Mercurial > libervia-backend

annotate sat/tools/trigger.py @ 3073:daed12db819d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
install (setup): added Python 3.8 classifier
author Goffi <goffi@goffi.org>
date Fri, 15 Nov 2019 17:55:39 +0100
parents ab2696e34d29
children 9d0df638c8b4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
1 #!/usr/bin/env python3
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
2 # -*- coding: utf-8 -*-
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
3
609
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
4 # SAT: a jabber client
2771
003b8b4b56a7 date update
Goffi <goffi@goffi.org>
parents: 2650
diff changeset
5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
6
609
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
7 # This program is free software: you can redistribute it and/or modify
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
8 # it under the terms of the GNU Affero General Public License as published by
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
9 # the Free Software Foundation, either version 3 of the License, or
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
10 # (at your option) any later version.
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
11
609
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
12 # This program is distributed in the hope that it will be useful,
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
15 # GNU Affero General Public License for more details.
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
16
609
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
17 # You should have received a copy of the GNU Affero General Public License
84a6e83157c2 fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents: 590
diff changeset
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
19
590
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
20 """Misc usefull classes"""
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
21
771
bfabeedbf32e core: i18n refactoring:
Goffi <goffi@goffi.org>
parents: 742
diff changeset
22 from sat.core.i18n import _
993
301b342c697a core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents: 876
diff changeset
23 from sat.core.log import getLogger
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
24
993
301b342c697a core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents: 876
diff changeset
25 log = getLogger(__name__)
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
26
742
03744d9ebc13 plugin XEP-0033: implementation of the addressing feature:
souliane <souliane@mailoo.org>
parents: 741
diff changeset
27
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
28 class TriggerException(Exception):
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
29 pass
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
30
590
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
31
525
5431136501ab core: Triggers can now frobid other triggers execution
Goffi <goffi@goffi.org>
parents: 516
diff changeset
32 class SkipOtherTriggers(Exception):
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
33 """ Exception to raise if normal behaviour must be followed instead of following triggers list """
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
34
525
5431136501ab core: Triggers can now frobid other triggers execution
Goffi <goffi@goffi.org>
parents: 516
diff changeset
35 pass
5431136501ab core: Triggers can now frobid other triggers execution
Goffi <goffi@goffi.org>
parents: 516
diff changeset
36
590
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
37
588
beaf6bec2fcd Remove every old-style class.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 572
diff changeset
38 class TriggerManager(object):
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
39 """This class manage triggers: code which interact to change the behaviour of SàT"""
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
40
1347
ba41a81d14c2 frontends (QuickApp), tools (TriggerManager): frontends can also use triggers + add those for sending and receiving a message
souliane <souliane@mailoo.org>
parents: 993
diff changeset
41 try: # FIXME: to be removed when a better solution is found
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
42 MIN_PRIORITY = float("-inf")
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
43 MAX_PRIORITY = float("+inf")
1347
ba41a81d14c2 frontends (QuickApp), tools (TriggerManager): frontends can also use triggers + add those for sending and receiving a message
souliane <souliane@mailoo.org>
parents: 993
diff changeset
44 except: # XXX: Pyjamas will bug if you specify ValueError here
ba41a81d14c2 frontends (QuickApp), tools (TriggerManager): frontends can also use triggers + add those for sending and receiving a message
souliane <souliane@mailoo.org>
parents: 993
diff changeset
45 # Pyjamas uses the JS Float class
ba41a81d14c2 frontends (QuickApp), tools (TriggerManager): frontends can also use triggers + add those for sending and receiving a message
souliane <souliane@mailoo.org>
parents: 993
diff changeset
46 MIN_PRIORITY = Number.NEGATIVE_INFINITY
ba41a81d14c2 frontends (QuickApp), tools (TriggerManager): frontends can also use triggers + add those for sending and receiving a message
souliane <souliane@mailoo.org>
parents: 993
diff changeset
47 MAX_PRIORITY = Number.POSITIVE_INFINITY
741
00318e60a06a core (tools): set min and max priorities for triggers and warn if several triggers have the same not null priority
souliane <souliane@mailoo.org>
parents: 609
diff changeset
48
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
49 def __init__(self):
590
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
50 self.__triggers = {}
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
51
516
7ee15fbe8c08 core: added priority management in triggers
Goffi <goffi@goffi.org>
parents: 501
diff changeset
52 def add(self, point_name, callback, priority=0):
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
53 """Add a trigger to a point
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
54
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
55 @param point_name: name of the point when the trigger should be run
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
56 @param callback: method to call at the trigger point
590
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
57 @param priority: callback will be called in priority order, biggest
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
58 first
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
59 """
590
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
60 if point_name not in self.__triggers:
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
61 self.__triggers[point_name] = []
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
62 if priority != 0 and priority in [
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
63 trigger_tuple[0] for trigger_tuple in self.__triggers[point_name]
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
64 ]:
876
65bf1bc70f6b tools, plugin XEP-0077: small fixes
souliane <souliane@mailoo.org>
