/// <summary>
/// Finds the child with the specified browse name.
/// </summary>
/// <param name="context">The context for the system being accessed.</param>
/// <param name="browseName">The browse name of the children to add.</param>
/// <param name="createOrReplace">if set to <c>true</c> and the child could exist then the child is created.</param>
/// <param name="replacement">The replacement to use if createOrReplace is true.</param>
/// <returns>The child.</returns>
protected virtual BaseInstanceState FindChild(ISystemContext context, QualifiedName browseName, bool createOrReplace, BaseInstanceState replacement)
{
if (QualifiedName.IsNull(browseName))
{
return(null);
}
for (int ii = 0; ii < m_children.Count; ii++)
{
BaseInstanceState child = m_children[ii];
if (browseName == child.BrowseName)
{
if (createOrReplace && replacement != null)
{
m_children[ii] = child = replacement;
}
return(child);
}
}
if (createOrReplace)
{
if (replacement != null)
{
AddChild(replacement);
}
}
return(null);
}
/// <summary>
/// Initializes a new instance of the <see cref="SemanticDataSetSource"/> class.
/// </summary>
/// <param name="parent">The parent collecting all variables to be captured by this instance.</param>
/// <param name="rootBrowseName">The name of the semantic data set source.</param>
public SemanticDataSetSource(BaseInstanceState parent)
{
SemanticDataSetRootBrowseName = parent.BrowseName.ToString();
List <BaseInstanceState> _myComponents = new List <BaseInstanceState>();
parent.GetChildren(_myComponents);
for (int ii = 0; ii < _myComponents.Count; ii++)
{
List <BaseInstanceState> _hasComponentPath = new List <BaseInstanceState>();
_myComponents[ii].RegisterVariable(_hasComponentPath, (x, y) => { if (x is IVariable)
{
m_Variables.Add(string.Join(m_JoiningChar, y), (IVariable)x);
}
});
}
}
/// <summary>
/// Finds the child with the specified browse path.
/// </summary>
/// <param name="context">The context to use.</param>
/// <param name="browsePath">The browse path.</param>
/// <param name="index">The current position in the browse path.</param>
/// <returns>The target if found. Null otherwise.</returns>
public virtual BaseInstanceState FindChild(ISystemContext context, IList <QualifiedName> browsePath, int index)
{
if (index < 0 || index >= Int32.MaxValue)
{
throw new ArgumentOutOfRangeException("index");
}
BaseInstanceState instance = FindChild(context, browsePath[index], false, null);
if (instance != null)
{
if (browsePath.Count == index + 1)
{
return(instance);
}
return(instance.FindChild(context, browsePath, index + 1));
}
return(null);
}
/// <summary>
/// Adds a child to the node.
/// </summary>
internal void AddChild(BaseInstanceState child)
{
m_children.Add(child);
ChangeMasks |= NodeStateChangeMasks.Children;
}
