Update config generator to use oslo released libs
The adopted config generator script was using an older version of gettextutils from oslo_incubator which is now available in oslo.i18n and importutils from oslo.utils Change-Id: I6814b64d69a14ba6374d5200894d57f9dea8de9e
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Ghe Rivero
parent
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459222f69e
@ -118,9 +118,9 @@
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# (Optional) Enables or disables syslog rfc5424 format for
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# logging. If enabled, prefixes the MSG part of the syslog
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# message with APP-NAME (RFC5424). The format without the APP-
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# NAME is deprecated in I, and will be removed in J. (boolean
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# value)
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#use_syslog_rfc_format=false
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# NAME is deprecated in K, and will be removed in L, along
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# with this option. (boolean value)
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#use_syslog_rfc_format=true
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# Syslog facility to receive log lines. (string value)
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#syslog_log_facility=LOG_USER
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@ -31,13 +31,13 @@ import sys
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import textwrap
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from oslo_config import cfg
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import oslo_i18n
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from oslo_utils import importutils
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import six
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import stevedore.named
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from ironic.openstack.common import gettextutils
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from ironic.openstack.common import importutils
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gettextutils.install('ironic')
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oslo_i18n.install('ironic')
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STROPT = "StrOpt"
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BOOLOPT = "BoolOpt"
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@ -1,479 +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 ironic.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 locale
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from logging import handlers
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import os
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from babel import localedata
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import six
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_AVAILABLE_LANGUAGES = {}
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# FIXME(dhellmann): Remove this when moving to oslo.i18n.
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USE_LAZY = False
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class TranslatorFactory(object):
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"""Create translator functions
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"""
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def __init__(self, domain, localedir=None):
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"""Establish a set of translation functions for the domain.
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:param domain: Name of translation domain,
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specifying a message catalog.
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:type domain: str
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:param lazy: Delays translation until a message is emitted.
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Defaults to False.
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:type lazy: Boolean
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:param localedir: Directory with translation catalogs.
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:type localedir: str
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"""
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self.domain = domain
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if localedir is None:
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localedir = os.environ.get(domain.upper() + '_LOCALEDIR')
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self.localedir = localedir
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def _make_translation_func(self, domain=None):
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"""Return a new translation function ready for use.
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Takes into account whether or not lazy translation is being
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done.
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The domain can be specified to override the default from the
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factory, but the localedir from the factory is always used
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because we assume the log-level translation catalogs are
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installed in the same directory as the main application
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catalog.
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"""
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if domain is None:
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domain = self.domain
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t = gettext.translation(domain,
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localedir=self.localedir,
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fallback=True)
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# Use the appropriate method of the translation object based
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# on the python version.
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m = t.gettext if six.PY3 else t.ugettext
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def f(msg):
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"""oslo.i18n.gettextutils translation function."""
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if USE_LAZY:
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return Message(msg, domain=domain)
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return m(msg)
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return f
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@property
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def primary(self):
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"The default translation function."
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return self._make_translation_func()
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def _make_log_translation_func(self, level):
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return self._make_translation_func(self.domain + '-log-' + level)
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@property
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def log_info(self):
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"Translate info-level log messages."
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return self._make_log_translation_func('info')
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@property
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def log_warning(self):
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"Translate warning-level log messages."
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return self._make_log_translation_func('warning')
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@property
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def log_error(self):
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"Translate error-level log messages."
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return self._make_log_translation_func('error')
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@property
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def log_critical(self):
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"Translate critical-level log messages."
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return self._make_log_translation_func('critical')
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# NOTE(dhellmann): When this module moves out of the incubator into
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# oslo.i18n, these global variables can be moved to an integration
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# module within each application.
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# Create the global translation functions.
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_translators = TranslatorFactory('ironic')
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# The primary translation function using the well-known name "_"
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_ = _translators.primary
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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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# NOTE(dhellmann): End of globals that will move to the application's
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# integration module.
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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 install(domain):
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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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Note that to enable lazy translation, enable_lazy must be
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called.
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:param domain: the translation domain
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"""
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from six import moves
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tf = TranslatorFactory(domain)
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moves.builtins.__dict__['_'] = tf.primary
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class Message(six.text_type):
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"""A Message object is a unicode object that can be translated.
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Translation of Message is done explicitly using the translate() method.
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For all non-translation intents and purposes, a Message is simply unicode,
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and can be treated as such.
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"""
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def __new__(cls, msgid, msgtext=None, params=None,
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domain='ironic', *args):
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"""Create a new Message object.
