async Task PublishApplicationMessageAsync(ProcessingCommand processingCommand, IApplicationMessage applicationMessage) { var result = await Policy .Handle <Exception>() .OrResult <AsyncExecutedResult>(r => !r.Succeeded) .WaitAndRetryForeverAsync( retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)), (delegateResult, retryCount, retryAttempt) => logger.LogError(delegateResult.Exception ?? delegateResult.Result.Exception, $"命令产生的应用消息发布失败,重试。 [CommandType = {processingCommand.Command.GetType()}, CommandId = {processingCommand.Command.Id}, ApplicationMessageType = {applicationMessage.GetType()}, ApplicationMessageId = {applicationMessage.Id}, ApplicationMessageRoutingKey = {applicationMessage.GetRoutingKey()}, RetryCount = {retryCount}, RetryAttempt = {retryAttempt}]")) .ExecuteAsync(() => applicationMessagePublisher.PublishAsync(applicationMessage)); if (result.Succeeded) { logger.LogDebug($"命令产生的应用消息发布成功。 [CommandType = {processingCommand.Command.GetType()}, CommandId = {processingCommand.Command.Id}, ApplicationMessageType = {applicationMessage.GetType()}, ApplicationMessageId = {applicationMessage.Id}, ApplicationMessageRoutingKey = {applicationMessage.GetRoutingKey()}]"); await processingCommand.OnQueueProcessedAsync(CommandExecutedStatus.Succeeded, objectSerializer.Serialize(applicationMessage), applicationMessage.GetTag()); } else { logger.LogDebug(result.Exception, $"命令产生的应用消息发布失败。 [CommandType = {processingCommand.Command.GetType()}, CommandId = {processingCommand.Command.Id}, ApplicationMessageType = {applicationMessage.GetType()}, ApplicationMessageId = {applicationMessage.Id}, ApplicationMessageRoutingKey = {applicationMessage.GetRoutingKey()}]"); } }