/// <summary>
/// Append new stream to the stream hierarchic.
/// </summary>
/// <param name="item">The item.</param>
private void AppendStream(MarbleBase item)
{
string fullName = item.Name;
#region Validation
if (string.IsNullOrEmpty(fullName))
{
return; // TODO: error log
}
#endregion // Validation
string[] path = fullName.Split(new [] { "." }, StringSplitOptions.RemoveEmptyEntries);
IVMDataStream parent = _hierarchic.FirstOrDefault(node => node.Name == path[0]);
var request = new CreateStreamVMRequest(item, parent, path.ToArray(), 1);
CreateStreamVMRecursive(request);
}
/// <summary>
/// Creates the stream VM recursively.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="parent">The parent.</param>
/// <param name="path">The path.</param>
/// <param name="level">The level.</param>
/// <returns></returns>
private void CreateStreamVMRecursive(CreateStreamVMRequest request)
{
IVMDataStream vmStream = null;
if (request.Parent != null)
{
vmStream = request.Parent.Children.FirstOrDefault(node => node.Name == request.FullName);
}
if (vmStream != null)
{
// TODO: add keywords to existing paths
if (request.IsLastLevel)
{
return;
}
}
else
{
ListCollectionView view = new ListCollectionView(_flatData);
string fullName = request.FullName;
view.Filter = obj => ((MarbleBase)obj).Name.StartsWith(fullName); // TBD: whether intermediate level should have an active ListCollectionView?
string[] keywords = request.Item.Keywords;
string name = request.Path[request.Level - 1];
vmStream = new VMDataStream(name, fullName, keywords, view);
if (request.Parent == null)
{
_hierarchic.Add(vmStream);
}
if (request.IsLastLevel)
{
return;
}
}
request.IncreamentLevel(vmStream);
CreateStreamVMRecursive(request);
}
