private static Task <TResponse> GetPipeline(TRequest request, RequestHandlerDelegate <TResponse> invokeHandler, MultiInstanceFactory factory)
{
var behaviors = factory(typeof(IPipelineBehavior <TRequest, TResponse>))
.Cast <IPipelineBehavior <TRequest, TResponse> >()
.Reverse();
var aggregate = behaviors.Aggregate(invokeHandler, (next, pipeline) => () => pipeline.Handle(request, next));
return(aggregate());
}
public override Task Handle(INotification notification, CancellationToken cancellationToken, MultiInstanceFactory multiInstanceFactory, Func <IEnumerable <Task>, Task> publish)
{
var handlers = GetHandlers((TNotification)notification, cancellationToken, multiInstanceFactory);
return(publish(handlers));
}
/// <summary>
/// Initializes a new instance of the <see cref="Mediator"/> class.
/// </summary>
/// <param name="singleInstanceFactory">The single instance factory.</param>
/// <param name="multiInstanceFactory">The multi instance factory.</param>
public Mediator(SingleInstanceFactory singleInstanceFactory, MultiInstanceFactory multiInstanceFactory) :
this(singleInstanceFactory, multiInstanceFactory, new MediatorConfiguration() { PublishAsyncOptions = PublishAsyncOptions.Parallel })
{
}
public override Task <TResult> HandleAsync(ICommand <TResult> command, CancellationToken cancellationToken,
SingleInstanceFactory singleFactory, MultiInstanceFactory multiFactory)
{
var handler = GetHandler((TCommand)command, cancellationToken, singleFactory);
var pipeline = GetPipeline((TCommand)command, handler, multiFactory);
return(pipeline);
}
private static IEnumerable <THandler> GetHandlers <THandler>(MultiInstanceFactory factory)
{
return(factory(typeof(THandler)).Cast <THandler>());
}
public SequentialMediator(SingleInstanceFactory singleInstanceFactory, MultiInstanceFactory multiInstanceFactory) : base(singleInstanceFactory, multiInstanceFactory)
{
}
public AppMediator(MultiInstanceFactory multiInstanceFactory, SingleInstanceFactory singleInstanceFactory, IHttpContextAccessor httpContextAccessor, IAppDataContext appDataContext)
{
_inner = new Mediator(singleInstanceFactory, multiInstanceFactory);
_httpContextAccessor = httpContextAccessor;
_appDataContext = appDataContext;
}
public override Task Handle(INotification notification, CancellationToken cancellationToken, IMediatorContext context, MultiInstanceFactory multiInstanceFactory, Func <IEnumerable <RequestHandlerDelegate <Unit> >, Task> publish)
{
var handlers = GetHandlers((TNotification)notification, cancellationToken, context, multiInstanceFactory);
var pipeline = GetPipeline((TNotification)notification, context, handlers, multiInstanceFactory, publish);
return(pipeline);
}
public override Task Handle(IEvent @event, ReactiveObject state, MultiInstanceFactory factory)
{
var tasks = GetTasks(@event, state, factory);
return(Task.WhenAll(tasks));
}
public SequentialMediator(SingleInstanceFactory single, MultiInstanceFactory multi)
{
innerMediator = new Mediator(single, multi);
}
public abstract Task Handle(IEvent @event, ReactiveObject state, MultiInstanceFactory factory);
public Mediator(MultiInstanceFactory multiInstanceFactory, SingleInstanceFactory singleInstanceFactory)
{
_factory = new Factory(multiInstanceFactory, singleInstanceFactory);
}
private IEnumerable <Task> GetHandlers(TNotification notification, CancellationToken cancellationToken, MultiInstanceFactory factory)
{
var notificationHandlers = GetHandlers <INotificationHandler <TNotification> >(factory)
.Select(x =>
{
x.Handle(notification);
return(Unit.Task);
});
var asyncNotificationHandlers = GetHandlers <IAsyncNotificationHandler <TNotification> >(factory)
.Select(x => x.Handle(notification));
var cancellableAsyncNotificationHandlers = GetHandlers <ICancellableAsyncNotificationHandler <TNotification> >(factory)
.Select(x => x.Handle(notification, cancellationToken));
var allHandlers = notificationHandlers
.Concat(asyncNotificationHandlers)
.Concat(cancellableAsyncNotificationHandlers);
return(allHandlers);
}
/// <summary>
/// Initializes a new instance of the <see cref="Mediator"/> class.
