1 files changed, 108 insertions, 0 deletions
diff --git a/ingen/ClashAvoider.hpp b/ingen/ClashAvoider.hpp
new file mode 100644
index 00000000..66b860c2
--- /dev/null
+++ b/ingen/ClashAvoider.hpp
@@ -0,0 +1,108 @@
+/*
+  This file is part of Ingen.
+  Copyright 2007-2012 David Robillard <http://drobilla.net/>
+
+  Ingen is free software: you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free
+  Software Foundation, either version 3 of the License, or 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 Affero General Public License for details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INGEN_CLASHAVOIDER_HPP
+#define INGEN_CLASHAVOIDER_HPP
+
+#include <inttypes.h>
+
+#include <map>
+#include <string>
+
+#include "ingen/Interface.hpp"
+
+namespace Raul {
+class Atom;
+class Path;
+}
+
+namespace Ingen {
+
+class Store;
+
+/** A wrapper for an Interface that creates objects but possibly maps
+ * symbol names to avoid clashes with the existing objects in a store.
+ *
+ * @ingroup IngenShared
+ */
+class ClashAvoider : public Interface
+{
+public:
+	ClashAvoider(Store& store, Interface& target, Store* also_avoid=NULL)
+		: _store(store), _target(target), _also_avoid(also_avoid) {}
+
+	Raul::URI uri() const { return "ingen:ClientStore"; }
+
+	void set_target(Interface& target) { _target = target; }
+
+	// Bundles
+	void bundle_begin() { _target.bundle_begin(); }
+	void bundle_end()   { _target.bundle_end(); }
+
+	// Object commands
+
+	virtual void put(const Raul::URI&            path,
+	                 const Resource::Properties& properties,
+	                 Resource::Graph             ctx=Resource::DEFAULT);
+
+	virtual void delta(const Raul::URI&            path,
+	                   const Resource::Properties& remove,
+	                   const Resource::Properties& add);
+
+	virtual void move(const Raul::Path& old_path,
+	                  const Raul::Path& new_path);
+
+	virtual void connect(const Raul::Path& tail,
+	                     const Raul::Path& head);
+
+	virtual void disconnect(const Raul::Path& tail,
+	                        const Raul::Path& head);
+
+	virtual void disconnect_all(const Raul::Path& parent_patch_path,
+	                            const Raul::Path& path);
+
+	virtual void set_property(const Raul::URI&  subject_path,
+	                          const Raul::URI&  predicate,
+	                          const Raul::Atom& value);
+
+	virtual void del(const Raul::URI& uri);
+
+	virtual void set_response_id(int32_t id) {}
+	virtual void get(const Raul::URI& uri) {}
+	virtual void response(int32_t id, Status status, const std::string& subject) {}
+	virtual void error(const std::string& msg) {}
+
+private:
+	const Raul::URI  map_uri(const Raul::URI& in);
+	const Raul::Path map_path(const Raul::Path& in);
+
+	Store&     _store;
+	Interface& _target;
+
+	Store* _also_avoid;
+	bool exists(const Raul::Path& path) const;
+
+	typedef std::map<Raul::Path, unsigned> Offsets;
+	Offsets _offsets;
+
+	typedef std::map<Raul::Path, Raul::Path> SymbolMap;
+	SymbolMap _symbol_map;
+};
+
+} // namespace Ingen
+
+#endif // INGEN_CLASHAVOIDER_HPP
+