async Task FetchLength(QueueLengthValue queueLength, CancellationToken token)
{
try
{
var queueReference = queueLength.QueueReference;
await queueReference.FetchAttributesAsync(token).ConfigureAwait(false);
queueLength.Length = queueReference.ApproximateMessageCount.GetValueOrDefault();
problematicQueuesNames.TryRemove(queueLength.QueueName, out _);
}
catch (OperationCanceledException)
{
// no-op
}
catch (Exception ex)
{
// simple "log once" approach to do not flood logs
if (problematicQueuesNames.TryAdd(queueLength.QueueName, queueLength.QueueName))
{
Logger.Error($"Obtaining Azure Storage Queue count failed for '{queueLength.QueueName}'", ex);
}
}
}
public void TrackEndpointInputQueue(EndpointToQueueMapping queueToTrack)
{
var queueName = BackwardsCompatibleQueueNameSanitizer.Sanitize(queueToTrack.InputQueue);
var queueClient = CloudStorageAccount.Parse(connectionString).CreateCloudQueueClient();
var emptyQueueLength = new QueueLengthValue
{
QueueName = queueName,
Length = 0,
QueueReference = queueClient.GetQueueReference(queueName)
};
queueLengths.AddOrUpdate(queueToTrack, _ => emptyQueueLength, (_, existingQueueLength) => existingQueueLength);
}
public void Process(EndpointInstanceId endpointInstanceId, EndpointMetadataReport metadataReport)
{
var endpointInputQueue = new EndpointInputQueue(endpointInstanceId.EndpointName, metadataReport.LocalAddress);
var queueName = QueueNameSanitizer.Sanitize(metadataReport.LocalAddress);
var queueClient = CloudStorageAccount.Parse(connectionString).CreateCloudQueueClient();
var emptyQueueLength = new QueueLengthValue
{
QueueName = queueName,
Length = 0,
QueueReference = queueClient.GetQueueReference(queueName)
};
queueLengths.AddOrUpdate(endpointInputQueue, _ => emptyQueueLength, (_, existingQueueLength) => existingQueueLength);
}