/// <summary>
/// Creates a <see cref="ISentMessage"/> wrapper for the specified
/// <paramref name="message"/> and stores it in cache
/// </summary>
/// <param name="message">The recently sent message</param>
/// <returns>Returns a <see cref="ISentMessage"/> that can be used to listen
/// for replies</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="message"/>
/// is <c>null</c></exception>
public ISentMessage CreateSentMessage(Message message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
CheckDisposed();
var messageId = message.Headers.MessageId;
var replyStreamExpiration = DateTime.UtcNow.Add(_replyTimeout);
#if NET452 || NET461
var newReplyStream = new ReplyStream();
var replyStream = (ReplyStream)_cache.AddOrGetExisting(messageId, newReplyStream, replyStreamExpiration);
// ReSharper disable once ConvertIfStatementToNullCoalescingExpression
if (replyStream == null)
{
// MemoryCache.AddOrGetExisting returns null if the key does not
// already exist, so use the one we just created. See:
// http://msdn.microsoft.com/en-us/library/dd988741%28v=vs.110%29.aspx
replyStream = newReplyStream;
}
return(new SentMessageWithCachedReplies(messageId, replyStream));
#endif
#if NETSTANDARD2_0
var replyStream = _cache.GetOrCreate(messageId, entry =>
{
entry.AbsoluteExpiration = replyStreamExpiration;
return(new ReplyStream());
});
return(new SentMessageWithCachedReplies(messageId, replyStream));
#endif
}
public SentMessageWithCachedReplies(MessageId messageId, ReplyStream replyStream)
{
if (messageId == null)
{
throw new ArgumentNullException(nameof(messageId));
}
MessageId = messageId;
_replyStream = replyStream ?? throw new ArgumentNullException(nameof(replyStream));
}