deb-murano/muranoapi/engine/simple_cloader.py
Serg Melikyan 5958cced52 Resolve issues with circular dependency
* Resolved issues with circular dependencies
 * Updated objects namespaces to the new io.murano.* namespace
 * Resolved a few issues related to not included code from PoC
 * Renamed objects to more pythonic name (back to original actually)

Closes-bug: #1297146
Change-Id: I34641eca33c70908bd44b50f0956abda9d8dbfa7
2014-03-31 15:18:56 +04:00

49 lines
1.6 KiB
Python

# Copyright (c) 2013 Mirantis 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.
import os.path
import yaml
import muranoapi.dsl.class_loader as class_loader
import muranoapi.dsl.yaql_expression as yaql_expression
import muranoapi.engine.system.yaql_functions as yaql_functions
def yaql_constructor(loader, node):
value = loader.construct_scalar(node)
return yaql_expression.YaqlExpression(value)
yaml.add_constructor(u'!yaql', yaql_constructor)
yaml.add_implicit_resolver(u'!yaql', yaql_expression.YaqlExpression)
class SimpleClassLoader(class_loader.MuranoClassLoader):
def __init__(self, base_path):
self._base_path = base_path
super(SimpleClassLoader, self).__init__()
def load_definition(self, name):
path = os.path.join(self._base_path, name, 'manifest.yaml')
if not os.path.exists(path):
return None
with open(path) as stream:
return yaml.load(stream)
def create_root_context(self):
context = super(SimpleClassLoader, self).create_root_context()
yaql_functions.register(context)
return context