[tracker/wip/extract-graphs] tracker-extract: use provided graph when inserting keywords from PDF documents

[Carlos Garnacho <carlosg src gnome org>]

commit 2008ce196bd3495dffb8f64ee3bb58634c596ed3
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Aug 25 18:03:38 2011 +0200

    tracker-extract: use provided graph when inserting keywords from PDF documents

 src/tracker-extract/tracker-extract-pdf.c |   21 +++++++++++++++++++--
 1 files changed, 19 insertions(+), 2 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-pdf.c b/src/tracker-extract/tracker-extract-pdf.c
index 15f1364..288aa8e 100644
--- a/src/tracker-extract/tracker-extract-pdf.c
+++ b/src/tracker-extract/tracker-extract-pdf.c
@@ -271,6 +271,7 @@ tracker_extract_get_metadata (TrackerExtractInfo *info)
 	GTime creation_date;
 	GError *error = NULL;
 	TrackerSparqlBuilder *metadata, *preupdate;
+	const gchar *graph;
 	TrackerXmpData *xd = NULL;
 	PDFData pd = { 0 }; /* actual data */
 	PDFData md = { 0 }; /* for merging */
@@ -287,6 +288,7 @@ tracker_extract_get_metadata (TrackerExtractInfo *info)
 
 	metadata = tracker_extract_info_get_metadata_builder (info);
 	preupdate = tracker_extract_info_get_preupdate_builder (info);
+	graph = tracker_extract_info_get_graph (info);
 
 	file = tracker_extract_info_get_file (info);
 	uri = g_file_get_uri (file);
@@ -597,11 +599,26 @@ tracker_extract_get_metadata (TrackerExtractInfo *info)
 		var = g_strdup_printf ("tag%d", i + 1);
 
 		/* ensure tag with specified label exists */
+		tracker_sparql_builder_append (preupdate, "INSERT { ");
+
+		if (graph) {
+			tracker_sparql_builder_append (preupdate, "GRAPH <");
+			tracker_sparql_builder_append (preupdate, graph);
+			tracker_sparql_builder_append (preupdate, "> { ");
+		}
+
 		tracker_sparql_builder_append (preupdate,
-		                               "INSERT { _:tag a nao:Tag ; nao:prefLabel \"");
+		                               "_:tag a nao:Tag ; nao:prefLabel \"");
 		tracker_sparql_builder_append (preupdate, escaped);
+		tracker_sparql_builder_append (preupdate, "\"");
+
+		if (graph) {
+			tracker_sparql_builder_append (preupdate, " } ");
+		}
+
+		tracker_sparql_builder_append (preupdate, " }\n");
 		tracker_sparql_builder_append (preupdate,
-		                               "\" }\nWHERE { FILTER (NOT EXISTS { "
+		                               "WHERE { FILTER (NOT EXISTS { "
 		                               "?tag a nao:Tag ; nao:prefLabel \"");
 		tracker_sparql_builder_append (preupdate, escaped);
 		tracker_sparql_builder_append (preupdate,