private IEnumerable <Dictionary <string, object> > RecieveMessages(ServiceBusSettings settings, ServiceBusReceiver reciever, ILogger logger)
{
int total = 0;
int batchSize;
while (true)
{
if (settings.MaxNumberOfMessages - total >= settings.BatchSize)
{
batchSize = settings.BatchSize;
}
else
{
batchSize = settings.MaxNumberOfMessages - total;
}
var messages = new IServiceBusMessage[0];
if (batchSize <= 0)
{
break;
}
var messagesTask = Task.Run(() =>
{
try
{
return(reciever.ReceiveMessageBatchAsync(batchSize, TimeSpan.FromSeconds(MessageBusWaitTime)));
}
catch (Exception ex)
{
logger.Error($"Cannot receive messages. {Environment.NewLine}{ex}");
return(Task.FromResult(new IServiceBusMessage[0]));
}
});
messages = messagesTask.Result ?? new IServiceBusMessage[0];
total += messages.Length;
// no message in queue => let's finish
if (messages.Length == 0)
{
break;
}
// enumerate messages
for (int j = 0; j < messages.Length; j++)
{
var oneLevelMessage = new Dictionary <string, object>(messages[j].Properties);
oneLevelMessage.Add("ID", messages[j].Id);
logger.Debug($"Enumerating message with consultant '{messages[j].Id}'.");
logger.Debug($"oneLevelMessage: '{string.Join(";", oneLevelMessage)}'.");
yield return(oneLevelMessage);
}
}
}
