/// <summary>
/// Start polling for tasks...
/// </summary>
/// <returns>true on success</returns>
public async Task <bool> MonitorTasksStart()
{
bool blSuccess;
CloudScanner cloudScanner = null;
using (var context = new CloudContext())
{
cloudScanner = context.Scanners.First();
}
var cloudClient = new TwainCloudClient(CloudManager.GetCloudApiRoot(), new TwainCloudTokens(cloudScanner.AuthorizationToken, cloudScanner.RefreshToken));
cloudClient.TokensRefreshed += (sender, args) =>
{
cloudScanner.AuthorizationToken = args.Tokens.AuthorizationToken;
cloudScanner.RefreshToken = args.Tokens.RefreshToken;
SaveScannerRegistration(cloudScanner);
};
// Start monitoring for commands...
blSuccess = await m_twainlocalscannerdevice.DeviceHttpServerStart(new DeviceSession(cloudClient, cloudScanner.Id));
if (!blSuccess)
{
Log.Error("DeviceHttpServerStart failed...");
return(false);
}
// All done...
return(true);
}
private static void SaveScannerRegistration(CloudScanner scanner)
{
using (var context = new CloudContext())
{
context.Scanners.AddOrUpdate(scanner);
context.SaveChanges();
}
}
public CloudScanner GetCurrentCloudScanner()
{
CloudScanner cloudScanner = null;
var cloudConfigFileName = GetCloudConfigFileName();
if (File.Exists(cloudConfigFileName))
{
var cloudScannerId = File.ReadAllText(GetCloudConfigFileName());
using (var context = new CloudContext())
cloudScanner = context.Scanners.Find(cloudScannerId);
}
return(cloudScanner);
}
/// <summary>
/// Register a device with cloud infrastructure.
/// </summary>
public async Task RegisterCloudScanner()
{
try
{
var client = new TwainCloudClient(CloudManager.GetCloudApiRoot());
var registrationManager = new RegistrationManager(client);
var scannerInfo = new RegistrationRequest
{
Name = GetTwainLocalTy(),
Description = GetTwainLocalNote()
};
var result = await registrationManager.Register(scannerInfo);
var registrationDialog = new RegistrationForm(registrationManager, result);
registrationDialog.ShowDialog();
var pollResult = registrationDialog.PollResponse;
if (pollResult != null)
{
var cloudScanner = new CloudScanner
{
Id = result.ScannerId,
Name = $"{scannerInfo.Name} ({scannerInfo.Description})",
AuthorizationToken = pollResult.AuthorizationToken,
RefreshToken = pollResult.RefreshToken
};
SaveScannerRegistration(cloudScanner);
SetCurrentCloudScanner(cloudScanner);
}
}
catch (Exception exception)
{
Log.Error("RegisterCloudScanner exception - " + exception.Message);
}
}
public void SetCurrentCloudScanner(CloudScanner scanner)
{
var cloudConfigFileName = GetCloudConfigFileName();
File.WriteAllText(cloudConfigFileName, scanner.Id);
}
