private bool CheckDuplicate(FingerImageRecord fRecord)
{
try
{
if (FingerprintRecords.Count == 0)
{
FingerprintRecords.Add(fRecord);
return(true);
}
//NBuffer .GetTemplateBuffer()
using (var biometricClient = new NBiometricClient())
{
// Set matching threshold
biometricClient.MatchingThreshold = (int)Settings.Default.MatchingScore;
// Set matching speed
biometricClient.FingersMatchingSpeed = NMatchingSpeed.Low;
var matcherFound = false;
FingerprintRecords.ForEach(item =>
{
if (item.FingerTemplate != null)
{
var status = biometricClient.Verify(fRecord.FingerSubject, item.FingerSubject);
if (status == NBiometricStatus.Ok)
{
matcherFound = true;
item = fRecord;
}
}
});
if (matcherFound)
{
return(false);
}
FingerprintRecords.Add(fRecord);
return(true);
}
}
catch (Exception e)
{
MessageBox.Show(e.Message, @"Process Fingerprint");
return(false);
}
}
public int run(int from, int to, int count)
{
string dbFingerTable = System.Configuration.ConfigurationManager.AppSettings["dbFingerTable"];
string dbFingerColumn = System.Configuration.ConfigurationManager.AppSettings["dbFingerColumn"];
string dbIdColumn = System.Configuration.ConfigurationManager.AppSettings["dbIdColumn"];
SqlConnection conn = null;
SqlCommand cmd = null;
SqlDataReader reader = null;
int AppId = 0;
//int rowNumber = 0;
_biometricClient = new NBiometricClient { UseDeviceManager = true, BiometricTypes = NBiometricType.Finger };
_biometricClient.Initialize();
Stopwatch sw = new Stopwatch();
NSubject subject2 = null;
int score = 0;
int numberOfMatches = 0;
NBiometricStatus status;
int retcode = 0;
var fingerArray = new string[2] { "ri", "rm" };
byte[][] buffer = new byte[2][];
try
{
var connStr = getConnectionString();
conn = new SqlConnection(connStr);
conn.Open();
cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = String.Format("SELECT AppID, {2}, {3} FROM Egy_T_FingerPrint WITH (NOLOCK) WHERE datalength(AppWsq) IS NOT NULL ORDER BY AppID ASC OFFSET {0} ROWS FETCH NEXT {1} ROWS ONLY ", from, count, fingerArray[0], fingerArray[1]);
reader = cmd.ExecuteReader();
while (reader.Read())
{
if (terminateProcess)
break;
//rowNumber++;
//Console.WriteLine("{0}", rowNumber + from);
numberOfMatches = 0;
if (!reader.IsDBNull(0))
{
AppId = reader.GetInt32(0);
//Console.WriteLine("{0}", AppId);
if (!reader.IsDBNull(1) && ((byte[])reader[fingerArray[0]]).Length > 1)
{
buffer[0] = (byte[])reader[fingerArray[0]];
subject2 = NSubject.FromMemory(buffer[0]);
//_biometricClient.MatchingWithDetails = true;
//sw.Start();
status = _biometricClient.Verify(subject, subject2);
//sw.Stop();
//Console.WriteLine(" ------------------------- Time elapsed: {0}", sw.Elapsed);
if (status == NBiometricStatus.Ok)
{
score = subject.MatchingResults[0].Score;
numberOfMatches++;
}
subject2.Clear();
}
if (!reader.IsDBNull(2) && ((byte[])reader[fingerArray[1]]).Length > 1)
{
buffer[1] = (byte[])reader[fingerArray[1]];
subject2 = NSubject.FromMemory(buffer[1]);
_biometricClient.MatchingWithDetails = true;
status = _biometricClient.Verify(subject, subject2);
if (status == NBiometricStatus.Ok)
{
score = subject.MatchingResults[0].Score;
numberOfMatches++;
}
subject2.Clear();
}
}
if (numberOfMatches == 2)
{
Console.WriteLine(" ----- AppID: {0}", AppId);
retcode = AppId;
break;
}
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
try
{
if (reader != null)
reader.Close();
if (conn != null && conn.State == ConnectionState.Open)
{
conn.Close();
conn = null;
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
return retcode;
}
