/// <summary>
/// Initializes the instance with its defalt attribute values.
/// </summary>
protected InstanceNodeModel(NodeClass nodeClass, BaseNodeModel parent) :
base(nodeClass)
{
Parent = parent;
if (Parent != null)
{
ReferenceTypeId = ReferenceTypeIds.HasComponent;
}
}
/// <summary>
/// Convert to stack object
/// </summary>
/// <param name="nodeModel"></param>
/// <param name="context"></param>
/// <param name="parent"></param>
/// <returns></returns>
public static NodeState ToNodeState(this BaseNodeModel nodeModel, ISystemContext context,
NodeState parent = null)
{
NodeState state;
switch (nodeModel)
{
case ViewNodeModel viewState:
state = new ViewState {
ContainsNoLoops = viewState.ContainsNoLoops ?? false,
EventNotifier = viewState.EventNotifier ?? EventNotifiers.None,
};
break;
case TypeNodeModel typeState:
switch (typeState)
{
case VariableTypeNodeModel variableType:
switch (variableType)
{
case DataVariableTypeNodeModel data:
state = new BaseDataVariableTypeState();
break;
case PropertyTypeNodeModel property:
state = new PropertyTypeState();
break;
default:
return(null);
}
var baseVariableTypeState = state as BaseVariableTypeState;
baseVariableTypeState.ArrayDimensions =
variableType.ArrayDimensions;
baseVariableTypeState.DataType =
variableType.DataType;
baseVariableTypeState.ValueRank =
variableType.ValueRank ?? ValueRanks.Scalar;
baseVariableTypeState.WrappedValue =
variableType.Value ?? Variant.Null;
break;
case ObjectTypeNodeModel objectType:
state = new BaseObjectTypeState();
break;
case ReferenceTypeNodeModel referenceType:
state = new ReferenceTypeState {
Symmetric = referenceType.Symmetric ?? false,
InverseName = referenceType.InverseName
};
break;
case DataTypeNodeModel dataType:
state = new DataTypeState {
// Definition = dataType.Definition.ToDataTypeDefinition()
};
break;
default:
return(null);
}
var baseTypeState = state as BaseTypeState;
baseTypeState.IsAbstract = typeState.IsAbstract ?? false;
break;
case InstanceNodeModel instanceState:
switch (instanceState)
{
case VariableNodeModel variable:
switch (variable)
{
case DataVariableNodeModel data:
state = new BaseDataVariableState(parent);
break;
case PropertyNodeModel property:
state = new PropertyState(parent);
break;
default:
return(null);
}
var baseVariableState = state as BaseVariableState;
baseVariableState.ArrayDimensions =
variable.ArrayDimensions;
baseVariableState.DataType =
variable.DataType;
baseVariableState.ValueRank =
variable.ValueRank ?? ValueRanks.Scalar;
baseVariableState.Value =
variable.Value?.Value;
baseVariableState.AccessLevel =
variable.AccessLevel ?? AccessLevels.CurrentRead;
baseVariableState.UserAccessLevel =
variable.UserAccessLevel ?? AccessLevels.CurrentRead;
baseVariableState.IsValueType =
variable.IsValueType;
baseVariableState.Historizing =
variable.Historizing ?? false;
baseVariableState.MinimumSamplingInterval =
variable.MinimumSamplingInterval ?? 0.0;
baseVariableState.ModellingRuleId =
variable.ModellingRuleId;
baseVariableState.NumericId =
variable.NumericId;
baseVariableState.ReferenceTypeId =
variable.ReferenceTypeId;
baseVariableState.StatusCode =
variable.StatusCode ?? StatusCodes.Good;
baseVariableState.Timestamp =
variable.Timestamp ?? DateTime.MinValue;
baseVariableState.TypeDefinitionId =
