public static async Task Main(string[] args)
{
IOutput console = new ConsoleOutput();
console.WriteLine("OPC UA Console Reference Client");
try
{
// Define the UA Client application
ApplicationInstance application = new ApplicationInstance();
application.ApplicationName = "Quickstart Console Reference Client";
application.ApplicationType = ApplicationType.Client;
// load the application configuration.
await application.LoadApplicationConfiguration("ConsoleReferenceClient.Config.xml", silent : false);
// check the application certificate.
await application.CheckApplicationInstanceCertificate(silent : false, minimumKeySize : 0);
// create the UA Client object and connect to configured server.
UAClient uaClient = new UAClient(application.ApplicationConfiguration, console, ClientBase.ValidateResponse);
bool connected = await uaClient.ConnectAsync();
if (connected)
{
// Run tests for available methods.
uaClient.ReadNodes();
uaClient.WriteNodes();
uaClient.Browse();
uaClient.CallMethod();
uaClient.SubscribeToDataChanges();
// Wait for some DataChange notifications from MonitoredItems
await Task.Delay(20_000);
uaClient.Disconnect();
}
else
{
console.WriteLine("Could not connect to server!");
}
console.WriteLine("\nProgram ended.");
console.WriteLine("Press any key to finish...");
Console.ReadKey();
}
catch (Exception ex)
{
console.WriteLine(ex.Message);
}
}
public static void Main(string[] args)
{
Console.WriteLine("OPC UA Console Reference Client");
try
{
// Define the UA Client application
ApplicationInstance application = new ApplicationInstance();
application.ApplicationName = "Quickstart Console Reference Client";
application.ApplicationType = ApplicationType.Client;
// load the application configuration.
application.LoadApplicationConfiguration("ConsoleReferenceClient.Config.xml", false).Wait();
// check the application certificate.
application.CheckApplicationInstanceCertificate(false, 0).Wait();
// create the UA Client object and connect to configured server.
UAClient uaClient = new UAClient(application.ApplicationConfiguration);
if (uaClient.Connect())
{
// Run tests for available methods.
uaClient.ReadNodes();
uaClient.WriteNodes();
uaClient.Browse();
uaClient.CallMethod();
uaClient.SubscribeToDataChanges();
// Wait for some DataChange notifications from MonitoredItems
System.Threading.Thread.Sleep(20000);
uaClient.Disconnect();
}
else
{
Console.WriteLine("Could not connect to server!");
}
Console.WriteLine("\nProgram ended.");
Console.WriteLine("Press any key to finish...");
Console.ReadKey();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
/// <summary>
/// Main entry point.
/// </summary>
public static async Task Main(string[] args)
{
TextWriter output = Console.Out;
output.WriteLine("OPC UA Console Reference Client");
output.WriteLine("OPC UA library: {0} @ {1} -- {2}",
Utils.GetAssemblyBuildNumber(),
Utils.GetAssemblyTimestamp().ToString("G", CultureInfo.InvariantCulture),
Utils.GetAssemblySoftwareVersion());
// The application name and config file names
var applicationName = "ConsoleReferenceClient";
var configSectionName = "Quickstarts.ReferenceClient";
var usage = $"Usage: dotnet {applicationName}.dll [OPTIONS]";
// command line options
bool showHelp = false;
bool autoAccept = false;
bool logConsole = false;
bool appLog = false;
bool renewCertificate = false;
string password = null;
int timeout = Timeout.Infinite;
Mono.Options.OptionSet options = new Mono.Options.OptionSet {
usage,
{ "h|help", "show this message and exit", h => showHelp = h != null },
{ "a|autoaccept", "auto accept certificates (for testing only)", a => autoAccept = a != null },
{ "c|console", "log to console", c => logConsole = c != null },
{ "l|log", "log app output", c => appLog = c != null },
{ "p|password="******"optional password for private key", (string p) => password = p },
{ "r|renew", "renew application certificate", r => renewCertificate = r != null },
{ "t|timeout=", "timeout in seconds to exit application", (int t) => timeout = t * 1000 },
};
try
{
// parse command line and set options
var extraArg = ConsoleUtils.ProcessCommandLine(output, args, options, ref showHelp, false);
// connect Url?
Uri serverUrl = new Uri("opc.tcp://localhost:62541/Quickstarts/ReferenceServer");
if (!string.IsNullOrEmpty(extraArg))
{
serverUrl = new Uri(extraArg);
}
// log console output to logger
if (logConsole && appLog)
{
output = new LogWriter();
}
// Define the UA Client application
ApplicationInstance.MessageDlg = new ApplicationMessageDlg(output);
CertificatePasswordProvider PasswordProvider = new CertificatePasswordProvider(password);
ApplicationInstance application = new ApplicationInstance {
ApplicationName = applicationName,
ApplicationType = ApplicationType.Client,
ConfigSectionName = configSectionName,
CertificatePasswordProvider = PasswordProvider
};
// load the application configuration.
var config = await application.LoadApplicationConfiguration(silent : false);
// setup the logging
ConsoleUtils.ConfigureLogging(config, applicationName, logConsole, LogLevel.Information);
// delete old certificate
if (renewCertificate)
{
await application.DeleteApplicationInstanceCertificate().ConfigureAwait(false);
}
// check the application certificate.
bool haveAppCertificate = await application.CheckApplicationInstanceCertificate(false, minimumKeySize : 0).ConfigureAwait(false);
if (!haveAppCertificate)
{
throw new ErrorExitException("Application instance certificate invalid!", ExitCode.ErrorCertificate);
}
// wait for timeout or Ctrl-C
var quitEvent = ConsoleUtils.CtrlCHandler();
// connect to a server until application stopped
bool quit = false;
DateTime start = DateTime.UtcNow;
int waitTime = int.MaxValue;
do
{
if (timeout > 0)
{
waitTime = timeout - (int)DateTime.UtcNow.Subtract(start).TotalMilliseconds;
if (waitTime <= 0)
{
break;
}
}
// create the UA Client object and connect to configured server.
UAClient uaClient = new UAClient(application.ApplicationConfiguration, output, ClientBase.ValidateResponse)
{
AutoAccept = autoAccept
};
bool connected = await uaClient.ConnectAsync(serverUrl.ToString());
if (connected)
{
// Run tests for available methods.
uaClient.ReadNodes();
uaClient.WriteNodes();
uaClient.Browse();
uaClient.CallMethod();
uaClient.SubscribeToDataChanges();
// Wait for some DataChange notifications from MonitoredItems
quit = quitEvent.WaitOne(Math.Min(30_000, waitTime));
uaClient.Disconnect();
}
else
{
output.WriteLine("Could not connect to server! Retry in 10 seconds or Ctrl-C to quit.");
quit = quitEvent.WaitOne(Math.Min(10_000, waitTime));
}
} while (!quit);
output.WriteLine("\nClient stopped.");
}
catch (Exception ex)
{
output.WriteLine(ex.Message);
}
}