internal void Load(Editor editor, string path)
{
Verify.DirectoryExists(path, "path");
Trace.TraceInformation("Loading default editor extensions at folder {0}", Path.GetFullPath(path));
var extensions = Directory.GetFiles(path, "*.DLL").Concat(Directory.GetFiles(path, "*.EXE"))
.SelectMany(file => LoadExportedTypes(file))
.Select(type => new { Export = type.GetCustomAttributes(typeof(ExportAttribute), false).SingleOrDefault(), Type = type })
.Where(pair => pair.Export != null)
.ToLookup(pair => ((ExportAttribute)pair.Export).ContractType, pair => pair.Type);
AttributeProviders.AddRange(from type in extensions[typeof(IAttributeProvider)] where !AttributeProviders.Any(x => x.GetType() == type) select(IAttributeProvider) Activator.CreateInstance(type));
Factories.AddRange(from type in extensions[typeof(IFactory)] where !Factories.Any(x => x.Value.GetType() == type) select new Extension <IFactory>(editor, (IFactory)Activator.CreateInstance(type)));
Visualizers.AddRange(from type in extensions[typeof(IVisualizer)] where !Visualizers.Any(x => x.Value.GetType() == type) select new Extension <IVisualizer>(editor, (IVisualizer)Activator.CreateInstance(type)));
Tools.AddRange(from type in extensions[typeof(ITool)] where !Tools.Any(x => x.Value.GetType() == type) select new Extension <ITool>(editor, (ITool)Activator.CreateInstance(type)));
Importers.AddRange(from type in extensions[typeof(IImporter)] where !Importers.Any(x => x.Value.GetType() == type) select new Extension <IImporter>(editor, (IImporter)Activator.CreateInstance(type)));
Exporters.AddRange(from type in extensions[typeof(IExporter)] where !Exporters.Any(x => x.Value.GetType() == type) select new Extension <IExporter>(editor, (IExporter)Activator.CreateInstance(type)));
Settings.AddRange(from type in extensions[typeof(ISettings)] where !Settings.Any(x => x.Value.GetType() == type) select new Extension <ISettings>(editor, (ISettings)Activator.CreateInstance(type)));
TraceExtensions();
Trace.TraceInformation("Extensions Loaded.");
}