parents: 811
diff changeset
65 if priority in (self.MIN_PRIORITY, self.MAX_PRIORITY):
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
66 log.warning(_("There is already a bound priority [%s]") % point_name)
741
00318e60a06a core (tools): set min and max priorities for triggers and warn if several triggers have the same not null priority
souliane <souliane@mailoo.org>
parents: 609
diff changeset
67 else:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
68 log.debug(
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
69 _("There is already a trigger with the same priority [%s]")
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
70 % point_name
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
71 )
516
7ee15fbe8c08 core: added priority management in triggers
Goffi <goffi@goffi.org>
parents: 501
diff changeset
72 self.__triggers[point_name].append((priority, callback))
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
73 self.__triggers[point_name].sort(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
74 key=lambda trigger_tuple: trigger_tuple[0], reverse=True
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
75 )
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
76
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
77 def remove(self, point_name, callback):
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
78 """Remove a trigger from a point
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
79
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
80 @param point_name: name of the point when the trigger should be run
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
81 @param callback: method to remove, must exists in the trigger point
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
82 """
516
7ee15fbe8c08 core: added priority management in triggers
Goffi <goffi@goffi.org>
parents: 501
diff changeset
83 for trigger_tuple in self.__triggers[point_name]:
7ee15fbe8c08 core: added priority management in triggers
Goffi <goffi@goffi.org>
parents: 501
diff changeset
84 if trigger_tuple[1] == callback:
7ee15fbe8c08 core: added priority management in triggers
Goffi <goffi@goffi.org>
parents: 501
diff changeset
85 self.__triggers[point_name].remove(trigger_tuple)
7ee15fbe8c08 core: added priority management in triggers
Goffi <goffi@goffi.org>
parents: 501
diff changeset
86 return
7ee15fbe8c08 core: added priority management in triggers
Goffi <goffi@goffi.org>
parents: 501
diff changeset
87 raise TriggerException("Trying to remove an unexisting trigger")
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
88
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
89 def point(self, point_name, *args, **kwargs):
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
90 """This put a trigger point
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
91
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
92 All the triggers for that point will be run
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
93 @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: 2624
diff changeset
94 @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: 2624
diff changeset
95 @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: 2624
diff changeset
96 if "triggers_no_cancel" is present, it will be popup 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: 2624
diff changeset
97 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: 2624
diff changeset
98 the workflow
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
99 @return: True if the action must be continued, False else
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
100 """
590
56531f9e9ac7 Fix pep8 support in src/tools.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
101 if point_name not in self.__triggers:
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
102 return True
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
103
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: 2624
diff changeset
104 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: 2624
diff changeset
105
1347
ba41a81d14c2 frontends (QuickApp), tools (TriggerManager): frontends can also use triggers + add those for sending and receiving a message
souliane <souliane@mailoo.org>
parents: 993
diff changeset
106 for priority, trigger in self.__triggers[point_name]:
525
5431136501ab core: Triggers can now frobid other triggers execution
Goffi <goffi@goffi.org>
parents: 516
diff changeset
107 try:
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: 2624
diff changeset
108 if not trigger(*args, **kwargs) and can_cancel:
525
5431136501ab core: Triggers can now frobid other triggers execution
Goffi <goffi@goffi.org>
parents: 516
diff changeset
109 return False
5431136501ab core: Triggers can now frobid other triggers execution
Goffi <goffi@goffi.org>
parents: 516
diff changeset
110 except SkipOtherTriggers:
5431136501ab core: Triggers can now frobid other triggers execution
Goffi <goffi@goffi.org>
parents: 516
diff changeset
111 break
250
ad3b820651fa Tools: new misc library, Trigger management implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
112 return True
2499
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
113
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
114 def returnPoint(self, point_name, *args, **kwargs):
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
115 """Like point but trigger must return (continue, return_value)
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
116
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
117 All triggers for that point must return a tuple with 2 values:
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
118 - continue, same as for point, if False action must be finished
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
119 - return_value: value to return ONLY IF CONTINUE IS FALSE
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
120 @param point_name: name of the trigger point
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
121 @return: True if the action must be continued, False else
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
122 """
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
123
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
124 if point_name not in self.__triggers:
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
125 return True
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
126
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
127 for priority, trigger in self.__triggers[point_name]:
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
128 try:
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
129 cont, ret_value = trigger(*args, **kwargs)
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
130 if not cont:
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
131 return False, ret_value
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
132 except SkipOtherTriggers:
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
133 break
af4a38ebf52a core (trigger): new returnPoint method:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
134 return True, None