public static JoinInfo GetFromFile(string fichero)
{
JoinInfo info = new JoinInfo ();
info.Directory = new FileInfo (fichero).Directory;
string original = new FileInfo (fichero).Name;
string extensionParte = original.Substring (original.LastIndexOf (".")+1);
info.BaseName = original.Substring (0, original.LastIndexOf ('.') + 1);
info.OriginalFile = original.Substring (0, original.LastIndexOf ('.'));
// Soporte ultrasplit
if (extensionParte.StartsWith ("u")) {
info.BaseName = original.Substring (0, original.LastIndexOf ('.') + 2);
}
info.Digits = original.Length - info.BaseName.Length;
if (File.Exists (info.Directory.FullName + Path.DirectorySeparatorChar + info.BaseName + UtilidadesCadenas.Format (0, info.Digits)))
{
info.InitialFragment = 0;
}
else if (File.Exists (info.Directory.FullName + Path.DirectorySeparatorChar + info.BaseName + UtilidadesCadenas.Format (1, info.Digits)))
{
info.InitialFragment = 1;
}
else {
return null;
}
int contador = 1;
while (File.Exists (info.GetFragmentFullPath (contador)))
{
FileInfo fi = new FileInfo (info.GetFragmentFullPath (contador));
info.Length += fi.Length;
contador++;
}
info.FragmentsNumber = contador - 1;
// Comprobar cutkiller
if (info.InitialFragment == 1 && info.Digits == 3)
{
byte[] buffer = UtilidadesFicheros.LeerSeek (info.GetFragmentFullPath(1), 0, 8);
string extension = UtArrays.LeerTexto (buffer, 0, 3);
string fragmentos = UtArrays.LeerTexto (buffer, 3, 5);
if (extension.Length > 0 && fragmentos.Length == 5)
{
if (
Char.IsWhiteSpace (fragmentos[0]) &&
Char.IsWhiteSpace (fragmentos[1]) &&
Char.IsDigit (fragmentos[2]) &&
Char.IsDigit (fragmentos[3]) &&
Char.IsDigit (fragmentos[4]) &&
Int32.Parse (fragmentos.Trim ()) == info.FragmentsNumber
)
{
info.IsCutKiller = true;
info.OriginalFile = info.OriginalFile + "." + extension;
info.Length -= 8;
}
}
}
info.CalculateLength();
return info;
}
protected override void _Unir(string fichero, string dirDest)
{
FileInfo fi = new FileInfo (fichero);
string[] partes = GetPartesNombre (fi.Name);
JoinInfo info = new JoinInfo ();
info.Digits = 3;
info.InitialFragment = 1;
info.BaseName = partes[0];
info.OriginalFile = info.BaseName;
info.FragmentsNumber = Int32.Parse (partes[2]);
info.Format = info.BaseName + "{0:D3}-" + info.FragmentsNumber;
info.Directory = fi.Directory;
info.CalculateLength ();
new ParteGenerico ().Unir (fichero, dirDest, info);
}
