Mercurial > libervia-backend
annotate sat/bridge/bridge_constructor/constructors/dbus/constructor.py @ 3120:0c29155ac68b
core: backend autoconnection:
A new Connection/autoconnect_backend param can be set for a profile or component to be
started automatically with backend. This is specially useful for components, but can be
useful for client profile too (e.g. on Android we need to start profile with backend to
get notifications, this part will come with following commits).
The new Sqlite.getIndParamValues method allows to retrieve the same parameters for all
profiles.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sat, 25 Jan 2020 21:08:32 +0100 |
| parents | 964abd07dc03 |
| children | 9d0df638c8b4 |
| rev | line source |
|---|---|
| 3028 | 1 #!/usr/bin/env python3 |
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2 # -*- coding: utf-8 -*- |
| 2085 | 3 |
| 4 # SàT: a XMPP client | |
| 2771 | 5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org) |
| 2085 | 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 from sat.bridge.bridge_constructor import base_constructor | |
| 21 | |
| 22 | |
| 23 class DbusConstructor(base_constructor.Constructor): | |
| 24 NAME = "dbus" | |
| 25 CORE_TEMPLATE = "dbus_core_template.py" | |
| 2086 | 26 CORE_DEST = "dbus_bridge.py" |
| 2085 | 27 CORE_FORMATS = { |
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28 "signals": """\ |
| 2085 | 29 @dbus.service.signal(const_INT_PREFIX+const_{category}_SUFFIX, |
| 30 signature='{sig_in}') | |
| 31 def {name}(self, {args}): | |
| 32 {body}\n""", | |
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33 "methods": """\ |
| 2085 | 34 @dbus.service.method(const_INT_PREFIX+const_{category}_SUFFIX, |
| 35 in_signature='{sig_in}', out_signature='{sig_out}', | |
| 36 async_callbacks={async_callbacks}) | |
| 37 def {name}(self, {args}{async_comma}{async_args_def}): | |
| 38 {debug}return self._callback("{name}", {args_result}{async_comma}{async_args_call})\n""", | |
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39 "signal_direct_calls": """\ |
| 2085 | 40 def {name}(self, {args}): |
| 41 self.dbus_bridge.{name}({args})\n""", | |
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42 } |
| 2085 | 43 |
| 44 FRONTEND_TEMPLATE = "dbus_frontend_template.py" | |
| 45 FRONTEND_DEST = CORE_DEST | |
| 46 FRONTEND_FORMATS = { | |
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47 "methods": """\ |
| 2085 | 48 def {name}(self, {args}{async_comma}{async_args}): |
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49 {error_handler}{blocking_call}{debug}return {result}\n""", |
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50 "async_methods": """\ |
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51 def {name}(self{async_comma}{args}): |
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52 loop = asyncio.get_running_loop() |
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53 fut = loop.create_future() |
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54 reply_handler = lambda ret=None: loop.call_soon_threadsafe(fut.set_result, ret) |
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55 error_handler = lambda err: loop.call_soon_threadsafe(fut.set_exception, dbus_to_bridge_exception(err)) |
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56 self.db_{category}_iface.{name}({args_result}{async_comma}timeout=const_TIMEOUT, reply_handler=reply_handler, error_handler=error_handler) |
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57 {debug}return fut\n""", |
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58 } |
| 2085 | 59 |
| 60 def core_completion_signal(self, completion, function, default, arg_doc, async_): | |
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61 completion["category"] = completion["category"].upper() |
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62 completion["body"] = ( |
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63 "pass" |
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64 if not self.args.debug |
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65 else 'log.debug ("{}")'.format(completion["name"]) |
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66 ) |
| 2085 | 67 |
| 68 def core_completion_method(self, completion, function, default, arg_doc, async_): | |
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69 completion.update( |
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70 { |
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71 "debug": "" |
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72 if not self.args.debug |
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73 else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "), |
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74 "args_result": self.getArguments( |
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75 function["sig_in"], name=arg_doc, unicode_protect=self.args.unicode |
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76 ), |
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77 "async_comma": ", " if async_ and function["sig_in"] else "", |
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78 "async_args_def": "callback=None, errback=None" if async_ else "", |
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79 "async_args_call": "callback=callback, errback=errback" if async_ else "", |
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80 "async_callbacks": "('callback', 'errback')" if async_ else "None", |
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81 "category": completion["category"].upper(), |
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82 } |
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83 ) |
| 2085 | 84 |
| 85 def frontend_completion_method(self, completion, function, default, arg_doc, async_): | |
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86 completion.update( |
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87 { |
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88 # XXX: we can manage blocking call in the same way as async one: if callback is None the call will be blocking |
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89 "debug": "" |
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90 if not self.args.debug |
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91 else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "), |
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92 "args_result": self.getArguments(function["sig_in"], name=arg_doc), |
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93 "async_args": "callback=None, errback=None", |
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94 "async_comma": ", " if function["sig_in"] else "", |
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95 "error_handler": """if callback is None: |
| 2085 | 96 error_handler = None |
| 97 else: | |
| 98 if errback is None: | |
| 99 errback = log.error | |
| 100 error_handler = lambda err:errback(dbus_to_bridge_exception(err)) | |
| 101 """, | |
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102 } |
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103 ) |
| 2085 | 104 if async_: |
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105 completion["blocking_call"] = "" |
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106 completion[ |
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107 "async_args_result" |
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108 ] = "timeout=const_TIMEOUT, reply_handler=callback, error_handler=error_handler" |
| 2085 | 109 else: |
| 110 # XXX: To have a blocking call, we must have not reply_handler, so we test if callback exists, and add reply_handler only in this case | |
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111 completion[ |
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112 "blocking_call" |
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113 ] = """kwargs={} |
| 2085 | 114 if callback is not None: |
| 115 kwargs['timeout'] = const_TIMEOUT | |
| 116 kwargs['reply_handler'] = callback | |
| 117 kwargs['error_handler'] = error_handler | |
| 118 """ | |
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119 completion["async_args_result"] = "**kwargs" |
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120 result = ( |
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121 "self.db_%(category)s_iface.%(name)s(%(args_result)s%(async_comma)s%(async_args_result)s)" |
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122 % completion |
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123 ) |
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124 completion["result"] = ( |
| 3028 | 125 "str(%s)" if self.args.unicode and function["sig_out"] == "s" else "%s" |
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126 ) % result |