diff options
| -rw-r--r-- | obmc/dbuslib/bindings.py | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/obmc/dbuslib/bindings.py b/obmc/dbuslib/bindings.py index 006270b..ea0da5c 100644 --- a/obmc/dbuslib/bindings.py +++ b/obmc/dbuslib/bindings.py @@ -123,6 +123,41 @@ class DbusProperties(dbus.service.Object): pass +def add_interfaces_to_class(cls, ifaces): + """ + The built-in Introspect method in dbus-python doesn't find + interfaces if the @method or @signal decorators aren't used + (property-only interfaces). Use this method on a class + derived from dbus.service.Object to help the dbus-python provided + Introspect method find these interfaces. + + Arguments: + cls -- The dbus.service.Object superclass to add interfaces to. + ifaces -- The property-only interfaces to add to the class. + """ + + for iface in ifaces: + class_table_key = '{}.{}'.format(cls.__module__, cls.__name__) + cls._dbus_class_table[class_table_key].setdefault(iface, {}) + + +def add_interfaces(ifaces): + """ + A class decorator for add_interfaces_to_class. + """ + + def decorator(cls): + undecorated = cls.__init__ + + def ctor(obj, *a, **kw): + undecorated(obj, *a, **kw) + add_interfaces_to_class(cls, ifaces) + + cls.__init__ = ctor + return cls + return decorator + + class DbusObjectManager(dbus.service.Object): def __init__(self, **kw): super(DbusObjectManager, self).__init__(**kw) |