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In order for translation to work gettext requires a message ID, this
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msgid will be used as the base unicode text. It is also possible
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for the msgid and the base unicode text to be different by passing
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the msgtext parameter.
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"""
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# If the base msgtext is not given, we use the default translation
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# of the msgid (which is in English) just in case the system locale is
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# not English, so that the base text will be in that locale by default.
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if not msgtext:
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msgtext = Message._translate_msgid(msgid, domain)
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# We want to initialize the parent unicode with the actual object that
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# would have been plain unicode if 'Message' was not enabled.
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msg = super(Message, cls).__new__(cls, msgtext)
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msg.msgid = msgid
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msg.domain = domain
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msg.params = params
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return msg
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def translate(self, desired_locale=None):
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"""Translate this message to the desired locale.
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:param desired_locale: The desired locale to translate the message to,
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if no locale is provided the message will be
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translated to the system's default locale.
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:returns: the translated message in unicode
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"""
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translated_message = Message._translate_msgid(self.msgid,
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self.domain,
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desired_locale)
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if self.params is None:
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# No need for more translation
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return translated_message
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# This Message object may have been formatted with one or more
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# Message objects as substitution arguments, given either as a single
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# argument, part of a tuple, or as one or more values in a dictionary.
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# When translating this Message we need to translate those Messages too
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translated_params = _translate_args(self.params, desired_locale)
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translated_message = translated_message % translated_params
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return translated_message
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@staticmethod
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def _translate_msgid(msgid, domain, desired_locale=None):
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if not desired_locale:
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system_locale = locale.getdefaultlocale()
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# If the system locale is not available to the runtime use English
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if not system_locale[0]:
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desired_locale = 'en_US'
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else:
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desired_locale = system_locale[0]
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locale_dir = os.environ.get(domain.upper() + '_LOCALEDIR')
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lang = gettext.translation(domain,
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localedir=locale_dir,
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languages=[desired_locale],
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fallback=True)
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if six.PY3:
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translator = lang.gettext
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else:
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translator = lang.ugettext
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translated_message = translator(msgid)
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return translated_message
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def __mod__(self, other):
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# When we mod a Message we want the actual operation to be performed
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# by the parent class (i.e. unicode()), the only thing we do here is
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# save the original msgid and the parameters in case of a translation
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params = self._sanitize_mod_params(other)
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unicode_mod = super(Message, self).__mod__(params)
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modded = Message(self.msgid,
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msgtext=unicode_mod,
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params=params,
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domain=self.domain)
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return modded
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def _sanitize_mod_params(self, other):
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"""Sanitize the object being modded with this Message.
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- Add support for modding 'None' so translation supports it
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- Trim the modded object, which can be a large dictionary, to only
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those keys that would actually be used in a translation
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- Snapshot the object being modded, in case the message is
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translated, it will be used as it was when the Message was created
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"""
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if other is None:
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params = (other,)
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elif isinstance(other, dict):
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# Merge the dictionaries
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# Copy each item in case one does not support deep copy.
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params = {}
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if isinstance(self.params, dict):
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for key, val in self.params.items():
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params[key] = self._copy_param(val)
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for key, val in other.items():
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params[key] = self._copy_param(val)
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else:
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params = self._copy_param(other)
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return params
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def _copy_param(self, param):
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try:
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return copy.deepcopy(param)
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except Exception:
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# Fallback to casting to unicode this will handle the
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# python code-like objects that can't be deep-copied
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return six.text_type(param)
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def __add__(self, other):
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msg = _('Message objects do not support addition.')
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raise TypeError(msg)
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def __radd__(self, other):
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return self.__add__(other)
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if six.PY2:
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def __str__(self):
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# NOTE(luisg): Logging in python 2.6 tries to str() log records,
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# and it expects specifically a UnicodeError in order to proceed.
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msg = _('Message objects do not support str() because they may '
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'contain non-ascii characters. '
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'Please use unicode() or translate() instead.')
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raise UnicodeError(msg)
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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 update all projects
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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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# NOTE(luisg): Babel>=1.0,<1.3 has a bug where some OpenStack supported
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# locales (e.g. 'zh_CN', and 'zh_TW') aren't supported even though they
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# are perfectly legitimate locales:
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# https://github.com/mitsuhiko/babel/issues/37
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# In Babel 1.3 they fixed the bug and they support these locales, but
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# they are still not explicitly "listed" by locale_identifiers().
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# That is why we add the locales here explicitly if necessary so that
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# they are listed as supported.
