
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from troveclient.openstack.common.apiclient import exceptions
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from troveclient.openstack.common import strutils
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def getid(obj):
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@ -35,8 +35,8 @@ except ImportError:
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import requests
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from oslo_utils import importutils
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from troveclient.openstack.common.apiclient import exceptions
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from troveclient.openstack.common import importutils
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_logger = logging.getLogger(__name__)
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@ -1,362 +0,0 @@
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# Copyright 2012 Red Hat, Inc.
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# Copyright 2013 IBM Corp.
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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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gettext for openstack-common modules.
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Usual usage in an openstack.common module:
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from troveclient.openstack.common.gettextutils import _
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"""
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import copy
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import gettext
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import logging
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import os
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import re
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try:
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import UserString as _userString
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except ImportError:
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import collections as _userString
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from babel import localedata
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import six
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_localedir = os.environ.get('troveclient'.upper() + '_LOCALEDIR')
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_t = gettext.translation('troveclient', localedir=_localedir, fallback=True)
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_AVAILABLE_LANGUAGES = {}
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USE_LAZY = False
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def enable_lazy():
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"""Convenience function for configuring _() to use lazy gettext
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Call this at the start of execution to enable the gettextutils._
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function to use lazy gettext functionality. This is useful if
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your project is importing _ directly instead of using the
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gettextutils.install() way of importing the _ function.
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"""
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global USE_LAZY
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USE_LAZY = True
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def _(msg):
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if USE_LAZY:
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return Message(msg, 'troveclient')
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else:
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if six.PY3:
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return _t.gettext(msg)
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return _t.ugettext(msg)
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def install(domain, lazy=False):
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"""Install a _() function using the given translation domain.
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Given a translation domain, install a _() function using gettext's
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install() function.
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The main difference from gettext.install() is that we allow
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overriding the default localedir (e.g. /usr/share/locale) using
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a translation-domain-specific environment variable (e.g.
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NOVA_LOCALEDIR).
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:param domain: the translation domain
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:param lazy: indicates whether or not to install the lazy _() function.
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The lazy _() introduces a way to do deferred translation
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of messages by installing a _ that builds Message objects,
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instead of strings, which can then be lazily translated into
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any available locale.
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"""
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if lazy:
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# NOTE(mrodden): Lazy gettext functionality.
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#
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# The following introduces a deferred way to do translations on
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# messages in OpenStack. We override the standard _() function
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# and % (format string) operation to build Message objects that can
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# later be translated when we have more information.
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#
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# Also included below is an example LocaleHandler that translates
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# Messages to an associated locale, effectively allowing many logs,
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# each with their own locale.
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def _lazy_gettext(msg):
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"""Create and return a Message object.
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Lazy gettext function for a given domain, it is a factory method
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for a project/module to get a lazy gettext function for its own
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translation domain (i.e. nova, glance, cinder, etc.)
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Message encapsulates a string so that we can translate
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it later when needed.
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"""
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return Message(msg, domain)
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from six import moves
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moves.builtins.__dict__['_'] = _lazy_gettext
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else:
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localedir = '%s_LOCALEDIR' % domain.upper()
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if six.PY3:
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gettext.install(domain,
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localedir=os.environ.get(localedir))
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else:
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gettext.install(domain,
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localedir=os.environ.get(localedir),
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unicode=True)
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class Message(_userString.UserString, object):
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"""Class used to encapsulate translatable messages."""
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def __init__(self, msg, domain):
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# _msg is the gettext msgid and should never change
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self._msg = msg
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self._left_extra_msg = ''
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self._right_extra_msg = ''
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self._locale = None
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self.params = None
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self.domain = domain
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@property
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def data(self):
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# NOTE(mrodden): this should always resolve to a unicode string
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# that best represents the state of the message currently
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localedir = os.environ.get(self.domain.upper() + '_LOCALEDIR')
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if self.locale:
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lang = gettext.translation(self.domain,
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localedir=localedir,
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languages=[self.locale],
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fallback=True)
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else:
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# use system locale for translations
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lang = gettext.translation(self.domain,
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localedir=localedir,
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fallback=True)
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if six.PY3:
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ugettext = lang.gettext
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else:
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ugettext = lang.ugettext
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full_msg = (self._left_extra_msg +
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ugettext(self._msg) +
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self._right_extra_msg)
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if self.params is not None:
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full_msg = full_msg % self.params
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return six.text_type(full_msg)
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@property
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def locale(self):
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return self._locale
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@locale.setter
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def locale(self, value):
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self._locale = value
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if not self.params:
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return
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# This Message object may have been constructed with one or more
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# Message objects as substitution parameters, given as a single
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# Message, or a tuple or Map containing some, so when setting the
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# locale for this Message we need to set it for those Messages too.
