// Shows how to copy an OPC UA file, using the file transfer client.
// Note: Consider using a higher-level abstraction, OPC UA file provider, instead.
using System;
using OpcLabs.EasyOpc.UA;
using OpcLabs.EasyOpc.UA.AddressSpace;
using OpcLabs.EasyOpc.UA.Extensions;
using OpcLabs.EasyOpc.UA.FileTransfer;
using OpcLabs.EasyOpc.UA.OperationModel;
namespace UADocExamples.FileTransfer._EasyUAFileTransferClient
{
class Copy
{
public static void File1()
{
// Unified Automation .NET based demo server (UaNETServer/UaServerNET.exe)
var endpointDescriptor = new UAEndpointDescriptor("opc.tcp://localhost:48030")
.WithUserNameIdentity("john", "master");
// An object that aggregates an OPC UA file system.
UANodeDescriptor objectDescriptor = "nsu=http://www.unifiedautomation.com/DemoServer/ ;s=Demo.Files";
// Create a random number generator - will be used for file/directory names.
var random = new Random();
// Instantiate the file transfer client object
var fileTransferClient = new EasyUAFileTransferClient();
// Create a file, and a directory. Then, copy the file into the directory.
try
{
// The file system node is a root directory of the file system.
Console.WriteLine("Getting file system...");
UANodeDescriptor fileSystemNodeDescriptor = fileTransferClient.GetFileSystem(endpointDescriptor, objectDescriptor);
string fileName = "MyFile-" + random.Next();
Console.WriteLine($"Creating file, '{fileName}'...");
UANodeId fileNodeId = fileTransferClient.CreateFile(endpointDescriptor, fileSystemNodeDescriptor, fileName);
Console.WriteLine($"Node Id of the file: {fileNodeId}");
string directoryName = "MyDirectory-" + random.Next();
Console.WriteLine($"Creating directory, '{directoryName}'...");
UANodeId directoryNodeId = fileTransferClient.CreateDirectory(endpointDescriptor, fileSystemNodeDescriptor, directoryName);
Console.WriteLine($"Node Id of the directory: {directoryNodeId}");
Console.WriteLine("Copying the file...");
fileTransferClient.CopyFile(endpointDescriptor, fileSystemNodeDescriptor, fileNodeId, directoryNodeId);
}
catch (UAException uaException)
{
Console.WriteLine("*** Failure: {0}", uaException.GetBaseException().Message);
return;
}
Console.WriteLine("Finished...");
}
}
}
# Shows how to copy an OPC UA file, using the file transfer client.
# Note: Consider using a higher-level abstraction, OPC UA file provider, instead.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc
import random
# Import .NET namespaces.
from OpcLabs.EasyOpc.UA import *
from OpcLabs.EasyOpc.UA.Extensions import *
from OpcLabs.EasyOpc.UA.FileTransfer import *
from OpcLabs.EasyOpc.UA.OperationModel import *
# Unified Automation .NET based demo server (UaNETServer/UaServerNET.exe).
endpointDescriptor = UAEndpointDescriptor('opc.tcp://localhost:48030')
endpointDescriptor = UAEndpointDescriptorExtension.WithUserNameIdentity(endpointDescriptor,'john', 'master')
# An object that aggregates an OPC UA file system.
objectDescriptor = UANodeDescriptor('nsu=http://www.unifiedautomation.com/DemoServer/ ;s=Demo.Files')
# Create a random number generator - will be used for file/directory names.
random = random.Random()
# Instantiate the file transfer client object.
fileTransferClient = EasyUAFileTransferClient()
# Prevent prompt to trust the server certificate (INSECURE, used just for smooth example flow).
EasyUAClient.SharedParameters.EngineParameters.CertificateAcceptancePolicy.TrustEndpointUrlString(
endpointDescriptor.UrlString)
# Create a file, and a directory. Then, copy the file into the directory.
try:
# The file system node is a root directory of the file system.
print('Getting file system...')
