Mercurial > libervia-backend
annotate sat/tools/async_trigger.py @ 2862:b2e898384c25
quick_frontend (app): progress callbacks handling:
in addition to listeners, a frontend can now register progression callback and errback which are called when the given progressing action is finished.
Those callbacks can be registered using registerProgressCbs or specified in actionManager.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Wed, 20 Mar 2019 09:08:47 +0100 |
| parents | 003b8b4b56a7 |
| children | ab2696e34d29 |
| rev | line source |
|---|---|
| 2645 | 1 #!/usr/bin/env python2 |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 # SAT: a jabber client | |
| 2771 | 5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org) |
| 2645 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 """Misc usefull classes""" | |
| 21 | |
| 22 from sat.tools import trigger as sync_trigger | |
| 23 from twisted.internet import defer | |
| 24 | |
| 25 class TriggerManager(sync_trigger.TriggerManager): | |
| 26 """This is a TriggerManager with an new asyncPoint method""" | |
| 27 | |
| 28 @defer.inlineCallbacks | |
| 29 def asyncPoint(self, point_name, *args, **kwargs): | |
| 30 """This put a trigger point with potentially async Deferred | |
| 31 | |
| 32 All the triggers for that point will be run | |
| 33 @param point_name: name of the trigger point | |
|
2650
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
34 @param *args: args to transmit to trigger |
|
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
35 @param *kwargs: kwargs to transmit to trigger |
|
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
36 if "triggers_no_cancel" is present, it will be popped out |
|
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
37 when set to True, this argument don't let triggers stop |
|
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
38 the workflow |
| 2645 | 39 @return D(bool): True if the action must be continued, False else |
| 40 """ | |
| 41 if point_name not in self.__triggers: | |
| 42 defer.returnValue(True) | |
| 43 | |
|
2650
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
44 can_cancel = not kwargs.pop('triggers_no_cancel', False) |
|
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
45 |
| 2645 | 46 for priority, trigger in self.__triggers[point_name]: |
| 47 try: | |
| 48 cont = yield trigger(*args, **kwargs) | |
|
2650
3a8e7ec4648a
tools (trigger, async_trigger): added no_cancel argument to point and asyncPoint when a trigger must not be cancellable
Goffi <goffi@goffi.org>
parents:
2645
diff
changeset
|
49 if can_cancel and not cont: |
| 2645 | 50 defer.returnValue(False) |
| 51 except sync_trigger.SkipOtherTriggers: | |
| 52 break | |
| 53 defer.returnValue(True) |