2012/5/9 Christophe Guéret <c.d.m.gue...@vu.nl>: > Dear all, > > A part of the project "SemanticXO" concerns the implementation of an > alternative Journal implementation making use of the triple store backend. > Triple store are data bases optimised to store factual information in the > form of statements linking a subject, a property and a value. This makes > them particularly fit to store key/value metadata, such as the one the > Journal uses. The feature proposal for SemanticXO gives more detailled > about what this is about: http://wiki.sugarlabs.org/go/Features/Semantic_Web > > I've just finished removing a couple of bugs and would be interested in > getting a first round of feedback. > The installation procedure is not super convenient but should be manageable > anyway: http://wiki.sugarlabs.org/go/Features/Semantic_Web/Testing > > The code is based on two parts: > * a module "common" that allows to store arbitrary data in the triple store > * a module "datastore" which uses "common" to store the data from the > Journal > I'm now working on implementing other usage examples for "common". In the > Journal, the most visible change is the possibility to browse the content > through the SPARQL interface of the triple store. This means it is possible, > and rather easy, to gather statistics about the activities performed in a > class room or do backup of the metadata without having to interupt any other > activity. > > Looking forward to your feedback, cheers, > Christophe > > > _______________________________________________ > Sugar-devel mailing list > Sugar-devel@lists.sugarlabs.org > http://lists.sugarlabs.org/listinfo/sugar-devel >
Hi, Followed the steps in the wiki page. At the last step, sugar-emulator crashes when launching. This is running sugar 0.96.1 in Fedora 17. I renamed ~/.sugar to another name before launching sugar-emulator: ** (process:21449): WARNING **: Trying to register gtype 'GMountMountFlags' as enum when in fact it is of type 'GFlags' ** (process:21449): WARNING **: Trying to register gtype 'GDriveStartFlags' as enum when in fact it is of type 'GFlags' ** (process:21449): WARNING **: Trying to register gtype 'GSocketMsgFlags' as enum when in fact it is of type 'GFlags' Gtk-Message: Failed to load module "pk-gtk-module" GNOME_KEYRING_CONTROL=/run/user/jobezone/keyring-rHyu00 GNOME_KEYRING_PID=21469 ** (process:21456): WARNING **: Trying to register gtype 'GMountMountFlags' as enum when in fact it is of type 'GFlags' ** (process:21456): WARNING **: Trying to register gtype 'GDriveStartFlags' as enum when in fact it is of type 'GFlags' ** (process:21456): WARNING **: Trying to register gtype 'GSocketMsgFlags' as enum when in fact it is of type 'GFlags' ** Message: pygobject_register_sinkfunc is deprecated (HippoCanvasBox) Traceback (most recent call last): File "/usr/bin/sugar-session", line 289, in <module> main() File "/usr/bin/sugar-session", line 228, in main from jarabe.desktop import homewindow File "/usr/lib/python2.7/site-packages/jarabe/desktop/homewindow.py", line 25, in <module> from jarabe.desktop.meshbox import MeshBox File "/usr/lib/python2.7/site-packages/jarabe/desktop/meshbox.py", line 48, in <module> from jarabe.journal import misc File "/usr/lib/python2.7/site-packages/jarabe/journal/misc.py", line 26, in <module> from sugar.activity import activityfactory File "/usr/lib/python2.7/site-packages/sugar/activity/activityfactory.py", line 34, in <module> from sugar.datastore import datastore File "/usr/lib/python2.7/site-packages/sugar/datastore/datastore.py", line 77, in <module> _get_data_store() File "/usr/lib/python2.7/site-packages/sugar/datastore/datastore.py", line 51, in _get_data_store DS_DBUS_PATH), File "/usr/lib/python2.7/site-packages/dbus/bus.py", line 244, in get_object follow_name_owner_changes=follow_name_owner_changes) File "/usr/lib/python2.7/site-packages/dbus/proxies.py", line 241, in __init__ self._named_service = conn.activate_name_owner(bus_name) File "/usr/lib/python2.7/site-packages/dbus/bus.py", line 183, in activate_name_owner self.start_service_by_name(bus_name) File "/usr/lib/python2.7/site-packages/dbus/bus.py", line 281, in start_service_by_name 'su', (bus_name, flags))) File "/usr/lib/python2.7/site-packages/dbus/connection.py", line 630, in call_blocking message, timeout) dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Process /usr/bin/datastore-service exited with status 1 g_dbus_connection_real_closed: Remote peer vanished with error: Underlying GIOStream returned 0 bytes on an async read (g-io-error-quark, 0). Exiting. Aviso do gestor de janelas: Erro IO fatal 11 (Resource temporarily unavailable) no ecrã ':30'. This last line translates to: TRANS:window manager warning: [...] in screen':30'.] Eduardo _______________________________________________ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel