protected virtual ISignalResponse ParseE2(string response)
{
response = Helpers.SanitizeXmlString(response);
string snr = null;
string db = null;
string acg = null;
string ber = null;
using (XmlReader reader = XmlReader.Create(new StringReader(response)))
{
bool canRead = reader.Read();
while (canRead)
{
if (reader.IsStartElement())
{
switch (reader.Name.ToLower())
{
case "e2snrdb":
reader.Read();
db = reader.Value;
break;
case "e2snr":
reader.Read();
snr = reader.Value;
break;
case "e2ber":
reader.Read();
ber = reader.Value;
break;
case "e2acg":
reader.Read();
acg = reader.Value;
break;
}
}
canRead = reader.Read();
}
}
IE2Signal signal = InitializeSignal(snr, db, acg, ber);
if (signal == null)
{
throw new ParsingException("Failed to parse Enigma2 signal!");
}
return(_factory.SignalResponse(signal));
}
private IE2Signal InitializeSignal(string snr, string db, string acg, string ber)
{
IE2Signal signal = _factory.E2Signal();
string ds = CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator;
string realSnr;
string realDb;
snr = snr.Replace("%", "").Trim();
db = db.ToLower().Replace("db", "").Trim().Replace(",", ds).Replace(".", ds);
if (snr.Length == 0 || db.Length == 0)
{
signal.Db = -1;
signal.Snr = -1;
signal.Acg = -1;
signal.Ber = -1;
return(signal);
}
//dB is in percentage, someting is wrong
if (db.IndexOf("%", StringComparison.Ordinal) > -1)
{
//if SNR is in dB we simply switch the values
if (snr.IndexOf("db", StringComparison.Ordinal) > -1)
{
realSnr = db;
realDb = snr;
realDb = realDb.Replace("db", "").Trim().Replace(",", ds).Replace(".", ds);
realSnr = realSnr.Replace("%", "").Trim();
}
else
{
//both dB and SNR are in %, we'll have to calculate dB
realSnr = snr;
realDb = null;
}
}
else
{
realSnr = snr;
realDb = db;
}
//check if snr value is in db
if (snr.ToLower().IndexOf("db", StringComparison.Ordinal) > -1)
{
realSnr = null;
realDb = db;
}
if (realSnr == null && realDb == null)
{
throw new ParsingException("Failed to parse Enigma2 signal!");
}
if (realSnr != null && realDb != null)
{
signal.Snr = int.Parse(realSnr);
signal.Db = decimal.Parse(realDb);
}
else if (realDb != null)
{
signal.Db = decimal.Parse(realDb);
signal.Snr = (int)(signal.Db * 6.5M);
}
else
{
signal.Snr = int.Parse(realSnr);
signal.Db = Math.Round(signal.Snr / 6.5M, 2);
}
signal.Acg = int.Parse(acg.Replace("%", "").Trim());
signal.Ber = int.Parse(ber);
return(signal);
}