def _setup_local_db(self):
# Open a local Tracker database.
try:
self._local_db = Tracker.SparqlConnection.new(
Tracker.SparqlConnectionFlags.NONE,
Gio.File.new_for_path(self.cache_directory()),
Tracker.sparql_get_ontology_nepomuk(), None)
except GLib.Error as error:
self._log.warning("Error: {}, {}".format(error.domain,
error.message))
self.notify("tracker-available")
return
# Version checks against the local version of Tracker can be done
# here, set `self._tracker_available = TrackerState.OUTDATED` if the
# checks fail.
self._local_db_available = TrackerState.AVAILABLE
self.notify("tracker-available")
def main():
logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
tmpdir = tempfile.mkdtemp(prefix='tracker-test-')
# Where the database is stored.
store_path = Gio.File.new_for_path(tmpdir)
# The database schemas.
ontology_path = Tracker.sparql_get_ontology_nepomuk()
if 'TEST_ONTOLOGIES_DIR' in os.environ:
ontology_path = Gio.File.new_for_path(
os.environ['TEST_ONTOLOGIES_DIR'])
cancellable = None
# Create a new, empty database.
conn = Tracker.SparqlConnection.new(Tracker.SparqlConnectionFlags.NONE,
store_path, ontology_path, cancellable)
bus = Gio.bus_get_sync(Gio.BusType.SESSION, cancellable)
unique_name = bus.get_unique_name()
# Publish our endpoint on DBus.
endpoint = Tracker.EndpointDBus.new(conn, bus, None, cancellable)
print(f"Exposing a Tracker endpoint on bus name {unique_name}")
print()
print(f"Try connecting over D-Bus using `tracker3 sparql`:")
print()
print(f" tracker3 sparql --dbus-service={unique_name} -q ...")
loop = GLib.MainLoop.new(None, False)
if os.environ.get('TRACKER_EXAMPLES_AUTOMATED_TEST'):
GLib.timeout_add(10, lambda *args: loop.quit(), None)
else:
print()
print(f"Press CTRL+C to quit.")
loop.run()
#!/usr/bin/python3
import gi, sys
from gi.repository import GLib, Gio, Tracker
try:
connection = Tracker.SparqlConnection.new(
Tracker.SparqlConnectionFlags.NONE,
None, # Database location, None creates it in-memory
Tracker.sparql_get_ontology_nepomuk(), # Ontology location
None)
# Create a resource containing RDF data
resource = Tracker.Resource.new(None)
resource.set_uri('rdf:type', 'nmm:MusicPiece')
# Create a batch, and add the resource to it
batch = connection.create_batch()
batch.add_resource(None, resource)
# Execute the batch to insert the data
batch.execute()
connection.close()
except Exception as e:
print('Error: {0}'.format(e))
sys.exit(-1)
