# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

'''
Utility methods for working with WSGI servers
'''

class Util(object):

    @staticmethod
    def route(reqstr, controllers):
        if len(reqstr) == 0:
            return Util.select_root_controller(controllers), []
        parts = [x for x in reqstr.split("/") if len(x) > 0]
        if len(parts) == 0:
            return Util.select_root_controller(controllers), []
        return controllers[parts[0]], parts[1:]

    @staticmethod
    def select_root_controller(controllers):
        if '' in controllers:
            return controllers['']
        else:
            return None