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annotate sat/bridge/bridge_constructor/constructors/pb/pb_core_template.py @ 2562:26edcf3a30eb

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core, setup: huge cleaning: - moved directories from src and frontends/src to sat and sat_frontends, which is the recommanded naming convention - move twisted directory to root - removed all hacks from setup.py, and added missing dependencies, it is now clean - use https URL for website in setup.py - removed "Environment :: X11 Applications :: GTK", as wix is deprecated and removed - renamed sat.sh to sat and fixed its installation - added python_requires to specify Python version needed - replaced glib2reactor which use deprecated code by gtk3reactor sat can now be installed directly from virtualenv without using --system-site-packages anymore \o/
author Goffi <goffi@goffi.org>
date Mon, 02 Apr 2018 19:44:50 +0200
parents src/bridge/bridge_constructor/constructors/pb/pb_core_template.py@0046283a285d
children 56f94936df1e
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1 #!/usr/bin/env python2
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2 #-*- coding: utf-8 -*-
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3
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
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6
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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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20
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21 from sat.core.log import getLogger
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22 log = getLogger(__name__)
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23 from twisted.spread import jelly, pb
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24 from twisted.internet import reactor
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25
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26
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27 ## jelly hack
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28 # we monkey patch jelly to handle namedtuple
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29 ori_jelly = jelly._Jellier.jelly
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30
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31 def fixed_jelly(self, obj):
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32 """this method fix handling of namedtuple"""
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33 if isinstance(obj, tuple) and not obj is tuple:
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34 obj = tuple(obj)
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35 return ori_jelly(self, obj)
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36
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37 jelly._Jellier.jelly = fixed_jelly
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38
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39
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40 class PBRoot(pb.Root):
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41
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42 def __init__(self):
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43 self.signals_handlers = []
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44
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45 def remote_initBridge(self, signals_handler):
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46 self.signals_handlers.append(signals_handler)
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47 log.info(u"registered signal handler")
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48
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49 def sendSignalEb(self, failure, signal_name):
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50 log.error(u"Error while sending signal {name}: {msg}".format(
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51 name = signal_name,
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52 msg = failure,
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53 ))
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54
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55 def sendSignal(self, name, args, kwargs):
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56 to_remove = []
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57 for handler in self.signals_handlers:
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58 try:
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59 d = handler.callRemote(name, *args, **kwargs)
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60 except pb.DeadReferenceError:
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61 to_remove.append(handler)
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62 else:
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63 d.addErrback(self.sendSignalEb, name)
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64 if to_remove:
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65 for handler in to_remove:
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66 log.debug(u"Removing signal handler for dead frontend")
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67 self.signals_handlers.remove(handler)
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68
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69 ##METHODS_PART##
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70
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71
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72 class Bridge(object):
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73
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74 def __init__(self):
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75 log.info("Init Perspective Broker...")
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76 self.root = PBRoot()
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77 reactor.listenTCP(8789, pb.PBServerFactory(self.root))
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78
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79 def sendSignal(self, name, *args, **kwargs):
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80 self.root.sendSignal(name, args, kwargs)
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81
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82 def remote_initBridge(self, signals_handler):
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83 self.signals_handlers.append(signals_handler)
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84 log.info(u"registered signal handler")
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85
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86 def register_method(self, name, callback):
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87 log.debug("registering PB bridge method [%s]" % name)
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88 setattr(self.root, "remote_"+name, callback)
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89 # self.root.register_method(name, callback)
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90
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91 def addMethod(self, name, int_suffix, in_sign, out_sign, method, async=False, doc={}):
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92 """Dynamically add a method to PB Bridge"""
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93 #FIXME: doc parameter is kept only temporary, the time to remove it from calls
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94 log.debug("Adding method {name} to PB bridge".format(name=name))
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95 self.register_method(name, method)
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96
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97 def addSignal(self, name, int_suffix, signature, doc={}):
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98 log.debug("Adding signal {name} to PB bridge".format(name=name))
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99 setattr(self, name, lambda *args, **kwargs: self.sendSignal(name, *args, **kwargs))
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100
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101 ##SIGNALS_PART##