public ResultScan scan(string path_db, string path)
{
List <Virus> listVirus = databaseHelper.GetListViruses(path_db);
binarySearch.SetLists(listVirus);
string hashValue = hashHelper.HashFile(path);
Console.WriteLine("Hash value : " + hashValue);
ResultScan ans = binarySearch.Search(hashValue);
return(ans);
}
public ResultScan Search(string hashValue)
{
ResultScan ans = new ResultScan()
{
IsEmpty = true, VirusName = ""
};
int low = 0;
int high = viruses.Count;
while (high > low + 1)
{
int mid = (high + low) / 2;
var virus = viruses[mid];
if (virus.HashValue == hashValue)
{
ans.IsEmpty = false;
ans.VirusName = virus.Name;
return(ans);
}
if (hashValue.CompareTo(virus.HashValue) > 0)
{
low = mid + 1;
}
else
{
high = mid - 1;
}
}
if (low < viruses.Count && viruses[low].HashValue == hashValue)
{
ans.IsEmpty = false;
ans.VirusName = viruses[low].Name;
return(ans);
}
if (high < viruses.Count && viruses[high].HashValue == hashValue)
{
ans.IsEmpty = false;
ans.VirusName = viruses[high].Name;
return(ans);
}
return(ans);
}
