mycroft-core/mycroft/messagebus/load_config.py

54 lines
1.9 KiB
Python

# Copyright 2019 Mycroft AI 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.
#
"""Message bus configuration loader.
The message bus event handler and client use basically the same configuration.
This code is re-used in both to load config values.
"""
from collections import namedtuple
from mycroft.configuration import Configuration
from mycroft.util.log import LOG
MessageBusConfig = namedtuple(
'MessageBusConfig',
['host', 'port', 'route', 'ssl']
)
def load_message_bus_config(**overrides):
"""Load the bits of device configuration needed to run the message bus."""
LOG.info('Loading message bus configs')
config = Configuration.get()
try:
websocket_configs = config['websocket']
except KeyError as ke:
LOG.error('No websocket configs found ({})'.format(repr(ke)))
raise
else:
mb_config = MessageBusConfig(
host=overrides.get('host') or websocket_configs.get('host'),
port=overrides.get('port') or websocket_configs.get('port'),
route=overrides.get('route') or websocket_configs.get('route'),
ssl=overrides.get('ssl') or config.get('ssl')
)
if not all([mb_config.host, mb_config.port, mb_config.route]):
error_msg = 'Missing one or more websocket configs'
LOG.error(error_msg)
raise ValueError(error_msg)
return mb_config