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+#!/usr/bin/env python3
+# Copyright (C) 2020, Sam Thursfield <sam@afuera.me.uk>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+
+"""Demonstrates publishing a database over DBus."""
+
+import gi
+gi.require_version('Tracker', '3.0')
+from gi.repository import Gio
+from gi.repository import GLib
+from gi.repository import Tracker
+
+import logging
+import os
+import sys
+import tempfile
+
+
+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()
+
+
+main()