/// <summary>
/// This is the main entry point for your service replica.
/// This method executes when this replica of your service becomes primary and has write status.
/// </summary>
/// <param name="cancellationToken">Canceled when Service Fabric needs to shut down this service replica.</param>
protected override async Task RunAsync(CancellationToken cancellationToken)
{
try
{
_freeHandlers = Enumerable.Range(1, HandlerCount).ToConcurrentQueue();
await SetupServiceBus();
while (!cancellationToken.IsCancellationRequested)
{
try
{
//if (_messageReceiver.IsClosedOrClosing)
//{
// _bigBrother.Publish(new MessageReceiverClosingEvent { FabricId = $"{this.Context.ServiceName}:{this.Context.ReplicaId}" });
// continue;
//}
var(messages, activeReaderId) = await ReceiveMessagesFromActiveReceiver();
await ServiceReceiversLifecycle();
if (messages == null || messages.Count == 0)
{
// ReSharper disable once MethodSupportsCancellation - no need to cancellation token here
#if DEBUG
//this is done due to enable SF mocks to run as receiver call is not awaited and therefore RunAsync would never await
await Task.Delay(TimeSpan.FromMilliseconds(10));
#endif
continue;
}
foreach (var message in messages)
{
var messageData = new MessageData(Encoding.UTF8.GetString(message.Body), _initData.EventType, _initData.SubscriberName, Context.ServiceName.ToString(), _initData.DlqMode != null);
var handlerId = GetFreeHandlerId();
messageData.HandlerId = handlerId;
messageData.CorrelationId = Guid.NewGuid().ToString();
var handleData = new MessageDataHandle
{
LockToken = _serviceBusManager.GetLockToken(message),
ReceiverId = activeReaderId
};
_inflightMessages.TryAdd(messageData.CorrelationId, handleData); //should again always succeed
await _proxyFactory.CreateActorProxy <IEventHandlerActor>(
new ActorId(messageData.EventHandlerActorId),
serviceName : ServiceNaming.EventHandlerServiceShortName)
.Handle(messageData);
}
}
catch (ServiceBusCommunicationException sbCommunicationException)
{
BigBrother.Write(sbCommunicationException.ToExceptionEvent());
await SetupServiceBus();
}
catch (Exception e)
{
BigBrother.Write(e.ToExceptionEvent());
}
}
_bigBrother.Publish(new Common.Telemetry.CancellationRequestedEvent {
FabricId = $"{Context.ServiceName}:{Context.ReplicaId}"
});
}
catch (Exception e)
{
BigBrother.Write(e.ToExceptionEvent());
}
}