private string CreateMessagingErrorMessage(string description, object payload)
{
return(description + "\n"
+ "Endpoint handler details:\n"
+ "Method [" + HandlerAdapter.GetMethodAsString(payload) + "]\n"
+ "Bean [" + HandlerAdapter.Instance + "]");
}
private void ReturnOrThrow(Message amqpMessage, IModel channel, IMessage message, Exception exceptionToRetrun, Exception exceptionToThrow)
{
if (!ReturnExceptions)
{
throw exceptionToThrow;
}
try
{
HandleResult(
new InvocationResult(
exceptionToRetrun,
null,
HandlerAdapter.GetReturnTypeFor(message.Payload),
HandlerAdapter.Instance,
HandlerAdapter.GetMethodFor(message.Payload)),
amqpMessage,
channel,
message);
}
catch (ReplyFailureException rfe)
{
if (typeof(void).Equals(HandlerAdapter.GetReturnTypeFor(message.Payload)))
{
throw exceptionToThrow;
}
else
{
throw;
}
}
}
protected void InvokeHandlerAndProcessResult(Message amqpMessage, IModel channel, IMessage message)
{
_logger?.LogDebug("Processing [" + message + "]");
InvocationResult result = null;
try
{
if (MessagingMessageConverter.Method == null)
{
amqpMessage.MessageProperties.TargetMethod = HandlerAdapter.GetMethodFor(message.Payload);
}
result = InvokeHandler(amqpMessage, channel, message);
if (result.ReturnValue != null)
{
HandleResult(result, amqpMessage, channel, message);
}
else
{
_logger?.LogTrace("No result object given - no result to handle");
}
}
catch (ListenerExecutionFailedException e)
{
if (ErrorHandler != null)
{
try
{
var messageWithChannel = Messaging.Support.MessageBuilder.FromMessage(message).SetHeader(AmqpHeaders.CHANNEL, channel).Build();
var errorResult = ErrorHandler.HandleError(amqpMessage, messageWithChannel, e);
if (errorResult != null)
{
HandleResult(HandlerAdapter.GetInvocationResultFor(errorResult, message.Payload), amqpMessage, channel, message);
}
else
{
_logger?.LogTrace("Error handler returned no result");
}
}
catch (Exception ex)
{
ReturnOrThrow(amqpMessage, channel, message, ex, ex);
}
}
else
{
ReturnOrThrow(amqpMessage, channel, message, e.InnerException, e);
}
}
}
private InvocationResult InvokeHandler(Message amqpMessage, IModel channel, IMessage message)
{
try
{
return(HandlerAdapter.Invoke(message, amqpMessage, channel));
}
catch (MessagingException ex)
{
throw new ListenerExecutionFailedException(
CreateMessagingErrorMessage("Listener method could not be invoked with the incoming message", message.Payload), ex, amqpMessage);
}
catch (Exception ex)
{
throw new ListenerExecutionFailedException("Listener method '" + HandlerAdapter.GetMethodAsString(message.Payload) + "' threw exception", ex, amqpMessage);
}
}
