/// <summary>
/// Retry a method that takes four parameters and returns a value of the type specified by the TResult parameter.
/// </summary>
/// <typeparam name="T1">The type of the first parameter of the action.</typeparam>
/// <typeparam name="T2">The type of the secord parameter of the action.</typeparam>
/// <typeparam name="T3">The type of the third parameter of the action.</typeparam>
/// <typeparam name="T4">The type of the fourth parameter of the action.</typeparam>
/// <typeparam name="TResult">The type of the return value.</typeparam>
/// <param name="func">A method to retry.</param>
/// <param name="t1">The first parameter of the action.</param>
/// <param name="t2">The second parameter of the action.</param>
/// <param name="t3">The third parameter of the action.</param>
/// <param name="t4">The fourth parameter of the action.</param>
/// <returns>The return value of the method.</returns>
public TResult Retry <T1, T2, T3, T4, TResult>(RetryFunc <T1, T2, T3, T4, TResult> func, T1 t1, T2 t2, T3 t3, T4 t4)
{
TResult result = default(TResult);
for (int i = 0; i < RetryCount; i++)
{
try
{
result = func(t1, t2, t3, t4);
break;
}
catch
{
if (i == RetryCount - 1)
{
throw;
}
else
{
Thread.Sleep(TimeSpan.FromSeconds(IntervalSeconds));
}
}
}
return(result);
}
/// <summary>
/// Retry a method that takes four parameters and returns a value of the type specified by the TResult parameter.
/// </summary>
/// <typeparam name="T1">The type of the first parameter of the action.</typeparam>
/// <typeparam name="T2">The type of the secord parameter of the action.</typeparam>
/// <typeparam name="T3">The type of the third parameter of the action.</typeparam>
/// <typeparam name="T4">The type of the fourth parameter of the action.</typeparam>
/// <typeparam name="TResult">The type of the return value.</typeparam>
/// <param name="func">A method to retry.</param>
/// <param name="t1">The first parameter of the action.</param>
/// <param name="t2">The second parameter of the action.</param>
/// <param name="t3">The third parameter of the action.</param>
/// <param name="t4">The fourth parameter of the action.</param>
/// <param name="match">Whether the return value is expected</param>
/// <returns>The return value of the method.</returns>
public TResult Retry <T1, T2, T3, T4, TResult>(RetryFunc <T1, T2, T3, T4, TResult> func, T1 t1, T2 t2, T3 t3, T4 t4, Predicate <TResult> match)
{
TResult result = default(TResult);
for (int i = 0; i < RetryCount; i++)
{
try
{
result = func(t1, t2, t3, t4);
if (!match(result))
{
throw new RetryUnExpectedException();
}
break;
}
catch
{
if (i == RetryCount - 1)
{
throw;
}
else
{
Thread.Sleep(TimeSpan.FromSeconds(IntervalSeconds));
}
}
}
return(result);
}
private T Retry <T>(RetryFunc <T> func, ReadOnlySpan <byte> data, CancellationToken cancellationToken = default)
{
for (int i = 0; i < this.attempts; ++i)
{
try
{
cancellationToken.ThrowIfCancellationRequested();
return(func(data));
}
catch (DqliteException ex) when(ex.ErrorCode == 5)
{
cancellationToken.WaitHandle.WaitOne(this.delay);
}
}
throw new DqliteException(5, "database is locked");
}
public static string Try(RetryFunc func, int interval = 500, int retyCount = 3)
{
int timeOutRetry = 3;
int tryCount = 0;
Exception lastException = null;
do
{
tryCount++;
try
{
var result = func();
if (result != null)
{
return result;
}
}
catch (Exception ex)
{
if (ex.Message.Contains("The operation has timed out"))
{
//对于超时错误，多试几次。
if (--timeOutRetry > 0)
{
tryCount--;
}
continue;
}
}
if (tryCount < retyCount)
{
System.Threading.Thread.Sleep(interval);
}
} while (tryCount < retyCount);
throw new Exception(string.Format("Failed after {0} times tries, last error:{1}.", retyCount, lastException != null ? lastException.Message : string.Empty));
}
/// <summary>
/// 从IMDomain获取商品及赠品的商品信息，主要是状态信息。
/// </summary>
private void InitProductInfosFromIM(SaleGiftBatchInfo saleGiftBatchInfo)
{
List <int> productSysNos = new List <int>();
if (saleGiftBatchInfo.ProductItems1 != null)
{
foreach (ProductItemInfo item in saleGiftBatchInfo.ProductItems1)
{
productSysNos.Add(item.ProductSysNo.Value);
}
}
if (saleGiftBatchInfo.ProductItems2 != null)
{
foreach (ProductItemInfo item in saleGiftBatchInfo.ProductItems2)
{
productSysNos.Add(item.ProductSysNo.Value);
}
}
if (saleGiftBatchInfo.Gifts != null)
{
foreach (ProductItemInfo item in saleGiftBatchInfo.Gifts)
{
productSysNos.Add(item.ProductSysNo.Value);
}
}
List <ProductInfo> products = ExternalDomainBroker.GetProductInfoListByProductSysNoList(productSysNos);
//将商品的相关信息，状态、价格信息等赋值给Item.
RetryFunc <ProductItemInfo, int> copyItemInfo = (ProductItemInfo item) => {
ProductInfo swapItem = products.Find(p => p.SysNo == item.ProductSysNo);
if (swapItem != null)
{
item.ProductStatus = swapItem.ProductStatus;
item.ProductID = swapItem.ProductID;
item.ProductName = swapItem.ProductName;
item.CurrentPrice = swapItem.ProductPriceInfo.CurrentPrice.Value;
item.C3SysNo = swapItem.ProductBasicInfo.ProductCategoryInfo.SysNo;
item.BrandSysNo = swapItem.ProductBasicInfo.ProductBrandInfo.SysNo;
}
return(0);
};
if (saleGiftBatchInfo.ProductItems1 != null)
{
foreach (ProductItemInfo item in saleGiftBatchInfo.ProductItems1)
{
copyItemInfo(item);
}
}
if (saleGiftBatchInfo.ProductItems2 != null)
{
foreach (ProductItemInfo item in saleGiftBatchInfo.ProductItems2)
{
copyItemInfo(item);
}
}
if (saleGiftBatchInfo.Gifts != null)
{
foreach (ProductItemInfo item in saleGiftBatchInfo.Gifts)
{
copyItemInfo(item);
}
}
}
