As you rightly guessed, there are some parts of the API that still have to be implemented. The things I've tested so far work fine though: launch the emulator, create some entries by using the activities and browse the content of the journal. Christophe <div class="gmail_quote">On 15 May 2012 00:09, Sascha Silbe <<a href="mailto:silbe@activitycentral.com" target="_blank">silbe@activitycentral.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="im">"=?UTF-8?Q?Christophe_Gu=C3=A9ret?=" <<a href="mailto:c.d.m.gueret@vu.nl">c.d.m.gueret@vu.nl</a>> writes: > The installation procedure is not super convenient but should be manageable > anyway: <a href="http://wiki.sugarlabs.org/go/Features/Semantic_Web/Testing" target="_blank">http://wiki.sugarlabs.org/go/Features/Semantic_Web/Testing</a> </div>I was able to install it on Debian Wheezy by using the distro packages libraptor2-dev, librasqal3-dev, librdf0-dev and python-sparqlwrapper and building redstore [1] (needs either pandoc or a fix to Makefile.am) and python-rdflib [2] from source. Adjusted file paths and python executable name in datastore/bin/datastore-service (inside semanticxo repository) and started it manually. Ran "redstore -v" in a separate xterm. Sugar (latest mainline master) starts up fine, but trying to resume a file from external storage (USB stick) fails with the following errors: shell.log: {{{ 1337031865.456647 DEBUG root: get_file asked for file with path '/media/Debian Inst/Journal backup of Sascha Silbe (XO-1) (CSN7470103E) on 13.09.2010.xmj' 1337031865.457434 DEBUG root: model.write '' '/media/Debian Inst/Journal backup of Sascha Silbe (XO-1) (CSN7470103E) on 13.09.2010.xmj' True 1337031866.380370 DEBUG root: launch bundle_id=org.sugarlabs.Restore activity_id=a6c7ee02667a96e8e51e5656d22be575506e0e24 object_id=dfe88839-6a71-4e7b-a16a-f0da7d5122ff uri=None 1337031866.521933 ERROR dbus.connection: Exception in handler for D-Bus signal: <div class="im">Traceback (most recent call last): </div> File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 214, in maybe_handle_message self._handler(*args, **kwargs) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/sugar/datastore/datastore.py", line 61, in __datastore_created_cb metadata = _get_data_store().get_properties(object_id, byte_arrays=True) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 143, in __call__ **keywords) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 630, in call_blocking message, timeout) DBusException: org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 745, in _message_cb _method_reply_return(connection, message, method_name, signature, *retval) File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 252, in _method_reply_return reply.append(signature=signature, *retval) TypeError: Don't know how which D-Bus type to use to encode type "NoneType" 1337031866.567461 ERROR dbus.connection: Exception in handler for D-Bus signal: <div class="im">Traceback (most recent call last): </div> File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 214, in maybe_handle_message self._handler(*args, **kwargs) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/model.py", line 507, in _datastore_created_cb created.send(None, object_id=object_id) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/sugar/dispatch/dispatcher.py", line 125, in send <div class="im"> response = receiver(signal=self, sender=sender, **named) </div> File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/journalactivity.py", line 259, in __model_created_cb self._check_for_bundle(kwargs['object_id']) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/journalactivity.py", line 284, in _check_for_bundle metadata = model.get(object_id) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/model.py", line 551, in get metadata = _get_datastore().get_properties(object_id, byte_arrays=True) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 143, in __call__ **keywords) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 630, in call_blocking message, timeout) DBusException: org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 745, in _message_cb _method_reply_return(connection, message, method_name, signature, *retval) File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 252, in _method_reply_return reply.append(signature=signature, *retval) TypeError: Don't know how which D-Bus type to use to encode type "NoneType" }}} org.sugarlabs.Restore-1.log: {{{ 1337031878.858341 DEBUG root: datastore.get <div class="im">Traceback (most recent call last): </div> File "/home/sascha.silbe/sugar-jhbuild/install/bin/sugar-activity", line 146, in <module> main() File "/home/sascha.silbe/sugar-jhbuild/install/bin/sugar-activity", line 141, in main instance = create_activity_instance(activity_constructor, activity_handle) File "/home/sascha.silbe/sugar-jhbuild/install/bin/sugar-activity", line 34, in create_activity_instance activity = constructor(handle) File "/home/sascha.silbe/Activities/Restore.activity/restore.py", line 532, in __init__ activity.Activity.