public static INode MatchRequest(this IContainer cnt, INodeRequest request, INodeTypeFactory typeFactory)
{
INode ret = null;
switch (request.RequestType)
{
case RequestTypeEnum.Move:
return(request.Move(cnt));
case RequestTypeEnum.Get:
return(cnt.GetById(request.Data));
case RequestTypeEnum.Add:
return(request.GetNewNode(cnt, typeFactory));
case RequestTypeEnum.Update:
return(request.GetUpdatedNode(cnt));
case RequestTypeEnum.Remove:
return(request.RemoveNode(cnt));
case RequestTypeEnum.Link:
var rel = request.GetRelation(cnt);
if (rel.Item1 != null && rel.Item2 != null)
{
cnt.AddRelation(rel.Item1, rel.Item2);
ret = rel.Item1;
}
break;
}
return(ret);
}
public static INode GetUpdatedNode(this INodeRequest request, IContainer container)
{
var nodeId = GetId(request.JsonData);
if (!string.IsNullOrEmpty(nodeId))
{
return(container.GetById(nodeId).Apply(request.JsonData));
}
return(null);
}
public static INode RemoveNode(this INodeRequest request, IContainer container)
{
var nodeId = GetId(request.JsonData);
if (!string.IsNullOrEmpty(nodeId))
{
var nodeToRemove = container.GetById(nodeId);
var parent = container.GetById(nodeToRemove.ParentId);
container.RemoveNode(nodeToRemove);
return(parent);
}
return(null);
}
public static (INode, INode) GetRelation(this INodeRequest request, IContainer container)
{
var fromId = request.QueryString.GetString("from");
var toId = request.QueryString.GetString("to");
INode from = container.GetById(fromId);
INode to = container.GetById(toId);
if (from != null && to != null)
{
return(from, to);
}
return(null, null);
}
public static INode GetNewNode(this INodeRequest request, IContainer container, INodeTypeFactory factory)
{
if (factory == null)
{
throw new ArgumentException("Node type factory is needed to create new nodes", nameof(factory));
}
var parent = request.GetParent(container);
var type = request.QueryString.GetString("type", request.JsonData.GetString("type"));
var newNode = factory.GetNew(type);
if (request.JsonData != null)
{
newNode.Apply(request.JsonData);
}
parent.Add(newNode);
return(newNode);
}
public static INode Move(this INodeRequest request, IContainer container)
{
var moveData = new MoveData();
JsonSerializer.CreateDefault().Populate(request.JsonData.CreateReader(), moveData);
if (!string.IsNullOrEmpty(moveData.ParentId) && !string.IsNullOrEmpty(moveData.OldParentId))
{
if (moveData.ParentId.Equals(moveData.OldParentId))
{
return(container.GetById(moveData.OldParentId).SetNodePosition(container.GetById(moveData.Id), moveData.NewIndex));
}
else
{
return(container.GetById(moveData.OldParentId).ChangeParent(container.GetById(moveData.Id), container.GetById(moveData.ParentId), moveData.NewIndex));
}
}
return(null);
}
public void FromRequest(INodeRequest request)
{
FromQueryString(request.QueryString);
}
public static INode GetParent(this INodeRequest request, IContainer container)
{
var parentId = request.QueryString.GetString("parentId", request.JsonData.GetString("parentId"));
return(container.GetById(parentId) ?? container.RootNode);
}