public HandlerFactory(RequestHandlerAttribute attribute, IAmAHandlerFactorySync factorySync, IRequestContext requestContext)
{
_attribute = attribute;
_factorySync = factorySync;
_requestContext = requestContext;
_messageType = typeof(TRequest);
}
private static void PushOntoAttributeList(ref IOrderedEnumerable <RequestHandlerAttribute> preAttributes, RequestHandlerAttribute requestHandlerAttribute)
{
var attributeList = new List <RequestHandlerAttribute>();
attributeList.Add(requestHandlerAttribute);
preAttributes.Each(handler =>
{
handler.Step++;
attributeList.Add(handler);
});
preAttributes = attributeList.OrderByDescending(handler => handler.Step);
}
/// <summary>
/// Creates the async request handler.
/// </summary>
/// <param name="factory">The async handler factory.</param>
/// <param name="attribute">The attribute.</param>
/// <param name="requestContext">The request context.</param>
/// <returns><see cref="IHandleRequestsAsync{TRequest}"/>.</returns>
public static IHandleRequestsAsync <TRequest> CreateAsyncRequestHandler <TRequest>(this IAmAHandlerFactoryAsync factory, RequestHandlerAttribute attribute, IRequestContext requestContext)
where TRequest : class, IRequest
{
var handlerType = attribute.GetHandlerType().MakeGenericType(typeof(TRequest));
var handler = (IHandleRequestsAsync <TRequest>)factory.Create(handlerType);
//Lod the context before the initializer - in case we want to use the context from within the initializer
handler.Context = requestContext;
handler.InitializeFromAttributeParams(attribute.InitializerParams());
return(handler);
}
/// <summary>
/// Creates the async request handler.
/// </summary>
/// <param name="factory">The async handler factory.</param>
/// <param name="attribute">The attribute.</param>
/// <param name="requestContext">The request context.</param>
/// <returns><see cref="IHandleRequestsAsync{TRequest}"/>.</returns>
public static IHandleRequestsAsync <TRequest> CreateAsyncRequestHandler <TRequest>(this IAmAHandlerFactoryAsync factory, RequestHandlerAttribute attribute, IRequestContext requestContext)
where TRequest : class, IRequest
{
var handlerType = attribute.GetHandlerType().MakeGenericType(typeof(TRequest));
var handler = (IHandleRequestsAsync <TRequest>)factory.Create(handlerType);
if (handler is null)
{
throw new ConfigurationException($"Could not create handler {handlerType} from {factory}");
}
//Load the context before the initializer - in case we want to use the context from within the initializer
handler.Context = requestContext;
handler.InitializeFromAttributeParams(attribute.InitializerParams());
return(handler);
}
