private static String GetPrettyPrintedPath(PathGenerics <Road, City, WeightDeterminedByRoadLengthAndQuality> path)
{
// Note that the code you now are looking at corresponds to client code, i.e. code you could have written yourself.
// The Path interface is included in the library, but not WeightDeterminedByRoadLengthAndQuality
// which should be thought of as your own defined type (subtype of Weight in the library).
// Still the path will return it strongly typed below thanks to usage of Generics.
// It should also be noted that reflection is NOT used for instantiating the object with the total weight
// but instead the create method of the Weight interface will be used for creating the instance
// from within the class PathFinderBase.
WeightDeterminedByRoadLengthAndQuality totalWeightForPath = path.TotalWeightForPath;
Console.WriteLine("totalWeightForPath " + totalWeightForPath);
Console.WriteLine("totalWeightForPath.getLengthInMeters() " + totalWeightForPath.GetLengthInMeters());
Console.WriteLine("totalWeightForPath.getLengthInKiloMeters() " + totalWeightForPath.GetLengthInKiloMeters());
// The reason that the above code works is that a prototypical instance of WeightDeterminedByRoadLengthAndQuality
// will be used for creating an instance of itself.
IList <Road> roadsForPath = path.EdgesForPath;
StringBuilder sb = new StringBuilder();
sb.Append("Total weight: " + path.TotalWeightForPath.WeightValue + " | ");
for (int i = 0; i < roadsForPath.Count; i++)
{
Road road = roadsForPath[i];
City cityFrom = road.GetCityFrom();
City cityFromVertex = road.StartVertex;
Console.WriteLine("cityFrom getCityName : " + cityFrom.CityName);
if (i > 0)
{
sb.Append(" ---> ");
}
sb.Append("[" + road.RoadName + "](" + road.GetEdgeWeight().WeightValue + ")");
}
return(sb.ToString());
}
public P CreatePath(W totalWeight, IList <E> edges)
{
PathGenerics <E, V, W> path = PathGenericsImpl <E, V, W> .CreatePathGenerics <E, V, W>(totalWeight, edges);
P p = (P)path;
return(p);
}
