File: py_object_factory.py

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#------------------------------------------------------------------------------
# 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>
#------------------------------------------------------------------------------
""" Object factory for Python namespace contexts. """


# Local imports.
from object_factory import ObjectFactory
from reference import Reference


class PyObjectFactory(ObjectFactory):
    """ Object factory for Python namespace contexts. """

    ###########################################################################
    # 'ObjectFactory' interface.
    ###########################################################################

    def get_object_instance(self, state, name, context):
        """ Creates an object using the specified state information. """

        obj = None

        if isinstance(state, Reference):
            if len(state.addresses) > 0:
                if state.addresses[0].type == 'py_context':
                    namespace = state.addresses[0].content
                    obj = context._context_factory(name, namespace)

        elif hasattr(state, '__dict__'):
            from apptools.naming.py_context import PyContext
            if not isinstance(state, PyContext):
                obj = context._context_factory(name, state)

        return obj

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