public override Task <QueuePublishResult> PublishAsync <T>(T message, QueueMessageContext messageContext,
PublishAsyncDelegate <T>?callback = null)
{
if (!FailOnPublish)
{
return(base.PublishAsync(message, messageContext, callback));
}
var result = new QueuePublishResult();
result.SetError("Middleware failed publish");
return(Task.FromResult(result));
}
/// <summary>
/// Formats and writes an queue publish error log message.
/// </summary>
/// <param name="logger">The <see cref="ILogger"/> to write to.</param>
/// <param name="queuePublishResult">The publish result to log.</param>
/// <param name="message">Format string of the log message in message template format. Example: <code>"User {User} logged in from {Address}"</code></param>
/// <param name="args">An object array that contains zero or more objects to format.</param>
/// <example>logger.LogError(queuePublishResult, "Error while processing request from {Address}", address)</example>
public static void LogError(this ILogger logger, QueuePublishResult queuePublishResult, string message,
params object[] args)
{
var newArgs = args.Append(queuePublishResult.GetErrorText());
if (queuePublishResult.Exception != null)
{
logger.LogError(queuePublishResult.Exception, "{Message}: {ErrorText}", message, newArgs);
}
else
{
logger.LogError("{Message}: {ErrorText}", message, newArgs);
}
}
protected override Task <QueuePublishResult> DoPublishAsync <T>(T message, QueueMessageContext messageContext)
{
var result = new QueuePublishResult();
try
{
var channel = GetOrCreateChannel <T>();
channel.Publish(message, messageContext);
}
catch (Exception ex)
{
result.SetException(ex);
}
return(Task.FromResult(result));
}
public virtual Task <QueuePublishResult> PublishAsync <T>(T message, QueueMessageContext messageContext,
PublishAsyncDelegate <T>?callback = null) where T : class
{
if (Next != null)
{
return(Next.PublishAsync(message, messageContext, callback));
}
if (callback != null)
{
return(callback(message, messageContext));
}
var result = new QueuePublishResult();
result.SetError("Message reached end of pipeline");
return(Task.FromResult(result));
}