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if isinstance(self.params, Message):
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self.params.locale = value
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return
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if isinstance(self.params, tuple):
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for param in self.params:
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if isinstance(param, Message):
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param.locale = value
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return
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for param in self.params.values():
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if isinstance(param, Message):
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param.locale = value
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def _save_dictionary_parameter(self, dict_param):
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full_msg = self.data
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# look for %(blah) fields in string;
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# ignore %% and deal with the
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# case where % is first character on the line
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keys = re.findall('(?:[^%]|^)?%\((\w*)\)[a-z]', full_msg)
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# if we don't find any %(blah) blocks but have a %s
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if not keys and re.findall('(?:[^%]|^)%[a-z]', full_msg):
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# apparently the full dictionary is the parameter
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params = copy.deepcopy(dict_param)
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else:
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params = {}
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for key in keys:
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try:
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params[key] = copy.deepcopy(dict_param[key])
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except TypeError:
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# cast uncopyable thing to unicode string
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params[key] = six.text_type(dict_param[key])
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return params
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def _save_parameters(self, other):
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# we check for None later to see if
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# we actually have parameters to inject,
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# so encapsulate if our parameter is actually None
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if other is None:
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self.params = (other, )
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elif isinstance(other, dict):
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self.params = self._save_dictionary_parameter(other)
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else:
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# fallback to casting to unicode,
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# this will handle the problematic python code-like
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# objects that cannot be deep-copied
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try:
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self.params = copy.deepcopy(other)
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except TypeError:
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self.params = six.text_type(other)
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return self
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# overrides to be more string-like
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def __unicode__(self):
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return self.data
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def __str__(self):
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if six.PY3:
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return self.__unicode__()
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return self.data.encode('utf-8')
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def __getstate__(self):
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to_copy = ['_msg', '_right_extra_msg', '_left_extra_msg',
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'domain', 'params', '_locale']
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new_dict = self.__dict__.fromkeys(to_copy)
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for attr in to_copy:
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new_dict[attr] = copy.deepcopy(self.__dict__[attr])
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return new_dict
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def __setstate__(self, state):
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for (k, v) in state.items():
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setattr(self, k, v)
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# operator overloads
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def __add__(self, other):
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copied = copy.deepcopy(self)
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copied._right_extra_msg += other.__str__()
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return copied
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def __radd__(self, other):
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copied = copy.deepcopy(self)
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copied._left_extra_msg += other.__str__()
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return copied
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def __mod__(self, other):
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# do a format string to catch and raise
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# any possible KeyErrors from missing parameters
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self.data % other
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copied = copy.deepcopy(self)
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return copied._save_parameters(other)
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def __mul__(self, other):
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return self.data * other
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def __rmul__(self, other):
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return other * self.data
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def __getitem__(self, key):
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return self.data[key]
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def __getslice__(self, start, end):
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return self.data.__getslice__(start, end)
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def __getattribute__(self, name):
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# NOTE(mrodden): handle lossy operations that we can't deal with yet
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# These override the UserString implementation, since UserString
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# uses our __class__ attribute to try and build a new message
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# after running the inner data string through the operation.
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# At that point, we have lost the gettext message id and can just
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# safely resolve to a string instead.
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ops = ['capitalize', 'center', 'decode', 'encode',
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'expandtabs', 'ljust', 'lstrip', 'replace', 'rjust', 'rstrip',
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'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']
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if name in ops:
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return getattr(self.data, name)
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else:
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return _userString.UserString.__getattribute__(self, name)
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def get_available_languages(domain):
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"""Lists the available languages for the given translation domain.
