ApplicationParameters Property (UAClientEngineParameters)

Contains parameters that define the OPC UA application and its behavior.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Property ApplicationParameters As UAClientApplicationParameters

'Usage
 
Dim instance As UAClientEngineParameters
Dim value As UAClientApplicationParameters
 
instance.ApplicationParameters = value
 
value = instance.ApplicationParameters

public UAClientApplicationParameters ApplicationParameters {get; set;}

public:
property UAClientApplicationParameters^ ApplicationParameters {
   UAClientApplicationParameters^ get();
   void set (    UAClientApplicationParameters^ value);
}

Remarks

In order to obtain or modify this parameter, access the EasyUASharedParameters.EngineParameters property of static OpcLabs.EasyOpc.UA.EasyUAClient.SharedParameters.

Example

CSharp
Object Pascal
PHP
VB.NET
VBScript

// This example demonstrates how to set the application name for the client certificate.

using System;
using OpcLabs.BaseLib.Instrumentation;
using OpcLabs.EasyOpc.UA;
using OpcLabs.EasyOpc.UA.OperationModel;

namespace UADocExamples._UAApplicationManifest
{
    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 determines the subject of the client certificate.
                // Note that this only works once in each host process.
                EasyUAClient.SharedParameters.EngineParameters.ApplicationParameters.ApplicationManifest.ApplicationName = 
                    "QuickOPC - CSharp example application";

                // Do something - invoke an OPC read, to trigger some loggable entries.
                var client = new EasyUAClient();
                try
                {
                    client.ReadValue(endpointDescriptor, "nsu=http://test.org/UA/Data/;i=10853");
                }
                catch (UAException uaException)
                {
                    Console.WriteLine("*** Failure: {0}", uaException.GetBaseException().Message);
                }

                // The certificate will be located or created in a directory similar to:
                // C:\ProgramData\OPC Foundation\CertificateStores\MachineDefault\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("Finished.");
            }
            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);
        }
    }
}

// This example demonstrates how to set the application name for the client certificate.

type
  TClientConfigurationEventHandlers103 = class
    procedure OnLogEntry(
      ASender: TObject;
      sender: OleVariant;
      const eventArgs: _LogEntryEventArgs);
  end;

// Event handler for the LogEntry event.
// Print the loggable entry containing client certificate parameters.
procedure TClientConfigurationEventHandlers103.OnLogEntry(
  ASender: TObject;
  sender: OleVariant;
  const eventArgs: _LogEntryEventArgs);
begin
  if eventArgs.EventId = 161 then
      WriteLn(eventArgs.ToString);
end;

class procedure ApplicationName.Main;
var
  Client: OpcLabs_EasyOpcUA_TLB._EasyUAClient;
  ClientConfiguration: TEasyUAClientConfiguration;
  ClientConfigurationEventHandlers: TClientConfigurationEventHandlers103;
  Value: OleVariant;
begin
  // The configuration object allows access to static behavior - here, the
  // shared LogEntry event.
  ClientConfiguration := TEasyUAClientConfiguration.Create(nil);
  ClientConfigurationEventHandlers := TClientConfigurationEventHandlers103.Create;
  ClientConfiguration.OnLogEntry := ClientConfigurationEventHandlers.OnLogEntry;
  ClientConfiguration.Connect;

  try
    // Set the application name, which determines the subject of the client certificate.
    // Note that this only works once in each host process.
    ClientConfiguration.SharedParameters.EngineParameters.ApplicationParameters.ApplicationManifest.ApplicationName :=
      'QuickOPC - Delphi example application';

    // Do something - invoke an OPC read, to trigger some loggable entries.
    Client := CoEasyUAClient.Create;
    try
      Value := Client.ReadValue(
        'http://opcua.demo-this.com:51211/UA/SampleServer',
        'nsu=http://test.org/UA/Data/;i=10853');
    except
      on E: EOleException do
      begin
        WriteLn(Format('*** Failure: %s', [E.GetBaseException.Message]));
      end;
    end;

    // The certificate will be located or created in a directory similar to:
    // C:\ProgramData\OPC Foundation\CertificateStores\MachineDefault\certs
    // and its subject will be as given by the application name.

    WriteLn('Processing log entry events for 10 seconds...');
    PumpSleep(10*1000);

    WriteLn('Finished...');
  finally
    FreeAndNil(ClientConfiguration);
    FreeAndNil(ClientConfigurationEventHandlers);
  end;
end;

// This example demonstrates how to set the application name for the client certificate.

class ClientConfigurationEvents {
    // Event handler for the LogEntry event.
    // Print the loggable entry containing client certificate parameters.
    function LogEntry($Sender, $E)
    {
        if ($E->EventId = 161)
            printf("%s\n", $E);
    }
}

// The configuration object allows access to static behavior - here, the
// shared LogEntry event.
$ClientConfiguration = new COM("OpcLabs.EasyOpc.UA.EasyUAClientConfiguration");
$ClientConfigurationEvents = new ClientConfigurationEvents();
com_event_sink($ClientConfiguration, $ClientConfigurationEvents, "DEasyUAClientConfigurationEvents");

