public Task Dispatch(IIntegrationMessage message, MessageMetaData metaData, IEndpoint endpoint, IOutboxSession outboxSession = null)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (endpoint == null)
{
throw new ArgumentNullException(nameof(endpoint));
}
OutboundMessagePipeline messagePipeline = null;
if (_endpointOutboundPipeline.ContainsKey(endpoint))
{
messagePipeline = _endpointOutboundPipeline[endpoint];
}
else
{
messagePipeline = new OutboundMessagePipeline(endpoint.Settings.OutboundIntegrationFilters, endpoint.Settings.OutboundTransportFilters);
_endpointOutboundPipeline[endpoint] = messagePipeline;
}
var resultContext = messagePipeline.Process(new IntegrationMessageFilterContext(message, metaData, endpoint, FilterDirection.Outbound, null));
if (outboxSession != null)//dispatch through the outbox
{
OutboxDispatchOptions options = new OutboxDispatchOptions()
{
};
if (metaData != null)
{
if (metaData.DispatchDelay.HasValue && !endpoint.SupportsDelayedDispatch)
{
options.Delay = metaData.DispatchDelay;
options.SkipTransientDispatch = true; // for safety because we set delay
}
else
{
options.SkipTransientDispatch = metaData.SkipTransientDispatch;
}
options.ExpiresAtUtc = metaData.ExpiresAtUtc;
}
return(outboxSession.Dispatch(message.MessageType, resultContext.TransportMessage.Data, resultContext.TransportMessage.MetaData, endpoint, options));
}
//dispatch to the endpoint
return(DispatchCore(message.MessageType, resultContext.TransportMessage.Data, resultContext.TransportMessage.MetaData, endpoint));
}
private Task _addToContext(string messageTypeIdentifier, byte[] message, MessageMetaData meta, IEndpoint endpoint = null, OutboxDispatchOptions options = null)
{
options = options ?? new OutboxDispatchOptions();
double delayInSeconds = 0; //send immediately
bool skipTransient = _outbox.DisableTransientDispatch;
if (!skipTransient)
{
skipTransient = options.SkipTransientDispatch;//check at the message level
}
if (options.Delay.HasValue)
{
delayInSeconds = options.Delay.Value.TotalSeconds;
}
var priorityDateUtc = DateTime.UtcNow.AddSeconds(delayInSeconds);
var outboxMessage = new OutboxMessage(
messageTypeIdentifier,
message,
meta != null ? JsonConvert.SerializeObject(meta) : null,
priorityDateUtc,
endpoint?.Name,
skipTransient,
options.ExpiresAtUtc);
//add the message for persistance with the dbcontext
_dbContext.Add(outboxMessage);
if (!outboxMessage.SkipTransientDispatch)
{
this._transientMessageQueue.Enqueue(outboxMessage);
}
return(Task.CompletedTask);
}
/// <summary>
/// Record the message to the outbox within the current transaction/ Unit of Work
/// </summary>
/// <param name="event"></param>
/// <returns></returns>
public Task Dispatch(string messageTypeIdentifier, byte[] message, MessageMetaData meta, IEndpoint endpoint = null, OutboxDispatchOptions options = null)
{
return(this._addToContext(messageTypeIdentifier, message, meta, endpoint, options));
}