/**
* tracker_extract_info_new:
* @file: a #GFile
* @mimetype: mimetype for @file
* @graph: SPARQL graph used for inserting data
*
* Returns a newly created #TrackerExtractInfo
*
* Returns: (transfer full): (boxed): A newly allocated #TrackerExtractInfo
*
* Since: 0.12
**/
TrackerExtractInfo *
tracker_extract_info_new (GFile *file,
const gchar *mimetype,
const gchar *graph)
{
TrackerExtractInfo *info;
g_return_val_if_fail (G_IS_FILE (file), NULL);
info = g_slice_new0 (TrackerExtractInfo);
info->file = g_object_ref (file);
info->mimetype = g_strdup (mimetype);
info->graph = g_strdup (graph);
info->preupdate = tracker_sparql_builder_new_update ();
info->postupdate = tracker_sparql_builder_new_update ();
info->metadata = tracker_sparql_builder_new_embedded_insert ();
info->where_clause = NULL;
#ifdef HAVE_LIBMEDIAART
info->media_art_process = NULL;
#endif
info->ref_count = 1;
return info;
}
static TrackerDecoratorInfo *
tracker_decorator_info_new (TrackerDecorator *decorator,
TrackerSparqlCursor *cursor)
{
TrackerSparqlBuilder *sparql;
TrackerDecoratorInfo *info;
GCancellable *cancellable;
info = g_slice_new0 (TrackerDecoratorInfo);
info->urn = g_strdup (tracker_sparql_cursor_get_string (cursor, 0, NULL));
info->id = tracker_sparql_cursor_get_integer (cursor, 1);
info->url = g_strdup (tracker_sparql_cursor_get_string (cursor, 2, NULL));
info->mimetype = g_strdup (tracker_sparql_cursor_get_string (cursor, 3, NULL));
info->ref_count = 1;
cancellable = g_cancellable_new ();
info->task = g_task_new (decorator, cancellable,
decorator_task_done, info);
g_object_unref (cancellable);
sparql = tracker_sparql_builder_new_update ();
g_task_set_task_data (info->task, sparql,
(GDestroyNotify) g_object_unref);
return info;
}
static void feed_removed (FeedSettings *setts, gchar *id, TrackerSparqlConnection *tracker_client)
{
TrackerSparqlBuilder *sparql;
sparql = tracker_sparql_builder_new_update ();
tracker_sparql_builder_delete_open (sparql, NULL);
tracker_sparql_builder_subject_iri (sparql, id);
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "rdfs:Resource");
tracker_sparql_builder_delete_close (sparql);
tracker_sparql_builder_where_open (sparql);
tracker_sparql_builder_subject_iri (sparql, id);
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "rdfs:Resource");
tracker_sparql_builder_where_close (sparql);
tracker_sparql_connection_update (tracker_client, tracker_sparql_builder_get_result (sparql), 0, NULL, NULL);
g_object_unref (sparql);
}
/* If a reset is requested, we will remove from the store all items previously
* inserted by the tracker-miner-applications, this is:
* (a) all elements which are nfo:softwareIcon of a given nfo:Software
* (b) all nfo:Software in our graph (includes both applications and maemo applets)
* (c) all elements which are nfo:softwareCategoryIcon of a given nfo:SoftwareCategory
* (d) all nfo:SoftwareCategory in our graph
*/
static void
miner_applications_reset (TrackerMiner *miner)
{
GError *error = NULL;
TrackerSparqlBuilder *sparql;
sparql = tracker_sparql_builder_new_update ();
/* (a) all elements which are nfo:softwareIcon of a given nfo:Software */
tracker_sparql_builder_delete_open (sparql, TRACKER_OWN_GRAPH_URN);
tracker_sparql_builder_subject_variable (sparql, "icon");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "rdfs:Resource");
tracker_sparql_builder_delete_close (sparql);
tracker_sparql_builder_where_open (sparql);
tracker_sparql_builder_subject_variable (sparql, "software");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "nfo:Software");
tracker_sparql_builder_subject_variable (sparql, "icon");
tracker_sparql_builder_predicate (sparql, "nfo:softwareIcon");
tracker_sparql_builder_object_variable (sparql, "software");
tracker_sparql_builder_where_close (sparql);
/* (b) all nfo:Software in our graph (includes both applications and maemo applets) */
tracker_sparql_builder_delete_open (sparql, TRACKER_OWN_GRAPH_URN);
tracker_sparql_builder_subject_variable (sparql, "software");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "rdfs:Resource");
tracker_sparql_builder_delete_close (sparql);
tracker_sparql_builder_where_open (sparql);
tracker_sparql_builder_subject_variable (sparql, "software");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "nfo:Software");
tracker_sparql_builder_where_close (sparql);
/* (c) all elements which are nfo:softwareCategoryIcon of a given nfo:SoftwareCategory */
tracker_sparql_builder_delete_open (sparql, TRACKER_OWN_GRAPH_URN);
tracker_sparql_builder_subject_variable (sparql, "icon");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "rdfs:Resource");
tracker_sparql_builder_delete_close (sparql);
tracker_sparql_builder_where_open (sparql);
tracker_sparql_builder_subject_variable (sparql, "category");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "nfo:SoftwareCategory");
tracker_sparql_builder_subject_variable (sparql, "icon");
tracker_sparql_builder_predicate (sparql, "nfo:softwareCategoryIcon");
tracker_sparql_builder_object_variable (sparql, "category");
tracker_sparql_builder_where_close (sparql);
/* (d) all nfo:SoftwareCategory in our graph */
tracker_sparql_builder_delete_open (sparql, TRACKER_OWN_GRAPH_URN);
tracker_sparql_builder_subject_variable (sparql, "category");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "rdfs:Resource");
tracker_sparql_builder_delete_close (sparql);
tracker_sparql_builder_where_open (sparql);
tracker_sparql_builder_subject_variable (sparql, "category");
tracker_sparql_builder_predicate (sparql, "a");
tracker_sparql_builder_object (sparql, "nfo:SoftwareCategory");
tracker_sparql_builder_where_close (sparql);
/* Execute a sync update, we don't want the apps miner to start before
* we finish this. */
tracker_sparql_connection_update (tracker_miner_get_connection (miner),
tracker_sparql_builder_get_result (sparql),
G_PRIORITY_HIGH,
NULL,
&error);
if (error) {
/* Some error happened performing the query, not good */
g_critical ("Couldn't reset mined applications: %s",
error ? error->message : "unknown error");
g_error_free (error);
}
g_object_unref (sparql);
}
