private MessagingEnvelope <TMessage> PrepareMessageEnvelope <TMessage>(TMessage message, Action <MessagingEnvelope> customizer = null)
{
var outgoingEnvelope = new MessagingEnvelope <TMessage>(new Dictionary <string, string>
{
[MessagingHeaders.MessageId] = Guid.NewGuid().ToString(),
[MessagingHeaders.PublishTime] = DateTime.Now.ToString(CultureInfo.InvariantCulture)
}, message);
if (message is IKeyProvider messageKeyProvider)
{
outgoingEnvelope.Headers[MessagingHeaders.StreamId] = messageKeyProvider.Key;
}
var sourceId = GetSourceId();
if (!string.IsNullOrWhiteSpace(sourceId))
{
outgoingEnvelope.Headers[MessagingHeaders.Source] = sourceId;
}
customizer?.Invoke(outgoingEnvelope);
outgoingEnvelope.SetHeader(MessagingHeaders.CorrelationId, Guid.NewGuid().ToString());
return(outgoingEnvelope);
}
public static void TransferHeaderTo(this MessagingEnvelope envelope, MessagingEnvelope destinationEnvelope, string header, bool overwrite = false)
{
if (!envelope.Headers.ContainsKey(header))
{
return;
}
destinationEnvelope.SetHeader(header, envelope.Headers[header], overwrite);
}
public string SerializeMessageEnvelope(MessagingEnvelope message, MessageSerDesOptions options = null)
{
var messageTypeId = _messageTypeRegistry.GetTypeId(message.Payload.GetType());
message.SetHeader(MessagingHeaders.MessageType, messageTypeId, true);
var json = JsonConvert.SerializeObject(message, new JsonSerializerSettings()
{
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
});
return(json);
}
