private StoreExpiryStateData _GetStateData()
{
StoreExpiryStateData stateData = null;
Serializer.Deserialize <StoreExpiryStateData>(Provider.Get(StoreExpiryStateDataKey));
if (stateData == null)
{
stateData = new StoreExpiryStateData()
{
SequenceCurrentVal = Provider.GetNextSequenceValue(StoreExpirySequenceKey, 1),
LastUpdated = DateTime.UtcNow,
WindowStart = DateTime.UtcNow
};
Provider.Set(StoreExpiryStateDataKey, Serializer.Serialize(stateData));
}
return(stateData);
}
private ulong _GetWindow(DateTime date, StoreExpiryStateData stateData)
{
var windowStartDate = stateData.WindowStart;
if (date < windowStartDate)
{
throw new Exception("Date is less than current date");
}
ulong i = stateData.SequenceCurrentVal;
while (date > windowStartDate)
{
windowStartDate = windowStartDate + WindowResolution;
i++;
}
return(i);
}
