public static void UpdateResources <TSource>(
this IResourceManager <TSource> mgr,
IEnumerable <TSource> collection)
{
mgr.UpdateResources(
collection
.Distinct()
.ToDictionary(x => x, _ => WeightItem.CreateDefaultItem()));
}
public static IResourceManager <TSource> Create <TSource>(IEnumerable <TSource> sources)
{
var resources = new ConcurrentDictionary <TSource, WeightItem>();
foreach (var source in sources)
{
resources.GetOrAdd(source, WeightItem.CreateDefaultItem());
}
return(new ResourceManager <TSource>(resources, new AgodaWeightManipulationStrategy()));
}
public WeightItem UpdateWeight <T>(T source, WeightItem originalWeight, bool isSuccess)
{
var originialWeightValue = originalWeight.Weight;
var newWeight = isSuccess
? originialWeightValue * Magnitude
: originialWeightValue / Magnitude;
// Convert.ToInt32 is Math.Round that returns int
var delta = Convert.ToInt32(newWeight) - originialWeightValue;
return(originalWeight.SetNewWeight(delta));
}
public WeightItem UpdateWeight <T>(T source, WeightItem originalWeight, bool isSuccess)
{
return(_strategy.UpdateWeight(source, originalWeight, isSuccess));
}
public static IResourceManager <TSource> Create <TSource>(IEnumerable <TSource> sources) =>
new ResourceManager <TSource>(
sources.ToDictionary(
x => x,
_ => WeightItem.CreateDefaultItem()),
new AgodaWeightManipulationStrategy());
public static WeightItem SetNewWeight(this WeightItem weight, int delta)
{
var newWeight = Math.Min(Math.Max(weight.Weight + delta, weight.MinWeight), weight.MaxWeight);
return(new WeightItem(newWeight, weight.MaxWeight, weight.MinWeight));
}
private bool Equals(WeightItem other)
{
return(Weight == other.Weight &&
MinWeight == other.MinWeight &&
MaxWeight == other.MaxWeight);
}