variable.TypeDefinitionId;
break;
case ObjectNodeModel obj:
state = new BaseObjectState(parent)
{
EventNotifier = obj.EventNotifier ?? EventNotifiers.None
};
break;
case MethodNodeModel method:
state = new MethodState(parent)
{
UserExecutable = method.UserExecutable,
Executable = method.Executable,
MethodDeclarationId = method.MethodDeclarationId
};
break;
default:
return(null);
}
break;
default:
return(null);
}
state.BrowseName = nodeModel.BrowseName;
state.Description = nodeModel.Description;
state.DisplayName = nodeModel.DisplayName;
state.Handle = nodeModel.Handle;
state.NodeId = nodeModel.NodeId;
state.SymbolicName = nodeModel.SymbolicName;
state.WriteMask = nodeModel.WriteMask ?? AttributeWriteMask.None;
state.UserWriteMask = nodeModel.UserWriteMask ?? AttributeWriteMask.None;
state.Initialized = true;
foreach (var child in nodeModel.GetChildren(context))
{
state.AddChild(child.ToNodeState(context, state) as BaseInstanceState);
}
foreach (var reference in nodeModel.References)
{
state.AddReference(reference.ReferenceTypeId, reference.IsInverse,
reference.TargetId);
}
return(state);
}
/// <summary>
/// Convert to node attributes
/// be encoded.
/// </summary>
/// <param name="nodeModel"></param>
/// <param name="context"></param>
/// <returns></returns>
public static INodeAttributes ToNodeAttributes(this BaseNodeModel nodeModel,
ISystemContext context)
{
var raw = new NodeAttributeSet(nodeModel.NodeId, context.NamespaceUris)
{
BrowseName = nodeModel.BrowseName,
DisplayName = nodeModel.DisplayName,
Description = nodeModel.Description,
WriteMask = (uint?)nodeModel.WriteMask,
AccessRestrictions = nodeModel.AccessRestrictions,
RolePermissions = nodeModel.RolePermissions,
UserRolePermissions = nodeModel.UserRolePermissions,
UserWriteMask = (uint?)nodeModel.UserWriteMask
};
switch (nodeModel)
{
case ObjectNodeModel o:
raw.NodeClass = NodeClass.Object;
raw.EventNotifier = o.EventNotifier;
break;
case VariableNodeModel o:
raw.NodeClass = NodeClass.Variable;
raw.DataType = o.DataType;
raw.ValueRank = o.ValueRank;
raw.ArrayDimensions = o.ArrayDimensions;
raw.AccessLevel = o.AccessLevel;
raw.AccessLevelEx = o.AccessLevel;
raw.UserAccessLevel = (byte)o.UserAccessLevel;
raw.MinimumSamplingInterval = o.MinimumSamplingInterval;
raw.Historizing = o.Historizing;
raw.Value = new Variant(o.Value);
break;
case VariableTypeNodeModel o:
raw.NodeClass = NodeClass.VariableType;
raw.IsAbstract = o.IsAbstract;
raw.DataType = o.DataType;
raw.ValueRank = o.ValueRank;
raw.ArrayDimensions = o.ArrayDimensions;
raw.Value = new Variant(o.Value);
break;
case MethodNodeModel o:
raw.NodeClass = NodeClass.Method;
raw.Executable = o.Executable;
raw.UserExecutable = o.UserExecutable;
break;
case ObjectTypeNodeModel o:
raw.NodeClass = NodeClass.ObjectType;
raw.IsAbstract = o.IsAbstract;
break;
case DataTypeNodeModel o:
raw.NodeClass = NodeClass.DataType;
raw.IsAbstract = o.IsAbstract;
raw.DataTypeDefinition = new ExtensionObject(o.Definition);
break;
case ReferenceTypeNodeModel o:
raw.NodeClass = NodeClass.ReferenceType;
raw.InverseName = o.InverseName;
raw.IsAbstract = o.IsAbstract;
raw.Symmetric = o.Symmetric;
break;
case ViewNodeModel o:
raw.NodeClass = NodeClass.View;
raw.ContainsNoLoops = o.ContainsNoLoops;
break;
}
