Files
Toolkit2/Framework/Foundation/Lifecycles/CommandClassHandlerWrapper.cs
T

24 lines
1.1 KiB
C#

namespace Toolkit.Framework.Foundation;
public class CommandClassHandlerWrapper<TRequest, TResponse> where TRequest : class, ICommand<TResponse>
{
private readonly MessageHandlerDelegate<TRequest, TResponse> handler;
public CommandClassHandlerWrapper(ICommandHandler<TRequest, TResponse> concreteHandler,
IEnumerable<IPipelineBehavior<TRequest, TResponse>> pipelineBehaviours)
{
MessageHandlerDelegate<TRequest, TResponse> handler = concreteHandler.Handle;
foreach (IPipelineBehavior<TRequest, TResponse>? pipeline in pipelineBehaviours.Reverse())
{
MessageHandlerDelegate<TRequest, TResponse> handlerCopy = handler;
IPipelineBehavior<TRequest, TResponse> pipelineCopy = pipeline;
handler = (TRequest message, CancellationToken cancellationToken) => pipelineCopy.Handle(message, cancellationToken, handlerCopy);
}
this.handler = handler;
}
public ValueTask<TResponse> Handle(TRequest request, CancellationToken cancellationToken) => handler(request, cancellationToken);
}