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From AviaE <...@git.apache.org>
Subject [GitHub] incubator-ariatosca pull request #189: ARIA-174 Refactor instantiation phase
Date Thu, 03 Aug 2017 09:37:35 GMT
Github user AviaE commented on a diff in the pull request:

    https://github.com/apache/incubator-ariatosca/pull/189#discussion_r131095491
  
    --- Diff: aria/orchestrator/topology/utils.py ---
    @@ -0,0 +1,67 @@
    +# Licensed to the Apache Software Foundation (ASF) under one or more
    +# contributor license agreements.  See the NOTICE file distributed with
    +# this work for additional information regarding copyright ownership.
    +# The ASF licenses this file to You 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 copy import deepcopy
    +
    +from ...utils.versions import VersionString
    +
    +
    +def deepcopy_with_locators(value):
    +    """
    +    Like :func:`deepcopy`, but also copies over locators.
    +    """
    +
    +    res = deepcopy(value)
    +    copy_locators(res, value)
    +    return res
    +
    +
    +def copy_locators(target, source):
    +    """
    +    Copies over ``_locator`` for all elements, recursively.
    +
    +    Assumes that target and source have exactly the same list/dict structure.
    +    """
    +
    +    locator = getattr(source, '_locator', None)
    +    if locator is not None:
    +        try:
    +            setattr(target, '_locator', locator)
    +        except AttributeError:
    +            pass
    +
    +    if isinstance(target, list) and isinstance(source, list):
    +        for i, _ in enumerate(target):
    +            copy_locators(target[i], source[i])
    +    elif isinstance(target, dict) and isinstance(source, dict):
    +        for k, v in target.items():
    +            copy_locators(v, source[k])
    +
    +
    +def resolve_plugin_specification(plugin_specification, plugins):
    --- End diff --
    
    Maybe in the Service Template Handler.


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