///
/// <param name="noOfInheritanceChains"> : User defined desired number of inheritance chains </param>
/// <param name="inheritanceDepth"> : Maximum allowed inheritance depth </param>
/// <param name="range">: Total number of classes </param>
/// <returns> Something like this: {<3,5,1>,<7,2,6>} random but unique list of integers </returns>
public static List <List <int?> > getInheritanceList(int noOfInheritanceChains, int inheritanceDepth, int range) // number of classes
{
//Ishtiaque: this is probably already checked
//Bala: This is a static method which can be reused for Interfaces
//Even if the main stub is replaced with a GUI, this check will be needed.
if (range < (noOfInheritanceChains * inheritanceDepth))
{
Console.WriteLine("getInheritanceList:: Invalid range");
return(null);
}
List <List <int?> > inheritanceList = new List <List <int?> >();
List <int?> usedList = new List <int?>();
for (int i = 0; i < noOfInheritanceChains; i++)
{
Random random = new Random();
//we don't want a 0 depth inheritance chain.
int randomizedInheritanceDepth = random.Next(inheritanceDepth) + 1;
// considering MinInheritanceDepth; Min. InheritanceDepth should be less than equal to Max.,=> this is checked in GUI
if (randomizedInheritanceDepth < minInheritanceDepth)
{
randomizedInheritanceDepth = minInheritanceDepth;
}
inheritanceList.Add(ProgGenUtil.getRandomList(randomizedInheritanceDepth, range, usedList));
}
return(inheritanceList);
}
public static string getClassToConstruct(string classname, List <ClassGenerator> classList)
{
ClassGenerator lhsClass = getClassByName(classList, classname);
if (lhsClass == null)
{
return(classname);
}
if (ProgGenUtil.coinFlip())
{
//return the same class
return(classname);
}
//else pick one of its subclasses to return
HashSet <ClassGenerator> directKnownSubClasses = lhsClass.SubClasses;
if (directKnownSubClasses.Count == 0)
{
//no subclasses
return(classname);
}
//Using linked hash set for predictable iteration order
HashSet <ClassGenerator> knownSubClasses = new HashSet <ClassGenerator>(directKnownSubClasses);
foreach (ClassGenerator generator in knownSubClasses)
{
knownSubClasses.Add(generator);
HashSet <ClassGenerator> subclasses = generator.SubClasses;
foreach (ClassGenerator subclass in subclasses)
{
knownSubClasses.Add(subclass);
}
}
object[] subClassArray = knownSubClasses.ToArray();
ClassGenerator chosenOne = (ClassGenerator)subClassArray[(new Random()).Next(subClassArray.Length)];
return(chosenOne.FileName);
}
