public override IFetchedJob FetchNextJob(string[] queues, CancellationToken cancellationToken)
{
if (queues == null || queues.Length == 0)
{
throw new ArgumentNullException(nameof(queues));
}
var providers = queues
.Select(queue => _queueProviders.GetProvider(queue))
.Distinct()
.ToArray();
if (providers.Length != 1)
{
throw new InvalidOperationException(
$"Multiple provider instances registered for queues: {String.Join(", ", queues)}. You should choose only one type of persistent queues per server instance.");
}
var persistentQueue = providers[0].GetJobQueue(_connection);
return(persistentQueue.Dequeue(queues, cancellationToken));
}