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:param domain: the domain to get languages for
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"""
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if domain in _AVAILABLE_LANGUAGES:
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return copy.copy(_AVAILABLE_LANGUAGES[domain])
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localedir = '%s_LOCALEDIR' % domain.upper()
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find = lambda x: gettext.find(domain,
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localedir=os.environ.get(localedir),
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languages=[x])
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# NOTE(mrodden): en_US should always be available (and first in case
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# order matters) since our in-line message strings are en_US
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language_list = ['en_US']
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# NOTE(luisg): Babel <1.0 used a function called list(), which was
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# renamed to locale_identifiers() in >=1.0, the requirements master list
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# requires >=0.9.6, uncapped, so defensively work with both. We can remove
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# this check when the master list updates to >=1.0, and all projects udpate
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list_identifiers = (getattr(localedata, 'list', None) or
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getattr(localedata, 'locale_identifiers'))
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locale_identifiers = list_identifiers()
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for i in locale_identifiers:
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if find(i) is not None:
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language_list.append(i)
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_AVAILABLE_LANGUAGES[domain] = language_list
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return copy.copy(language_list)
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def get_localized_message(message, user_locale):
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"""Gets a localized version of the given message in the given locale."""
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if isinstance(message, Message):
|
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if user_locale:
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message.locale = user_locale
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return six.text_type(message)
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else:
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return message
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|
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class LocaleHandler(logging.Handler):
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"""Handler that can have a locale associated to translate Messages.
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A quick example of how to utilize the Message class above.
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LocaleHandler takes a locale and a target logging.Handler object
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to forward LogRecord objects to after translating the internal Message.
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"""
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def __init__(self, locale, target):
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"""Initialize a LocaleHandler
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|
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:param locale: locale to use for translating messages
|
||||
:param target: logging.Handler object to forward
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LogRecord objects to after translation
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"""
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logging.Handler.__init__(self)
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self.locale = locale
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self.target = target
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|
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def emit(self, record):
|
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if isinstance(record.msg, Message):
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# set the locale and resolve to a string
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record.msg.locale = self.locale
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|
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self.target.emit(record)
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@ -1,66 +0,0 @@
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# Copyright 2011 OpenStack Foundation.
|
||||
# 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.
|
||||
|
||||
"""
|
||||
Import related utilities and helper functions.
|
||||
"""
|
||||
|
||||
import sys
|
||||
import traceback
|
||||
|
||||
|
||||
def import_class(import_str):
|
||||
"""Returns a class from a string including module and class."""
|
||||
mod_str, _sep, class_str = import_str.rpartition('.')
|
||||
try:
|
||||
__import__(mod_str)
|
||||
return getattr(sys.modules[mod_str], class_str)
|
||||
except (ValueError, AttributeError):
|
||||
raise ImportError('Class %s cannot be found (%s)' %
|
||||
(class_str,
|
||||
traceback.format_exception(*sys.exc_info())))
|
||||
|
||||
|
||||
def import_object(import_str, *args, **kwargs):
|
||||
"""Import a class and return an instance of it."""
|
||||
return import_class(import_str)(*args, **kwargs)
|
||||
|
||||
|
||||
def import_object_ns(name_space, import_str, *args, **kwargs):
|
||||
"""Tries to import object from default namespace.
|
||||
|
||||
Imports a class and return an instance of it, first by trying
|
||||
to find the class in a default namespace, then failing back to
|
||||
a full path if not found in the default namespace.
|
||||
"""
|
||||
import_value = "%s.%s" % (name_space, import_str)
|
||||
try:
|
||||
return import_class(import_value)(*args, **kwargs)
|
||||
except ImportError:
|
||||
return import_class(import_str)(*args, **kwargs)
|
||||
|
||||
|
||||
def import_module(import_str):
|
||||
"""Import a module."""
|
||||
__import__(import_str)
|
||||
return sys.modules[import_str]
|
||||
|
||||
|
||||
def try_import(import_str, default=None):
|
||||
"""Try to import a module and if it fails return default."""
|
||||
try:
|
||||
return import_module(import_str)
|
||||
except ImportError:
|
||||
return default
|
||||
@ -1,216 +0,0 @@
|
||||
# Copyright 2011 OpenStack Foundation.
|
||||
# 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.
|
||||
|
||||
"""
|
||||
System-level utilities and helper functions.
