public BurrowConsumer(IModel channel,
IMessageHandler messageHandler,
IRabbitWatcher watcher,
bool autoAck,
int batchSize)
: base(channel, new SharedQueue())
{
if (channel == null)
{
throw new ArgumentNullException("channel");
}
if (messageHandler == null)
{
throw new ArgumentNullException("messageHandler");
}
if (watcher == null)
{
throw new ArgumentNullException("watcher");
}
if (batchSize < 1)
{
throw new ArgumentNullException("batchSize", "batchSize must be greater than or equal 1");
}
Model.ModelShutdown += WhenChannelShutdown;
Model.BasicRecoverAsync(true);
BatchSize = batchSize;
_pool = new Semaphore(BatchSize, BatchSize);
_watcher = watcher;
_autoAck = autoAck;
_messageHandler = messageHandler;
_messageHandler.HandlingComplete += MessageHandlerHandlingComplete;
_subscriptionCallbackThread = new Thread(_ =>
{
Thread.CurrentThread.Name = string.Format("Consumer thread: {0}", ConsumerTag);
while (!_disposed)
{
try
{
BasicDeliverEventArgs deliverEventArgs;
lock (_sharedQueueLock)
{
_pool.WaitOne();
deliverEventArgs = (BasicDeliverEventArgs) Queue.Dequeue();
}
if (deliverEventArgs != null)
{
_messageHandler.BeforeHandlingMessage(this, deliverEventArgs);
HandleMessageDelivery(deliverEventArgs);
}
}
catch(ThreadAbortException)
{
_watcher.WarnFormat("The consumer thread {0} is aborted", ConsumerTag);
}
catch (EndOfStreamException)
{
// do nothing here, EOS fired when queue is closed
// Looks like the connection has gone away, so wait a little while
// before continuing to poll the queue
Thread.Sleep(10);
}
}
});
_subscriptionCallbackThread.Start();
}