private async Task SetupSubscription(Type type, string queueName)
{
var createQueueResponse = await this.sqsService.CreateQueue(queueName);
var errorQueueName = $"{queueName}_error";
var createErrorQueueResponse = await this.sqsService.CreateQueue(errorQueueName);
var createTopicResponse = await this.snsService.CreateTopic(queueName);
await this.snsService.SubscribeQueueAsync(createTopicResponse.TopicArn, createQueueResponse.QueueUrl);
if (Queues.ContainsKey(queueName))
{
Queues[queueName] = new QueueInfo(type, createQueueResponse.QueueUrl);
}
else
{
Queues.Add(queueName, new QueueInfo(type, createQueueResponse.QueueUrl));
}
if (Queues.ContainsKey(errorQueueName))
{
Queues[errorQueueName] = new QueueInfo(type, createErrorQueueResponse.QueueUrl);
}
else
{
Queues.Add(errorQueueName, new QueueInfo(type, createErrorQueueResponse.QueueUrl));
}
}
public async Task CheckForMessages <T>(QueueInfo queue) where T : Message
{
var queueUrl = queue.Url;
var response = this.sqsService.ReceiveMessageAsync(queueUrl);
if (response.Result.Messages.Count > 0)
{
var busMessage = response.Result.Messages.First();
T message = messageDeserializer.Deserialize <T>(busMessage);
IHandlerAsync <T> handler = this.messageBus.GetHandler <T>();
if (handler != null)
{
var isSuccess = await handler.Handle(message);
if (isSuccess)
{
await this.DeleteMessageAsync(queueUrl, busMessage.ReceiptHandle);
}
}
}
}
