Mercurial > libervia-backend

annotate src/bridge/bridge_constructor/constructors/pb/pb_frontend_template.py @ 2186:9061c7247964

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
jp (std output): force unicode on simple output
author Goffi <goffi@goffi.org>
date Sun, 12 Mar 2017 23:29:09 +0100
parents 5e79ba00c1e2
children 8b37a62336c3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2092
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
1 #!/usr/bin/env python2
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
2 #-*- coding: utf-8 -*-
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
3
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
4 # SAT communication bridge
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
5 # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
6
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
7 # This program is free software: you can redistribute it and/or modify
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
8 # it under the terms of the GNU Affero General Public License as published by
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
9 # the Free Software Foundation, either version 3 of the License, or
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
10 # (at your option) any later version.
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
11
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
12 # This program is distributed in the hope that it will be useful,
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
15 # GNU Affero General Public License for more details.
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
16
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
17 # You should have received a copy of the GNU Affero General Public License
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
19
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
20 from sat.core.log import getLogger
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
21 log = getLogger(__name__)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
22 from sat.core import exceptions
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
23 from twisted.spread import pb
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
24 from twisted.internet import reactor
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
25
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
26
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
27 class SignalsHandler(pb.Referenceable):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
28
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
29 def __getattr__(self, name):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
30 if name.startswith("remote_"):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
31 log.debug(u"calling an unregistered signal: {name}".format(
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
32 name = name[7:]))
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
33 return lambda *args, **kwargs: None
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
34
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
35 else:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
36 raise AttributeError(name)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
37
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
38 def register_signal(self, name, handler, iface="core"):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
39 log.debug("registering signal {name}".format(name=name))
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
40 method_name = "remote_" + name
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
41 try:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
42 self.__getattribute__(self, method_name)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
43 except AttributeError:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
44 pass
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
45 else:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
46 raise exceptions.InternalError(u"{name} signal handler has been registered twice".format(
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
47 name = method_name))
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
48 setattr(self, method_name, handler)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
49
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
50
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
51 class Bridge(object):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
52
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
53 def __init__(self):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
54 self.signals_handler = SignalsHandler()
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
55
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
56 def __getattr__(self, name):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
57 return lambda *args, **kwargs: self.call(name, args, kwargs)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
58
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
59 def remoteCallback(self, result, callback):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
60 """call callback with argument or None
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
61
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
62 if result is not None not argument is used,
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
63 else result is used as argument
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
64 @param result: remote call result
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
65 @param callback(callable): method to call on result
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
66 """
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
67 if result is None:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
68 callback()
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
69 else:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
70 callback(result)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
71
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
72 def call(self, name, args, kwargs):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
73 """call a remote method
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
74
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
75 @param name(str): name of the bridge method
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
76 @param args(list): arguments
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
77 may contain callback and errback as last 2 items
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
78 @param kwargs(dict): keyword arguments
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
79 may contain callback and errback
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
80 """
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
81 callback = errback = None
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
82 if kwargs:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
83 try:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
84 callback = kwargs.pop('callback')
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
85 except KeyError:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
86 pass
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
87 try:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
88 errback = kwargs.pop('errback')
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
89 except KeyError:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
90 pass
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
91 elif len(args) >= 2 and callable(args[-1]) and callable(args[-2]):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
92 errback = args.pop()
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
93 callback = args.pop()
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
94 d = self.root.callRemote(name, *args, **kwargs)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
95 if callback is not None:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
96 d.addCallback(self.remoteCallback, callback)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
97 if errback is not None:
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
98 d.addErrback(errback)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
99
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
100 def _initBridgeEb(self, failure):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
101 log.error(u"Can't init bridge: {msg}".format(msg=failure))
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
102
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
103 def _set_root(self, root):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
104 """set remote root object
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
105
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
106 bridge will then be initialised
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
107 """
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
108 self.root = root
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
109 d = root.callRemote("initBridge", self.signals_handler)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
110 d.addErrback(self._initBridgeEb)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
111 return d
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
112
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
113 def _generic_errback(self, failure):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
114 log.error(u"bridge failure: {}".format(failure))
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
115
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
116 def bridgeConnect(self, callback, errback):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
117 factory = pb.PBClientFactory()
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
118 reactor.connectTCP("localhost", 8789, factory)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
119 d = factory.getRootObject()
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
120 d.addCallback(self._set_root)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
121 d.addCallback(lambda dummy: callback())
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
122 d.addErrback(errback)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
123
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
124 def register_signal(self, functionName, handler, iface="core"):
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
125 self.signals_handler.register_signal(functionName, handler, iface)
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
126
5e79ba00c1e2 bridbe(pb): Perspective Broker bridge, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
127 ##METHODS_PART##