heat-translator/translator/conf/__init__.py
Julio Ruano 3f98139a7e Allow for dynamic class loading of target types
Tosca types need to be mapped to corresponding target translation
types (i.e. HOT). This commit allows for the target types to be
dynamically loaded from a directory. It allows for more flexibility
by pulling types from a known directory instead of defining each
individiual type statically in the code. For example, with this
commit you no longer need a separate import for each target type.

Also, this commit adds the notion of a global configuration object
that can be shared throughout the translator. The configuration
defines the location directory for custom defined target types.
This configuration can be set by the user in the corresponding
translator/conf/translator.conf file. In the future, additional
values can be added to this configuration and the code can be
extended to support them, but only the required values were
implemented here.

Change-Id: If7b8da12eef5b8ed8a2e11b1f412203d4ed59c5a
Implements: blueprint dynamic-tosca-to-hot-map
2015-09-28 12:09:02 -05:00

37 lines
1.2 KiB
Python

#
# 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.
''' Initialize the global configuration for the translator '''
import os
from translator.conf.config import ConfigProvider
CONF_FILENAME = 'translator.conf'
def init_global_conf():
'''Initialize the configuration provider.
Allows the configuration to be shared throughout the translator code.
The file used is translator.conf, and is within the conf/ directory. It
is a standard ini format, and is prcessed using the ConfigParser module.
'''
conf_path = os.path.dirname(os.path.abspath(__file__))
conf_file = os.path.join(conf_path, CONF_FILENAME)
ConfigProvider._load_config(conf_file)
init_global_conf()