Added Machina.

Moved some Jack and RDF functionality down to RAUL from Ingen, for use by Machina.


git-svn-id: http://svn.drobilla.net/lad/raul@263 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 71 insertions, 0 deletions

diff --git a/src/RDFQuery.cpp b/src/RDFQuery.cpp
new file mode 100644
index 0000000..f92ca89
--- /dev/null
+++ b/src/RDFQuery.cpp
@@ -0,0 +1,71 @@
+/* This file is part of Ingen.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Ingen 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.
+ * 
+ * Ingen 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 details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <iostream>
+#include <cassert>
+#include <rasqal.h>
+#include "raul/RDFQuery.h"
+
+
+RDFQuery::Results
+RDFQuery::run(const Glib::ustring base_uri_str) const
+{
+	Results result;
+
+	rasqal_init();
+
+	rasqal_query *rq = rasqal_new_query("sparql", NULL);
+
+	raptor_uri* base_uri = NULL;
+	if (base_uri_str != "")
+		base_uri = raptor_new_uri((const unsigned char*)base_uri_str.c_str());
+	rasqal_query_prepare(rq, (unsigned char*)_query.c_str(), base_uri);
+
+	rasqal_query_results* results = rasqal_query_execute(rq);
+	assert(results);
+
+	while (!rasqal_query_results_finished(results)) {
+		
+		Bindings bindings;
+		
+		for (int i=0; i < rasqal_query_results_get_bindings_count(results); i++) {
+			const unsigned char* rname  = rasqal_query_results_get_binding_name(results, i);
+			rasqal_literal*      rvalue = rasqal_query_results_get_binding_value(results, i);
+			Glib::ustring name((const char*)rname);
+
+			const unsigned char* str = rasqal_literal_as_string(rvalue);
+
+			if (str) {
+				Glib::ustring value((const char*)str);
+				bindings.insert(std::make_pair(name, value));
+			}
+		}
+
+		result.push_back(bindings);
+		rasqal_query_results_next(results);
+	}
+
+	rasqal_free_query_results(results);
+	rasqal_free_query(rq);
+	
+	if (base_uri)
+		raptor_free_uri(base_uri);
+
+	rasqal_finish();
+
+	return result;
+}
+