// This example demonstrates how to set the application name for the client certificate.
 
using System;
using OpcLabs.BaseLib.Instrumentation;
using OpcLabs.EasyOpc.UA;
 
namespace UADocExamples._UAApplicationParameters
{
    class ApplicationName
    {
        public static void Main1()
        {
            UAEndpointDescriptor endpointDescriptor =
                "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
            // or "http://opcua.demo-this.com:51211/UA/SampleServer" (not in .NET Standard)
            // or "https://opcua.demo-this.com:51212/UA/SampleServer/"
 
            // Hook static events
            EasyUAClient.LogEntry += EasyUAClientOnLogEntry;
 
            try
            {
                // Set the application name, which determins the subject of the client certificate.
                // Note that this only works once in each host process.
                EasyUAClient.SharedParameters.EngineParameters.ApplicationParameters.ApplicationName = 
                    "QuickOPC - CSharp example application";
 
                // Do something - invoke an OPC read, to trigger some loggable entries.
                var client = new EasyUAClient();
                client.ReadValue(endpointDescriptor, "nsu=http://test.org/UA/Data/;i=10853");
 
                // The certificate will be located or created in a directory similar to:
                // C:\ProgramData\OPC Foundation\CertificateStores\MachineDefault\certs
                // or
                // C:\Users\All Users\OPC Foundation\CertificateStores\UA Applications\certs\
                // and its subject will be as given by the application name.
 
                Console.WriteLine("Processing log entry events for 10 seconds...");
                System.Threading.Thread.Sleep(10 * 1000);
 
                Console.WriteLine("Done.");
            }
            finally
            {
                // Unhook static events
                EasyUAClient.LogEntry -= EasyUAClientOnLogEntry;
            }
        }
 
        // Event handler for the LogEntry event.
        // Print the loggable entry containing client certificate parameters.
        private static void EasyUAClientOnLogEntry(object sender, LogEntryEventArgs logEntryEventArgs)
        {
            if (logEntryEventArgs.EventId == 161)
                Console.WriteLine(logEntryEventArgs);
        }
    }
}