private static CacheItem CreateCacheItem(
PersistedGrant entity)
{
CacheItem item = new CacheItem(entity);
item.Tags = GetTags(entity);
if (entity.GetExpiration().HasValue)
{
TimeSpan span = entity.GetExpiration().Value - DateTime.UtcNow;
item.Expiration = new Expiration(ExpirationType.Absolute, span);
}
return(item);
}