/// <summary>
/// Flushes the message box message given by <param name="posts"> to the broker.
/// Intended for use with the Outbox pattern: http://gistlabs.com/2014/05/the-outbox/ <see cref="DepositPostBox"/>
/// </summary>
/// <param name="posts">The posts to flush</param>
public void ClearOutbox(params Guid[] posts)
{
if (_outBox == null)
{
throw new InvalidOperationException("No outbox defined.");
}
if (_messageProducer == null)
{
throw new InvalidOperationException("No message producer defined.");
}
foreach (var messageId in posts)
{
var message = _outBox.Get(messageId);
if (message == null)
{
throw new NullReferenceException($"Message with Id {messageId} not found in the Outbox");
}
_logger.Value.InfoFormat("Decoupled invocation of message: Topic:{0} Id:{1}", message.Header.Topic, messageId.ToString());
RetryAndBreakCircuit(() => { _messageProducer.Send(message); });
}
}
/// <summary>
/// Gets the selected messages from the store
/// </summary>
/// <param name="outBox">The store to retrieve from</param>
/// <param name="messageIds">The messages to retrieve</param>
/// <returns></returns>
private static IEnumerable <Message> GetMessagesFromOutBox(IAmAnOutbox <Message> outBox, IReadOnlyCollection <string> messageIds)
{
IEnumerable <Message> foundMessages = messageIds
.Select(messageId => outBox.Get(Guid.Parse(messageId)))
.Where(fm => fm != null)
.ToList();
if (foundMessages.Count() < messageIds.Count)
{
throw new IndexOutOfRangeException("Cannot find messages " +
string.Join(",", messageIds.Where(id => foundMessages.All(fm => fm.Id.ToString() != id.ToString())).ToArray()));
}
return(foundMessages);
}
