/// <summary>
/// Adds <see cref="ReloadPipelineMiddleware"/> to the middleware pipeline, with a change token to invalidate it and rebuild it.
/// </summary>
/// <param name="builder"></param>
///<param name="registerListener">Function that registers a callback to be invoked when a change occurs, and returns an <see cref="IDisposable"/> that will remove the registration when the caller disposes of it in order to stop being notifified.</param>
/// <param name="configure"></param>
/// <param name="isTerminal"></param>
/// <returns></returns>
public static IApplicationBuilder AddReloadablePipelineMiddleware(this IApplicationBuilder builder,
Func <Action, IDisposable> registerListener,
Action <IApplicationBuilder> configure,
bool isTerminal)
{
var changeTokenFactory = ChangeTokenFactoryHelper.UseCallbackRegistrations(registerListener);
return(ChangeTokenExtensions.AddReloadablePipelineMiddleware(builder, changeTokenFactory, configure, isTerminal));
}
/// <summary>
/// Adds <see cref="ReloadPipelineMiddleware"/> to the middleware pipeline, with a factory method that can supply a <see cref="CancellationToken"/> that can be used to invalidate it and cause a reload.
/// </summary>
/// <param name="builder"></param>
///<param name="getCancellationToken">Function that returns a cancellation token that will be signalled when the pipeline needs to be reloaded.</param>
/// <param name="configure"></param>
/// <param name="isTerminal"></param>
/// <returns></returns>
public static IApplicationBuilder AddReloadablePipelineMiddleware(this IApplicationBuilder builder,
Func <CancellationToken> getCancellationToken,
Action <IApplicationBuilder> configure,
bool isTerminal)
{
var changeTokenFactory = ChangeTokenFactoryHelper.UseCancellationTokens(getCancellationToken);
return(ChangeTokenExtensions.AddReloadablePipelineMiddleware(builder, changeTokenFactory, configure, isTerminal));
}