foreach (var reference in nodeModel.GetAllReferences(context))
{
raw.References.Add(reference);
}
return(raw);
}
/// <summary>
/// Convert to service object
/// </summary>
/// <param name="state"></param>
/// <param name="context"></param>
/// <param name="parent"></param>
/// <returns></returns>
public static BaseNodeModel ToNodeModel(this NodeState state, ISystemContext context,
BaseNodeModel parent = null)
{
BaseNodeModel nodeModel;
switch (state)
{
case ViewState viewState:
nodeModel = new ViewNodeModel {
ContainsNoLoops = viewState.ContainsNoLoops.ToNullable(false),
EventNotifier = viewState.EventNotifier.ToNullable(EventNotifiers.None),
};
break;
case BaseTypeState typeState:
switch (typeState)
{
case BaseVariableTypeState variableType:
switch (variableType)
{
case BaseDataVariableTypeState data:
nodeModel = new DataVariableTypeNodeModel();
break;
case PropertyTypeState property:
nodeModel = new PropertyTypeNodeModel();
break;
default:
return(null);
}
var baseVariableTypeState = nodeModel as VariableTypeNodeModel;
baseVariableTypeState.ArrayDimensions =
variableType.ArrayDimensions?.ToArray();
baseVariableTypeState.DataType =
variableType.DataType;
baseVariableTypeState.ValueRank =
variableType.ValueRank.ToNullable(ValueRanks.Scalar);
baseVariableTypeState.Value =
variableType.WrappedValue;
break;
case BaseObjectTypeState objectType:
nodeModel = new ObjectTypeNodeModel();
break;
case ReferenceTypeState referenceType:
nodeModel = new ReferenceTypeNodeModel {
Symmetric = referenceType.Symmetric.ToNullable(false),
InverseName = referenceType.InverseName
};
break;
case DataTypeState dataType:
nodeModel = new DataTypeNodeModel {
// Definition = dataType.Definition.ToDataTypeDefinition(),
Purpose = Schema.DataTypePurpose.Normal
};
break;
default:
return(null);
}
var baseTypeState = nodeModel as TypeNodeModel;
baseTypeState.IsAbstract = typeState.IsAbstract.ToNullable(false);
break;
case BaseInstanceState instanceState:
switch (instanceState)
{
case BaseVariableState variable:
switch (variable)
{
case BaseDataVariableState data:
nodeModel = new DataVariableNodeModel(parent);
break;
case PropertyState property:
nodeModel = new PropertyNodeModel(parent);
break;
default:
return(null);
}
var baseVariableState = nodeModel as VariableNodeModel;
baseVariableState.ArrayDimensions =
variable.ArrayDimensions.ToArray();
baseVariableState.DataType =
variable.DataType;
baseVariableState.ValueRank =
variable.ValueRank.ToNullable(ValueRanks.Scalar);
baseVariableState.Value =
variable.WrappedValue;
baseVariableState.AccessLevel =
variable.AccessLevel.ToNullable(AccessLevels.CurrentRead);
baseVariableState.UserAccessLevel =
variable.UserAccessLevel.ToNullable(AccessLevels.CurrentRead);
baseVariableState.IsValueType =
variable.IsValueType;
baseVariableState.Historizing =
variable.Historizing.ToNullable(false);
baseVariableState.MinimumSamplingInterval =
variable.MinimumSamplingInterval.ToNullable(0.0);
baseVariableState.ModellingRuleId =
variable.ModellingRuleId;
baseVariableState.NumericId =
variable.NumericId;
baseVariableState.ReferenceTypeId =
variable.ReferenceTypeId;
baseVariableState.StatusCode =
variable.StatusCode.ToNullable(StatusCodes.Good);
baseVariableState.Timestamp =
variable.Timestamp.ToNullable(DateTime.MinValue);
