X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=common%2Fpython%2Frift%2Fmano%2Ftosca_translator%2Fconf%2Fconfig.py;fp=common%2Fpython%2Frift%2Fmano%2Ftosca_translator%2Fconf%2Fconfig.py;h=dd80a9c890977c07b1bb365617fa6ad3ccf0d558;hb=6f07e6f33f751ab4ffe624f6037f887b243bece2;hp=0000000000000000000000000000000000000000;hpb=72a563886272088feb7cb52e4aafbe6d2c580ff9;p=osm%2FSO.git diff --git a/common/python/rift/mano/tosca_translator/conf/config.py b/common/python/rift/mano/tosca_translator/conf/config.py new file mode 100644 index 00000000..dd80a9c8 --- /dev/null +++ b/common/python/rift/mano/tosca_translator/conf/config.py @@ -0,0 +1,71 @@ +# +# 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. +# +# Copyright 2016 RIFT.io Inc + + +''' Provide a global configuration for the TOSCA translator''' + +from six.moves import configparser + +import rift.mano.tosca_translator.common.exception as exception + +from rift.mano.tosca_translator.common.utils import _ + + +class ConfigProvider(object): + '''Global config proxy that wraps a ConfigParser object. + + Allows for class based access to config values. Should only be initialized + once using the corresponding translator.conf file in the conf directory. + + ''' + + # List that captures all of the conf file sections. + # Append any new sections to this list. + _sections = ['DEFAULT'] + _translator_config = None + + @classmethod + def _load_config(cls, conf_file): + '''Private method only to be called once from the __init__ module''' + + cls._translator_config = configparser.ConfigParser() + try: + cls._translator_config.read(conf_file) + except configparser.ParsingError: + msg = _('Unable to parse translator.conf file.' + 'Check to see that it exists in the conf directory.') + raise exception.ConfFileParseError(message=msg) + + @classmethod + def get_value(cls, section, key): + try: + value = cls._translator_config.get(section, key) + except configparser.NoOptionError: + raise exception.ConfOptionNotDefined(key=key, section=section) + except configparser.NoSectionError: + raise exception.ConfSectionNotDefined(section=section) + + return value + + @classmethod + def get_all_values(cls): + values = [] + for section in cls._sections: + try: + values.extend(cls._translator_config.items(section=section)) + except configparser.NoOptionError: + raise exception.ConfSectionNotDefined(section=section) + + return values