/// <summary>
/// Subscribes a user to the signals
/// </summary>
/// <param name="userName"></param>
/// <returns></returns>
public string Subscribe(string userName)
{
Logger.Debug("New Client Connection received. UserName = "******"Subscribe");
try
{
if (SearchHelper.AuthenticateUserCredentials(userName, _helper))
{
Logger.Debug("Client Authenticated. UserName = "******"Subscribe");
_callback = OperationContext.Current.GetCallbackChannel <IUpDownSignalsClientContract>();
_newSignalHandler = new NewSignalEventHandler(NewSignalHandler);
_communicationObject = OperationContext.Current.InstanceContext;
_communicationObject.Closed += CommunicationObjectOnClosed;
_communicationObject.Faulted += CommunicationObjectOnClosed;
NewSignalEvent -= _newSignalHandler;
NewSignalEvent += _newSignalHandler;
return("SUCCESS");
}
else
{
Logger.Debug("Client Authentication failed. UserName = "******"Subscribe");
return("FAILED");
}
}
catch (Exception exception)
{
Console.WriteLine(exception);
Logger.Error(exception, OType.FullName, "Subscribe");
return("FAILED");
}
}
