def _deserialize_task(self, workflow, s_state):
assert isinstance(workflow, Workflow)
# task_spec
task_spec = workflow.get_task_spec_from_name(s_state['task_spec'])
task = Task(workflow, task_spec)
# id
task.id = s_state['id']
# parent
# as the task_tree might not be complete yet
# keep the ids so they can be processed at the end
task.parent = s_state['parent']
# children
task.children = [
self._deserialize_task(workflow, c) for c in s_state['children']
]
# state
task._state = s_state['state']
task.triggered = s_state['triggered']
# last_state_change
task.last_state_change = s_state['last_state_change']
# data
task.data = s_state['data']
# internal_data
#if 'subworkflow' in s_state['internal_data']:
#
task.internal_data = self._deserialize_dict(s_state['internal_data'])
return task
def _deserialize_task(self, workflow, s_state):
assert isinstance(workflow, Workflow)
# task_spec
task_spec = workflow.get_task_spec_from_name(s_state['task_spec'])
task = Task(workflow, task_spec)
# id
task.id = s_state['id']
# parent
task.parent = workflow.get_task(s_state['parent'])
# children
task.children = [
self._deserialize_task(workflow, c) for c in s_state['children']
]
# state
task._state = s_state['state']
task.triggered = s_state['triggered']
# last_state_change
task.last_state_change = s_state['last_state_change']
# attributes
task.attributes = s_state['attributes']
# internal_attributes
task.internal_attributes = s_state['internal_attributes']
return task
def _deserialize_task(self, workflow, s_state):
assert isinstance(workflow, Workflow)
# task_spec
task_spec = workflow.get_task_spec_from_name(s_state['task_spec'])
task = Task(workflow, task_spec)
# id
task.id = s_state['id']
# parent
task.parent = workflow.get_task(s_state['parent'])
# children
task.children = [self._deserialize_task(workflow, c) for c in s_state['children']]
# state
task._state = s_state['state']
task.triggered = s_state['triggered']
# last_state_change
task.last_state_change = s_state['last_state_change']
# attributes
task.attributes = s_state['attributes']
# internal_attributes
task.internal_attributes = s_state['internal_attributes']
return task
def _deserialize_task(self, workflow, s_state):
assert isinstance(workflow, Workflow)
# task_spec
task_spec = workflow.get_task_spec_from_name(s_state['task_spec'])
task = Task(workflow, task_spec)
# id
task.id = s_state['id']
# parent
# as the task_tree might not be complete yet
# keep the ids so they can be processed at the end
task.parent = s_state['parent']
# children
task.children = [self._deserialize_task(workflow, c) for c in s_state['children']]
# state
task._state = s_state['state']
task.triggered = s_state['triggered']
# last_state_change
task.last_state_change = s_state['last_state_change']
# data
task.data = s_state['data']
# internal_data
task.internal_data = s_state['internal_data']
return task
def _retry_failed_task_clone(self, failed_task):
'''
Retry failed task by cloning it, leaving exisitng task as is.
(marat): personally a like this way much better, then _retry_failed_task(), but
there is a problem with leaving failed_task in ERROR state,
cause workflow becomes incompleted forever
'''
cloned_task = Task(failed_task.workflow,
failed_task.task_spec,
parent=failed_task.parent,
state=Task.FUTURE,
internal_data={
'error_data':
failed_task.internal_data['error_data']
})
# Correct position
siblings = failed_task.parent.children
siblings.pop()
siblings.insert(siblings.index(failed_task) + 1, cloned_task)
for child in failed_task.children[:]:
if child.task_spec in failed_task.task_spec.outputs:
cloned_task.children.append(child)
failed_task.children.remove(child)
cloned_task.task_spec._update_state(cloned_task)
def accept_message(self, message):
"""
Indicate to the workflow that a message has been received. The message will be processed
by any waiting Intermediate or Boundary Message Events, that are waiting for the message.
"""
assert not self.read_only
self.refresh_waiting_tasks()
self.do_engine_steps()
for my_task in Task.Iterator(self.task_tree, Task.WAITING):
my_task.task_spec.accept_message(my_task, message)
def _branch_is_complete(self, my_task):
# Determine whether that branch is now completed by checking whether
# it has any waiting items other than myself in it.
skip = None
for task in Task.Iterator(my_task, my_task.NOT_FINISHED_MASK):
# If the current task is a child of myself, ignore it.
if skip is not None and task._is_descendant_of(skip):
continue
if task.task_spec == self:
skip = task
continue
return False
return True
def _deserialize_task(self, workflow, s_state):
assert isinstance(workflow, Workflow)
# task_spec
task_spec = workflow.get_task_spec_from_name(s_state['task_spec'])
if task_spec.name == "Root": # Don't create two roots
task = workflow.task_tree
else:
task = Task(workflow, task_spec)
# id
task.id = s_state['id']
# parent
task.parent = workflow.get_task(s_state['parent'])
# We need to add children in before deserializing child tasks so they can
# find their parent (Task.Iter uses children to traverse the hierarchy
if task.parent and task not in task.parent.children:
task.parent.children.append(task)
assert task.parent is not None or task.get_name() == 'Root'
# children
for c in s_state['children']:
self._deserialize_task(workflow, c)
# state
task._state = s_state['state']
# last_state_change
task.last_state_change = s_state['last_state_change']
# attributes
task.attributes = s_state['attributes']
# internal_attributes
task.internal_attributes = s_state['internal_attributes']
return task
def _deserialize_task(self, workflow, s_state):
assert isinstance(workflow, Workflow), ("The workflow parameter did "
"not receive a Workflow "
"object. Instead, it got a "
"'%s'" %
workflow.__class__)
# task_spec
task_spec = workflow.get_task_spec_from_name(s_state['task_spec'])
if task_spec.name == "Root": # Don't create two roots
task = workflow.task_tree
else:
task = Task(workflow, task_spec)
# id
task.id = s_state['id']
# parent
task.parent = workflow.get_task(s_state['parent'])
# We need to add children in before deserializing child tasks so they can
# find their parent (Task.Iter uses children to traverse the hierarchy
if task.parent and task not in task.parent.children:
task.parent.children.append(task)
#assert task.parent is not None or task.get_name() == 'Root', ("Task "
# "'%s' parent is None" % task.get_name())
# children
for c in s_state['children']:
self._deserialize_task(workflow, c)
# state
task._state = s_state['state']
# last_state_change
task.last_state_change = s_state['last_state_change']
# attributes
task.attributes = s_state['attributes']
# internal_attributes
task.internal_attributes = s_state['internal_attributes']
return task