/// <summary>
/// Registers this endpoint as a subscriber by creating a subscription for the given topic, setting up
/// auto-forwarding from that subscription to this endpoint's input queue
/// </summary>
public async Task RegisterSubscriber(string topic, string subscriberAddress)
{
VerifyIsOwnInputQueueAddress(subscriberAddress);
topic = _nameFormatter.FormatTopicName(topic);
_log.Debug("Registering subscription for topic {topicName}", topic);
await _subscriptionExceptionIgnorant.Execute(async() =>
{
var topicDescription = await EnsureTopicExists(topic).ConfigureAwait(false);
var messageSender = GetMessageSender(Address);
var inputQueuePath = messageSender.Path;
var topicPath = topicDescription.Path;
var subscription = await GetOrCreateSubscription(topicPath, _subscriptionName).ConfigureAwait(false);
// if it looks fine, just skip it
if (subscription.ForwardTo == inputQueuePath)
{
return;
}
subscription.ForwardTo = inputQueuePath;
await _managementClient.UpdateSubscriptionAsync(subscription, _cancellationToken).ConfigureAwait(false);
_log.Info("Subscription {subscriptionName} for topic {topicName} successfully registered", _subscriptionName, topic);
}, _cancellationToken);
}
/// <summary>
/// Formats the topic name into a usable name on ASB, normalizing if needed.
/// </summary>
public string FormatTopicName(string topicName)
{
return(_innerFormatter.FormatTopicName(_prefix + topicName));
}