// 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
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 VBScript on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBScript .
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.
Option Explicit
Dim BrowsePathParser: Set BrowsePathParser = CreateObject("OpcLabs.EasyOpc.UA.Navigation.Parsing.UABrowsePathParser")
On Error Resume Next
Dim BrowsePath: Set BrowsePath = BrowsePathParser.Parse("[ObjectsFolder]/Data/Static/UserScalar")
If Err.Number <> 0 Then
WScript.Echo "*** Failure: " & Err.Source & ": " & Err.Description
WScript.Quit
End If
On Error Goto 0
' Display results
WScript.Echo "StartingNodeId: " & BrowsePath.StartingNodeId
WScript.Echo "Elements:"
Dim BrowsePathElement: For Each BrowsePathElement In BrowsePath.Elements
WScript.Echo BrowsePathElement
Next
