/// <summary>
/// Attempts to add a copy of a DependancyGraphNode to the internal dictionary.
/// </summary>
/// <param name="objDependancyGraphNode"></param>
/// <returns></returns>
public DependancyGraphNode <T> TryAddCopyToDictionary(DependancyGraphNode <T> objDependancyGraphNode)
{
T objLoopKey = objDependancyGraphNode.MyObject;
if (!NodeDictionary.TryGetValue(objLoopKey, out DependancyGraphNode <T> objExistingValue))
{
objExistingValue = new DependancyGraphNode <T>(objLoopKey, this);
// This is the first time the DependancyGraphNode object was attempted to be added to the dictionary, so don't do anything extra
_dicNodeDictionary.Add(objLoopKey, objExistingValue);
}
// Attempt to add all descendants of the current DependancyGraphNode to the SearchDictionary
foreach (DependancyGraphNodeWithCondition <T> objDownStreamNode in objDependancyGraphNode.DownStreamNodes)
{
if (!NodeDictionary.TryGetValue(objDownStreamNode.Node.MyObject, out DependancyGraphNode <T> objLoopValue) || !objLoopValue.Initializing)
{
bool blnTempLoopValueInitializing = objLoopValue?.Initializing == false;
if (blnTempLoopValueInitializing)
{
objLoopValue.Initializing = true;
}
DependancyGraphNode <T> objDownStreamNodeCopy = TryAddCopyToDictionary(objDownStreamNode.Node);
objExistingValue.DownStreamNodes.Add(new DependancyGraphNodeWithCondition <T>(objDownStreamNodeCopy, objDownStreamNode.DependancyCondition));
objDownStreamNodeCopy.UpStreamNodes.Add(new DependancyGraphNodeWithCondition <T>(objExistingValue, objDownStreamNode.DependancyCondition));
if (blnTempLoopValueInitializing)
{
objLoopValue.Initializing = false;
}
}
}
// Attempt to add all dependants of the current DependancyGraphNode to the SearchDictionary
foreach (DependancyGraphNodeWithCondition <T> objUpStreamNode in objDependancyGraphNode.UpStreamNodes)
{
if (!NodeDictionary.TryGetValue(objUpStreamNode.Node.MyObject, out DependancyGraphNode <T> objLoopValue) || !objLoopValue.Initializing)
{
bool blnTempLoopValueInitializing = objLoopValue?.Initializing == false;
if (blnTempLoopValueInitializing)
{
objLoopValue.Initializing = true;
}
DependancyGraphNode <T> objUpStreamNodeCopy = TryAddCopyToDictionary(objUpStreamNode.Node);
objExistingValue.UpStreamNodes.Add(new DependancyGraphNodeWithCondition <T>(objUpStreamNodeCopy, objUpStreamNode.DependancyCondition));
objUpStreamNodeCopy.DownStreamNodes.Add(new DependancyGraphNodeWithCondition <T>(objExistingValue, objUpStreamNode.DependancyCondition));
if (blnTempLoopValueInitializing)
{
objLoopValue.Initializing = false;
}
}
}
objExistingValue.Initializing = false;
return(objExistingValue);
}
public DependancyGraphNodeWithCondition(DependancyGraphNode <T> objNode, Func <bool> funcDependancyCondition)
{
Node = objNode;
DependancyCondition = funcDependancyCondition;
}