fileSystemNodeDescriptor = IEasyUAFileTransferExtension.GetFileSystem(fileTransferClient,
endpointDescriptor, objectDescriptor)
fileName = 'MyFile-' + str(random.randint(0, 999_999_999))
print("Creating file, '", fileName, "'...", sep='')
fileNodeId = IEasyUAFileTransferExtension.CreateFile(fileTransferClient,
endpointDescriptor, fileSystemNodeDescriptor, fileName)
print('Node Id of the file: ', fileNodeId, sep='')
directoryName = 'MyDirectory-' + str(random.randint(0, 999_999_999))
print("Creating directory, '", directoryName, "'...", sep='')
directoryNodeId = fileTransferClient.CreateDirectory(endpointDescriptor,
fileSystemNodeDescriptor,
directoryName)
print('Node Id of the directory: ', directoryNodeId, sep='')
print('Copying the file...')
IEasyUAFileTransferExtension.CopyFile(fileTransferClient,
endpointDescriptor, fileSystemNodeDescriptor, fileNodeId, directoryNodeId)
# If you want browse for directories, use the BrowseDirectories method instead.
except UAException as uaException:
print('*** Failure: ' + uaException.GetBaseException().Message)
exit()
print()
print('Finished.')
' Shows how to copy an OPC UA file, using the file transfer client.
' Note: Consider using a higher-level abstraction, OPC UA file provider, instead.
Imports OpcLabs.EasyOpc.UA
Imports OpcLabs.EasyOpc.UA.AddressSpace
Imports OpcLabs.EasyOpc.UA.Extensions
Imports OpcLabs.EasyOpc.UA.FileTransfer
Imports OpcLabs.EasyOpc.UA.OperationModel
Namespace FileTransfer._EasyUAFileTransferClient
Friend Class Copy
Public Shared Sub File1()
' Unified Automation .NET based demo server (UaNETServer/UaServerNET.exe)
Dim endpointDescriptor As UAEndpointDescriptor =
New UAEndpointDescriptor("opc.tcp://localhost:48030") _
.WithUserNameIdentity("john", "master")
' An object that aggregates an OPC UA file system.
Dim objectDescriptor As UANodeDescriptor = "nsu=http://www.unifiedautomation.com/DemoServer/ ;s=Demo.Files"
' Create a random number generator - will be used for file/directory names.
Dim random = New Random
' Instantiate the file transfer client object
Dim fileTransferClient = New EasyUAFileTransferClient
' Create a file, and a directory. Then, copy the file into the directory.
Try
' The file system node is a root directory of the file system.
Console.WriteLine("Getting file system...")
Dim fileSystemNodeDescriptor As UANodeDescriptor = fileTransferClient.GetFileSystem(endpointDescriptor, objectDescriptor)
Dim fileName As String = "MyFile-" & random.Next()
Console.WriteLine($"Creating file, '{fileName}'...")
Dim fileNodeId As UANodeId = fileTransferClient.CreateFile(endpointDescriptor, fileSystemNodeDescriptor, fileName)
Console.WriteLine($"Node Id of the file: {fileNodeId}")
Dim directoryName As String = "MyDirectory-" & random.Next()
Console.WriteLine($"Creating directory, '{directoryName}'...")
Dim directoryNodeId As UANodeId = fileTransferClient.CreateDirectory(endpointDescriptor, fileSystemNodeDescriptor, directoryName)
Console.WriteLine($"Node Id of the directory: {directoryNodeId}")
Console.WriteLine("Copying the file...")
fileTransferClient.CopyFile(endpointDescriptor, fileSystemNodeDescriptor, fileNodeId, directoryNodeId)
Catch uaException As UAException
Console.WriteLine("*** Failure: {0}", uaException.GetBaseException.Message)
Exit Sub
End Try
Console.WriteLine("Finished...")
End Sub
End Class
End Namespace