baseVariableState.TypeDefinitionId =
variable.TypeDefinitionId;
break;
case BaseObjectState obj:
nodeModel = new ObjectNodeModel(parent)
{
EventNotifier = obj.EventNotifier.ToNullable(EventNotifiers.None)
};
break;
case MethodState method:
nodeModel = new MethodNodeModel(parent)
{
UserExecutable = method.UserExecutable,
Executable = method.Executable,
MethodDeclarationId = method.MethodDeclarationId,
};
break;
default:
return(null);
}
break;
default:
return(null);
}
nodeModel.BrowseName = state.BrowseName;
nodeModel.Description = state.Description;
nodeModel.DisplayName = state.DisplayName;
nodeModel.Handle = state.Handle;
nodeModel.NodeId = state.NodeId;
nodeModel.SymbolicName = state.SymbolicName;
nodeModel.WriteMask = state.WriteMask.ToNullable(AttributeWriteMask.None);
nodeModel.UserWriteMask = state.UserWriteMask.ToNullable(AttributeWriteMask.None);
var children = new List <BaseInstanceState>();
state.GetChildren(context, children);
foreach (var child in children)
{
nodeModel.AddChild(child.ToNodeModel(context, nodeModel) as InstanceNodeModel);
}
var references = new List <IReference>();
state.GetReferences(context, references);
foreach (var reference in references)
{
nodeModel.AddReference(reference.ReferenceTypeId, reference.IsInverse,
reference.TargetId);
}
return(nodeModel);
}
/// <summary>
/// Create object node
/// </summary>
public ObjectNodeModel(BaseNodeModel parent = null) :
base(NodeClass.Object, parent)
{
}
/// <summary>
/// Create method node
/// </summary>
public MethodNodeModel(BaseNodeModel parent = null) :
base(NodeClass.Method, parent)
{
Executable = true;
UserExecutable = true;
}
/// <inheritdoc/>
public virtual void Decode(IDecoder decoder)
{
decoder.PushNamespace(Namespaces.OpcUa);
decoder.PushNamespace(Namespaces.OpcUaXsd);
Node = CreateModel(decoder.ReadString(kTypeFieldName));
Node.NodeId = decoder.ReadNodeId(nameof(Node.NodeId));
Node.SymbolicName = decoder.ReadString(nameof(Node.SymbolicName));
Node.BrowseName = decoder.ReadQualifiedName(nameof(Node.BrowseName));
Node.DisplayName = decoder.ReadLocalizedText(nameof(Node.DisplayName));
Node.Description = decoder.ReadLocalizedText(nameof(Node.Description));
Node.WriteMask = decoder.ReadEnumerated <AttributeWriteMask>(nameof(Node.WriteMask));
Node.UserWriteMask = decoder.ReadEnumerated <AttributeWriteMask>(nameof(Node.UserWriteMask));
switch (Node)
{
case InstanceNodeModel instanceState:
instanceState.ReferenceTypeId =
decoder.ReadNodeId(nameof(instanceState.ReferenceTypeId));
instanceState.TypeDefinitionId =
decoder.ReadNodeId(nameof(instanceState.TypeDefinitionId));
instanceState.ModellingRuleId =
decoder.ReadNodeId(nameof(instanceState.ModellingRuleId));
instanceState.NumericId =
decoder.ReadUInt32(nameof(instanceState.NumericId));
switch (instanceState)
{
case ObjectNodeModel objectState:
objectState.EventNotifier =
decoder.ReadByte(nameof(objectState.EventNotifier));
break;
case VariableNodeModel variableState:
variableState.Value =
decoder.ReadVariant(nameof(variableState.Value));
variableState.StatusCode =
decoder.ReadStatusCode(nameof(variableState.StatusCode));
variableState.DataType =
decoder.ReadNodeId(nameof(variableState.DataType));
variableState.ValueRank =
decoder.ReadInt32(nameof(variableState.ValueRank));
