16030aeec8
This commit reworks mechanism how context chain is built at each point. The goal was to make entire chain be dependent on format version number. This would allow for example to use yaql 1.0 legacy mode context for MuranoPL/1.0 and not to use it for 2.0. Not the entire chain is built on demand up to the root instead of attaching to existed parent context as it was before. DSL host (engine) is no more required to have custom MuranoDslExecutor implementation but a new ContextManager interface that is used to control contexts on each layer. Engine uses this interface to register system classes and engine level yaql functions. Also a ContextManager is a foundation for method mocking because now all MuranoPL methods are yaql functions stored in context and with ContextManager it is possible to inject/replace function in each scope ( global, package, class, object) Partially implements: blueprint murano-versioning Change-Id: I0a553e8044061fe780a83bc04d70b8f80580988f
38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
# Copyright (c) 2015 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from murano.dsl import yaql_integration
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# noinspection PyMethodMayBeStatic
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class ContextManager(object):
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"""Context manager for the MuranoDslExecutor.
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DSL hosting project should subclass this and override methods in order
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to insert yaql function at various scopes. For example it may override
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create_root_context to register its own global yaql functions.
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"""
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def create_root_context(self, runtime_version):
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return yaql_integration.create_context(runtime_version)
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def create_package_context(self, package):
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return package.context
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def create_class_context(self, murano_class):
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return murano_class.context
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def create_object_context(self, obj):
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return None
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