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Avoid default serialization of classes in dump_attrs

For playbook base objects, when dumping attributes via dump_attrs() an
attribute like loop_control is a class. Using the default serialization
for these is slow and consumes a lot of memory. Since LoopControl is also
based on the Base class, we can use serialize() instead and save a lot of
resources.

This also adds a from_attrs() complimentary method to nicely turn the
dumped attrs back into proper field attributes.

Fixes #23579
This commit is contained in:
James Cammarata 2017-05-11 14:57:30 -05:00
parent 409fe1a3c3
commit 78478e80ea
2 changed files with 21 additions and 4 deletions

View file

@ -506,10 +506,28 @@ class Base(with_metaclass(BaseMeta, object)):
Dumps all attributes to a dictionary
'''
attrs = dict()
for name in self._valid_attrs.keys():
attrs[name] = getattr(self, name)
for (name, attribute) in iteritems(self._valid_attrs):
attr = getattr(self, name)
if attribute.isa == 'class' and attr is not None and hasattr(attr, 'serialize'):
attrs[name] = attr.serialize()
else:
attrs[name] = attr
return attrs
def from_attrs(self, attrs):
'''
Loads attributes from a dictionary
'''
for (attr, value) in iteritems(attrs):
if attr in self._valid_attrs:
attribute = self._valid_attrs[attr]
if attribute.isa == 'class' and isinstance(value, dict):
obj = attribute.class_type()
obj.deserialize(value)
setattr(self, attr, obj)
else:
setattr(self, attr, value)
def serialize(self):
'''
Serializes the object derived from the base object into

View file

@ -332,8 +332,7 @@ class StrategyBase:
found_task = iterator.get_original_task(original_host, task_result._task)
original_task = found_task.copy(exclude_parent=True, exclude_tasks=True)
original_task._parent = found_task._parent
for (attr, val) in iteritems(task_result._task_fields):
setattr(original_task, attr, val)
original_task.from_attrs(task_result._task_fields)
task_result._host = original_host
task_result._task = original_task