855e5f0d34
Murano has a garbage collector that destroys objects which were deleted in API after last deployment. However if objects were removed from object model during deployment (action execution) or were created and not saved there they left unnoticed by the engine causing resource leak. With this change all objects that are presented in object store but were not serialized to result object model are get destroyed. Change-Id: I107b34e3ae4e1b5835645e116f9445535dfb7636 Closes-Bug: #1562804
118 lines
3.9 KiB
Python
118 lines
3.9 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 weakref
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import six
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from murano.dsl import dsl_types
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from murano.dsl import helpers
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class ObjectStore(object):
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def __init__(self, executor, parent_store=None):
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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._executor = weakref.ref(executor)
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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 executor(self):
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return self._executor()
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def get(self, object_id):
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if object_id in self._store:
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result = self._store[object_id]
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if not isinstance(result, dsl_types.MuranoObject):
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result = result.object
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return result
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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 iterate(self):
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return six.iterkeys(self._store)
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def remove(self, object_id):
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self._store.pop(object_id)
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def load(self, value, owner, context=None):
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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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version_spec = helpers.parse_version_spec(
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system_key.get('classVersion'))
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if 'package' not in system_key:
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package = self.executor.package_loader.load_class_package(
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obj_type, version_spec)
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else:
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package = self.executor.package_loader.load_package(
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system_key['package'], version_spec)
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class_obj = package.find_class(obj_type, False)
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try:
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if owner is None:
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self._initializing = True
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if object_id in self._store:
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factory = self._store[object_id]
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if isinstance(factory, dsl_types.MuranoObject):
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return factory
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else:
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factory = class_obj.new(
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owner, self, self.executor,
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name=system_key.get('name'),
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object_id=object_id)
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self._store[object_id] = factory
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system_value = ObjectStore._get_designer_attributes(system_key)
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self._designer_attributes_store[object_id] = system_value
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init_context = self.executor.create_object_context(
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factory.object, context)
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obj = factory(init_context, **value)
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if not self._initializing:
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self._store[object_id] = obj
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if owner is None:
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self._initializing = False
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self._store[object_id] = factory(init_context, **value)
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finally:
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if owner is None:
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self._initializing = False
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return factory.object
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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 six.iteritems(header)
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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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