__init__(self, handle, create_jobject=False) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/sugar/activity/activity.py", line 330, in __init__ self._jobject = datastore.get(handle.object_id) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/sugar/datastore/datastore.py", line 297, in get metadata = _get_data_store().get_properties(object_id, byte_arrays=True) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 68, in __call__ return self._proxy_method(*args, **keywords) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 143, in __call__ **keywords) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 630, in call_blocking message, timeout) dbus.exceptions.DBusException: org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 745, in _message_cb _method_reply_return(connection, message, method_name, signature, *retval) File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 252, in _method_reply_return reply.append(signature=signature, *retval) TypeError: Don't know how which D-Bus type to use to encode type "NoneType" 1337031878.921083 DEBUG root: _cleanup_temp_files 1337031878.922746 DEBUG root: _cleanup_temp_files Exited with status 1, pid 22293 data (None, <open file '<fdopen>', mode 'w' at 0x1200ee8>, 'a6c7ee02667a96e8e51e5656d22be575506e0e24') }}} Trying to view the Journal (after doing the above) also leaves entries in shell.log: {{{ 1337032015.323311 DEBUG root: Selected volume: '/'. 1337032015.328395 DEBUG root: ListView.update_with_query 1337032015.329352 DEBUG root: ListView.refresh query {'mountpoints': ['/'], 'order_by': ['+timestamp']} 1337032015.331895 DEBUG root: ListView.__model_ready_cb 0.0 <div class="im">Traceback (most recent call last): </div> File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/listmodel.py", line 214, in on_iter_next <div class="im"> if iterator >= self._result_set.length - 1: </div> File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/model.py", line 112, in get_length entries, self._total_count = self.find(query) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/model.py", line 225, in find byte_arrays=True) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 143, in __call__ **keywords) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 630, in call_blocking message, timeout) dbus.exceptions.DBusException: org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 745, in _message_cb _method_reply_return(connection, message, method_name, signature, *retval) File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 252, in _method_reply_return reply.append(signature=signature, *retval) TypeError: Don't know how which D-Bus type to use to encode type "NoneType" <div class="im"> Traceback (most recent call last): </div> File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/listmodel.py", line 113, in on_iter_n_children return self._result_set.length File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/model.py", line 112, in get_length entries, self._total_count = self.find(query) File "/home/sascha.silbe/sugar-jhbuild/install/lib/python2.7/site-packages/jarabe/journal/model.py", line 225, in find byte_arrays=True) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 143, in __call__ **keywords) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 630, in call_blocking message, timeout) dbus.exceptions.DBusException: org.freedesktop.DBus.Python.TypeError: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 745, in _message_cb _method_reply_return(connection, message, method_name, signature, *retval) File "/usr/lib/python2.7/dist-packages/dbus/service.py", line 252, in _method_reply_return reply.append(signature=signature, *retval) TypeError: Don't know how which D-Bus type to use to encode type "NoneType" }}} The sugar-datastore test suite [3] may be useful for debugging the above errors, as it smells like SemanticXO doesn't fully and correctly implement the sugar-datastore API. The "current data store DBus API" section of [4] may help a bit as well. I'm working on a real specification for the Sugar data store API, but like many other projects I can work on it only occasionally, so it'll be some time until it's finished. Sascha [1] git://<a href="http://github.com/njh/redstore.git" target="_blank">github.com/njh/redstore.git</a> [2] <a href="https://github.com/RDFLib/rdflib/tarball/3.2.1" target="_blank">https://github.com/RDFLib/rdflib/tarball/3.2.1</a> [3] <a href="https://patchwork.sugarlabs.org/patch/640/" target="_blank">https://patchwork.sugarlabs.org/patch/640/</a> [4] <a href="https://git.sugarlabs.org/versionsupport-project/mainline/blobs/raw/master/datastore-redesign.html" target="_blank">https://git.sugarlabs.org/versionsupport-project/mainline/blobs/raw/master/datastore-redesign.html</a> -- <a href="http://sascha.silbe.org/" target="_blank">http://sascha.silbe.org/</a> <a href="http://www.infra-silbe.de/" target="_blank">http://www.infra-silbe.de/</a> </blockquote></div>