ac6a0dedec
Added ability to modify/remove data from structures (like Heat templates) via jsonpatch and thus added ability to clean up Heat resources that was obtained by deleted instances Closes bug: #1296624 Change-Id: I4db226a5ab00ff363f8b5d44a5d690df942622e8
101 lines
3.4 KiB
Python
101 lines
3.4 KiB
Python
# Copyright (c) 2014 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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import types
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import muranoapi.dsl.murano_object as murano_object
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class ObjRef(object):
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def __init__(self, obj):
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self.ref_obj = obj
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def serialize(root_object, executor):
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if root_object is None:
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tree = None
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attributes = []
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else:
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serialized_objects = set()
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tree = _pass1_serialize(root_object, None, serialized_objects)
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_pass2_serialize(tree, serialized_objects)
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attributes = executor.attribute_store.serialize(serialized_objects)
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return {
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'Objects': tree,
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'ObjectsCopy': tree,
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'Attributes': attributes
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}
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def _cmp_objects(obj1, obj2):
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if obj1 is None and obj2 is None:
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return True
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if obj1 is None or obj2 is None:
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return False
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return obj1.object_id == obj2.object_id
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def _pass1_serialize(value, parent, serialized_objects):
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if isinstance(value, (types.StringTypes, types.IntType, types.FloatType,
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types.BooleanType, types.NoneType)):
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return value
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elif isinstance(value, murano_object.MuranoObject):
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if not _cmp_objects(value.parent, parent) \
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or value.object_id in serialized_objects:
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return ObjRef(value)
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else:
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result = value.to_dictionary()
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serialized_objects.add(value.object_id)
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return _pass1_serialize(result, value, serialized_objects)
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elif isinstance(value, types.DictionaryType):
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result = {}
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for d_key, d_value in value.iteritems():
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result_key = str(d_key)
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result[result_key] = _pass1_serialize(
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d_value, parent, serialized_objects)
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return result
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elif isinstance(value, types.ListType):
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return [_pass1_serialize(t, parent, serialized_objects) for t in value]
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elif isinstance(value, types.TupleType):
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return _pass1_serialize(list(value), parent, serialized_objects)
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else:
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raise ValueError()
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def _pass2_serialize(value, serialized_objects):
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if isinstance(value, types.DictionaryType):
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for d_key, d_value in value.iteritems():
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if isinstance(d_value, ObjRef):
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if d_value.ref_obj.object_id in serialized_objects:
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value[d_key] = d_value.ref_obj.object_id
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else:
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value[d_key] = None
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else:
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_pass2_serialize(d_value, serialized_objects)
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elif isinstance(value, types.ListType):
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index = 0
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while index < len(value):
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item = value[index]
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if isinstance(item, ObjRef):
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if item.ref_obj.object_id in serialized_objects:
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value[index] = item.ref_obj.object_id
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else:
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value.pop(index)
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index -= 1
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else:
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_pass2_serialize(item, serialized_objects)
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index += 1
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