public MessageReceiveBuffer(
int prefetch,
int bufferSize,
TimeSpan readTimeout,
TimeSpan sqsWaitTime,
ISqsQueue sqsQueue,
MiddlewareBase <ReceiveMessagesContext, IList <Message> > sqsMiddleware,
IMessageMonitor monitor,
ILogger <IMessageReceiveBuffer> logger,
IMessageBackoffStrategy messageBackoffStrategy = null)
{
_prefetch = prefetch;
_bufferSize = bufferSize;
_readTimeout = readTimeout;
_sqsWaitTime = sqsWaitTime;
if (sqsQueue == null)
{
throw new ArgumentNullException(nameof(sqsQueue));
}
_sqsQueueReader = new SqsQueueReader(sqsQueue);
_sqsMiddleware = sqsMiddleware ?? throw new ArgumentNullException(nameof(sqsMiddleware));
_monitor = monitor ?? throw new ArgumentNullException(nameof(monitor));
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_backoffStrategyName = messageBackoffStrategy?.GetType()?.Name;
_channel = Channel.CreateBounded <IQueueMessageContext>(bufferSize);
if (messageBackoffStrategy != null)
{
_requestMessageAttributeNames.Add(MessageSystemAttributeName.ApproximateReceiveCount);
}
}
private async Task When()
{
var queueReader = new SqsQueueReader(_queue);
await SystemUnderTest.DispatchMessageAsync(queueReader.ToMessageContext(_sqsMessage), CancellationToken.None);
}
/// <summary>
/// A handle for a given message to be deleted from the queue it was read from.
/// </summary>
/// <param name="message">The <see cref="Amazon.SQS.Model.Message"/> to be handled.</param>
/// <param name="queueReader">The <see cref="SqsQueueReader"/> the message was read from.</param>
internal QueueMessageContext(Message message, SqsQueueReader queueReader)
{
Message = message ?? throw new ArgumentNullException(nameof(message));
_queueReader = queueReader ?? throw new ArgumentNullException(nameof(queueReader));
}