First prototype

main.py

+import sys
+import os
+import dbus
+import dbus.service
+import dbus.glib
+import gobject
+
+import settingsd.config
+
+
+if __name__ == "__main__" :
+	# future config init here
+
+	bus_name = dbus.service.BusName(settingsd.config.GlobalConfig["service_name"], bus = dbus.SessionBus())
+
+	main_parent_class = type("MainParent", (object,), {})
+	setattr(main_parent_class, "busName", lambda self : bus_name)
+	main_parent = main_parent_class()
+
+	sys.path.append("plugins")
+	services_list = []
+	for module_name in [ item[:-3] for item in os.listdir("plugins") if item.endswith(".py") ] :
+		services_list.append(__import__(module_name, globals(), locals(), [""]).Service(main_parent))
+		services_list[-1].initService()
+		print "Initialized \"%s\"" % (module_name)
+
+	main_loop = gobject.MainLoop()
+	try :
+		main_loop.run()
+	except KeyboardInterrupt :
+		for services_list_item in services_list :
+			services_list_item.closeService()
+			print "Closed \"%s\"" % (module_name)
+		main_loop.quit()
+

plugins/hello.py

+import sys
+sys.path.append("..") # path hook
+import settingsd.service
+
+
+class Hello(settingsd.service.NativeObject) :
+	@settingsd.service.nativeMethod("test")
+	def hello(self) :
+		return "Hello, World!"
+
+	@settingsd.service.nativeMethod("test")
+	def echo(self, text) :
+		return text
+
+	@settingsd.service.customMethod("org.liksys.settingsd")
+	def dump(self) :
+		return str(self)
+
+class Service(settingsd.service.Service) :
+	def initService(self) :
+		self.addObject(Hello("hello", self))
+
+	def closeService(self) :
+		pass
+

settingsd/config.py

+GlobalConfig = {
+	"service_name" : "org.etersoft.settingsd",
+	"service_path" : "/org/etersoft/settingsd"
+}
+

settingsd/service.py

+import dbus
+import dbus.service
+import dbus.glib
+import abc
+
+import config
+
+
+class Service(object) :
+	__metaclass__ = abc.ABCMeta
+
+	def __init__(self, parent) :
+		object.__init__(self)
+
+		self.__parent = parent
+
+		self.__objects_list = []
+
+	@abc.abstractmethod
+	def initService(self) :
+		pass
+
+	@abc.abstractmethod
+	def closeService(self) :
+		pass
+
+	def addObject(self, object) :
+		self.__objects_list.append(object)
+
+	def objectsList(self) :
+		return self.__objects_list
+
+	def parent(self) :
+		return self.__parent
+
+	def busName(self) :
+		return self.__parent.busName()
+
+
+class CustomObject(dbus.service.Object) :
+	def __init__(self, object_path, parent) :
+		dbus.service.Object.__init__(self, parent.busName(), object_path)
+
+		self.__object_path = object_path
+		self.__parent = parent
+
+	def parent(self) :
+		return self.__parent
+
+	def busName(self) :
+		return self.__parent.busName()
+
+	def objectPath(self) :
+		return self.__object_path
+
+class NativeObject(CustomObject) :
+	def __init__(self, object_path, parent) :
+		CustomObject.__init__(self, "%s/%s" % (config.GlobalConfig["service_path"], object_path), parent)
+
+
+def customMethod(interface_name) :
+	def decorator(function) :
+		return dbus.service.method(interface_name)(function)
+	return decorator
+
+def nativeMethod(interface_name) :
+	def decorator(function) :
+		return customMethod("%s.%s" % (config.GlobalConfig["service_name"], interface_name))(function)
+	return decorator
+