/// <summary>Restart the consumer.</summary>
/// <param name="consumer">The consumer.</param>
internal void Restart(BlockingQueueConsumer consumer)
{
lock (this.consumersMonitor)
{
if (this.consumers != null)
{
try
{
// Need to recycle the channel in this consumer
consumer.Stop();
// Ensure consumer counts are correct (another is not going
// to start because of the exception, but
// we haven't counted down yet)
this.cancellationLock.Release(consumer);
this.consumers.Remove(consumer);
consumer = this.CreateBlockingQueueConsumer();
this.consumers.Add(consumer);
}
catch (Exception e)
{
Logger.Warn(m => m("Consumer failed irretrievably on restart. {0}: {1}", e.Source, e.Message));
// Re-throw and have it logged properly by the caller.
throw;
}
var processor = new AsyncMessageProcessingConsumer(consumer, this);
var taskExecutor = new Task(processor.Run);
taskExecutor.Start();
}
}
}
/// <summary>
/// Perform start actions.
/// </summary>
protected override void DoStart()
{
base.DoStart();
lock (this.consumersMonitor)
{
var newConsumers = this.InitializeConsumers();
if (this.consumers == null)
{
Logger.Info(m => m("Consumers were initialized and then cleared (presumably the container was stopped concurrently)"));
return;
}
if (newConsumers <= 0)
{
Logger.Info(m => m("Consumers are already running"));
return;
}
var processors = new HashSet <AsyncMessageProcessingConsumer>();
foreach (var consumer in this.consumers)
{
var processor = new AsyncMessageProcessingConsumer(consumer, this);
processors.Add(processor);
var taskExecutor = new Task(processor.Run);
taskExecutor.Start();
}
foreach (var processor in processors)
{
var startupException = processor.GetStartupException();
if (startupException != null)
{
throw new AmqpIllegalStateException("Fatal exception on listener startup", startupException);
}
}
}
}
/// <summary>
/// Perform start actions.
/// </summary>
/// <exception cref="AmqpException">
/// </exception>
protected override void DoStart()
{
base.DoStart();
lock (this.consumersMonitor)
{
this.InitializeConsumers();
if (this.consumers == null)
{
this.logger.Info("Consumers were initialized and then cleared (presumably the container was stopped concurrently)");
return;
}
var processors = new HashSet<AsyncMessageProcessingConsumer>();
foreach (var consumer in this.consumers)
{
var processor = new AsyncMessageProcessingConsumer(consumer, this);
processors.Add(processor);
this.taskExecutor.Execute(processor);
}
foreach (var processor in processors)
{
var startupException = processor.GetStartupException();
if (startupException != null)
{
throw new AmqpException("Fatal exception on listener startup", startupException);
}
}
}
}
/// <summary>Restart the consumer.</summary>
/// <param name="consumer">The consumer.</param>
internal void Restart(BlockingQueueConsumer consumer)
{
lock (this.consumersMonitor)
{
if (this.consumers != null)
{
try
{
// Need to recycle the channel in this consumer
consumer.Stop();
// Ensure consumer counts are correct (another is not going
// to start because of the exception, but
// we haven't counted down yet)
this.cancellationLock.Release(consumer);
this.consumers.Remove(consumer);
consumer = this.CreateBlockingQueueConsumer();
this.consumers.Add(consumer);
}
catch (Exception e)
{
Logger.Warn(m => m("Consumer failed irretrievably on restart. {0}: {1}", e.Source, e.Message));
// Re-throw and have it logged properly by the caller.
throw;
}
var processor = new AsyncMessageProcessingConsumer(consumer, this);
var taskExecutor = new Task(processor.Run);
taskExecutor.Start();
}
}
}
