private IdentityResult HandleNonCatchedExceptionReturn(object[] paras,
BuildErrorFormatStringEventHandler stringHandler2)
{
//极有可能是DbUpdateConcurrencyException最终无法解决，需要记录一个关键错误，
//并且返回不要为空，否则外层使用await则会异常
string temp2 = stringHandler2.Invoke(paras);
LogHelper.Fatal(temp2, new Exception(temp2));
LogHelper.Error(temp2);
LogHelper.Debug(temp2);
//return
//Task<IdentityResult>.Run(
// () =>
// {//保证返回非空的结果对象
return(IdentityResult.Failed(temp2));
//}
//);
}
internal IdentityResult HandleAndAction(IPrivilegeAsyncImpl asyncImpl, object[] paras)
{
CoreActionEventHandler coreAction = asyncImpl.CoreAction;
BuildDbUpdateConcurrencyExceptionFormatStringEventHandler stringHandler1
= asyncImpl.DbUpdateConcurrencyExceptionFormatStringBuilder;
BuildErrorFormatStringEventHandler stringHandler2 = asyncImpl.ErrorFormatStringBuilder;
IdentityResult taskResult = null;
int counter = 5;
//通过配置，设定一个尝试的初始值，暂时写死5
while (taskResult == null && counter > 0)
{
try
{
IdentityResult identResult = coreAction.Invoke(paras);
//Task<IdentityResult> tresult = coreAction.Invoke(paras);
//tresult.Wait();
var result = identResult;// tresult.Result;
if (result != null && result.Succeeded)
{
taskResult = IdentityResult.Success;
//Task<IdentityResult>.Run(
//() =>
//{//保证返回非空的Task结果对象
// return IdentityResult.Success;
//}
//);
////如果到这里都没有报错，说明已经添加成功无异常，可以直接返回
break;
}
}
catch (DbUpdateConcurrencyException db)
{
HandleDbUpdateConcurrencyExceptionReload(paras, stringHandler1, db);
}
catch (AggregateException taskException)
{
LogHelper.Error("ApplicationUserManager.HandleAndAction Exception: ", taskException);
if (taskException.InnerException != null)
{
LogHelper.Error("ApplicationUserManager.HandleAndAction InnerException: ", taskException.InnerException);
if (taskException.InnerException is DbUpdateConcurrencyException)
{
HandleDbUpdateConcurrencyExceptionReload(paras, stringHandler1,
taskException.InnerException as DbUpdateConcurrencyException);
}
}
}
//在这里出来就是要么没有异常，要么异常已经被处理，无论如何先减Counter避免死循环
counter--;//如果Counter未为0，则继续尝试直到不爆这个异常
}
if (taskResult == null)
{
return(HandleNonCatchedExceptionReturn(paras, stringHandler2));
}
return(taskResult);
}