// Set the application name, which determines the subject of the client certificate.
// Note that this only works once in each host process.
$ClientConfiguration->SharedParameters->EngineParameters->ApplicationParameters->ApplicationManifest->ApplicationName =
    "QuickOPC - PHP example application";

// Do something - invoke an OPC read, to trigger some loggable entries.
$Client = new COM("OpcLabs.EasyOpc.UA.EasyUAClient");
try
{
    $value = $Client->ReadValue("http://opcua.demo-this.com:51211/UA/SampleServer", "nsu=http://test.org/UA/Data/;i=10853");
}
catch (com_exception $e)
{
    printf("*** Failure: %s\n", $e->getMessage());
}

// The certificate will be located or created in a directory similar to:
// C:\ProgramData\OPC Foundation\CertificateStores\MachineDefault\certs
// and its subject will be as given by the application name.

printf("Processing log entry events for 10 seconds...");
$startTime = time(); do { com_message_pump(1000); } while (time() < $startTime + 10);

printf("Finished.\n");

' This example demonstrates how to set the application name for the client certificate.

Imports OpcLabs.BaseLib.Instrumentation
Imports OpcLabs.EasyOpc.UA
Imports OpcLabs.EasyOpc.UA.OperationModel

Namespace UADocExamples._UAApplicationManifest
    Friend Class ApplicationName
        Public Shared Sub Main1()

            Dim endpointDescriptor As UAEndpointDescriptor =
                "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
            AddHandler EasyUAClient.LogEntry, AddressOf EasyUAClientOnLogEntry

            Try
                ' Set the application name, which determines the subject of the client certificate.
                ' Note that this only works once in each host process.
                EasyUAClient.SharedParameters.EngineParameters.ApplicationParameters.ApplicationManifest.ApplicationName =
                    "QuickOPC - VBNet example application"

                ' Do something - invoke an OPC read, to trigger some loggable entries.
                Dim client = New EasyUAClient()
                Try
                    client.ReadValue(endpointDescriptor, "nsu=http://test.org/UA/Data/;i=10853")
                Catch uaException As UAException
                    Console.WriteLine("*** Failure: {0}", uaException.GetBaseException.Message)
                    Exit Sub
                End Try

                ' The certificate will be located or created in a directory similar to:
                ' C:\ProgramData\OPC Foundation\CertificateStores\MachineDefault\certs
                ' and its subject will be as given by the application name.

                Console.WriteLine("Processing log entry events for 10 seconds...")
                Threading.Thread.Sleep(10 * 1000)

                Console.WriteLine("Finished.")
            Finally
                ' Unhook static events
                RemoveHandler EasyUAClient.LogEntry, AddressOf EasyUAClientOnLogEntry
            End Try

        End Sub


        ' Event handler for the LogEntry event.
        ' Print the loggable entry containing client certificate parameters.
        Private Shared Sub EasyUAClientOnLogEntry(ByVal sender As Object, ByVal logEntryEventArgs As LogEntryEventArgs)
            If (logEntryEventArgs.EventId = 161) Then
                Console.WriteLine(logEntryEventArgs)
            End If
        End Sub
    End Class
End Namespace

Rem This example demonstrates how to set the application name for the client certificate.

Option Explicit

' The configuration object allows access to static behavior.
Dim ClientConfiguration: Set ClientConfiguration = CreateObject("OpcLabs.EasyOpc.UA.EasyUAClientConfiguration")
WScript.ConnectObject ClientConfiguration, "ClientConfiguration_"

' Set the application name, which determins the subject of the client certificate.
' Note that this only works once in each host process.
ClientConfiguration.SharedParameters.EngineParameters.ApplicationParameters.ApplicationManifest.ApplicationName = "QuickOPC - VBScript example application"

' Do something - invoke an OPC read, to trigger some loggable entries.
Dim Client: Set Client = CreateObject("OpcLabs.EasyOpc.UA.EasyUAClient")
On Error Resume Next
Dim value: value = Client.ReadValue("http://opcua.demo-this.com:51211/UA/SampleServer", "nsu=http://test.org/UA/Data/;i=10853")
If Err.Number <> 0 Then
WScript.Echo "*** Failure: " & Err.Source & ": " & Err.Description
WScript.Quit
End If
On Error Goto 0

' The certificate will be located or created in a directory similar to:
' C:\Users\All Users\OPC Foundation\CertificateStores\UA Applications\certs\
' and its subject will be as given by the application name.

WScript.Echo "Processing log entry events for 10 seconds..."
WScript.Sleep 10*1000

WScript.Echo "Finished."

' Event handler for the LogEntry event.
' Print the loggable entry containing client certificate parameters.
Sub ClientConfiguration_LogEntry(Sender, e)
If e.EventId = 161 Then WScript.Echo e
End Sub

Requirements

Target Platforms: .NET Framework: Windows 10, Windows Server 2012; .NET Core: Linux, macOS, Microsoft Windows

Reference

UAClientEngineParameters Class
UAClientEngineParameters Members