|
||||
"""
|
||||
|
||||
import re
|
||||
import sys
|
||||
import unicodedata
|
||||
|
||||
import six
|
||||
|
||||
from troveclient.openstack.common.gettextutils import _ # noqa
|
||||
|
||||
|
||||
# Used for looking up extensions of text
|
||||
# to their 'multiplied' byte amount
|
||||
BYTE_MULTIPLIERS = {
|
||||
'': 1,
|
||||
't': 1024 ** 4,
|
||||
'g': 1024 ** 3,
|
||||
'm': 1024 ** 2,
|
||||
'k': 1024,
|
||||
}
|
||||
BYTE_REGEX = re.compile(r'(^-?\d+)(\D*)')
|
||||
|
||||
TRUE_STRINGS = ('1', 't', 'true', 'on', 'y', 'yes')
|
||||
FALSE_STRINGS = ('0', 'f', 'false', 'off', 'n', 'no')
|
||||
|
||||
SLUGIFY_STRIP_RE = re.compile(r"[^\w\s-]")
|
||||
SLUGIFY_HYPHENATE_RE = re.compile(r"[-\s]+")
|
||||
|
||||
|
||||
def int_from_bool_as_string(subject):
|
||||
"""Interpret a string as a boolean and return either 1 or 0.
|
||||
|
||||
Any string value in:
|
||||
|
||||
('True', 'true', 'On', 'on', '1')
|
||||
|
||||
is interpreted as a boolean True.
|
||||
|
||||
Useful for JSON-decoded stuff and config file parsing
|
||||
"""
|
||||
return bool_from_string(subject) and 1 or 0
|
||||
|
||||
|
||||
def bool_from_string(subject, strict=False):
|
||||
"""Interpret a string as a boolean.
|
||||
|
||||
A case-insensitive match is performed such that strings matching 't',
|
||||
'true', 'on', 'y', 'yes', or '1' are considered True and, when
|
||||
`strict=False`, anything else is considered False.
|
||||
|
||||
Useful for JSON-decoded stuff and config file parsing.
|
||||
|
||||
If `strict=True`, unrecognized values, including None, will raise a
|
||||
ValueError which is useful when parsing values passed in from an API call.
|
||||
Strings yielding False are 'f', 'false', 'off', 'n', 'no', or '0'.
|
||||
"""
|
||||
if not isinstance(subject, six.string_types):
|
||||
subject = str(subject)
|
||||
|
||||
lowered = subject.strip().lower()
|
||||
|
||||
if lowered in TRUE_STRINGS:
|
||||
return True
|
||||
elif lowered in FALSE_STRINGS:
|
||||
return False
|
||||
elif strict:
|
||||
acceptable = ', '.join(
|
||||
"'%s'" % s for s in sorted(TRUE_STRINGS + FALSE_STRINGS))
|
||||
msg = _("Unrecognized value '%(val)s', acceptable values are:"
|
||||
" %(acceptable)s") % {'val': subject,
|
||||
'acceptable': acceptable}
|
||||
raise ValueError(msg)
|
||||
else:
|
||||
return False
|
||||
|
||||
|
||||
def safe_decode(text, incoming=None, errors='strict'):
|
||||
"""Decodes incoming str using `incoming` if they're not already unicode.
|
||||
|
||||
:param incoming: Text's current encoding
|
||||
:param errors: Errors handling policy. See here for valid
|
||||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: text or a unicode `incoming` encoded
|
||||
representation of it.
|
||||
:raises TypeError: If text is not an isntance of str
|
||||
"""
|
||||
if not isinstance(text, six.string_types):
|
||||
raise TypeError("%s can't be decoded" % type(text))
|
||||
|
||||
if isinstance(text, six.text_type):
|
||||
return text
|
||||
|
||||
if not incoming:
|
||||
incoming = (sys.stdin.encoding or
|
||||
sys.getdefaultencoding())
|
||||
|
||||
try:
|
||||
return text.decode(incoming, errors)
|
||||
except UnicodeDecodeError:
|
||||
# Note(flaper87) If we get here, it means that
|
||||
# sys.stdin.encoding / sys.getdefaultencoding
|
||||
# didn't return a suitable encoding to decode
|
||||
# text. This happens mostly when global LANG
|
||||
# var is not set correctly and there's no
|
||||
# default encoding. In this case, most likely
|
||||
# python will use ASCII or ANSI encoders as
|
||||
# default encodings but they won't be capable
|
||||
# of decoding non-ASCII characters.
|
||||
#
|
||||
# Also, UTF-8 is being used since it's an ASCII
|
||||
# extension.
|
||||
return text.decode('utf-8', errors)
|
||||
|
||||
|
||||
def safe_encode(text, incoming=None,
|
||||
encoding='utf-8', errors='strict'):
|
||||
"""Encodes incoming str/unicode using `encoding`.