variableState.ArrayDimensions =
decoder.ReadUInt32Array(nameof(variableState.ArrayDimensions))?.ToArray();
variableState.AccessLevel =
decoder.ReadByte(nameof(variableState.AccessLevel));
variableState.AccessLevelEx =
decoder.ReadUInt32(nameof(variableState.AccessLevelEx));
variableState.UserAccessLevel =
decoder.ReadByte(nameof(variableState.UserAccessLevel));
variableState.MinimumSamplingInterval =
decoder.ReadDouble(nameof(variableState.MinimumSamplingInterval));
variableState.Historizing =
decoder.ReadBoolean(nameof(variableState.Historizing));
break;
case MethodNodeModel methodState:
methodState.Executable =
decoder.ReadBoolean(nameof(methodState.Executable));
methodState.UserExecutable =
decoder.ReadBoolean(nameof(methodState.UserExecutable));
break;
}
break;
case TypeNodeModel typeState:
typeState.IsAbstract = decoder.ReadBoolean(nameof(typeState.IsAbstract));
typeState.SuperTypeId = decoder.ReadNodeId(nameof(typeState.SuperTypeId));
switch (Node)
{
case VariableTypeNodeModel variableTypeState:
variableTypeState.Value =
decoder.ReadVariant(nameof(variableTypeState.Value));
variableTypeState.DataType =
decoder.ReadNodeId(nameof(variableTypeState.DataType));
variableTypeState.ValueRank =
decoder.ReadInt32(nameof(variableTypeState.ValueRank));
variableTypeState.ArrayDimensions =
decoder.ReadUInt32Array(nameof(variableTypeState.ArrayDimensions))?.ToArray();
break;
case ReferenceTypeNodeModel refTypeState:
refTypeState.Symmetric =
decoder.ReadBoolean(nameof(refTypeState.Symmetric));
refTypeState.InverseName =
decoder.ReadLocalizedText(nameof(refTypeState.InverseName));
break;
case DataTypeNodeModel dataTypeState:
var definitionType = GetDefinitionType(
decoder.ReadString(kDefinitionTypeFieldName));
dataTypeState.Definition = (DataTypeDefinition)decoder.ReadEncodeable(
nameof(dataTypeState.Definition), definitionType);
dataTypeState.Purpose = decoder.ReadEnumerated <Schema.DataTypePurpose>(
nameof(dataTypeState.Purpose));
break;
case ObjectTypeNodeModel objectTypeState:
break;
}
break;
case ViewNodeModel viewState:
viewState.EventNotifier = decoder.ReadByte(nameof(viewState.EventNotifier));
viewState.ContainsNoLoops = decoder.ReadBoolean(nameof(viewState.ContainsNoLoops));
break;
}
var ctx = decoder.Context.ToSystemContext();
var children = decoder.ReadEncodeableArray <EncodeableNodeModel>(kChildrenFieldName);
foreach (var child in children.Select(n => n.Node).OfType <InstanceNodeModel>())
{
Node.AddChild(child);
}
var references = decoder.ReadEncodeableArray <EncodeableReferenceModel>(kReferencesFieldName);
Node.AddReferences(references.Select(r => r.Reference).ToList());
decoder.PopNamespace();
decoder.PopNamespace();
}
/// <summary>
/// Create encodeable node state
/// </summary>
/// <param name="state"></param>
public EncodeableNodeModel(BaseNodeModel state)
{
Node = state;
}
/// <summary>
/// Create variable node
/// </summary>
/// <param name="parent"></param>
protected VariableNodeModel(BaseNodeModel parent = null) :
base(NodeClass.Variable, parent)
{
}
/// <summary>
/// Create property state.
/// </summary>
public PropertyNodeModel(BaseNodeModel parent = null) :
base(parent)
{
}
/// <summary>
/// Create data variable node
/// </summary>
public DataVariableNodeModel(BaseNodeModel parent = null) :
base(parent)
{
}