/// <summary>
/// Creates a new instance of a FilterDeclarationField.
/// </summary>
public FilterDeclarationField(FilterDeclarationField field)
{
Selected = field.Selected;
DisplayInList = field.DisplayInList;
FilterEnabled = field.FilterEnabled;
FilterOperator = field.FilterOperator;
FilterValue = field.FilterValue;
InstanceDeclaration = field.InstanceDeclaration;
}
/// <summary>
/// Creates a new instance of a FilterDeclaration.
/// </summary>
public FilterDeclaration(TypeDeclaration eventType, FilterDeclaration template)
{
EventTypeId = eventType.NodeId;
Fields = new List <FilterDeclarationField>( );
foreach (InstanceDeclaration instanceDeclaration in eventType.Declarations)
{
if (instanceDeclaration.NodeClass == NodeClass.Method)
{
continue;
}
if (NodeId.IsNull(instanceDeclaration.ModellingRule))
{
continue;
}
FilterDeclarationField element = new FilterDeclarationField(instanceDeclaration);
Fields.Add(element);
// set reasonable defaults.
if (template == null)
{
if (instanceDeclaration.RootTypeId == Opc.Ua.ObjectTypeIds.BaseEventType && instanceDeclaration.BrowseName != Opc.Ua.BrowseNames.EventId)
{
element.DisplayInList = true;
}
}
// preserve filter settings.
else
{
foreach (FilterDeclarationField field in template.Fields)
{
if (field.InstanceDeclaration.BrowsePathDisplayText == element.InstanceDeclaration.BrowsePathDisplayText)
{
element.DisplayInList = field.DisplayInList;
element.FilterEnabled = field.FilterEnabled;
element.FilterOperator = field.FilterOperator;
element.FilterValue = field.FilterValue;
break;
}
}
}
}
}
/// <summary>
/// Adds a simple field to the declaration.
/// </summary>
public void AddSimpleField(QualifiedName[] browseNames, NodeClass nodeClass, BuiltInType dataType, int valueRank, bool displayInList)
{
FilterDeclarationField field = new FilterDeclarationField( );
field.DisplayInList = displayInList;
field.InstanceDeclaration = new InstanceDeclaration( );
field.InstanceDeclaration.NodeClass = nodeClass;
if (browseNames != null)
{
field.InstanceDeclaration.BrowseName = browseNames[browseNames.Length - 1];
field.InstanceDeclaration.BrowsePath = new QualifiedNameCollection( );
StringBuilder path = new StringBuilder( );
for (int ii = 0; ii < browseNames.Length; ii++)
{
if (path.Length > 0)
{
path.Append('/');
}
path.Append(browseNames[ii]);
field.InstanceDeclaration.BrowsePath.Add(browseNames[ii]);
}
field.InstanceDeclaration.BrowsePathDisplayText = path.ToString( );
}
field.InstanceDeclaration.BuiltInType = dataType;
field.InstanceDeclaration.DataType = (uint)dataType;
field.InstanceDeclaration.ValueRank = valueRank;
field.InstanceDeclaration.DataTypeDisplayText = dataType.ToString( );
if (valueRank >= 0)
{
field.InstanceDeclaration.DataTypeDisplayText += "[]";
}
field.InstanceDeclaration.DisplayName = field.InstanceDeclaration.BrowseName.Name;
field.InstanceDeclaration.DisplayPath = field.InstanceDeclaration.BrowsePathDisplayText;
field.InstanceDeclaration.RootTypeId = ObjectTypeIds.BaseEventType;
Fields.Add(field);
}