[tracker/ontology-cache: 2/5] libtracker-data: Add function to write ontologies to gvdb file

[Jürg Billeter <juergbi src gnome org>]

commit 6917796aff18da56c736fc015b37db083a2436ca
Author: Jürg Billeter <j bitron ch>
Date:   Wed Dec 1 14:08:06 2010 +0100

    libtracker-data: Add function to write ontologies to gvdb file

 src/libtracker-data/Makefile.am          |    1 +
 src/libtracker-data/tracker-ontologies.c |   54 ++++++++++++++++++++++++++++++
 src/libtracker-data/tracker-ontologies.h |    3 ++
 3 files changed, 58 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-data/Makefile.am b/src/libtracker-data/Makefile.am
index 3283232..6729047 100644
--- a/src/libtracker-data/Makefile.am
+++ b/src/libtracker-data/Makefile.am
@@ -46,6 +46,7 @@ libtracker_data_la_SOURCES =                           \
 	tracker-property.c
 
 libtracker_data_la_LIBADD =                            \
+	$(top_builddir)/src/gvdb/libgvdb.la \
 	$(top_builddir)/src/libtracker-common/libtracker-common.la \
 	$(top_builddir)/src/libtracker-sparql/libtracker-sparql- TRACKER_API_VERSION@.la \
 	$(BUILD_LIBS)                                  \
diff --git a/src/libtracker-data/tracker-ontologies.c b/src/libtracker-data/tracker-ontologies.c
index cdde80c..8f46dae 100644
--- a/src/libtracker-data/tracker-ontologies.c
+++ b/src/libtracker-data/tracker-ontologies.c
@@ -25,6 +25,7 @@
 
 #include <glib.h>
 
+#include <gvdb/gvdb-builder.h>
 #include <libtracker-common/tracker-ontologies.h>
 
 #include "tracker-ontologies.h"
@@ -336,3 +337,56 @@ tracker_ontologies_get_ontology_by_uri (const gchar *uri)
 
 	return g_hash_table_lookup (ontology_uris, uri);
 }
+
+void
+tracker_ontologies_write_gvdb (const gchar  *filename,
+                               GError      **error)
+{
+	GHashTable *table, *subtable;
+	gint i;
+
+	table = gvdb_hash_table_new (NULL, NULL);
+
+	subtable = gvdb_hash_table_new (table, "namespaces");
+	for (i = 0; i < namespaces->len; i++) {
+		TrackerNamespace *namespace;
+		GHashTable *nstable;
+
+		namespace = namespaces->pdata[i];
+		nstable = gvdb_hash_table_new (subtable, tracker_namespace_get_uri (namespace));
+
+		gvdb_hash_table_insert_string (nstable, "prefix", tracker_namespace_get_prefix (namespace));
+	}
+
+	subtable = gvdb_hash_table_new (table, "classes");
+	for (i = 0; i < classes->len; i++) {
+		TrackerClass *class;
+		GHashTable *classtable;
+
+		class = classes->pdata[i];
+		classtable = gvdb_hash_table_new (subtable, tracker_class_get_uri (class));
+
+		gvdb_hash_table_insert_string (classtable, "name", tracker_class_get_name (class));
+	}
+
+	subtable = gvdb_hash_table_new (table, "properties");
+	for (i = 0; i < properties->len; i++) {
+		TrackerProperty *property;
+		GHashTable *proptable;
+
+		property = properties->pdata[i];
+		proptable = gvdb_hash_table_new (subtable, tracker_property_get_uri (property));
+
+		gvdb_hash_table_insert_string (proptable, "name", tracker_property_get_name (property));
+		gvdb_hash_table_insert_string (proptable, "domain", tracker_class_get_uri (tracker_property_get_domain (property)));
+		gvdb_hash_table_insert_string (proptable, "range", tracker_class_get_uri (tracker_property_get_range (property)));
+
+		if (!tracker_property_get_multiple_values (property)) {
+			gvdb_item_set_value (gvdb_hash_table_insert (proptable, "max-cardinality"), g_variant_new_int32 (1));
+		}
+	}
+
+	gvdb_table_write_contents (table, filename, FALSE, error);
+
+	g_hash_table_unref (table);
+}
diff --git a/src/libtracker-data/tracker-ontologies.h b/src/libtracker-data/tracker-ontologies.h
index 278a79d..b4a5a71 100644
--- a/src/libtracker-data/tracker-ontologies.h
+++ b/src/libtracker-data/tracker-ontologies.h
@@ -59,6 +59,9 @@ const gchar*       tracker_ontologies_get_uri_by_id        (gint              id
 void               tracker_ontologies_add_id_uri_pair      (gint              id,
                                                             const gchar      *uri);
 
+void               tracker_ontologies_write_gvdb           (const gchar      *filename,
+                                                            GError          **error);
+
 G_END_DECLS
 
 #endif /* __LIBTRACKER_DATA_ONTOLOGY_H__ */