/// <summary>
/// Updates the list control.
/// </summary>
private void UpdateList(Session session, Argument[] arguments, string browseName)
{
for (int ii = 0; ii < arguments.Length; ii++)
{
Argument argument = arguments[ii];
Variant defaultValue = new Variant(TypeInfo.GetDefaultValue(argument.DataType, argument.ValueRank));
ListViewItem item = new ListViewItem(arguments[ii].Name);
if (browseName == BrowseNames.InputArguments)
{
item.SubItems.Add("IN");
m_firstOutputArgument++;
}
else
{
item.SubItems.Add("OUT");
}
string dataType = session.NodeCache.GetDisplayText(arguments[ii].DataType);
if (arguments[ii].ValueRank >= 0)
{
dataType += "[]";
}
item.SubItems.Add(defaultValue.ToString());
item.SubItems.Add(dataType);
item.SubItems.Add(Utils.Format("{0}", arguments[ii].Description));
item.Tag = defaultValue;
ArgumentsLV.Items.Add(item);
}
}
/// <summary>
/// Returns the default value for the output argument.
/// </summary>
/// <param name="context">The context to use.</param>
/// <param name="outputArgument">The output argument description.</param>
/// <returns>The default value.</returns>
protected object GetArgumentDefaultValue(
ISystemContext context,
Argument outputArgument)
{
return TypeInfo.GetDefaultValue(outputArgument.DataType, outputArgument.ValueRank, context.TypeTable);
}
/// <summary>
/// Does any initialization required before the address space can be used.
/// </summary>
/// <remarks>
/// The externalReferences is an out parameter that allows the node manager to link to nodes
/// in other node managers. For example, the 'Objects' node is managed by the CoreNodeManager and
/// should have a reference to the root folder node(s) exposed by this node manager.
/// </remarks>
public override void CreateAddressSpace(IDictionary<NodeId, IList<IReference>> externalReferences)
{
lock (Lock)
{
// create a object to represent the process being controlled.
BaseObjectState process = new BaseObjectState(null);
process.NodeId = new NodeId(1, NamespaceIndex);
process.BrowseName = new QualifiedName("My Process", NamespaceIndex);
process.DisplayName = process.BrowseName.Name;
process.TypeDefinitionId = ObjectTypeIds.BaseObjectType;
// ensure the process object can be found via the server object.
IList<IReference> references = null;
if (!externalReferences.TryGetValue(ObjectIds.ObjectsFolder, out references))
{
externalReferences[ObjectIds.ObjectsFolder] = references = new List<IReference>();
}
process.AddReference(ReferenceTypeIds.Organizes, true, ObjectIds.ObjectsFolder);
references.Add(new NodeStateReference(ReferenceTypeIds.Organizes, false, process.NodeId));
// a property to report the process state.
PropertyState<uint> state = m_stateNode = new PropertyState<uint>(process);
state.NodeId = new NodeId(2, NamespaceIndex);
state.BrowseName = new QualifiedName("State", NamespaceIndex);
state.DisplayName = state.BrowseName.Name;
state.TypeDefinitionId = VariableTypeIds.PropertyType;
state.ReferenceTypeId = ReferenceTypeIds.HasProperty;
state.DataType = DataTypeIds.UInt32;
state.ValueRank = ValueRanks.Scalar;
process.AddChild(state);
// a method to start the process.
MethodState start = new MethodState(process);
start.NodeId = new NodeId(3, NamespaceIndex);
start.BrowseName = new QualifiedName("Start", NamespaceIndex);
start.DisplayName = start.BrowseName.Name;
start.ReferenceTypeId = ReferenceTypeIds.HasComponent;
start.UserExecutable = true;
start.Executable = true;
// add input arguments.
start.InputArguments = new PropertyState<Argument[]>(start);
start.InputArguments.NodeId = new NodeId(4, NamespaceIndex);
start.InputArguments.BrowseName = BrowseNames.InputArguments;
start.InputArguments.DisplayName = start.InputArguments.BrowseName.Name;
start.InputArguments.TypeDefinitionId = VariableTypeIds.PropertyType;
start.InputArguments.ReferenceTypeId = ReferenceTypeIds.HasProperty;
start.InputArguments.DataType = DataTypeIds.Argument;
start.InputArguments.ValueRank = ValueRanks.OneDimension;
Argument[] args = new Argument[2];
args[0] = new Argument();
args[0].Name = "Initial State";
args[0].Description = "The initialize state for the process.";
args[0].DataType = DataTypeIds.UInt32;
args[0].ValueRank = ValueRanks.Scalar;
args[1] = new Argument();
args[1].Name = "Final State";
args[1].Description = "The final state for the process.";
args[1].DataType = DataTypeIds.UInt32;
args[1].ValueRank = ValueRanks.Scalar;
start.InputArguments.Value = args;
// add output arguments.
start.OutputArguments = new PropertyState<Argument[]>(start);
start.OutputArguments.NodeId = new NodeId(5, NamespaceIndex);
start.OutputArguments.BrowseName = BrowseNames.OutputArguments;
start.OutputArguments.DisplayName = start.OutputArguments.BrowseName.Name;
start.OutputArguments.TypeDefinitionId = VariableTypeIds.PropertyType;
start.OutputArguments.ReferenceTypeId = ReferenceTypeIds.HasProperty;
start.OutputArguments.DataType = DataTypeIds.Argument;
start.OutputArguments.ValueRank = ValueRanks.OneDimension;
args = new Argument[2];
args[0] = new Argument();
args[0].Name = "Revised Initial State";
args[0].Description = "The revised initialize state for the process.";
args[0].DataType = DataTypeIds.UInt32;
args[0].ValueRank = ValueRanks.Scalar;
args[1] = new Argument();
args[1].Name = "Revised Final State";
args[1].Description = "The revised final state for the process.";
args[1].DataType = DataTypeIds.UInt32;
args[1].ValueRank = ValueRanks.Scalar;
start.OutputArguments.Value = args;
process.AddChild(start);
// save in dictionary.
AddPredefinedNode(SystemContext, process);
// set up method handlers.
start.OnCallMethod = new GenericMethodCalledEventHandler(OnStart);
}
}
/// <summary>
/// Updates the row with an argument and its value.
/// </summary>
private void UpdateRow(DataRow row, Argument argument, Variant value, bool isOutputArgument)
{
string dataType = m_session.NodeCache.GetDisplayText(argument.DataType);
if (argument.ValueRank >= 0)
{
dataType += "[]";
}
row[0] = argument;
row[1] = ImageList.Images[ClientUtils.GetImageIndex(isOutputArgument, value.Value)];
row[2] = argument.Name;
row[3] = dataType;
row[4] = value;
row[5] = String.Empty;
}