/// <summary>
/// Обрабатывает сообщение с помощью зарегистрированных фильтров.
/// </summary>
/// <param name="message">Обрабатываемое сообщение.</param>
/// <returns>Задача обработки сообщения с помощью фильтров.</returns>
private Task ProcessFilter(IMessage message)
{
var exchange = new MessageExchange(message, null);
var invoker = new MessageExchangeFilterInvoker(this.filters);
return(invoker.Process(exchange));
}
public void should_invoke_starting_with_recent()
{
var log = new List <string>();
var filters = new[] { new LoggingFilter("A", log), new LoggingFilter("B", log), new LoggingFilter("C", log) };
var exchange = new MessageExchange(new Message("msg".ToMessageLabel(), new object()));
var invoker = new MessageExchangeFilterInvoker(filters);
invoker.Process(exchange).
Wait(1.Seconds());
log.Should().
BeEquivalentTo(new object[] { "C: before", "B: before", "A: before", "A: after", "B: after", "C: after" });
}
/// <summary>
/// Sends message using request-reply pattern.
/// <see cref="Headers.CorrelationId"/> header from <see cref="headers"/> parameter is used to correlate the request with the reply,
/// new one is generated if none is supplied.
/// </summary>
/// <param name="payload">Message payload.</param>
/// <param name="headers">Message headers.</param>
/// <typeparam name="T">Type of response.</typeparam>
/// <returns>Request processing task.</returns>
public Task <T> Request <T>(object payload, IDictionary <string, object> headers) where T : class
{
var message = new Message(this.Configuration.Label, headers, payload);
var exchange = new MessageExchange(message, typeof(T));
var invoker = new MessageExchangeFilterInvoker(this.filters);
return(invoker.Process(exchange)
.ContinueWith(
t =>
{
t.Result.ThrowIfFailed();
return (T)t.Result.In.Payload;
}));
}
/// <summary>
/// Отправляет сообщение в формате запрос-ответ.
/// </summary>
/// <param name="label">Метка отправляемого запроса.</param>
/// <param name="payload">Сообщение запроса.</param>
/// <param name="headers">Заголовки запроса.</param>
/// <typeparam name="T">Тип сообщения ответа.</typeparam>
/// <returns>Задача выполнения запроса.</returns>
public Task <T> Request <T>(MessageLabel label, object payload, IDictionary <string, object> headers) where T : class
{
if (!headers.ContainsKey(Headers.CorrelationId))
{
headers[Headers.CorrelationId] = Guid.NewGuid().ToString("n");
}
var message = new Message(this.Configuration.Label.Equals(MessageLabel.Any) ? label : this.Configuration.Label, headers, payload);
var exchange = new MessageExchange(message, typeof(T));
var invoker = new MessageExchangeFilterInvoker(this.filters);
return(invoker.Process(exchange)
.ContinueWith(
t =>
{
t.Result.ThrowIfFailed();
return (T)t.Result.In.Payload;
}));
}
