public static HyperLink GetBanner(BannerAdvert.Type type, int indexOnPage)
{
AdPackBannerDisplayerHelper Helper = new AdPackBannerDisplayerHelper(type);
List <AdPacksAdvert> allBanners = Helper.Banners;
//Randomize the banner
int bannerIndex = random.Next(0, allBanners.Count);
HyperLink Banner = Helper.GetBannerHyperLink();
//Do we have enough banners to display?
if (allBanners.Count > 0 && allBanners.Count > indexOnPage)
{
AdPacksAdvert chosenBanner = allBanners[bannerIndex];
//Adding the impression
AddBannerImpression(chosenBanner.Id, type);
//Finishing
Banner.NavigateUrl = AppSettings.Site.Url + "link.aspx?rid=" + (new Encryption()).EncryptBannerId(chosenBanner.Id);
Banner.Controls.Clear();
Banner.Controls.Add(Helper.GetBannerImage(chosenBanner));
}
return(Banner);
}
public static void AddAdPackBannerImpression(int adPackBannerId, BannerAdvert.Type type)
{
string name = AdPackBannerName + adPackBannerId;
var pair = new KeyValuePair <DateTime, int>(DateTime.Now.AddSeconds(AdPackBannerRefreshEverySeconds), 1);
if (HttpContext.Current.Cache[name] != null)
{
var cachedPair = (KeyValuePair <DateTime, int>)HttpContext.Current.Cache[name];
pair = new KeyValuePair <DateTime, int>(cachedPair.Key, cachedPair.Value + 1);
}
CacheItemRemovedCallback callback;
if (type == BannerAdvert.Type.Constant)
{
callback = new CacheItemRemovedCallback(ConstantAdPackBannerImpressionCacheRemoved);
}
else
{
callback = new CacheItemRemovedCallback(NormalAdPackBannerImpressionCacheRemoved);
}
HttpContext.Current.Cache.Insert(name, pair, null, pair.Key, Cache.NoSlidingExpiration,
CacheItemPriority.Normal, callback);
}
private static void AddBannerImpression(int adPacksAdvertId, BannerAdvert.Type type)
{
BannerImpressionsCache.AddAdPackBannerImpression(adPacksAdvertId, type);
}
public AdPackBannerDisplayerHelper(BannerAdvert.Type type)
{
BannerType = type;
}
