vitrage/vitrage/evaluator/template_schema_factory.py

43 lines
1.3 KiB
Python

# Copyright 2017 - Nokia
#
# 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.
from oslo_log import log
LOG = log.getLogger(__name__)
class TemplateSchemaFactory(object):
DEFAULT_VERSION = '1'
_schemas = dict()
@classmethod
def supported_versions(cls):
return cls._schemas.keys()
@classmethod
def is_version_supported(cls, version):
return version in cls._schemas
@classmethod
def template_schema(cls, version):
if not version:
version = cls.DEFAULT_VERSION
template_schema = cls._schemas.get(version)
return template_schema
@classmethod
def register_template_schema(cls, version, template_schema):
cls._schemas[version] = template_schema
LOG.debug('Registered template schema for version %s', version)