/// <summary>
/// 生成可用取票凭证
/// </summary>
/// <param name="fillCount">范围为1到1,000,000</param>
/// <param name="effectiveTime"></param>
/// <param name="expiredTime"></param>
/// <returns></returns>
public int FillNewVoucher(int fillCount, DateTime effectiveTime, DateTime expiredTime)
{
string strLog = String.Format("Generate new voucher:{0}, from {1} to {2}"
, fillCount
, TimeHelper.GetTimeStringYyyyMMddHHmmss(effectiveTime)
, TimeHelper.GetTimeStringYyyyMMddHHmmss(expiredTime));
_log.Info(strLog);
if ((fillCount < 1) ||
(fillCount > 1000000))
{
throw new ArgumentOutOfRangeException("fillCount");
}
if (0 < effectiveTime.CompareTo(expiredTime))
{
throw new ArgumentException("expiredTime must larger then effectiveTime");
}
Stopwatch sw = new Stopwatch();
sw.Start();
int filledCount = 0;
try
{
VoucherHelper voucherHelper = new VoucherHelper();
// 为免重复生成双倍随机数
int doublefillCount = fillCount * 2;
// 不重复随机数
List <string> noRepeatRandomNumList = voucherHelper.GetNoRepeatRandomNumList(doublefillCount, Constants.VoucherLength);
// 已有随机数字典
Dictionary <string, string> dictExistVoucherCode = new Dictionary <string, string>();
// 需添加的新随机数列表，与已有随机数不重复
List <VoucherList> toAddVoucherList = new List <VoucherList>();
using (MobilePayDBEntities dbContext = new MobilePayDBEntities())
{
// 填充 已有随机数字典
foreach (VoucherList eachVoucher in dbContext.VoucherLists.ToList())
{
string eachExistVoucherCode = eachVoucher.VoucherCode;
dictExistVoucherCode.Add(eachExistVoucherCode, eachExistVoucherCode);
}
// 填充 需添加的新随机数列表
int newVoucherCodeCount = 0;
foreach (string eachNewVoucherCode in noRepeatRandomNumList)
{
if (!dictExistVoucherCode.ContainsKey(eachNewVoucherCode))
{
VoucherList newVoucherList = new VoucherList();
newVoucherList.VoucherId = Guid.NewGuid();
newVoucherList.VoucherCode = eachNewVoucherCode;
newVoucherList.EffectiveTime = effectiveTime;
newVoucherList.ExpiredTime = expiredTime;
newVoucherList.IsValid = true;
newVoucherList.IsUsed = false;
newVoucherList.IsLocked = false;
toAddVoucherList.Add(newVoucherList);
newVoucherCodeCount++;
if (fillCount <= newVoucherCodeCount)
{
break;
}
}
}
DateTime dtGenerateTime = DateTime.Now;
foreach (VoucherList eachNewVoucher in toAddVoucherList)
{
eachNewVoucher.GenerateTime = dtGenerateTime;
dbContext.VoucherLists.AddObject(eachNewVoucher);
}
filledCount = dbContext.SaveChanges();
}
}
catch (Exception ex)
{
_log.Error(ex.Message);
}
sw.Stop();
TimeSpan ts = sw.Elapsed;
_log.Info(ts.TotalMilliseconds);
return(filledCount);
}