/// </summary>
/// <param name="singleInstanceFactory">The single instance factory.</param>
/// <param name="multiInstanceFactory">The multi instance factory.</param>
public Mediator(SingleInstanceFactory singleInstanceFactory, MultiInstanceFactory multiInstanceFactory)
{
_singleInstanceFactory = singleInstanceFactory;
_multiInstanceFactory = multiInstanceFactory;
}
public SchemaSerializerProvider(MultiInstanceFactory multiInstanceFactory)
{
_list = multiInstanceFactory(typeof(ISchemaSerializerFactory)).Cast <ISchemaSerializerFactory>().ToList();
}
public abstract Task Handle(INotification notification, CancellationToken cancellationToken, IMediatorContext context, MultiInstanceFactory multiInstanceFactory, Func <IEnumerable <RequestHandlerDelegate <Unit> >, Task> publish);
public Bus(SingleInstanceFactory commandHandlerFactory, MultiInstanceFactory eventHandlersFactory)
{
this.commandHandlerFactory = commandHandlerFactory;
this.eventHandlersFactory = eventHandlersFactory;
}
private static async Task GetPipeline(TNotification request, IMediatorContext context, IEnumerable <RequestHandlerDelegate <Unit> > handlers, MultiInstanceFactory factory, Func <IEnumerable <RequestHandlerDelegate <Unit> >, Task> publish)
{
var behaviors = factory(typeof(IPipelineBehavior <TNotification, Unit>))
.Cast <IPipelineBehavior <TNotification, Unit> >()
.Reverse()
.ToArray();
var tasks = new List <RequestHandlerDelegate <Unit> >();
foreach (var handle in handlers)
{
RequestHandlerDelegate <Unit> handleCoreDelegate = async() =>
{
await handle();
return(Unit.Value);
};
var aggregate = behaviors.Aggregate(handleCoreDelegate, (next, pipeline) => () => pipeline.Handle(request, next, context));
tasks.Add(aggregate);
}
await publish(tasks);
}
public abstract Task HandleAsync(IEvent @event, CancellationToken cancellationToken,
MultiInstanceFactory multiInstanceFactory,
Func <IEnumerable <Task>, Task> publish);
private IEnumerable <RequestHandlerDelegate <Unit> > GetHandlers(TNotification notification, CancellationToken cancellationToken, IMediatorContext context, MultiInstanceFactory factory)
{
var notificationHandlers = GetHandlers <INotificationHandler <TNotification> >(factory)
.Select(x =>
{
return(new RequestHandlerDelegate <Unit>(() =>
{
x.Handle(notification);
return Task.FromResult(Unit.Value);
}));
});
var asyncNotificationHandlers = GetHandlers <IAsyncNotificationHandler <TNotification> >(factory)
.Select(x =>
{
return(new RequestHandlerDelegate <Unit>(async() =>
{
await x.Handle(notification).ConfigureAwait(false);
return Unit.Value;
}));
});
var cancellableAsyncNotificationHandlers = GetHandlers <ICancellableAsyncNotificationHandler <TNotification> >(factory)
.Select(x =>
{
return(new RequestHandlerDelegate <Unit>(async() =>
{
await x.Handle(notification, cancellationToken).ConfigureAwait(false);
return Unit.Value;
}));
});
var contextualAsyncNotificationHandlers = GetHandlers <IContextualAsyncNotificationHandler <TNotification> >(factory)
.Select(x =>
{
return(new RequestHandlerDelegate <Unit>(async() =>
{
await x.Handle(notification, context).ConfigureAwait(false);
return Unit.Value;
}));
});
var allHandlers = notificationHandlers
.Concat(asyncNotificationHandlers)
.Concat(cancellableAsyncNotificationHandlers)
.Concat(contextualAsyncNotificationHandlers);
return(allHandlers);
}
public Bus(SingleInstanceFactory singleInstanceFactory, MultiInstanceFactory multiInstanceFactory)
{
_singleInstanceFactory = singleInstanceFactory;
_multiInstanceFactory = multiInstanceFactory;
}
public BeaverMediator(SingleInstanceFactory single, MultiInstanceFactory multi, ILogger <BeaverMediator> logger)
{
_logger = logger;
_inner = new Mediator(single, multi);
}
public abstract Task Handle(INotification notification, CancellationToken cancellationToken, MultiInstanceFactory multiInstanceFactory, Func <IEnumerable <Task>, Task> publish);
public abstract Task HandleAsync(ICommand command, CancellationToken cancellationToken,
SingleInstanceFactory singleFactory, MultiInstanceFactory multiFactory);
public override Task Handle(INotification notification, CancellationToken cancellationToken, MultiInstanceFactory multiInstanceFactory, Func <IEnumerable <Task>, Task> publish)
{
var handlers = multiInstanceFactory(typeof(INotificationHandler <TNotification>))
.Cast <INotificationHandler <TNotification> >()
.Select(x => x.Handle((TNotification)notification, cancellationToken));
return(publish(handlers));
}
public ServiceLocator(IResolver resolver)
{
_resolver = resolver;
SingleInstanceFactory = GetInstance;
MultiInstanceFactory = GetAllInstances;
}
public Factory(MultiInstanceFactory multiInstanceFactory, SingleInstanceFactory singleInstanceFactory)
{
_multiInstanceFactory = multiInstanceFactory;
_singleInstanceFactory = singleInstanceFactory;
}
public abstract Task Handle(IRequest request, CancellationToken cancellationToken,
SingleInstanceFactory singleFactory, MultiInstanceFactory multiFactory);
public ServiceBus(SingleInstanceFactory singleInstanceFactory, MultiInstanceFactory multiInstanceFactory)
{
_singleInstanceFactory = singleInstanceFactory ?? throw new ArgumentNullException(nameof(singleInstanceFactory));
_multiInstanceFactory = multiInstanceFactory ?? throw new ArgumentNullException(nameof(multiInstanceFactory));
}
