public bool EstablishConnectionToScanner(int maxTryCount, TimeSpan delay)
{
CodeContract.Requires(maxTryCount > 0);
Type connectorClassType;
try
{
connectorClassType = Type.GetType(_config.ScannerConnector.TypeName, true);
}
catch (Exception ex)
{
throw new Exception(string.Format(
"Ошибка получения типа класса коннектора сканера по имени типа '{0}'",
_config.ScannerConnector.TypeName), ex);
}
if (!connectorClassType.CanCastToType(typeof(ScannerConnector)))
throw new Exception(string.Format(
"Тип {0} должен быть унаследован от ScannerConnector", connectorClassType.FullName));
var scannerConnectorSettings = _config.ScannerConnector.Settings.ToNameValueCollection();
var tryCount = 0;
while (true)
{
try
{
if (_scannerConnector != null)
_scannerConnector.Dispose();
_scannerConnected = false;
_scannerConnector = (ScannerConnector)Activator.CreateInstance(connectorClassType);
_scannerConnector.Init(_config.ScannerConnector.BroadcastIPAddress, scannerConnectorSettings);
_connectionDone.Reset();
_scannerConnector.Connect(this);
if (!_connectionDone.WaitOne(TimeSpan.FromSeconds(10), false))
throw new Exception("Не дождались установки соединения со сканером");
Logger.LogInfo(Message.ScannerManagerConnected, _scanner.SerialNumber, _scanner.IPAddress);
StartManageLampsThread();
return true;
}
catch (Exception ex)
{
if (tryCount >= maxTryCount)
{
Logger.LogError(Message.ScannerManagerCantConnect, ex, ++tryCount);
return false;
}
Logger.LogWarning(Message.ScannerManagerCantConnect, ex, ++tryCount);
Thread.Sleep(delay);
}
}
}
public override void Dispose()
{
base.Dispose();
StopScanning();
Thread.Sleep(1000);
if (_rollTextMachine != null)
{
_rollTextMachine.Dispose();
_rollTextMachine = null;
}
if (_scannerConnector != null)
{
SetLampsRegime(ScannerLampsRegime.BothOff);
_scannerConnector.Dispose();
_scannerConnector = null;
}
GC.SuppressFinalize(this);
}
