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Diffstat (limited to 'raul/RDFQuery.h')
-rw-r--r-- | raul/RDFQuery.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/raul/RDFQuery.h b/raul/RDFQuery.h new file mode 100644 index 0000000..5e972ca --- /dev/null +++ b/raul/RDFQuery.h @@ -0,0 +1,77 @@ +/* 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 + */ + +#ifndef RAUL_RDFQUERY_H +#define RAUL_RDFQUERY_H + +#include <map> +#include <list> +#include <glibmm/ustring.h> +#include "raul/Namespaces.h" + +namespace Ingen { +namespace Client { + + +/** Pretty wrapper for a SPARQL query. + * + * Automatically handles things like prepending prefixes, etc. Ingen specific. + */ +class RDFQuery { +public: + typedef std::map<Glib::ustring, Glib::ustring> Bindings; + typedef std::list<Bindings> Results; + + RDFQuery(const Namespaces& prefixes, Glib::ustring query) + { + // Prepend prefix header + for (Namespaces::const_iterator i = prefixes.begin(); + i != prefixes.end(); ++i) { + _query = "PREFIX "; + _query += i->first + ": <" + i->second + ">\n"; + } + _query += "\n"; + _query += query; + + /*const char* const prefix_header = + "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" + "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>\n" + "PREFIX ingen: <http://codeson.net/ns/ingen#>\n" + "PREFIX lv2: <http://lv2plug.in/ontology#>\n"; + + _query = _prefix_header + query;*/ + } + + /*RDFQuery(Glib::ustring query) + { + _query = _prefix_header + query; + }*/ + + Results run(const Glib::ustring base_uri) const; + + Glib::ustring string() const { return _query; }; + +private: + + Glib::ustring _query; +}; + + +} // namespace Client +} // namespace Ingen + +#endif // RAUL_RDFQUERY_H + |