libervia-backend: src/bridge/bridge_constructor/dbus_frontend

annotate src/bridge/bridge_constructor/dbus_frontend_template.py @ 833:9bac2fc74968

memory: bug fix to not register twice frontends parameters + added some tests for param update

author	souliane <souliane@mailoo.org>
date	Fri, 07 Feb 2014 17:10:24 +0100
parents	1fe00f0c9a91
children	301b342c697a

rev	line source
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	1 #!/usr/bin/python
bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	2 #-- coding: utf-8 --
bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	3
609 84a6e83157c2 fixed licences in docstrings (they are now in comments) Goffi <goffi@goffi.org> parents: 595 diff changeset	4 # SAT communication bridge
811 1fe00f0c9a91 dates update Goffi <goffi@goffi.org> parents: 771 diff changeset	5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 Jérôme Poisson (goffi@goffi.org)
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	6
609 84a6e83157c2 fixed licences in docstrings (they are now in comments) Goffi <goffi@goffi.org> parents: 595 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: 595 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: 595 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: 595 diff changeset	10 # (at your option) any later version.
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	11
609 84a6e83157c2 fixed licences in docstrings (they are now in comments) Goffi <goffi@goffi.org> parents: 595 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: 595 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: 595 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: 595 diff changeset	15 # GNU Affero General Public License for more details.
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	16
609 84a6e83157c2 fixed licences in docstrings (they are now in comments) Goffi <goffi@goffi.org> parents: 595 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: 595 diff changeset	18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	19
771 bfabeedbf32e core: i18n refactoring: Goffi <goffi@goffi.org> parents: 723 diff changeset	20 from sat.core.i18n import _
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	21 from bridge_frontend import BridgeFrontend
535 790be337cc41 bridge: fixed D-Bus warning in frontend side of bridge Goffi <goffi@goffi.org> parents: 480 diff changeset	22 import dbus
371 3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	23 from logging import debug, error
627 d207c2186519 core, bridge, jp, quick_frontend: SàT stop more gracefully if bridge can't be initialised: Goffi <goffi@goffi.org> parents: 609 diff changeset	24 from sat.core.exceptions import BridgeExceptionNoService, BridgeInitError
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	25
535 790be337cc41 bridge: fixed D-Bus warning in frontend side of bridge Goffi <goffi@goffi.org> parents: 480 diff changeset	26 from dbus.mainloop.glib import DBusGMainLoop
790be337cc41 bridge: fixed D-Bus warning in frontend side of bridge Goffi <goffi@goffi.org> parents: 480 diff changeset	27 DBusGMainLoop(set_as_default=True)
790be337cc41 bridge: fixed D-Bus warning in frontend side of bridge Goffi <goffi@goffi.org> parents: 480 diff changeset	28
595 1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	29 const_INT_PREFIX = "org.goffi.SAT" # Interface prefix
1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	30 const_ERROR_PREFIX = const_INT_PREFIX + ".error"
359 eb9d33ba4e36 bridge: templates' constants can now be overrided Goffi <goffi@goffi.org> parents: 337 diff changeset	31 const_OBJ_PATH = '/org/goffi/SAT/bridge'
371 3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	32 const_CORE_SUFFIX = ".core"
3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	33 const_PLUGIN_SUFFIX = ".plugin"
359 eb9d33ba4e36 bridge: templates' constants can now be overrided Goffi <goffi@goffi.org> parents: 337 diff changeset	34
595 1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	35
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	36 class DBusBridgeFrontend(BridgeFrontend):
bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	37 def __init__(self):
bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	38 try:
bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	39 self.sessions_bus = dbus.SessionBus()
359 eb9d33ba4e36 bridge: templates' constants can now be overrided Goffi <goffi@goffi.org> parents: 337 diff changeset	40 self.db_object = self.sessions_bus.get_object(const_INT_PREFIX,
595 1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	41 const_OBJ_PATH)
371 3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	42 self.db_core_iface = dbus.Interface(self.db_object,
595 1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	43 dbus_interface=const_INT_PREFIX + const_CORE_SUFFIX)
371 3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	44 self.db_plugin_iface = dbus.Interface(self.db_object,
595 1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	45 dbus_interface=const_INT_PREFIX + const_PLUGIN_SUFFIX)
1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	46 except dbus.exceptions.DBusException, e:
1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	47 if e._dbus_error_name == 'org.freedesktop.DBus.Error.ServiceUnknown':
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	48 raise BridgeExceptionNoService
