private string ExecuteWordJitter(string word, JitterType jitterType, double probabilityScaleFactor, int maxWordSize)
{
double jitterProbability = CalculateWordJitterProbability(word, jitterType, probabilityScaleFactor, maxWordSize);
var proceed = _probabilityChecker.Check(jitterProbability);
if (!proceed)
{
return(word);
}
switch (jitterType)
{
case JitterType.MutationSwitch:
return(MutationSwitch(word));
case JitterType.MutationReplace:
return(MutationReplace(word));
case JitterType.MutationRemove:
return(MutationRemove(word));
case JitterType.MutationDuplicate:
return(MutationDuplicate(word));
default:
return(word);
}
}
public Task <string> ApplyJitterAsync(string source, JitterType jitterType, double probabilityScaleFactor = 0.5, int maxWordSize = 15)
{
if (string.IsNullOrEmpty(source))
{
throw new ArgumentNullException(nameof(source));
}
var words = source.Split(' ', StringSplitOptions.RemoveEmptyEntries);
var jittered = new StringBuilder();
foreach (var word in words)
{
var jitteredWord = ExecuteWordJitter(word, jitterType, probabilityScaleFactor, maxWordSize);
jittered.Append(jitteredWord);
jittered.Append(" ");
}
return(Task.FromResult(jittered.ToString().Trim()));
}
private double CalculateWordJitterProbability(string word, JitterType jitterType, double probabilityScaleFactor, int maxWordSize)
{
return(probabilityScaleFactor * (word.Length / (double)maxWordSize));
}
