florath/rmtoo

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rmtoo/lib/vcs/Factory.py

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'''
 rmtoo
   Free and Open Source Requirements Management Tool

  Factory for different input types.

 (c) 2010-2012,2017 by flonatel GmbH & Co. KG

 For licensing details see COPYING
'''
from rmtoo.lib.vcs.Git import Git
from rmtoo.lib.vcs.FileSystem import FileSystem
from rmtoo.lib.logging import tracer


# pylint: disable=too-few-public-methods
class Factory(object):
    """Factory class: create the correct input module

    This can currently be either 'filesystem' or 'git'.
    """

    known_input_types = \
        {"git": Git,
         "filesystem": FileSystem}

    @staticmethod
    def create(input_method, input_config):
        '''Create new input handler from given parameters.'''
        tracer.info("Called: name [%s]", input_method)

        if input_method.startswith("ignore:"):
            tracer.info("Ignoring factory entry.")
            return None

        if input_method not in Factory.known_input_types:
            assert False

        return Factory.known_input_types[input_method](input_config)