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

# Copyright (c) 2013 Rackspace, Inc.
#
# 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.

"""Defines the Marconi Kernel

The Kernel loads up drivers per a given configuration, and manages their
lifetimes.

"""

from ConfigParser import SafeConfigParser

import marconi.transport.wsgi as wsgi
import marconi.storage.reference as reference


class Kernel(object):

    def __init__(self, config_file):
        # TODO(kgriffs) Error handling
        cfg = SafeConfigParser()
        cfg.read(config_file)

        # TODO(kgriffs) Determine driver types from cfg
        self.storage = reference.Driver(cfg)
        self.transport = wsgi.Driver(cfg, self.storage.queue_controller,
                                     self.storage.message_controller,
                                     self.storage.claim_controller)

    def run(self):
        self.transport.listen()