public void FactoryCaches()
{
DateTimeOffset firstNow = new DateTimeOffset(2017, 3, 27, 13, 40, 23, TimeSpan.Zero);
DateTimeOffset secondNow = new DateTimeOffset(2017, 3, 27, 13, 42, 23, TimeSpan.Zero);
_subDateTimeService.UtcNow
.Returns(firstNow, secondNow);
_subMessageHandlerFactory.Create().Returns(c => new HttpClientHandler());
HttpClientFactory factory = CreateFactory();
HttpClient firstClient = factory.GetOrCreateClient();
HttpClient secondClient = factory.GetOrCreateClient();
Assert.AreEqual(firstClient, secondClient);
}
private async Task ProcessAsync(IncomingMessage msg, CancellationToken cToken)
{
IMessageHandler handler = null;
try
{
handler = _handlerFactory.Create(msg);
Logger.Debug("Handler {0} found for request {1}", handler.GetType().Name, msg.GetType().Name);
var responses = await handler.HandleAsync(msg, cToken);
if (responses == null)
{
return;
}
Logger.Debug("{0} messages to send back", responses.Count);
foreach (var r in responses)
{
await _nodeMessageChannel.SendAsync(r, cToken);
MessageLog.Debug("OUT:{0}", r);
}
}
catch (Exception e)
{
Logger.Error(e);
}
finally
{
if (handler != null)
{
_handlerFactory.Release(handler);
}
}
}
public void RegisterHandler <TMessage, THandler>(IMessageHandlerFactory <TMessage, THandler> factory) where THandler : IHandler <TMessage> where TMessage : class, IHaveProcessId, IHaveId
{
var cfg = new ContainerConfiguration(c => c.Register <THandler>(ctx => factory.Create(ctx.Resolve <IMessageProcessContext>())),
c => c.RegisterType <MessageHandleActor <TMessage, THandler> >());
_containerConfigurations.Add(cfg);
_maps.Add(factory.CreateRouteMap());
}
private HttpClient Create()
{
HttpClientHandler handler = _messageHandlerFactory.Create();
handler.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
return(new HttpClient(handler));
}
public WebHttpClientFactory(IMessageHandlerFactory messageHandlerFactory)
{
_messageHandlerFactory = messageHandlerFactory;
HttpClientHandler handler = messageHandlerFactory.Create();
handler.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
_httpClient = new HttpClient(handler);
}
public IEnumerable <IMessageHandler> GetHandlersForType(Type type)
{
foreach (Type handlerType in this)
{
var handler = _factory.Create(handlerType);
if (handler.CanHandle(type))
{
yield return(handler);
}
}
}
public void WhenMessageHandlerCreateCalled_ThenFactoryIsInvoked()
{
var handler = new HttpClientHandler();
_subMessageHandlerFactory.Create().Returns(handler);
HealthVaultSodaConnection healthVaultSodaConnection = CreateHealthVaultSodaConnection();
IMessageHandlerFactory factory = healthVaultSodaConnection;
var handlerResult = factory.Create();
Assert.AreEqual(handler, handlerResult);
}
public async void Process(string route, string messageId, string topic, string payload, bool resend,
CancellationToken cancellationToken)
{
var sw = Stopwatch.StartNew();
try
{
var type = _messageTypesCache.Get(topic);
var message = JsonConvert.DeserializeObject(payload, type);
var handlerType = _messageHandlersCache.Get(topic);
var handlerInstance = _messageHandlerFactory.Create(handlerType);
await handlerInstance.Handle(route, messageId, message, resend, cancellationToken);
}
catch (Exception e)
{
_messagingLogger.Error(e);
}
finally
{
_messagingLogger.Debug($"{messageId} processed in {sw.ElapsedMilliseconds}");
}
}
#pragma warning disable SA1204 // Static elements should appear before instance elements
#pragma warning disable SA1202 // Elements should be ordered by access
/// <summary>
/// Processes the message by invoking the message handler.
