protected override IEnumerable <Type> FindHandlers(Assembly assembly)
{
var assemblyTypes = assembly.GetTypes();
var packetHandlerTypes = assemblyTypes.Where(type =>
Attribute.IsDefined(type, typeof(PacketHandlerClassAttribute)) &&
PacketHandlerClassAttribute.IsValidPacketHandlerClass(type));
return(packetHandlerTypes);
}
protected override KeyValuePair <Type, IPacketHandler> ExtractHandler(Type handlerMetaType)
{
var packetType = PacketHandlerClassAttribute.FindPacketHandlerGenericInterface(handlerMetaType)
.GenericTypeArguments[0];
var packetHandler = Activator.CreateInstance(handlerMetaType) as IPacketHandler;
return(new KeyValuePair <Type, IPacketHandler>(packetType, packetHandler));
}
protected override KeyValuePair <Type, HandlePacketGeneric> ExtractHandler(Type handlerMetaType)
{
var packetType = PacketHandlerClassAttribute.FindPacketHandlerGenericInterface(handlerMetaType)
.GenericTypeArguments[0];
var genericDelegateFactory = GetType().GetMethod(nameof(CreateHandlerDelegate),
BindingFlags.NonPublic | BindingFlags.Static);
var typedDelegateFactory = genericDelegateFactory.MakeGenericMethod(packetType);
var packetHandler = Activator.CreateInstance(handlerMetaType) as IPacketHandler;
var instance = typedDelegateFactory.Invoke(null, new object[] { packetHandler });
var packetHandlerDelegate = instance as HandlePacketGeneric;
return(new KeyValuePair <Type, HandlePacketGeneric>(packetType, packetHandlerDelegate));
}
