Build Treeview based on layer.xml

Hi. Can someone please help me building the treeview based on layer.xml

The layer.xml custom filesystem, folder and files are as follow.

 
Code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE filesystem PUBLIC "-//NetBeans//DTD Filesystem 1.2//EN" "http://www.netbeans.org/dtds/filesystem-1_2.dtd">
<filesystem>
    <folder name="Explorer">
        <attr name="icon" stringvalue="no/demo/explorer.png"/>
        <folder name="System">
            <folder name="Users">
                <attr name="icon" stringvalue="no/demo/player.png"/>
                <file name="UserListAction.shadow">
                    <attr name="originalFile"
                          stringvalue="Actions/Edit/no-demo-UserListAction.instance"/>
                </file>
            </folder>
            
            <attr name="icon" stringvalue="no/demo/player.png"/>
            <file name="PlaylistAction.shadow">
                <attr name="originalFile"
                      stringvalue="Actions/Edit/no-demo-PlaylistAction.instance"/>
            </file>
        </folder>
        <folder name="Views">
            <folder name="SubView">
            <attr name="icon" stringvalue="no/demo/views.png"/>
            <file name="OutputAction.shadow">
                <attr name="originalFile"
                      stringvalue="Actions/Window/org-netbeans-core-io-ui-IOWindowAction.instance"/>
            </file>
            <file name="UsersAction.shadow">
                    <attr name="originalFile"
                          stringvalue="Actions/Edit/no-demo-UsersAction.instance"/>
            </file>
            </folder>
        </folder>
        <folder name="Favorites">
            <attr name="icon" stringvalue="no/demo/favorites.png"/>
            <file name="FavoritesAction.shadow">
                <attr name="originalFile"
                      stringvalue="Actions/Window/org-netbeans-modules-favorites-View.instance"/>
            </file>
        </folder>
    </folder>
</filesystem>





The source code for building the tree folders is as follow:


Code:

public class ExplorerFolderFactory extends ChildFactory<FileObject> {

   private FileObject folder = null;

   public ExplorerFolderFactory(FileObject folder) {
      this.folder = folder;
      
   }

   @Override
   protected boolean createKeys(List<FileObject> toPopulate) {
      System.out.println("createKeys:folder");
      toPopulate.addAll(Arrays.asList(folder.getChildren()));

      return true;
   }

   @Override
   protected Node[] createNodesForKey(FileObject key) {
      List<Node> children = new ArrayList<Node>();
      System.out.println("createNodeForKey:folder");
      FileObject folderFO = (FileObject) key.getLookup().lookup(FileObject.class);
      DataFolder folder = null;
      if(folderFO.isFolder()){
          folder = DataFolder.findFolder(folderFO); 
      }
      
      FileObject daoFO = (FileObject) key.getLookup().lookup(FileObject.class);
      DataObject dao = null;
      
       try {
           dao = DataObject.find(daoFO);
       } catch (DataObjectNotFoundException ex) {
           Exceptions.printStackTrace(ex);
       }
      
       if(folder != null){
           String name = folder.getName();
                
            children.add(new ExplorerFolderNode(key, Children.create(new ExplorerFolderFactory(key), false)));
            return children.toArray(new Node[0]);
       }
              
       if (dao instanceof DataObject) {
           //new ExplorerChildFactory(key);
           ExplorerLeafNode leaf = new ExplorerLeafNode(dao.getNodeDelegate());
           children.add(leaf);
       }
       return children.toArray(new Node[0]);
       
   }
}




What I tried to, is to check if the FileObject isFolder, if this is the case run the ExplorerFolderNode again to go to subfolder.
When I comes to the file I want to get an handler to execute the attribute "Actions/Window/org-netbeans-modules-favorites-View.instance" as an example.

The ExplorerLeafNode Object is as follow:

 
Code:

public class ExplorerLeafNode extends AbstractNode {
   
   private Action action = null;

   public ExplorerLeafNode(Action action) {
      super(Children.LEAF);
      this.action = action;
      setDisplayName(Actions.cutAmpersand((String)action.getValue(Action.NAME)));
   }
   
   @Override
   public Action getPreferredAction() {
      return action;
   }
   
   @Override
   public Image getIcon(int type) {
      ImageIcon img = (ImageIcon) action.getValue(Action.SMALL_ICON);
      
      if(img != null) {
         return img.getImage();
      } else {
         return null;
      }
   }
}