LoadPredefinedNodes bug

[xky0007]

Type of issue

• Bug
• Enhancement
• Compliance
• Question
• Help wanted

Current Behavior

Load xml nodeset file has bug {BadDecodingError 'Could not resolve namespace uri: http://opcfoundation.org/UA/2011/03/UANodeSet.xsd'}

Inside public class MyNodeManager : CustomNodeManager2

        protected override NodeStateCollection LoadPredefinedNodes(ISystemContext context)
        {
            var importedNodeStates = new NodeStateCollection();
            FileStream fs = new FileStream("trumpf.signalbridge.ua4mt.xml", FileMode.Open);
            importedNodeStates.LoadFromXml(context, fs, true);
            return importedNodeStates;
        }

Expected Behavior

Load all nodes in xml nodeset file

Steps To Reproduce

No response

Environment

- OS:Windows 11
- Environment:VS 2022 17.11.5
- Runtime: .Net Core 6
- Nuget Version:1.4.372.76
- Component: Opc.Ua.Core

Anything else?

Nodeset xml file:

<?xml version="1.0" encoding="utf-8"?>
<UANodeSet LastModified="2024-11-26T07:52:22.445Z" xmlns="http://opcfoundation.org/UA/2011/03/UANodeSet.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xmlns:uax="http://opcfoundation.org/UA/2008/02/Types.xsd" xmlns:si="http://www.siemens.com/OPCUA/2017/SimaticNodeSetExtensions" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
	<NamespaceUris>
		<Uri>http://abc</Uri>
	</NamespaceUris>
	<Models>
		<Model ModelUri="http://abc" PublicationDate="2024-11-26T15:48:49+08:00" Version="1.00">
			<RequiredModel ModelUri="http://opcfoundation.org/UA/" PublicationDate="2021-09-15T00:00:00Z" Version="1.04.10"/>
		</Model>
	</Models>
	<Aliases>
		<Alias Alias="Boolean">i=1</Alias>
		<Alias Alias="DateTime">i=13</Alias>
		<Alias Alias="String">i=12</Alias>
		<Alias Alias="HasComponent">i=47</Alias>
		<Alias Alias="HasProperty">i=46</Alias>
		<Alias Alias="Organizes">i=35</Alias>
		<Alias Alias="HasTypeDefinition">i=40</Alias>
	</Aliases>
	<Extensions>
		<Extension>
			<si:Generator Product="SiOME" Edition="Standard" Version="2.8.8"/>
		</Extension>
		<Extension>
			<si:GeneratorExtension Hash="5871d63d7fd712b4d4d808825c0925e1"/>
		</Extension>
	</Extensions>
	<UAObject SymbolicName="http___abc" NodeId="ns=1;i=5000" BrowseName="1:http://abc" ParentNodeId="i=11715">
		<DisplayName>http://abc</DisplayName>
		<References>
			<Reference ReferenceType="HasComponent" IsForward="false">i=11715</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=11616</Reference>
		</References>
	</UAObject>
	<UAVariable DataType="Boolean" NodeId="ns=1;i=6000" BrowseName="IsNamespaceSubset" ParentNodeId="ns=1;i=5000">
		<DisplayName>IsNamespaceSubset</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
	</UAVariable>
	<UAVariable DataType="DateTime" NodeId="ns=1;i=6001" BrowseName="NamespacePublicationDate" ParentNodeId="ns=1;i=5000">
		<DisplayName>NamespacePublicationDate</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
		<Value>
			<uax:DateTime>2024-11-26T15:48:49+08:00</uax:DateTime>
		</Value>
	</UAVariable>
	<UAVariable DataType="String" NodeId="ns=1;i=6002" BrowseName="NamespaceUri" ParentNodeId="ns=1;i=5000">
		<DisplayName>NamespaceUri</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
		<Value>
			<uax:String>http://abc</uax:String>
		</Value>
	</UAVariable>
	<UAVariable DataType="String" NodeId="ns=1;i=6003" BrowseName="NamespaceVersion" ParentNodeId="ns=1;i=5000">
		<DisplayName>NamespaceVersion</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
		<Value>
			<uax:String>1.00</uax:String>
		</Value>
	</UAVariable>
	<UAVariable DataType="i=256" ValueRank="1" NodeId="ns=1;i=6004" BrowseName="StaticNodeIdTypes" ParentNodeId="ns=1;i=5000">
		<DisplayName>StaticNodeIdTypes</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
	</UAVariable>
	<UAVariable DataType="i=291" ValueRank="1" NodeId="ns=1;i=6005" BrowseName="StaticNumericNodeIdRange" ParentNodeId="ns=1;i=5000">
		<DisplayName>StaticNumericNodeIdRange</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
	</UAVariable>
	<UAVariable DataType="String" NodeId="ns=1;i=6006" BrowseName="StaticStringNodeIdPattern" ParentNodeId="ns=1;i=5000">
		<DisplayName>StaticStringNodeIdPattern</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
	</UAVariable>
	<UAVariable DataType="i=96" ValueRank="1" NodeId="ns=1;i=6007" BrowseName="DefaultRolePermissions" ParentNodeId="ns=1;i=5000">
		<DisplayName>DefaultRolePermissions</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
	</UAVariable>
	<UAVariable DataType="i=95" NodeId="ns=1;i=6008" BrowseName="DefaultAccessRestrictions" ParentNodeId="ns=1;i=5000">
		<DisplayName>DefaultAccessRestrictions</DisplayName>
		<References>
			<Reference ReferenceType="HasProperty" IsForward="false">ns=1;i=5000</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=68</Reference>
		</References>
	</UAVariable>
	<UAObject NodeId="ns=1;i=5001" BrowseName="1:umat" ParentNodeId="i=85">
		<DisplayName>umat</DisplayName>
		<References>
			<Reference ReferenceType="Organizes" IsForward="false">i=85</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=61</Reference>
		</References>
	</UAObject>
	<UAObject NodeId="ns=1;i=5002" BrowseName="1:Status" ParentNodeId="ns=1;i=5001">
		<DisplayName>Status</DisplayName>
		<References>
			<Reference ReferenceType="Organizes" IsForward="false">ns=1;i=5001</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=58</Reference>
		</References>
	</UAObject>
	<UAVariable DataType="Boolean" NodeId="ns=1;i=6009" BrowseName="1:Running" ParentNodeId="ns=1;i=5002" UserAccessLevel="3" AccessLevel="3">
		<DisplayName>Running</DisplayName>
		<References>
			<Reference ReferenceType="HasComponent" IsForward="false">ns=1;i=5002</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=63</Reference>
		</References>
	</UAVariable>
	<UAVariable DataType="Boolean" NodeId="ns=1;i=6010" BrowseName="1:Stopped" ParentNodeId="ns=1;i=5002" UserAccessLevel="3" AccessLevel="3">
		<DisplayName>Stopped</DisplayName>
		<References>
			<Reference ReferenceType="HasComponent" IsForward="false">ns=1;i=5002</Reference>
			<Reference ReferenceType="HasTypeDefinition">i=63</Reference>
		</References>
	</UAVariable>
</UANodeSet>

