public async Task <Acknowledgement> DispatchAsync <TMessage, TAsyncConsumer>(TMessage message, RetryMessageContext retryMessageContext)
where TMessage : class
where TAsyncConsumer : class, IConsumeAsync <TMessage>
{
Stopwatch stopwatch = Stopwatch.StartNew();
Dictionary <string, long> stepDic = new Dictionary <string, long>();
using (var scope = _serviceProvider.CreateScope())
{
var consumer = scope.ServiceProvider.GetService <IConsumeAsync <TMessage> >();
if (consumer == null)
{
_logger.LogWarning($"类型{typeof(TAsyncConsumer).Name} 找不到实现");
return(new Ack());
}
try
{
stepDic.Add("创建handler", stopwatch.ElapsedMilliseconds);
var unitOfWorkAttr = consumer.GetType().GetMethod(nameof(IConsumeAsync <TMessage> .ConsumeAsync)).GetCustomAttribute <UnitOfWorkAttribute>();
stepDic.Add("获取UnitOfWorkAttribute", stopwatch.ElapsedMilliseconds);
IUnitOfWork unifOfWork = null;
if (unitOfWorkAttr != null)
{
unifOfWork = scope.ServiceProvider.GetService <IUnitOfWork>();
if (unitOfWorkAttr.IsTransactional)
{
unifOfWork.Begin(unitOfWorkAttr.IsolationLevel);
}
}
stepDic.Add("开启工作单元", stopwatch.ElapsedMilliseconds);
await consumer.ConsumeAsync(message).ConfigureAwait(false);
stepDic.Add("执行handler", stopwatch.ElapsedMilliseconds);
if (unifOfWork != null)
{
await unifOfWork.CompleteAsync();
}
stepDic.Add("提交工作单元", stopwatch.ElapsedMilliseconds);
}
catch (Exception ex)
{
if (_needAckExceptionTypes.Contains(ex.GetType()))
{
return(new Ack());
}
if (retryMessageContext.RetryInfo.NumberOfRetries < _retryCount - 1)
{
var timespan = _rertyIntervalFunc.Invoke(retryMessageContext.RetryInfo.NumberOfRetries);
_logger.LogError(ex, $"message:{Newtonsoft.Json.JsonConvert.SerializeObject(message)},类型{typeof(TAsyncConsumer).Name}消息处理发生了异常,当前重试次数{retryMessageContext.RetryInfo.NumberOfRetries},将在{timespan.TotalSeconds}秒后重试");
return(Retry.In(timespan));
}
else
{
_logger.LogError(ex, $"message:{Newtonsoft.Json.JsonConvert.SerializeObject(message)},类型{typeof(TAsyncConsumer).Name}消息处理失败,重试次数{retryMessageContext.RetryInfo.NumberOfRetries},消息不再重试");
return(new Ack());
}
}
}
if (stopwatch.ElapsedMilliseconds > _logForMinExecutionDuration && _logger.IsEnabled(LogLevel.Information))
{
var log = new { MessageType = typeof(TMessage).Name, RetryTimes = retryMessageContext.RetryInfo.NumberOfRetries, Context = message, Step = stepDic };
var json = Newtonsoft.Json.JsonConvert.SerializeObject(log);
stopwatch.Stop();
_logger.LogInformation($"{json} LastStep:{stopwatch.ElapsedMilliseconds}");
}
return(new Ack());
}
private static async Task <Acknowledgement> ServerValuesAsync(EmailLowPriority message, RetryMessageContext ctx)
{
var aMessage = message;
var aCtx = ctx;
await File.ReadAllTextAsync("rawrabbit.json");
Console.WriteLine("---------------------------------------------");
Console.WriteLine("Before Retry --------------------------------");
return(Retry.In(TimeSpan.FromSeconds(10)));
}
