// Parses an absolute OPC-UA browse path and displays its starting node and elements.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.
using System;
using OpcLabs.EasyOpc.UA.Navigation;
using OpcLabs.EasyOpc.UA.Navigation.Parsing;
namespace UACommonDocExamples._UABrowsePathParser
{
class Parse
{
public static void Main1()
{
var browsePathParser = new UABrowsePathParser();
UABrowsePath browsePath;
try
{
browsePath = browsePathParser.Parse("[ObjectsFolder]/Data/Static/UserScalar");
}
catch (UABrowsePathFormatException browsePathFormatException)
{
Console.WriteLine("*** Failure: {0}", browsePathFormatException.GetBaseException().Message);
return;
}
// Display results
Console.WriteLine("StartingNodeId: {0}", browsePath.StartingNodeId);
foreach (UABrowsePathElement browsePathElement in browsePath.Elements)
Console.WriteLine(browsePathElement);
// Example output:
// StartingNodeId: ObjectsFolder
// /Data
// /Static
// /UserScalar
}
}
}
' Parses an absolute OPC-UA browse path and displays its starting node and elements.
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
' a commercial license in order to use Online Forums, and we reply to every post.
Imports OpcLabs.EasyOpc.UA.Navigation
Imports OpcLabs.EasyOpc.UA.Navigation.Parsing
Namespace _UABrowsePathParser
Friend Class Parse
Public Shared Sub Main1()
Dim browsePathParser = New UABrowsePathParser()
Dim browsePath As UABrowsePath
Try
browsePath = browsePathParser.Parse("[ObjectsFolder]/Data/Static/UserScalar")
Catch browsePathFormatException As UABrowsePathFormatException
Console.WriteLine("*** Failure: {0}", browsePathFormatException.GetBaseException.Message)
Exit Sub
End Try
' Display results
Console.WriteLine("StartingNodeId: {0}", browsePath.StartingNodeId)
For Each browsePathElement As UABrowsePathElement In browsePath.Elements
Console.WriteLine(browsePathElement)
Next browsePathElement
' Example output:
' StartingNodeId: ObjectsFolder
' /Data
' /Static
' /UserScalar
End Sub
End Class
End Namespace
// Parses an absolute OPC-UA browse path and displays its starting node and elements.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in Object Pascal (Delphi) on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-OP .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.
class procedure Parse.Main;
var
BrowsePath: _UABrowsePath;
BrowsePathElement: _UABrowsePathElement;
BrowsePathParser: OpcLabs_EasyOpcUA_TLB._UABrowsePathParser;
Count: Cardinal;
Element: OleVariant;
ElementEnumerator: IEnumVariant;
begin
BrowsePathParser := CoUABrowsePathParser.Create;
try
BrowsePath := BrowsePathParser.Parse('[ObjectsFolder]/Data/Static/UserScalar');
except
on E: EOleException do
begin
WriteLn(Format('*** Failure: %s', [E.GetBaseException.Message]));
Exit;
end;
end;
// Display results
WriteLn('StartingNodeId: ', BrowsePath.StartingNodeId.ToString);
WriteLn('Elements:');
ElementEnumerator := BrowsePath.Elements.GetEnumerator;
while (ElementEnumerator.Next(1, Element, Count) = S_OK) do
begin
BrowsePathElement := IUnknown(Element) as _UABrowsePathElement;
WriteLn(BrowsePathElement.ToString);
end;
// Example output:
// StartingNodeId: ObjectsFolder
// Elements:
// /Data
// /Static
// /UserScalar
end;
// Parses an absolute OPC-UA browse path and displays its starting node and elements.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in PHP on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-PHP .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.
$BrowsePathParser = new COM("OpcLabs.EasyOpc.UA.Navigation.Parsing.UABrowsePathParser");
try
{
$BrowsePath = $BrowsePathParser->Parse("[ObjectsFolder]/Data/Static/UserScalar");
}
catch (com_exception $e)
{
printf("*** Failure: %s\n", $e->getMessage());
exit();
}
// Display results
printf("StartingNodeId: %s\n", $BrowsePath->StartingNodeId);
printf("Elements:\n");
for ($i = 0; $i < $BrowsePath->Elements->Count; $i++)
{
printf("%s\n", $BrowsePath->Elements[$i]);
}
// Example output:
// StartingNodeId: ObjectsFolder
// Elements:
// /Data
// /Static
// /UserScalar
REM Parses an absolute OPC-UA browse path and displays its starting node and elements.
REM
REM Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
REM OPC client and subscriber examples in Visual Basic on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VB .
REM Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
REM a commercial license in order to use Online Forums, and we reply to every post.
Private Sub Parse_Main_Command_Click()
OutputText = ""
Dim BrowsePathParser As New UABrowsePathParser
On Error Resume Next
Dim browsePath As UABrowsePath
Set browsePath = BrowsePathParser.Parse("[ObjectsFolder]/Data/Static/UserScalar")
If Err.Number <> 0 Then
OutputText = OutputText & "*** Failure: " & Err.Source & ": " & Err.Description & vbCrLf
Exit Sub
End If
On Error GoTo 0
' Display results
OutputText = OutputText & "StartingNodeId: " & browsePath.StartingNodeId & vbCrLf
OutputText = OutputText & "Elements:" & vbCrLf
Dim BrowsePathElement: For Each BrowsePathElement In browsePath.Elements
OutputText = OutputText & BrowsePathElement & vbCrLf
Next
' Example output:
'StartingNodeId: ObjectsFolder
'Elements:
'/Data
'/Static
'/UserScalar
End Sub
# Parses an absolute OPC-UA browse path and displays its starting node and elements.
#
# Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
# OPC client and subscriber examples in Python on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-Python .
# Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
# a commercial license in order to use Online Forums, and we reply to every post.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc
# Import .NET namespaces.
from OpcLabs.EasyOpc.UA import *
from OpcLabs.EasyOpc.UA.Navigation import *
from OpcLabs.EasyOpc.UA.Navigation.Parsing import *
browsePathParser = UABrowsePathParser()
try:
browsePath = browsePathParser.Parse('[ObjectsFolder]/Data/Static/UserScalar')
except UABrowsePathFormatException as browsePathFormatException:
print('*** Failure: ' + browsePathFormatException.GetBaseException().Message)
exit()
# Display results.
print('StartingNodeId: ', browsePath.StartingNodeId, sep='')
print()
for browsePathElement in browsePath.Elements:
print(browsePathElement)
print()
print('Finished.')
