public IDisposable Subscribe(Endpoint endpoint, CallbackDelegate <BinaryMessage> callback, string messageType, string processingGroup, int priority)
{
var subscriptionHandler = new MultipleAssignmentDisposable();
Action <int> doSubscribe = null;
doSubscribe = attemptNumber =>
{
if (subscriptionHandler.IsDisposed)
{
return;
}
if (attemptNumber > 0)
{
m_Logger.Info("Resubscribing for endpoint {0}. Attempt# {1}", endpoint, attemptNumber);
}
else
{
m_Logger.Info("Subscribing for endpoint {0}", endpoint);
}
try
{
var procGroup = m_TransportManager.GetProcessingGroup(endpoint.TransportId, processingGroup ?? endpoint.Destination.ToString(),
() => {
m_Logger.Info("Subscription for endpoint {0} failure detected. Attempting subscribe again.", endpoint);
doSubscribe(0);
});
var subscription = procGroup.Subscribe(endpoint.Destination.Subscribe, (message, ack) => callback(message, createDeferredAcknowledge(ack)),
messageType, priority);
var brokenSubscription = subscriptionHandler.Disposable;
subscriptionHandler.Disposable = subscription;
try
{
if (attemptNumber > 0)
{
brokenSubscription.Dispose();
}
}catch {}
m_Logger.Info("Subscribed for endpoint {0}", endpoint);
}
catch (Exception e)
{
m_Logger.ErrorException(string.Format("Failed to subscribe for endpoint {0}. Attempt# {1}. Will retry in {2}ms", endpoint, attemptNumber, m_ResubscriptionTimeout), e);
scheduleSubscription(doSubscribe, attemptNumber + 1);
}
};
doSubscribe(0);
return(subscriptionHandler);
}
