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authorzhipengh <zhipengh512@gmail.com>2015-12-22 15:04:53 +0800
committerzhipengh <zhipengh512@gmail.com>2015-12-22 15:04:53 +0800
commitb678c5bfea0f1b142c2a4a5bdee1e3309a021887 (patch)
tree493ec289254370057daaaded00fd1b4761783c86 /tosca2heat/heat-translator-0.3.0/translator/conf/config.py
parent828f613ea0c3e334eacf3f7857252246708d1c88 (diff)
JIRA:PARSER-15 Provide Standalone Heat-Translator Liberty Pypi Packages
Diffstat (limited to 'tosca2heat/heat-translator-0.3.0/translator/conf/config.py')
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+#
+# 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.
+
+''' Provide a global configuration for the TOSCA translator'''
+
+from six.moves import configparser
+
+from toscaparser.utils.gettextutils import _
+import translator.common.exception as exception
+
+
+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