public static void ClearIfEmpty(this PropertyGraphModel model)
{
model.Vertices = model.Vertices?.Count > 0 ? model.Vertices : null;
model.Edges = model.Edges?.Count > 0 ? model.Edges : null;
if (model.Vertices != null)
{
foreach (var vertex in model.Vertices)
{
if (vertex.Props != null && vertex.Props.Count == 0)
{
vertex.Props = null;
}
}
}
if (model.Edges != null)
{
foreach (var edge in model.Edges)
{
if (edge.Props != null && edge.Props.Count == 0)
{
edge.Props = null;
}
}
}
}
public static PropertyGraphModel DeepCopy(this PropertyGraphModel model)
{
var result = new PropertyGraphModel();
if (model.Vertices != null)
{
result.Vertices = model.Vertices.Select(DeepCopy).ToList();
}
if (model.Edges != null)
{
result.Edges = model.Edges.Select(DeepCopy).ToList();
}
result.CreateLinks();
result.CreateIndex();
return(result);
}
public static void CreateLinks(this PropertyGraphModel model)
{
if (model.Vertices == null || model.Edges == null)
{
return;
}
foreach (var vertex in model.Vertices)
{
vertex.Edges = new List <PropertyEdgeModel>();
}
foreach (var edge in model.Edges)
{
var source = model.Vertices[edge.Source];
var target = model.Vertices[edge.Target];
edge.SourceVertex = source;
edge.TargetVertex = target;
source.Edges.Add(edge);
target.Edges.Add(edge);
}
}