protected void BindQueue(QueueConfiguration queue, ExchangeConfiguration exchange, string routingKey)
{
if (exchange.IsDefaultExchange())
{
/*
"The default exchange is implicitly bound to every queue,
with a routing key equal to the queue name. It it not possible
to explicitly bind to, or unbind from the default exchange."
*/
return;
}
if (queue.IsDirectReplyTo())
{
/*
"Consume from the pseudo-queue amq.rabbitmq.reply-to in no-ack mode. There is no need to
declare this "queue" first, although the client can do so if it wants."
- https://www.rabbitmq.com/direct-reply-to.html
*/
return;
}
_logger.LogDebug($"Binding queue {queue.QueueName} to exchange {exchange.ExchangeName} with routing key {routingKey}");
ChannelFactory
.GetChannel()
.QueueBind(
queue: queue.FullQueueName,
exchange: exchange.ExchangeName,
routingKey: routingKey
);
}
protected void DeclareQueue(QueueConfiguration queue, IModel channel = null)
{
if (queue.IsDirectReplyTo())
{
/*
"Consume from the pseudo-queue amq.rabbitmq.reply-to in no-ack mode. There is no need to
declare this "queue" first, although the client can do so if it wants."
- https://www.rabbitmq.com/direct-reply-to.html
*/
return;
}
channel = channel ?? ChannelFactory.GetChannel();
channel
.QueueDeclare(
queue: queue.FullQueueName,
durable: queue.Durable,
exclusive: queue.Exclusive,
autoDelete: queue.AutoDelete,
arguments: queue.Arguments
);
_logger.LogDebug($"Declaring queue\n Name: {queue.FullQueueName}\n Exclusive: {queue.Exclusive}\n Durable: {queue.Durable}\n Autodelete: {queue.AutoDelete}");
}
public Task BindQueueAsync(QueueConfiguration queue, ExchangeConfiguration exchange, string routingKey)
{
if (exchange.IsDefaultExchange())
{
/*
"The default exchange is implicitly bound to every queue,
with a routing key equal to the queue name. It it not possible
to explicitly bind to, or unbind from the default exchange."
*/
return _completed;
}
if (queue.IsDirectReplyTo())
{
/*
"Consume from the pseudo-queue amq.rabbitmq.reply-to in no-ack mode. There is no need to
declare this "queue" first, although the client can do so if it wants."
- https://www.rabbitmq.com/direct-reply-to.html
*/
return _completed;
}
var bindKey = $"{queue.FullQueueName}_{exchange.ExchangeName}_{routingKey}";
if (_queueBinds.Contains(bindKey))
{
return _completed;
}
var scheduled = new ScheduledBindQueueTask
{
Queue = queue,
Exchange = exchange,
RoutingKey = routingKey
};
_topologyTasks.Enqueue(scheduled);
EnsureWorker();
return scheduled.TaskCompletionSource.Task;
}
public bool IsInitialized(QueueConfiguration queue)
{
return queue.IsDirectReplyTo() || queue.AssumeInitialized || _initQueues.Contains(queue.FullQueueName);
}
public Task CreateQueueAsync(QueueConfiguration queue)
{
Task existingTask;
if (_initQueues.TryGetValue(queue.FullQueueName, out existingTask))
{
return existingTask;
}
if (queue.IsDirectReplyTo())
{
/*
"Consume from the pseudo-queue amq.rabbitmq.reply-to in no-ack mode. There is no need to
declare this "queue" first, although the client can do so if it wants."
- https://www.rabbitmq.com/direct-reply-to.html
*/
_initQueues.TryAdd(queue.FullQueueName, _completed);
return _completed;
}
var queueTask = _channelFactory
.GetChannelAsync()
.ContinueWith(tChannel =>
{
tChannel.Result.QueueDeclare(
queue.FullQueueName,
queue.Durable,
queue.Exclusive,
queue.AutoDelete,
queue.Arguments);
});
_initQueues.TryAdd(queue.FullQueueName, queueTask);
return queueTask;
}
