public DefaultAssetRecommendationEngine(AssetsDataManager assetsDataManager, SkillsDataManager skillsDataManager,
GroupLinkageManager glm, ProblemLinkageManager plm)
{
this.assetsDataManager = assetsDataManager;
this.skillsDataManager = skillsDataManager;
this.groupLinkageManager = glm;
this.problemLinkageManager = plm;
iahe = null;
}
private IAssetHeuristicEngine getAssetHeuristicEngine(ICollection <string> assetTypes, IList <AssetRecomendation> pastAssets)
{
if (iahe == null)
{
iahe = new AssetHeuristicEngine(assetTypes, pastAssets);
}
else
{
iahe.generateAssetScores(assetTypes, pastAssets);
}
return(iahe);
}
public IList <AssetRecomendation> GetRecommendationsFor(string skillIndex)
{
ICollection <string> assetTypes = assetsDataManager.GetAssetsTypes();
Dictionary <string, int> typeScoresMap = new Dictionary <string, int>();
foreach (string type in assetTypes)
{
typeScoresMap.Add(type, 0);
}
skillsDataManager.Visit(delegate(string skillId, bool isComplete){
if (isComplete)
{
IAssetHeuristicEngine engine = getAssetHeuristicEngine(assetTypes, assetsDataManager.GetAssetsFor(skillId));
foreach (string type in assetTypes)
{
typeScoresMap[type] += engine.getScoreForType(type);
}
}
});
IList <AssetRecomendation> unsortedList = assetsDataManager.GetAssetsFor(skillIndex);
List <ComparableAssetRecomendation> comparableList = new List <ComparableAssetRecomendation>();
foreach (AssetRecomendation ar in unsortedList)
{
comparableList.Add(new ComparableAssetRecomendation(ar, typeScoresMap[ar.GetAssetType()]));
}
comparableList.Sort(new ComparableAssetRecomendationComparer());
IList <AssetRecomendation> arList = new List <AssetRecomendation>();
foreach (AssetRecomendation ar in comparableList)
{
arList.Add(ar);
}
return(arList);
}
public void setHeuristicsEngine(IAssetHeuristicEngine iahe)
{
this.iahe = iahe;
}