public ExpirationCalculation(DateTimeOffset initail, TimeSpan slidingSize, DateTimeOffset maxExpireDate)
{
IsNegativeSlidingSize(slidingSize);
createDate = DateTimeOffset.Now;
this.slidingSize = slidingSize;
this.initail = initail;
this.maxExpireDate = maxExpireDate;
expireInfo = new Effective(initail);
mode = ExpirationMode.Sliding;
}
public ExpirationCalculation(DateTimeOffset initail)
{
maxCount = 0;
createDate = DateTime.Now;
slidingSize = TimeSpan.Zero;
this.initail = initail;
maxExpireDate = initail;
expireInfo = new Effective(initail);
mode = ExpirationMode.Absolute;
}
public bool CheckExpire(DateTimeOffset date, out Effective effective)
{
var isExpire = expireInfo.expireDate <= date ? true : false;
effective = new Effective(expireInfo.expireDate);
if (!isExpire)
{
effective.expireDate = expireInfo.expireDate >= maxExpireDate ? maxExpireDate.Value : expireInfo.expireDate.Add(slidingSize);
}
return(isExpire);
}
public ExpirationCalculation(DateTimeOffset initail, TimeSpan slidingSize, uint maxCount = 0)
{
IsNegativeSlidingSize(slidingSize);
this.maxCount = maxCount;
createDate = DateTime.Now;
this.slidingSize = slidingSize;
this.initail = initail;
maxExpireDate = maxCount != 0 ? initail.Add(new TimeSpan(slidingSize.Ticks * maxCount)) : maxExpireDate;
expireInfo = new Effective(initail);
mode = ExpirationMode.Sliding;
}
public bool CheckExpire(out Effective expiration)
{
return(CheckExpire(DateTimeOffset.Now, out expiration));
}