我创建了一个IDisposable对象,用于记录Dispose上的执行时间。使用异步语句不等待内部任务
然后,我创建了一个使用这个对象来记录我的业务类的任何方法调用
我的业务类使用异步方法,在任务完成前,然后离开using语句的时间RealProxy ,然后记录错误的执行时间。
这里是我的代码:
/// <summary>
/// Logging proxy with stopwatch
/// </summary>
/// <typeparam name="T"></typeparam>
public sealed class LoggingProxy<T> : RealProxy// where T : MarshalByRefObject
{
private ILog _logger;
private readonly T _instance;
private LoggingProxy(T instance, ILog logger)
: base(typeof(T))
{
_logger = logger;
_instance = instance;
}
/// <summary>
/// Create the Transparent proy for T
/// </summary>
/// <param name="type">An implementation type of T</param>
/// <returns>T instance</returns>
public static T Create(ILog logger)
{
logger.DebugFormat("[{0}] Instantiate {1}", "LoggingProxy", typeof(T).Name);
var instance = (T)Activator.CreateInstance(typeof(T), logger);
//return the proxy with execution timing if debug enable in logger
if (logger.IsDebugEnabled)
return (T)new LoggingProxy<T>(instance, logger).GetTransparentProxy();
else
return instance;
}
/// <summary>
/// Invoke the logging method using Stopwatch to log execution time
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public override IMessage Invoke(IMessage msg)
{
var methodCall = (IMethodCallMessage)msg;
var method = (MethodInfo)methodCall.MethodBase;
string methodName = method.Name;
string className = method.DeclaringType.Name;
//return directly methods inherited from Object
if (method.DeclaringType.Name.Equals("Object"))
{
var result = method.Invoke(_instance, methodCall.Args);
return new ReturnMessage(result, null, 0, methodCall.LogicalCallContext, methodCall);
}
using (var logContext = _logger.DebugTiming("[{0}] Execution time for {1}", className, methodName))
{
_logger.DebugFormat("[{0}] Call method {1}", className, methodName);
//execute the method
//var result = method.Invoke(_instance, methodCall.Args);
object[] arg = methodCall.Args.Clone() as object[];
var result = method.Invoke(_instance, arg);
//wait the task ends before log the timing
if (result is Task)
(result as Task).Wait();
return new ReturnMessage(result, arg, 0, methodCall.LogicalCallContext, methodCall);
}
}
的_logger.DebugTiming方法启动秒表t和记录它的处置。 我发现,使其与异步方法的工作的唯一办法,就是用这条线:
//wait the task ends before log the timing
if (result is Task)
(result as Task).Wait();
但我一直认为我做的是打破异步方法的所有优点的感觉。
- >如果你有一个关于如何做一个正确实施
建议 - >任何的呼吁代理的wait()的真正影响的想法?
您尝试编写的代码可以在[使用Unity的异步拦截器]中找到(https://msdn.microsoft.com/en-us/magazine/dn574805.aspx) –
但是,在我的上下文中不能使用Unity。 。有些经理将它看作科幻 –