103 lines
3.4 KiB
Python
103 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 inspect
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import murano.dsl.helpers as helpers
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class ObjectStore(object):
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def __init__(self, class_loader, parent_store=None):
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self._class_loader = class_loader
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self._parent_store = parent_store
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self._store = {}
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self._designer_attributes_store = {}
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self._initializing = False
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@property
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def initializing(self):
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return self._initializing
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@property
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def class_loader(self):
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return self._class_loader
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def get(self, object_id):
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if object_id in self._store:
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return self._store[object_id]
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if self._parent_store:
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return self._parent_store.get(object_id)
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return None
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def has(self, object_id):
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return object_id in self._store
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def put(self, murano_object):
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self._store[murano_object.object_id] = murano_object
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def load(self, value, parent, context, defaults=None):
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#tmp_store = ObjectStore(self._class_loader, self)
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if value is None:
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return None
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if '?' not in value or 'type' not in value['?']:
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raise ValueError()
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system_key = value['?']
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object_id = system_key['id']
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obj_type = system_key['type']
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class_obj = self._class_loader.get_class(obj_type)
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if not class_obj:
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raise ValueError()
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if object_id in self._store:
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obj = self._store[object_id]
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else:
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obj = class_obj.new(parent, self, context=context,
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object_id=object_id, defaults=defaults)
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self._store[object_id] = obj
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self._designer_attributes_store[object_id] = \
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ObjectStore._get_designer_attributes(system_key)
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argspec = inspect.getargspec(obj.initialize).args
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if '_context' in argspec:
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value['_context'] = context
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if '_parent' in argspec:
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value['_parent'] = parent
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try:
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if parent is None:
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self._initializing = True
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obj.initialize(**value)
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if parent is None:
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self._initializing = False
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obj.initialize(**value)
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finally:
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if parent is None:
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self._initializing = False
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if not self.initializing:
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executor = helpers.get_executor(context)
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methods = obj.type.find_all_methods('initialize')
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methods.reverse()
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for method in methods:
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method.invoke(executor, obj, {})
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return obj
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@staticmethod
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def _get_designer_attributes(header):
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return dict((k, v) for k, v in header.iteritems()
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if str(k).startswith('_'))
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def designer_attributes(self, object_id):
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return self._designer_attributes_store.get(object_id, {})
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