annotate sat/tools/async_trigger.py @ 3661:cbb988a6f507

merge bookmark `@`
author Goffi <goffi@goffi.org>
date Wed, 08 Sep 2021 11:20:37 +0200
parents 7f5bf108961a
children e14847bf65c0
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1 #!/usr/bin/env python3
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2
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 """Misc usefull classes"""
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21
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22 from . import trigger as sync_trigger
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23 from . import utils
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24 from twisted.internet import defer
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25
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26 class TriggerManager(sync_trigger.TriggerManager):
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27 """This is a TriggerManager with an new asyncPoint method"""
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29 @defer.inlineCallbacks
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30 def asyncPoint(self, point_name, *args, **kwargs):
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31 """This put a trigger point with potentially async Deferred
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32
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33 All the triggers for that point will be run
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34 @param point_name: name of the trigger point
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35 @param *args: args to transmit to trigger
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36 @param *kwargs: kwargs to transmit to trigger
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37 if "triggers_no_cancel" is present, it will be popped out
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38 when set to True, this argument don't let triggers stop
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39 the workflow
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40 @return D(bool): True if the action must be continued, False else
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41 """
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42 if point_name not in self.__triggers:
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43 defer.returnValue(True)
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45 can_cancel = not kwargs.pop('triggers_no_cancel', False)
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47 for priority, trigger in self.__triggers[point_name]:
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48 try:
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49 cont = yield utils.asDeferred(trigger, *args, **kwargs)
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50 if can_cancel and not cont:
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51 defer.returnValue(False)
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52 except sync_trigger.SkipOtherTriggers:
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53 break
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54 defer.returnValue(True)
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56 async def asyncReturnPoint(self, point_name, *args, **kwargs):
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57 """Async version of returnPoint"""
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58 if point_name not in self.__triggers:
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59 return True
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61 for priority, trigger in self.__triggers[point_name]:
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62 try:
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63 cont, ret_value = await utils.asDeferred(trigger, *args, **kwargs)
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64 if not cont:
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65 return False, ret_value
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66 except sync_trigger.SkipOtherTriggers:
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67 break
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68 return True, None
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