627 d207c2186519 core, bridge, jp, quick_frontend: SàT stop more gracefully if bridge can't be initialised: Goffi <goffi@goffi.org> parents: 609 diff changeset	49 elif e._dbus_error_name == 'org.freedesktop.DBus.Error.NotSupported':
d207c2186519 core, bridge, jp, quick_frontend: SàT stop more gracefully if bridge can't be initialised: Goffi <goffi@goffi.org> parents: 609 diff changeset	50 print u"D-Bus is not launched, please see README to see instructions on how to launch it"
d207c2186519 core, bridge, jp, quick_frontend: SàT stop more gracefully if bridge can't be initialised: Goffi <goffi@goffi.org> parents: 609 diff changeset	51 raise BridgeInitError
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	52 else:
bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	53 raise e
371 3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	54 #props = self.db_core_iface.getProperties()
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	55
371 3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	56 def register(self, functionName, handler, iface="core"):
3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	57 if iface == "core":
3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	58 self.db_core_iface.connect_to_signal(functionName, handler)
3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	59 elif iface == "plugin":
3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	60 self.db_plugin_iface.connect_to_signal(functionName, handler)
3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	61 else:
3ea41a199b36 bridge refactoring: categories are now core and plugin instead of communication and request Goffi <goffi@goffi.org> parents: 363 diff changeset	62 error(_('Unknown interface'))
267 bdcd535e179e Bridge constructor: Goffi <goffi@goffi.org> parents: diff changeset	63
568 239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	64 def __getattribute__(self, name):
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	65 """ usual __getattribute__ if the method exists, else try to find a plugin method """
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	66 try:
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	67 return object.__getattribute__(self, name)
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	68 except AttributeError:
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	69 # The attribute is not found, we try the plugin proxy to find the requested method
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	70
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	71 def getPluginMethod(args, *kwargs):
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	72 # We first check if we have an async call. We detect this in two ways:
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	73 # - if we have the 'callback' and 'errback' keyword arguments
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	74 # - or if the last two arguments are callable
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	75
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	76 async = False
587 952322b1d490 Remove trailing whitespaces. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 572 diff changeset	77
568 239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	78 if kwargs:
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	79 if 'callback' in kwargs and 'errback' in kwargs:
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	80 async = True
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	81 _callback = kwargs.pop('callback')
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	82 _errback = kwargs.pop('errback')
595 1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	83 elif len(args) >= 2 and callable(args[-1]) and callable(args[-2]):
568 239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	84 async = True
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	85 args = list(args)
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	86 _errback = args.pop()
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	87 _callback = args.pop()
587 952322b1d490 Remove trailing whitespaces. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 572 diff changeset	88
568 239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	89 method = getattr(self.db_plugin_iface, name)
587 952322b1d490 Remove trailing whitespaces. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 572 diff changeset	90
568 239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	91 if async:
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	92 kwargs['reply_handler'] = _callback
595 1f160467f5de Fix pep8 support in src/bridge. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 587 diff changeset	93 kwargs['error_handler'] = lambda err: _errback(err._dbus_error_name[len(const_ERROR_PREFIX) + 1:])
568 239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	94
239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	95 return method(args, *kwargs)
587 952322b1d490 Remove trailing whitespaces. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: 572 diff changeset	96
568 239abc5484c9 bridge: generic plugin methods handling for frontend side in D-Bus Bridge \o/ Goffi <goffi@goffi.org> parents: 562 diff changeset	97 return getPluginMethod
723 f02e2c277f0c bridge: fixed bridge_constructor Goffi <goffi@goffi.org> parents: 709 diff changeset	98 ##METHODS_PART##

Mercurial > libervia-backend

annotate src/bridge/bridge_constructor/dbus_frontend_template.py @ 833:9bac2fc74968