/// <summary>
/// Recursively indexes the node and its children.
/// </summary>
protected virtual void RemovePredefinedNode(
ISystemContext context,
NodeState node,
List<LocalReference> referencesToRemove)
{
m_predefinedNodes.Remove(node.NodeId);
node.UpdateChangeMasks(NodeStateChangeMasks.Deleted);
node.ClearChangeMasks(context, false);
OnNodeRemoved(node);
// remove from the parent.
BaseInstanceState instance = node as BaseInstanceState;
if (instance != null && instance.Parent != null)
{
instance.Parent.RemoveChild(instance);
}
// remove children.
List<BaseInstanceState> children = new List<BaseInstanceState>();
node.GetChildren(context, children);
for (int ii = 0; ii < children.Count; ii++)
{
node.RemoveChild(children[ii]);
}
for (int ii = 0; ii < children.Count; ii++)
{
RemovePredefinedNode(context, children[ii], referencesToRemove);
}
// remove from type table.
BaseTypeState type = node as BaseTypeState;
if (type != null)
{
m_server.TypeTree.Remove(type.NodeId);
}
// remove inverse references.
List<IReference> references = new List<IReference>();
node.GetReferences(context, references);
for (int ii = 0; ii < references.Count; ii++)
{
IReference reference = references[ii];
if (reference.TargetId.IsAbsolute)
{
continue;
}
LocalReference referenceToRemove = new LocalReference(
(NodeId)reference.TargetId,
reference.ReferenceTypeId,
reference.IsInverse,
node.NodeId);
referencesToRemove.Add(referenceToRemove);
}
}
/// <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);
}
