//  /FL!..$ota_flow_manager_pkg.pks/PS!..$ota_flow_manager_pkg/Va!..$pc_bs_15m_dflt [Value]
  // 1|INTEGER
  public void addContextPath(String ctxPath, String value) {
    String[] path = ctxPath.split("/");

    // validate root context
    if (!("/" + path[1]).startsWith(ContextPath.FILE_CTX_PRX) || ctxPath.indexOf(' ') != -1) {
      throw new ValidationException("Broken Context Path occurred: FILE CTX Path must be first!");
    } else {
      switch (path.length) {
        case 0:
        case 1:
          throw new ValidationException("Broken Context Path occurred");
        case 2: // load file attributes
          String fileName = path[1].substring(6);
          FileEntitiesHolder fileHolder = files.get(fileName);
          if (fileHolder == null) {
            fileHolder = new FileEntitiesHolder(fileName);
            files.put(fileName, fileHolder);
          }
          value = (value == null || value.length() == 0) ? "" : value;
          fileHolder.value = value;
          return;
        default:
          break;
      }
    }

    String encodedName = "/" + path[2];
    String filePath = path[1].substring(6);
    String name = path[2].substring(6); // , path[2].length());
    // try to find existing top node first
    List<TreeNode> addTo = new ArrayList<TreeNode>();
    root.findChildrenBySuffix(name, addTo);
    for (TreeNode node : addTo) {
      final TreeNodeTop top = (TreeNodeTop) node;
      if (encodedName.equals(top.encodedName) && filePath.equals(top.owner.filePath)) {
        // top node found
        addCtxValue(top, path, value);
        return;
      }
    }

    // top node not found, so create one
    int type = ContextPathUtil.prefix2type(encodedName.substring(0, 4));
    TreeNode top = addTopNode(root, type, encodedName, filePath);
    addCtxValue(top, path, value);

    // log adding entry
    println("[Path] " + ctxPath + " [Value] " + value);
  }
  public String getContextPathValue(String ctxPath) {
    // todo -- replace split("/") with Pattern.split("/")
    String[] path = ctxPath.split("/");

    int startWith = ("/" + path[1]).startsWith(ContextPath.FILE_CTX_PRX) ? 2 : 1;
    if (startWith == path.length) {
      FileEntitiesHolder hld = files.get(path[1].substring(6));
      if (hld != null) {
        return hld.value; // Long.toString(hld.timeStamp); //
      }

      return null;
    }

    // expected: startWith == 2
    String filePath = path[1].substring(6);

    // find top nodes the specified name
    // "/" + path[2]
    String encodedName = "/" + path[2];
    String name = path[2].substring(6);
    List<TreeNode> addTo = new ArrayList<TreeNode>();
    root.findChildrenBySuffix(name, addTo);

    for (TreeNode node : addTo) {
      // find among top nodes the one which belongs to the correct file
      final TreeNodeTop top = (TreeNodeTop) node;
      if (encodedName.equals(top.encodedName) && filePath.equals(top.owner.filePath)) {
        // the found top node is considered as a root of target hierarhy
        TreeNode cycled = node;
        for (int i = startWith + 1; i < path.length; i++) {
          encodedName = "/" + path[i];
          cycled = cycled.findChildByEncodedName(encodedName);
          if (cycled == null) {
            return null;
          }
        }

        return cycled.getValue();
      } else {
        // todo -- investige the case
        int hh = 0;
      }
    }

    return null;
  }
 public TreeNode[] findNodeInRootContext(String name) {
   return root.findChildrenBySuffix(name);
 }