[tracker/wip/carlosg/domain-ontologies: 2/21] tracker-miner-fs: Add --domain-ontology switch

[Carlos Garnacho <carlosg src gnome org>]

commit a572fbecf297fad31dee1e3c553eb645dbc11b6a
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jun 19 20:30:32 2017 +0200

    tracker-miner-fs: Add --domain-ontology switch
    
    This allows running tracker-miner-fs on other domain ontologies
    moderated by a tracker-store daemon. The switch does:
    1) Set up the ontology domain for the default TrackerSparqlConnection
    2) Make the miner use a DBus name relative to the domain
    
    In result, tracker-miner-fs can take a different DBus name and talk
    to other tracker-store instances than the default.

 src/miners/fs/tracker-main.c |   29 ++++++++++++++++++++++++++---
 1 files changed, 26 insertions(+), 3 deletions(-)
---
diff --git a/src/miners/fs/tracker-main.c b/src/miners/fs/tracker-main.c
index 2580d3b..062734e 100644
--- a/src/miners/fs/tracker-main.c
+++ b/src/miners/fs/tracker-main.c
@@ -54,7 +54,7 @@
 
 #define SECONDS_PER_DAY 60 * 60 * 24
 
-#define DBUS_NAME "org.freedesktop.Tracker1.Miner.Files"
+#define DBUS_NAME_SUFFIX "Miner.Files"
 #define DBUS_PATH "/org/freedesktop/Tracker1/Miner/Files"
 
 static void miner_handle_next (void);
@@ -71,6 +71,7 @@ static gchar *eligible;
 static gboolean version;
 static guint miners_timeout_id = 0;
 static gboolean do_crawling = FALSE;
+static gchar *domain_ontology_name = NULL;
 
 static GOptionEntry entries[] = {
        { "verbosity", 'v', 0,
@@ -91,6 +92,10 @@ static GOptionEntry entries[] = {
          G_OPTION_ARG_FILENAME, &eligible,
          N_("Checks if FILE is eligible for being mined based on configuration"),
          N_("FILE") },
+       { "domain-ontology", 'd', 0,
+         G_OPTION_ARG_STRING, &domain_ontology_name,
+         N_("Runs for an specific domain ontology"),
+         NULL },
        { "version", 'V', 0,
          G_OPTION_ARG_NONE, &version,
          N_("Displays version information"),
@@ -683,6 +688,8 @@ main (gint argc, gchar *argv[])
        gboolean store_available;
        TrackerMinerProxy *proxy;
        GDBusConnection *connection;
+       TrackerDomainOntology *domain_ontology;
+       gchar *dbus_name;
 
        main_loop = NULL;
 
@@ -720,6 +727,16 @@ main (gint argc, gchar *argv[])
                return EXIT_SUCCESS;
        }
 
+       tracker_sparql_connection_set_domain (domain_ontology_name);
+
+       domain_ontology = tracker_domain_ontology_new (domain_ontology_name, NULL, &error);
+       if (error) {
+               g_critical ("Could not load domain ontology '%s': %s",
+                           domain_ontology_name, error->message);
+               g_error_free (error);
+               return EXIT_FAILURE;
+       }
+
        connection = g_bus_get_sync (TRACKER_IPC_BUS, NULL, &error);
        if (error) {
                g_critical ("Could not create DBus connection: %s\n",
@@ -728,13 +745,18 @@ main (gint argc, gchar *argv[])
                return EXIT_FAILURE;
        }
 
-       if (!tracker_dbus_request_name (connection, DBUS_NAME, &error)) {
+       dbus_name = tracker_domain_ontology_get_domain (domain_ontology, DBUS_NAME_SUFFIX);
+
+       if (!tracker_dbus_request_name (connection, dbus_name, &error)) {
                g_critical ("Could not request DBus name '%s': %s",
-                           DBUS_NAME, error->message);
+                           dbus_name, error->message);
                g_error_free (error);
+               g_free (dbus_name);
                return EXIT_FAILURE;
        }
 
+       g_free (dbus_name);
+
        /* Initialize logging */
        config = tracker_config_new ();
 
@@ -865,6 +887,7 @@ main (gint argc, gchar *argv[])
 
        g_object_unref (proxy);
        g_object_unref (connection);
+       g_object_unref (domain_ontology);
 
        tracker_writeback_shutdown ();
        tracker_log_shutdown ();