|
||||
|
||||
If incoming is not specified, text is expected to be encoded with
|
||||
current python's default encoding. (`sys.getdefaultencoding`)
|
||||
|
||||
:param incoming: Text's current encoding
|
||||
:param encoding: Expected encoding for text (Default UTF-8)
|
||||
:param errors: Errors handling policy. See here for valid
|
||||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: text or a bytestring `encoding` encoded
|
||||
representation of it.
|
||||
:raises TypeError: If text is not an isntance of str
|
||||
"""
|
||||
if not isinstance(text, six.string_types):
|
||||
raise TypeError("%s can't be encoded" % type(text))
|
||||
|
||||
if not incoming:
|
||||
incoming = (sys.stdin.encoding or
|
||||
sys.getdefaultencoding())
|
||||
|
||||
if isinstance(text, six.text_type):
|
||||
return text.encode(encoding, errors)
|
||||
elif text and encoding != incoming:
|
||||
# Decode text before encoding it with `encoding`
|
||||
text = safe_decode(text, incoming, errors)
|
||||
return text.encode(encoding, errors)
|
||||
|
||||
return text
|
||||
|
||||
|
||||
def to_bytes(text, default=0):
|
||||
"""Converts a string into an integer of bytes.
|
||||
|
||||
Looks at the last characters of the text to determine
|
||||
what conversion is needed to turn the input text into a byte number.
|
||||
Supports "B, K(B), M(B), G(B), and T(B)". (case insensitive)
|
||||
|
||||
:param text: String input for bytes size conversion.
|
||||
:param default: Default return value when text is blank.
|
||||
|
||||
"""
|
||||
match = BYTE_REGEX.search(text)
|
||||
if match:
|
||||
magnitude = int(match.group(1))
|
||||
mult_key_org = match.group(2)
|
||||
if not mult_key_org:
|
||||
return magnitude
|
||||
elif text:
|
||||
msg = _('Invalid string format: %s') % text
|
||||
raise TypeError(msg)
|
||||
else:
|
||||
return default
|
||||
mult_key = mult_key_org.lower().replace('b', '', 1)
|
||||
multiplier = BYTE_MULTIPLIERS.get(mult_key)
|
||||
if multiplier is None:
|
||||
msg = _('Unknown byte multiplier: %s') % mult_key_org
|
||||
raise TypeError(msg)
|
||||
return magnitude * multiplier
|
||||
|
||||
|
||||
def to_slug(value, incoming=None, errors="strict"):
|
||||
"""Normalize string.
|
||||
|
||||
Convert to lowercase, remove non-word characters, and convert spaces
|
||||
to hyphens.
|
||||
|
||||
Inspired by Django's `slugify` filter.
|
||||
|
||||
:param value: Text to slugify
|
||||
:param incoming: Text's current encoding
|
||||
:param errors: Errors handling policy. See here for valid
|
||||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: slugified unicode representation of `value`
|
||||
:raises TypeError: If text is not an instance of str
|
||||
"""
|
||||
value = safe_decode(value, incoming, errors)
|
||||
# NOTE(aababilov): no need to use safe_(encode|decode) here:
|
||||
# encodings are always "ascii", error handling is always "ignore"
|
||||
# and types are always known (first: unicode; second: str)
|
||||
value = unicodedata.normalize("NFKD", value).encode(
|
||||
"ascii", "ignore").decode("ascii")
|
||||
value = SLUGIFY_STRIP_RE.sub("", value).strip().lower()
|
||||
return SLUGIFY_HYPHENATE_RE.sub("-", value)
|
||||
Loading…
Reference in New Issue
Block a user