static MessageReceiverNotifierSettings BuildMessageReceiverNotifierSettings(SettingsHolder settings)
{
// default values set by DefaultConfigurationValues.Apply - shouldn't hardcode those here, so OK to use settings
return(new MessageReceiverNotifierSettings(
ReceiveMode.PeekLock,
settings.HasExplicitValue <TransportTransactionMode>() ? settings.Get <TransportTransactionMode>() : settings.SupportedTransactionMode(),
settings.Get <TimeSpan>(WellKnownConfigurationKeys.Connectivity.MessageReceivers.AutoRenewTimeout),
settings.Get <int>(WellKnownConfigurationKeys.Connectivity.NumberOfClientsPerEntity)));
}
static void MatchSettingsToConsistencyRequirements(SettingsHolder settings)
{
if (settings.HasSetting <TransportTransactionMode>())
{
var required = settings.Get <TransportTransactionMode>();
if (required > TransportTransactionMode.SendsAtomicWithReceive)
{
throw new InvalidOperationException($"Azure Service Bus transport doesn't support the required transaction mode {required}.");
}
if (required > settings.SupportedTransactionMode())
{
throw new InvalidOperationException($"Azure Service Bus transport doesn't support the required transaction mode {required}, for the given configuration settings.");
}
if (required < settings.SupportedTransactionMode())
{
if (required < TransportTransactionMode.SendsAtomicWithReceive)
{
// turn send via off so that sends are not atomic
settings.Set(WellKnownConfigurationKeys.Connectivity.SendViaReceiveQueue, false);
}
if (required == TransportTransactionMode.None)
{
// immediately delete after receive
settings.Set(WellKnownConfigurationKeys.Connectivity.MessageReceivers.ReceiveMode, ReceiveMode.ReceiveAndDelete);
// override the default for prefetch count, but user code can still take precedence
settings.SetDefault(WellKnownConfigurationKeys.Connectivity.MessageReceivers.PrefetchCount, 0);
if (!settings.HasExplicitValue(WellKnownConfigurationKeys.Connectivity.MessageReceivers.PrefetchCount))
{
logger.Warn("Default value for message receiver's PrefetchCount was reduced to zero to avoid message loss with ReceiveAndDelete receive mode. To enforce prefetch, use the configuration API to set the value explicitly.");
}
}
}
}
}