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/*
* Copyright (C) 2009, Nokia <ivan.frade@nokia.com>
*
* This library 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 library 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 library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <gio/gio.h>
#include <libtracker-sparql/tracker-sparql.h>
static TrackerSparqlConnection *con;
static void
handle_statement (gint subject, gint predicate)
{
gchar *query, *pred;
TrackerSparqlCursor *cursor;
query = g_strdup_printf ("SELECT tracker:uri (%d) tracker:uri(%d) {}",
subject, predicate);
cursor = tracker_sparql_connection_query (con, query, NULL, NULL);
g_free (query);
if (!cursor || !tracker_sparql_cursor_next (cursor, NULL, NULL))
return;
pred = g_strdup (tracker_sparql_cursor_get_string (cursor, 1, NULL));
query = g_strdup_printf ("SELECT ?t { <%s> <%s> ?t }",
tracker_sparql_cursor_get_string (cursor, 0, NULL),
pred);
g_object_unref (cursor);
cursor = tracker_sparql_connection_query (con, query, NULL, NULL);
g_free (query);
if (!cursor)
return;
while (tracker_sparql_cursor_next (cursor, NULL, NULL))
g_print ("\t%s = %s\n", pred, tracker_sparql_cursor_get_string (cursor, 0, NULL));
g_print ("\n");
g_free (pred);
g_object_unref (cursor);
}
static void
class_signal_cb (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
GVariantIter *iter1, *iter2;
gchar *class_name;
gint graph = 0, subject = 0, predicate = 0, object = 0;
g_variant_get (parameters, "(&sa(iiii)a(iiii))", &class_name, &iter1, &iter2);
g_print ("%s:\n", class_name);
while (g_variant_iter_loop (iter1, "(iiii)", &graph, &subject, &predicate, &object)) {
handle_statement (subject, predicate);
}
while (g_variant_iter_loop (iter2, "(iiii)", &graph, &subject, &predicate, &object)) {
handle_statement (subject, predicate);
}
g_variant_iter_free (iter1);
g_variant_iter_free (iter2);
}
gint
main (gint argc, gchar *argv[])
{
GMainLoop *loop;
GError *error = NULL;
GDBusConnection *connection;
guint signal_id;
loop = g_main_loop_new (NULL, FALSE);
con = tracker_sparql_connection_get (NULL, &error);
connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
signal_id = g_dbus_connection_signal_subscribe (connection,
TRACKER_DBUS_SERVICE,
TRACKER_DBUS_INTERFACE_RESOURCES,
"GraphUpdated",
TRACKER_DBUS_OBJECT_RESOURCES,
NULL, /* Use class-name here */
G_DBUS_SIGNAL_FLAGS_NONE,
class_signal_cb,
NULL,
NULL);
g_main_loop_run (loop);
g_dbus_connection_signal_unsubscribe (connection, signal_id);
g_main_loop_unref (loop);
g_object_unref (con);
g_object_unref (connection);
return 0;
}
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