public InitialPositionDecorator(IPositionManager positionManager, StartFromPosition startFromPosition)
{
_positionManager = positionManager ?? throw new ArgumentNullException(nameof(positionManager));
_startFromPosition = startFromPosition;
}
public static void SetInitialPosition(this StandardConfigurer <IPositionManager> configurer, StartFromPosition startFromPosition)
{
var registrar = StandardConfigurer.Open(configurer);
if (registrar.Other <ExplicitlySetInitialPosition>().HasService())
{
throw new InvalidOperationException($"Cannot set resume position to {startFromPosition}, because it has already been set!");
}
registrar.Other <ExplicitlySetInitialPosition>().Register(c => new ExplicitlySetInitialPosition(startFromPosition));
registrar.Decorate(c => new InitialPositionDecorator(c.Get <IPositionManager>(), startFromPosition));
}
public ExplicitlySetInitialPosition(StartFromPosition position) => Position = position;
