Mercurial > libervia-backend
annotate sat/bridge/bridge_constructor/constructors/dbus/constructor.py @ 2786:be8405795e09
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sat, 19 Jan 2019 11:39:02 +0100 |
| parents | 003b8b4b56a7 |
| children | ab2696e34d29 |
| rev | line source |
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| 2085 | 1 #!/usr/bin/env python2 |
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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 } |
| 2085 | 51 |
| 52 def core_completion_signal(self, completion, function, default, arg_doc, async_): | |
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53 completion["category"] = completion["category"].upper() |
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54 completion["body"] = ( |
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55 "pass" |
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56 if not self.args.debug |
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57 else 'log.debug ("{}")'.format(completion["name"]) |
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58 ) |
| 2085 | 59 |
| 60 def core_completion_method(self, completion, function, default, arg_doc, async_): | |
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61 completion.update( |
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62 { |
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63 "debug": "" |
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64 if not self.args.debug |
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65 else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "), |
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66 "args_result": self.getArguments( |
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67 function["sig_in"], name=arg_doc, unicode_protect=self.args.unicode |
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68 ), |
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69 "async_comma": ", " if async_ and function["sig_in"] else "", |
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70 "async_args_def": "callback=None, errback=None" if async_ else "", |
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71 "async_args_call": "callback=callback, errback=errback" if async_ else "", |
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72 "async_callbacks": "('callback', 'errback')" if async_ else "None", |
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73 "category": completion["category"].upper(), |
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74 } |
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75 ) |
| 2085 | 76 |
| 77 def frontend_completion_method(self, completion, function, default, arg_doc, async_): | |
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78 completion.update( |
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79 { |
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80 # 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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81 "debug": "" |
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82 if not self.args.debug |
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83 else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "), |
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84 "args_result": self.getArguments(function["sig_in"], name=arg_doc), |
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85 "async_args": "callback=None, errback=None", |
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86 "async_comma": ", " if function["sig_in"] else "", |
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87 "error_handler": """if callback is None: |
| 2085 | 88 error_handler = None |
| 89 else: | |
| 90 if errback is None: | |
| 91 errback = log.error | |
| 92 error_handler = lambda err:errback(dbus_to_bridge_exception(err)) | |
| 93 """, | |
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94 } |
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95 ) |
| 2085 | 96 if async_: |
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97 completion["blocking_call"] = "" |
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98 completion[ |
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99 "async_args_result" |
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100 ] = "timeout=const_TIMEOUT, reply_handler=callback, error_handler=error_handler" |
| 2085 | 101 else: |
| 102 # 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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103 completion[ |
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104 "blocking_call" |
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105 ] = """kwargs={} |
| 2085 | 106 if callback is not None: |
| 107 kwargs['timeout'] = const_TIMEOUT | |
| 108 kwargs['reply_handler'] = callback | |
| 109 kwargs['error_handler'] = error_handler | |
| 110 """ | |
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111 completion["async_args_result"] = "**kwargs" |
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112 result = ( |
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113 "self.db_%(category)s_iface.%(name)s(%(args_result)s%(async_comma)s%(async_args_result)s)" |
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114 % completion |
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115 ) |
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116 completion["result"] = ( |
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117 "unicode(%s)" if self.args.unicode and function["sig_out"] == "s" else "%s" |
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118 ) % result |