private FlagEnum <TreeNodeDifference> GetDifference(PrtgNode first, PrtgNode second)
{
var differences = new List <TreeNodeDifference>();
if (first == null && second == null)
{
return(TreeNodeDifference.None);
}
if (first != null && second == null)
{
return(TreeNodeDifference.Removed);
}
if (first == null && second != null)
{
return(TreeNodeDifference.Added);
}
if (first.GetType() != second.GetType())
{
differences.Add(TreeNodeDifference.Type);
}
//Collections don't have values, so there's no point checking value properties for them
if (first.Value != null && second.Value != null)
{
Debug.Assert(first.Value.Id == second.Value.Id, "If two nodes had different IDs one of them should have been replaced in the comparison visitor with null.");
if (first.Value.ParentId != second.Value.ParentId)
{
differences.Add(TreeNodeDifference.ParentId);
}
if (first.Value.Name != second.Value.Name)
{
differences.Add(TreeNodeDifference.Name);
}
}
if (first.Children.Count > 0 && second.Children.Count == 0 || second.Children.Count > 0 && first.Children.Count == 0)
{
differences.Add(TreeNodeDifference.HasChildren);
}
if (first.Children.Count != second.Children.Count)
{
differences.Add(TreeNodeDifference.NumberOfChildren);
}
return(new FlagEnum <TreeNodeDifference>(differences.ToArray()));
}
private FlagEnum <TreeNodeDifference> GetDifference(PrtgNode first, PrtgNode second, TreeNodeDifference[] interestedDifferences)
{
var differences = new List <TreeNodeDifference>();
if (first == null && second == null)
{
return(TreeNodeDifference.None);
}
if (first != null && second == null)
{
differences.Add(TreeNodeDifference.Removed);
}
if (first == null && second != null)
{
differences.Add(TreeNodeDifference.Added);
}
if (first != null && second != null)
{
if (first.GetType() != second.GetType())
{
differences.Add(TreeNodeDifference.Type);
}
//Collections don't have values, so there's no point checking value properties for them
if (first.Value != null && second.Value != null)
{
Debug.Assert(first.Value.Id == second.Value.Id, "If two nodes had different IDs one of them should have been replaced in the comparison visitor with null.");
if (first.Value.ParentId != second.Value.ParentId)
{
differences.Add(TreeNodeDifference.ParentId);
}
if (first.Value.Name != second.Value.Name)
{
differences.Add(TreeNodeDifference.Name);
}
if (first.Value is ISensorOrDeviceOrGroupOrProbe && second.Value is ISensorOrDeviceOrGroupOrProbe)
{
if (((ISensorOrDeviceOrGroupOrProbe)first.Value).Position !=
((ISensorOrDeviceOrGroupOrProbe)second.Value).Position)
{
differences.Add(TreeNodeDifference.Position);
}
}
if (first.Value is PropertyValuePair && second.Value is PropertyValuePair)
{
if (!string.Equals(((PropertyValuePair)first.Value).Value?.ToString(), ((PropertyValuePair)second.Value).Value?.ToString()))
{
differences.Add(TreeNodeDifference.Value);
}
}
}
if ((first.Children.Count > 0 && second.Children.Count == 0 || second.Children.Count > 0 && first.Children.Count == 0))
{
differences.Add(TreeNodeDifference.HasChildren);
}
if (first.Children.Count != second.Children.Count)
{
differences.Add(TreeNodeDifference.NumberOfChildren);
}
}
Debug.Assert(
(differences.Contains(TreeNodeDifference.Added) ||
differences.Contains(TreeNodeDifference.Removed)) &&
differences.Count > 1 ?
false :
true,
"Cannot contain more than one difference when the difference is Added or Removed"
);
if (interestedDifferences != null && interestedDifferences.Length > 0)
{
var interestedFlags = new FlagEnum <TreeNodeDifference>(interestedDifferences);
if (interestedFlags != TreeNodeDifference.None)
{
var proposedDifferences = new FlagEnum <TreeNodeDifference>(differences.ToArray());
var result = proposedDifferences & interestedFlags;
return(result);
}
}
return(new FlagEnum <TreeNodeDifference>(differences.ToArray()));
}