private void PublishMessage(ProducerChannel channel, DatabaseMessage message)
{
string exchange = Settings.MessageBrokerSettings.TopicExchange;
string routingKey = message.MessageType;
byte[] messageBytes = Encoding.UTF8.GetBytes(message.MessageBody);
ConfigureMessageProperties(message, channel.Properties);
channel.Channel.BasicPublish(exchange, routingKey, channel.Properties, messageBytes);
}
private ulong CalculateDeliveryTagToWait(ProducerChannel producerChannel)
{
ulong deliveryTag = 0;
foreach (Queue <DatabaseMessage> queue in producerChannel.Queues)
{
deliveryTag += (ulong)queue.Count;
}
deliveryTag += (producerChannel.Channel.NextPublishSeqNo - 1);
return(deliveryTag);
}
private int PublishMessagesInBackground(object id)
{
int channelId = (int)id;
ProducerChannel producerChannel = ProducerChannels[channelId];
int messagesSent = 0;
producerChannel.DeliveryTagToWait = CalculateDeliveryTagToWait(producerChannel);
foreach (Queue <DatabaseMessage> queue in producerChannel.Queues)
{
while (queue.TryDequeue(out DatabaseMessage message))
{
if (SendingCancellation.IsCancellationRequested)
{
return(0);
}
try
{
PublishMessage(producerChannel, message);
messagesSent++;
}
catch (Exception error)
{
ProducerExceptions.Enqueue(error);
SendingCancellation.Cancel();
}
}
}
if (messagesSent > 0)
{
WaitForConfirms(producerChannel);
}
return(messagesSent);
}
private void WaitForConfirms(ProducerChannel channel)
{
try
{
int confirmationTimeout = Settings.MessageBrokerSettings.ConfirmationTimeout;
if (confirmationTimeout < 600)
{
confirmationTimeout = 600; // Добавлено для совместимости со старыми версиями
}
bool confirmed = channel.Channel.WaitForConfirms(TimeSpan.FromSeconds(confirmationTimeout), out bool timedout);
if (!confirmed)
{
ProducerExceptions.Enqueue(new OperationCanceledException(PUBLISHER_CONFIRMATION_ERROR_MESSAGE));
SendingCancellation.Cancel();
}
else if (timedout)
{
ProducerExceptions.Enqueue(new OperationCanceledException(PUBLISHER_CONFIRMATION_TIMEOUT_MESSAGE));
SendingCancellation.Cancel();
}
}
catch (OperationInterruptedException rabbitError)
{
ProducerExceptions.Enqueue(rabbitError);
if (string.IsNullOrWhiteSpace(rabbitError.Message) || !rabbitError.Message.Contains("NOT_FOUND"))
{
SendingCancellation.Cancel();
}
}
catch (Exception error)
{
ProducerExceptions.Enqueue(error);
SendingCancellation.Cancel();
}
}
