util.py

# -*- coding: utf-8 -*-

# Copyright (c) 2016 Clarence Ho (clarenceho at gmail dot com)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

import sys
import pkgutil
import inspect

from sources.base import BaseSource


def get_sources():
    result = {}

    for _, name, _ in pkgutil.iter_modules(["sources"]):
        __import__("sources." + name)
        for item in inspect.getmembers(sys.modules["sources." + name], inspect.isclass):
            cls = item[1]
            if issubclass(cls, BaseSource) and not inspect.isabstract(cls):
                obj = cls()
                if obj.get_id():
                    result[obj.get_id()] = obj

    return result