/// </summary>
public static async Task <bool> ProcessMessage(
ILogger <ServiceBusMessageBroker> logger,
ITracer tracer,
ISubscriptionMap subscriptions,
IMessageHandlerFactory handlerFactory,
ISerializer serializer,
string messageScope,
IMediator mediator,
Microsoft.Azure.ServiceBus.Message serviceBusMessage)
#pragma warning restore SA1204 // Static elements should appear before instance elements
#pragma warning restore SA1202 // Elements should be ordered by access
{
var processed = false;
var messageName = serviceBusMessage.Label;
if (subscriptions.Exists(messageName))
{
foreach (var subscription in subscriptions.GetAll(messageName))
{
var messageType = subscriptions.GetByName(messageName);
if (messageType == null)
{
continue;
}
// get parent span infos from message
ISpan parentSpan = null;
if (serviceBusMessage.UserProperties.ContainsKey("TraceId") && serviceBusMessage.UserProperties.ContainsKey("SpanId"))
{
// dehydrate parent span
parentSpan = new Span(serviceBusMessage.UserProperties["TraceId"] as string, serviceBusMessage.UserProperties["SpanId"] as string);
}
using (logger.BeginScope(new Dictionary <string, object>
{
[LogPropertyKeys.CorrelationId] = serviceBusMessage.CorrelationId,
//[LogPropertyKeys.TrackId] = scope.Span.SpanId = allready done in Span ScopeManager (activate)
}))
using (var scope = tracer?.BuildSpan(messageName, LogKeys.AppMessaging, SpanKind.Consumer, parentSpan).Activate(logger))
{
// map some message properties to the typed message
//var jsonMessage = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(serviceBusMessage.Body), messageType); // TODO: use ISerializer here, compacter messages
//var message = jsonMessage as Domain.Message;
if (!(serializer.Deserialize(serviceBusMessage.Body, messageType) is Domain.Message message))
{
return(false);
}
// TODO: message can be null, skip
if (message.Origin.IsNullOrEmpty())
{
//message.CorrelationId = jsonMessage.AsJToken().GetStringPropertyByToken("CorrelationId");
message.Origin = serviceBusMessage.UserProperties.ContainsKey("Origin") ? serviceBusMessage.UserProperties["Origin"] as string : string.Empty;
}
logger.LogJournal(LogKeys.AppMessaging, $"message processed: {serviceBusMessage.Label} (id={{MessageId}}, service={{Service}}, origin={{MessageOrigin}}, size={serviceBusMessage.Body.Length.Bytes().ToString("#.##")})",
LogPropertyKeys.TrackReceiveMessage, args: new[] { message?.Id, messageScope, message.Origin });
logger.LogTrace(LogKeys.AppMessaging, message.Id, serviceBusMessage.Label, LogTraceNames.Message);
// construct the handler by using the DI container
var handler = handlerFactory.Create(subscription.HandlerType); // should not be null, did you forget to register your generic handler (EntityMessageHandler<T>)
var concreteType = typeof(IMessageHandler <>).MakeGenericType(messageType);
var method = concreteType.GetMethod("Handle");
if (handler != null && method != null)
{
if (mediator != null)
{
await mediator.Publish(new MessageHandledDomainEvent(message, messageScope)).AnyContext();
}
await((Task)method.Invoke(handler, new object[] { message as object })).AnyContext();
}
else
{
logger.LogWarning("{LogKey:l} process failed, message handler could not be created. is the handler registered in the service provider? (name={MessageName}, service={Service}, id={MessageId}, origin={MessageOrigin})",
LogKeys.AppMessaging, serviceBusMessage.Label, messageScope, message.Id, message.Origin);
}
}
}
processed = true;
}
else
{
logger.LogDebug($"{{LogKey:l}} unprocessed: {messageName}", LogKeys.AppMessaging);
}
return(processed);
}
HttpClientHandler IMessageHandlerFactory.Create()
{
return(_messageHandlerFactory.Create());
}
