23a67181eb
template() works similar to the class() contract in regards to the data validation but do not instantiate objects. Instead the data is left in the object model dictionary format so that it could be instantiated later with the new() function. In addition it allows to excluse specified properties from validation and result template so that they could be provided later. Objects that are assigned to the property or argument with template() contract will be automatically converted to their object model representation. Change-Id: Id1016ae0cab1a18663900b27943f150d008e61f0
226 lines
8.6 KiB
Python
226 lines
8.6 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 six
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from yaql import utils
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from murano.dsl import dsl
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from murano.dsl import dsl_types
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from murano.dsl import helpers
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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(obj, executor,
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serialization_type=dsl_types.DumpTypes.Serializable):
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with helpers.with_object_store(executor.object_store):
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return serialize_model(
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obj, executor, True,
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make_copy=False,
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serialize_attributes=False,
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serialize_actions=False,
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serialization_type=serialization_type)[0]['Objects']
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def _serialize_object(root_object, designer_attributes, allow_refs,
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executor, serialize_actions=True,
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serialization_type=dsl_types.DumpTypes.Serializable):
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serialized_objects = set()
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obj = root_object
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while True:
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obj, need_another_pass = _pass12_serialize(
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obj, None, serialized_objects, designer_attributes, executor,
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serialize_actions, serialization_type, allow_refs)
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if not need_another_pass:
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break
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tree = [obj]
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_pass3_serialize(tree, serialized_objects, allow_refs)
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return tree[0], serialized_objects
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def serialize_model(root_object, executor,
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allow_refs=False,
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make_copy=True,
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serialize_attributes=True,
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serialize_actions=True,
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serialization_type=dsl_types.DumpTypes.Serializable):
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designer_attributes = executor.object_store.designer_attributes
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if root_object is None:
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tree = None
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tree_copy = None
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attributes = []
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serialized_objects = set()
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else:
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with helpers.with_object_store(executor.object_store):
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tree, serialized_objects = _serialize_object(
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root_object, designer_attributes, allow_refs, executor,
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serialize_actions, serialization_type)
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tree_copy = _serialize_object(
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root_object, None, allow_refs, executor, serialize_actions,
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serialization_type)[0] if make_copy else None
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attributes = executor.attribute_store.serialize(
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serialized_objects) if serialize_attributes else None
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return {
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'Objects': tree,
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'ObjectsCopy': tree_copy,
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'Attributes': attributes
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}, serialized_objects
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def _serialize_available_action(obj, current_actions, executor):
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result = {}
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actions = obj.type.find_methods(lambda m: m.is_action)
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for action in actions:
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action_id = '{0}_{1}'.format(obj.object_id, action.name)
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entry = current_actions.get(action_id, {'enabled': True})
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entry['name'] = action.name
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context = executor.create_type_context(action.declaring_type)
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meta = action.get_meta(context)
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meta_dict = {item.type.name: item for item in meta}
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title = meta_dict.get('io.murano.metadata.Title')
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if title:
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entry['title'] = title.get_property('text')
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else:
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entry['title'] = action.name
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description = meta_dict.get('io.murano.metadata.Description')
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if description:
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entry['description'] = description.get_property('text')
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help_text = meta_dict.get('io.murano.metadata.HelpText')
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if help_text:
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entry['helpText'] = help_text.get_property('text')
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result[action_id] = entry
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return result
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def _pass12_serialize(value, parent, serialized_objects,
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designer_attributes_getter, executor,
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serialize_actions, serialization_type, allow_refs):
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if isinstance(value, dsl.MuranoObjectInterface):
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value = value.object
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if isinstance(value, (six.string_types,
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int, float, bool)) or value is None:
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return value, False
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if isinstance(value, dsl_types.MuranoObject):
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if value.owner is not parent or value.object_id in serialized_objects:
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return ObjRef(value), True
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elif isinstance(value, ObjRef):
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if (value.ref_obj.object_id not in serialized_objects and
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is_nested_in(value.ref_obj.owner, parent)):
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value = value.ref_obj
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else:
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return value, False
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if isinstance(value, (dsl_types.MuranoType,
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dsl_types.MuranoTypeReference)):
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return helpers.format_type_string(value), False
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if value is helpers.get_contract_passkey():
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return value, False
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if isinstance(value, dsl_types.MuranoObject):
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result = value.to_dictionary(
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serialization_type=serialization_type, allow_refs=allow_refs)
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if designer_attributes_getter is not None:
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if serialization_type == dsl_types.DumpTypes.Inline:
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system_data = result
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else:
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system_data = result['?']
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system_data.update(designer_attributes_getter(value.object_id))
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if serialize_actions:
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# deserialize and merge list of actions
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system_data['_actions'] = _serialize_available_action(
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value, system_data.get('_actions', {}), executor)
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serialized_objects.add(value.object_id)
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return _pass12_serialize(
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result, value, serialized_objects, designer_attributes_getter,
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executor, serialize_actions, serialization_type, allow_refs)
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elif isinstance(value, utils.MappingType):
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result = {}
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need_another_pass = False
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for d_key, d_value in six.iteritems(value):
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if (isinstance(d_key, dsl_types.MuranoType) and
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serialization_type == dsl_types.DumpTypes.Serializable):
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result_key = str(d_key)
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else:
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result_key = d_key
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if (result_key == 'type' and
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isinstance(d_value, dsl_types.MuranoType) and
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serialization_type == dsl_types.DumpTypes.Mixed):
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result_value = d_value, False
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else:
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result_value = _pass12_serialize(
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d_value, parent, serialized_objects,
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designer_attributes_getter, executor, serialize_actions,
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serialization_type, allow_refs)
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result[result_key] = result_value[0]
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if result_value[1]:
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need_another_pass = True
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return result, need_another_pass
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elif utils.is_sequence(value) or isinstance(value, utils.SetType):
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need_another_pass = False
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result = []
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for t in value:
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v, nmp = _pass12_serialize(
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t, parent, serialized_objects, designer_attributes_getter,
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executor, serialize_actions, serialization_type, allow_refs)
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if nmp:
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need_another_pass = True
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result.append(v)
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return result, need_another_pass
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else:
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raise ValueError()
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def _pass3_serialize(value, serialized_objects, allow_refs=False):
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if isinstance(value, dict):
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for d_key, d_value in value.items():
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if isinstance(d_value, ObjRef):
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if (d_value.ref_obj.object_id in serialized_objects or
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allow_refs):
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value[d_key] = d_value.ref_obj.object_id
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else:
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del value[d_key]
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else:
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_pass3_serialize(d_value, serialized_objects, allow_refs)
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elif isinstance(value, list):
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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 or allow_refs:
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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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_pass3_serialize(item, serialized_objects, allow_refs)
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index += 1
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return value
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def is_nested_in(obj, ancestor):
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while True:
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if obj is ancestor:
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return True
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if obj is None:
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return False
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obj = obj.owner
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