public async Task Process(OutboxMessage message, CancellationToken cancellationToken = default)
{
try
{
IDictionary <string, object> messageContext = new Dictionary <string, object>();
if (!string.IsNullOrWhiteSpace(message.MessageContext))
{
messageContext = JsonConvert.DeserializeObject <IDictionary <string, object> >(message.MessageContext);
}
var contentType = message.MessageContentType;
if (string.IsNullOrWhiteSpace(message.MessageContentType))
{
contentType = (string)messageContext[MessageContext.ContentType];
_logger.LogTrace($"Outbox message did not contain content type. Retrieved from message context.");
}
messageContext.TryGetValue(MessageContext.InfrastructureType, out var infra);
var dispatcherInfrastructure = _infrastructureProvider.GetDispatcher((string)infra);
if (string.IsNullOrWhiteSpace(contentType))
{
_logger.LogTrace($"No content type set in outbox message or message context. Unable to dispatch message.");
throw new ArgumentNullException(nameof(contentType), "A content type is required to serialize and send brokered message.");
}
var converter = _bodyConverterFactory.CreateBodyConverter(contentType);
var outbound = new OutboundBrokeredMessage(message.MessageId, converter.GetBytes(message.MessageBody), messageContext, message.Destination, converter);
_logger.LogTrace($"Processing message '{message.MessageId}' from outbox.");
await((IUnitOfWork)_brokeredMessageOutbox).ExecuteAsync(async ct =>
{
await _brokeredMessageOutbox.UpdateProcessedDate(message, ct);
await dispatcherInfrastructure.Dispatch(outbound, null);
_logger.LogTrace($"Message '{message.MessageId}' dispatched to messaging infrastructure from outbox.");
}, null, cancellationToken);
}
catch (Exception e)
{
_logger.LogError(e, $"Unable to process outbox message with id '{message.Id}'");
}
}
internal static OutboundBrokeredMessage AsOutboundBrokeredMessage(this OutboxMessage outboxMessage, IDictionary <string, object> appProperties, IBrokeredMessageBodyConverter brokeredMessageBodyConverter) => new OutboundBrokeredMessage(outboxMessage.MessageId, outboxMessage.Body, appProperties, outboxMessage.Destination, brokeredMessageBodyConverter);