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aliases = {'zh': 'zh_CN',
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'zh_Hant_HK': 'zh_HK',
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'zh_Hant': 'zh_TW',
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'fil': 'tl_PH'}
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for (locale_, alias) in six.iteritems(aliases):
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if locale_ in language_list and alias not in language_list:
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language_list.append(alias)
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_AVAILABLE_LANGUAGES[domain] = language_list
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return copy.copy(language_list)
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def translate(obj, desired_locale=None):
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"""Gets the translated unicode representation of the given object.
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If the object is not translatable it is returned as-is.
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If the locale is None the object is translated to the system locale.
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:param obj: the object to translate
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:param desired_locale: the locale to translate the message to, if None the
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default system locale will be used
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:returns: the translated object in unicode, or the original object if
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it could not be translated
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"""
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message = obj
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if not isinstance(message, Message):
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# If the object to translate is not already translatable,
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# let's first get its unicode representation
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message = six.text_type(obj)
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if isinstance(message, Message):
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# Even after unicoding() we still need to check if we are
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# running with translatable unicode before translating
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return message.translate(desired_locale)
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return obj
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def _translate_args(args, desired_locale=None):
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"""Translates all the translatable elements of the given arguments object.
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This method is used for translating the translatable values in method
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arguments which include values of tuples or dictionaries.
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If the object is not a tuple or a dictionary the object itself is
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translated if it is translatable.
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If the locale is None the object is translated to the system locale.
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:param args: the args to translate
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:param desired_locale: the locale to translate the args to, if None the
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default system locale will be used
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:returns: a new args object with the translated contents of the original
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"""
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if isinstance(args, tuple):
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return tuple(translate(v, desired_locale) for v in args)
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if isinstance(args, dict):
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translated_dict = {}
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for (k, v) in six.iteritems(args):
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translated_v = translate(v, desired_locale)
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translated_dict[k] = translated_v
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return translated_dict
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return translate(args, desired_locale)
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class TranslationHandler(handlers.MemoryHandler):
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"""Handler that translates records before logging them.
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The TranslationHandler takes a locale and a target logging.Handler object
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to forward LogRecord objects to after translating them. This handler
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depends on Message objects being logged, instead of regular strings.
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The handler can be configured declaratively in the logging.conf as follows:
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[handlers]
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keys = translatedlog, translator
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[handler_translatedlog]
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class = handlers.WatchedFileHandler
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args = ('/var/log/api-localized.log',)
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formatter = context
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[handler_translator]
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class = openstack.common.log.TranslationHandler
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target = translatedlog
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args = ('zh_CN',)
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If the specified locale is not available in the system, the handler will
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log in the default locale.
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"""
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def __init__(self, locale=None, target=None):
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"""Initialize a TranslationHandler
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:param locale: locale to use for translating messages
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:param target: logging.Handler object to forward
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LogRecord objects to after translation
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"""
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# NOTE(luisg): In order to allow this handler to be a wrapper for
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# other handlers, such as a FileHandler, and still be able to
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# configure it using logging.conf, this handler has to extend
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# MemoryHandler because only the MemoryHandlers' logging.conf
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# parsing is implemented such that it accepts a target handler.
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handlers.MemoryHandler.__init__(self, capacity=0, target=target)
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self.locale = locale
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def setFormatter(self, fmt):
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self.target.setFormatter(fmt)
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def emit(self, record):
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# We save the message from the original record to restore it
|
||||
# after translation, so other handlers are not affected by this
|
||||
original_msg = record.msg
|
||||
original_args = record.args
|
||||
|
||||
try:
|
||||
self._translate_and_log_record(record)
|
||||
finally:
|
||||
record.msg = original_msg
|
||||
record.args = original_args
|
||||
|
||||
def _translate_and_log_record(self, record):
|
||||
record.msg = translate(record.msg, self.locale)
|
||||
|
||||
# In addition to translating the message, we also need to translate
|
||||
# arguments that were passed to the log method that were not part
|
||||
# of the main message e.g., log.info(_('Some message %s'), this_one))
|
||||
record.args = _translate_args(record.args, self.locale)
|
||||
|
||||
self.target.emit(record)
|
||||
@ -1,73 +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.
|
||||
|
||||
"""
|
||||
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('.')
|
||||
__import__(mod_str)
|
||||
try:
|
||||
return getattr(sys.modules[mod_str], class_str)
|
||||
except 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 import_versioned_module(version, submodule=None):
|
||||
module = 'ironic.v%s' % version
|
||||
if submodule:
|
||||
module = '.'.join((module, submodule))
|
||||
return import_module(module)
|
||||
|
||||
|
||||
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
|
||||
Loading…
Reference in New Issue
Block a user