[romanett]

@xky0007 Can you try to use the model Compiler to generate an xml for use with the LoadFromXml method.
https://github.com/OPCFoundation/UA-ModelCompiler

I suppose this will maybe solve your issue.

[xky0007]

@romanett
I followed the read.me and run .\Opc.Ua.ModelCompiler.exe compile -d2 .\1.xml -o2 .\output but got many files. None of these files contains the node BrowseName="1:Running".

And where can I find the difference for NodeSet and NodeSet2 definition? Thanks.

[romanett]

@xky0007 i am not familiar with how to create a valid UANodeSet file.
More information can be found here: https://github.com/OPCFoundation/UA-ModelCompiler/blob/master/Opc.Ua.ModelCompiler/UA%20Model%20Design.xsd

NodeSet2 shall be used for any new nodesets published if i remember correctly.

You can use the abc.PredefinedNodes.xml to intialize the predefined nodes.

[vj300]

I get the same error when loading a NodeSet2.xml file

Opc.Ua.ServiceResultException
  HResult=0x80131500
  Message=Could not resolve namespace uri: http://opcfoundation.org/UA/2011/03/UANodeSet.xsd
  Source=Opc.Ua.Core
  StackTrace:
   at Opc.Ua.NodeState.LoadNode(ISystemContext context, XmlDecoder decoder) in /_/Stack/Opc.Ua.Core/Stack/State/NodeState.cs:line 1743
   at Opc.Ua.NodeStateCollection.LoadFromXml(ISystemContext context, Stream istrm, Boolean updateTables) in /_/Stack/Opc.Ua.Core/Stack/State/NodeStateCollection.cs:line 386
   at Opc.Ua.NodeStateCollection.LoadFromResource(ISystemContext context, String resourcePath, Assembly assembly, Boolean updateTables) in /_/Stack/Opc.Ua.Core/Stack/State/NodeStateCollection.cs:line 425
   at Opc.Ua.Server.CustomNodeManager2.LoadPredefinedNodes(ISystemContext context, Assembly assembly, String resourcePath, IDictionary`2 externalReferences) in /_/Libraries/Opc.Ua.Server/Diagnostics/CustomNodeManager.cs:line 512

I was able to resolve this, by loading the required model files first and also sorting the nodes in the Nodeset2.xml files so that the parent nodes are defined before any of the child nodes referring to it.