75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
# Copyright 2017 FUJITSU LIMITED
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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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import os
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import pkgutil
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from oslo_config import cfg
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from oslo_utils import importutils
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CONF = cfg.CONF
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def load_conf_modules():
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"""Load all modules that contain configuration.
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Method iterates over modules of :py:module:`monasca_persister.conf`
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and imports only those that contain following methods:
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- list_opts (required by oslo_config.genconfig)
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- register_opts (required by :py:currentmodule:)
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"""
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for modname in _list_module_names():
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mod = importutils.import_module('monasca_persister.conf.' + modname)
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required_funcs = ['register_opts', 'list_opts']
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for func in required_funcs:
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if hasattr(mod, func):
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yield mod
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def _list_module_names():
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module_names = []
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package_path = os.path.dirname(os.path.abspath(__file__))
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for _, modname, ispkg in pkgutil.iter_modules(path=[package_path]):
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if not (modname == "opts" and ispkg):
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module_names.append(modname)
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return module_names
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def register_opts():
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"""Register all conf modules opts.
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This method allows different modules to register
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opts according to their needs.
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"""
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for mod in load_conf_modules():
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mod.register_opts(cfg.CONF)
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def list_opts():
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"""List all conf modules opts.
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Goes through all conf modules and yields their opts.
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"""
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for mod in load_conf_modules():
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mod_opts = mod.list_opts()
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if type(mod_opts) is list:
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for single_mod_opts in mod_opts:
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yield single_mod_opts[0], single_mod_opts[1]
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else:
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yield mod_opts[0], mod_opts[1]
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