openstack/deb-python-taskflow
Code Issues Proposed changes

Add flow disassociation and adjust the assocate path

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This commit is contained in:
Joshua Harlow
2013-05-29 11:28:01 -07:00
parent b2ad872065
commit 75cd2ce5cb
1 changed files with 23 additions and 1 deletions
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24
taskflow/job.py
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@@ -143,16 +143,38 @@ class Job(object):
return (True, task_details.metadata['result'])
return (False, None)
def associate(self, flow):
def associate(self, flow, parents=True):
"""Attachs the needed resumption and state change tracking listeners
to the given workflow so that the workflow can be resumed/tracked
using the jobs components."""
if self._task_listener not in flow.task_listeners:
flow.task_listeners.append(self._task_listener)
if self._workflow_listener not in flow.listeners:
flow.listeners.append(self._workflow_listener)
flow.result_fetcher = self._task_result_fetcher
# Associate the parents as well (if desired)
if parents and flow.parents:
for p in flow.parents:
self.associate(p, parents)
def disassociate(self, flow, parents=True):
"""Detaches the needed resumption and state change tracking listeners
from the given workflow."""
if self._task_listener in flow.task_listeners:
flow.task_listeners.remove(self._task_listener)
if self._workflow_listener in flow.listeners:
flow.listeners.remove(self._workflow_listener)
if flow.result_fetcher is self._task_result_fetcher:
flow.result_fetcher = None
# Disassociate from the flows parents (if desired)
if parents and flow.parents:
for p in flow.parents:
self.disassociate(p, parents)
@property
def logbook(self):
"""Fetches (or creates) a logbook entry for this job."""