private static void GetNonAdvertisingPlaylist(ChannelData channelData,
string password,
Playlist playlist,
DemographicRangeVerifier demographicRangeVerifier,
ChannelSubscriptions channelSubscriptions,
DateTime now,
float defaultDisplayDuration,
Logger logger)
{
//
// calculate content playlist
//
// calculate average play times
var avgPlayTimeQuery = from Channel channel in channelData.Channels
join channelSubscription in channelSubscriptions.SubscriptionSet on channel.ChannelID equals channelSubscription.ChannelID
from ChannelAsset channelAsset in channel.ChannelAssets
group channelAsset by channel.ChannelID into groupedAssets
select new
{
ChannelID = groupedAssets.Key,
AveragePlayTime = (float)groupedAssets.Average(channelAsset => channelAsset.DisplayDuration == -1F ? defaultDisplayDuration : channelAsset.DisplayDuration)
};
float sumAveragePlayTimes = 0F;
foreach (var channel in avgPlayTimeQuery)
{
sumAveragePlayTimes += channel.AveragePlayTime;
}
// calculate playing probability of each channel
var channelBuckets = HashSetLinqAccess.ToHashSet <ChannelBucket>(from ChannelSubscription channelSubscription in channelSubscriptions.SubscriptionSet
join channel in avgPlayTimeQuery on channelSubscription.ChannelID equals channel.ChannelID
join channelDataChannel in channelData.Channels on channel.ChannelID equals channelDataChannel.ChannelID
select new ChannelBucket
{
ChannelID = channel.ChannelID,
ChannelName = channelSubscription.ChannelName,
AveragePlayTime = channel.AveragePlayTime,
PlayingProbabilityUnnormalized = channel.AveragePlayTime > 0 && sumAveragePlayTimes > 0 ? (float)channelSubscription.ChannelWeightingUnnormalised / (channel.AveragePlayTime / sumAveragePlayTimes) : 0,
ContentAssets = ConvertChannelAssetsToPlayListAssetsIfDateTimeDemoPermits(channelDataChannel, demographicRangeVerifier, now)
});
if (channelBuckets.Count == 0)
{
return;
}
playlist.ChannelBuckets = channelBuckets;
// normalize playing probabilities
NormalizeChannelBucketPlayingProbabilities(playlist.ChannelBuckets, logger);
}
private static void GetAdvertisingPlaylist(string advertListPath, string demographicDataPath,
DemographicRangeVerifier demographicRangeVerifier, string password, Playlist playlist, ChannelData channelData,
ChannelSubscriptions channelSubscriptions, DateTime now, Logger logger)
{
// if the advertisment or the demographic data file is not found, an exception will be thrown
// if user has corrupted any of the files, an exception will be thrown
AdvertList advertList = (AdvertList)Serializer.Deserialize(typeof(AdvertList), advertListPath, password);
// flatten channel definitions
HashSet <string> channelDefinitions = new HashSet <string>();
foreach (Channel channel in channelData.Channels)
{
SplitAndInsertChannelDefinitions(ref channelDefinitions, channel.ChannelDefinitions);
}
// flatten advert definitions
HashSet <string> advertDefinitions = new HashSet <string>();
foreach (AdvertAsset advertasset in advertList.Adverts)
{
SplitAndInsertChannelDefinitions(ref advertDefinitions, advertasset.AdvertDefinitions);
}
var advertListsFiltered = HashSetLinqAccess.ToHashSet <AdvertPlaylistAsset>(from AdvertAsset advertAsset in advertList.Adverts
where demographicRangeVerifier.IsAssetDemoSyntaxPlayable(advertAsset.DemoRequirements) &&
TreeSearch.IncludeByChannelClassifications(channelDefinitions, advertAsset.InclusionExclusionList) == true &&
TreeSearch.IncludeByAdvertClassifications(advertDefinitions, channelData, channelSubscriptions) == true &&
now >= advertAsset.StartDateTime &&
now <= advertAsset.EndDateTime
select new AdvertPlaylistAsset
{
AssetID = advertAsset.AssetID,
AssetFilename = advertAsset.AssetFilename,
ClickDestination = advertAsset.ClickDestination,
AssetWebSite = advertAsset.AssetWebSite,
PlayerType = advertAsset.PlayerType,
ScheduleInfo = advertAsset.ScheduleInfo,
DisplayLength = advertAsset.DisplayDuration,
WeightingUnnormalized = advertAsset.Weighting,
StartDateTime = advertAsset.StartDateTime,
EndDateTime = advertAsset.EndDateTime
});
playlist.AdvertBucket.AdvertAssets = advertListsFiltered;
}
