#------------------------------------------------------------------------------
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license.  The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Enthought, Inc.
# Description: <Enthought naming package component>
#------------------------------------------------------------------------------
""" The initial context factory for Python file system contexts. """


# Local imports.
from context import Context
from initial_context_factory import InitialContextFactory
from object_serializer import ObjectSerializer
from pyfs_context import PyFSContext
from pyfs_context_factory import PyFSContextFactory
from pyfs_object_factory import PyFSObjectFactory
from pyfs_state_factory import PyFSStateFactory


class PyFSInitialContextFactory(InitialContextFactory):
    """ The initial context factory for Python file system contexts. """

    ###########################################################################
    # 'InitialContextFactory' interface.
    ###########################################################################

    def get_initial_context(self, environment):
        """ Creates an initial context for beginning name resolution. """

        # Object factories.
        object_factories = [PyFSObjectFactory(), PyFSContextFactory()]
        environment[Context.OBJECT_FACTORIES] = object_factories

        # State factories.
        state_factories = [PyFSStateFactory()]
        environment[Context.STATE_FACTORIES] = state_factories

        # Object serializers.
        object_serializers = [ObjectSerializer()]
        environment[PyFSContext.OBJECT_SERIALIZERS] = object_serializers

        return PyFSContext(path=r'', environment=environment)

#### EOF ######################################################################