public static ArrayList<ContentTreeItem> addTreeItemsByParentDocFolders(
      ArrayList<CContent> calendars, ContentTree tree, DataSourceBase dataSource) {

    ArrayList<ContentTreeItem> result = new ArrayList<ContentTreeItem>();
    for (int s = 0; s < calendars.size(); s++) {
      CContent album = calendars.get(s);

      ContentTreeItem cItem = new ContentTreeItem();
      cItem.name = album.getTitle();
      cItem.contentType =
          "" + ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GoogleDocumentFolder);
      cItem.dataSourceUID = dataSource.uid;
      String uuid = UUID.randomUUID().toString();
      cItem.id = uuid;
      cItem.uid = album.getRefId();
      cItem.setUidStr(album.refIdStr);
      result.add(cItem);
      tree.items.add(cItem);
      cItem.type = "leaf";

      Reference ref = new Reference();
      ref._reference = "" + album.getRefIdStr();
      // ref._reference="" + cItem.id;
    }

    return result;
  }
  public static ArrayList<ContentTreeItem> addDocFolders(
      ApplicationManager appManager,
      Application app,
      DataSourceBase dataSource,
      ContentTreeItem dataSourceItem,
      ContentTree destinationTree,
      long flags) {
    if (dataSource == null) {
      return null;
    }
    ContentTree tree = null;
    try {
      tree = GoogleTreeFactory.createDocFolderTree(appManager, app, dataSource.uid, flags);
    } catch (ParserConfigurationException e) {
      e.printStackTrace();
    } catch (SAXException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    } catch (ParseException e) {
      e.printStackTrace();
    }

    if (tree == null) {
      return null;
    }

    /// add it to items :
    ContentTreeItem rootItem = new ContentTreeItem();
    rootItem.name = "Document Folders";
    String uuid = UUID.randomUUID().toString();
    rootItem.id = uuid;
    // rootItem.id = "55e969d6-c588-4268-a8b7-45240999d1cc";
    rootItem.children = new ArrayList<Reference>();
    destinationTree.items.add(rootItem);
    rootItem.type = "leaf";
    rootItem.contentType =
        "" + ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.Unknown);

    Reference articleRef = new Reference();
    articleRef._reference = "" + rootItem.id;
    dataSourceItem.addChild(articleRef);

    for (int i = 0; i < tree.items.size(); i++) {
      ContentTreeItem item = tree.items.get(i);
      if (item.contentType != null
          && item.contentType.equals(
              ""
                  + ECMContentSourceTypeTools.TypeToInteger(
                      ECMContentSourceType.GoogleDocumentFolder))) {
        Reference ref = new Reference();
        ref._reference = "" + item.id;
        rootItem.addChild(ref);
        item.type = "leaf";
        item.contentType =
            "" + ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GoogleDocumentFolder);
      }
    }
    return tree.items;
  }
  public static ContentTree createDataSourceTree(
      ApplicationManager appManager, Application app, long flags)
      throws ParserConfigurationException, SAXException, IOException, ParseException {
    ContentTree tree = new ContentTree();
    tree.id = "1";
    ArrayList<ContentTreeItem> result = new ArrayList<ContentTreeItem>();
    tree.setItems(result);

    ArrayList<DataSourceBase> datasources = app.getDataSources();

    ContentTreeItem rootItem = new ContentTreeItem();
    rootItem.name = "Data Sources";
    rootItem.label = "Data Sources";
    rootItem.id = "9898989";
    rootItem.children = new ArrayList<Reference>();
    // result.add(rootItem);
    tree.items.add(rootItem);
    rootItem.type = "top";
    rootItem.contentType =
        "" + ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.Unknown);

    for (int i = 0; i < datasources.size(); i++) {
      DataSourceBase ds = datasources.get(i);
      String dsType = ds.getType();
      Boolean isValid =
          dsType.equals("Youtube")
              || dsType.equals("Picassa")
              || dsType.equals("Calendar")
              || dsType.equals("Documents");
      if (!isValid) continue;

      ContentTreeItem item = new ContentTreeItem();
      item.name = GoogleTreeFactory.getDataSourceLabel(ds);
      item.id = "" + ds.getUid();
      item.dataSourceUID = ds.uid;
      item.contentType =
          "" + ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.DataSourceItem);
      /*
      item.children = new ArrayList<Reference>();
      Reference ref0 = new Reference();
      ref0._reference="" + "asdasd";
      item.addChild(ref0);
      */
      Reference ref = new Reference();
      ref._reference = "" + item.id;
      rootItem.addChild(ref);
      result.add(item);
      item.type = ds.getType();

      if (dsType.equals("Picassa")
          && BitUtils.hasFlag(
              flags,
              ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GooglePicassaAlbum))) {
        ArrayList<ContentTreeItem> albumItems =
            GoogleTreeFactory.addAlbums(appManager, app, ds, item, tree, flags);
        if (albumItems != null) {
          tree.items.addAll(albumItems);
        }
      }

      if (dsType.equals("Calendar")
          && BitUtils.hasFlag(
              flags,
              ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GoogleCalendar))) {
        ArrayList<ContentTreeItem> albumItems =
            GoogleTreeFactory.addCalendars(appManager, app, ds, item, tree, flags);
        if (albumItems != null) {
          tree.items.addAll(albumItems);
        }
      }

      Boolean docs =
          BitUtils.hasFlag(
              flags,
              ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GoogleDocumentFolder));
      if (dsType.equals("Documents")
          && BitUtils.hasFlag(
              flags,
              ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GoogleDocumentFolder))) {
        ArrayList<ContentTreeItem> albumItems =
            GoogleTreeFactory.addDocFolders(appManager, app, ds, item, tree, flags);
        if (albumItems != null) {
          tree.items.addAll(albumItems);
        }
      }
    }
    // tree.setItems(result);

    return tree;
  }
  public static ArrayList<ContentTreeItem> addTreeItemsByParent(
      CList albums, ArrayList<CListItem> photos, ContentTree tree, DataSourceBase dataSource) {
    ArrayList<ContentTreeItem> result = new ArrayList<ContentTreeItem>();

    for (int s = 0; s < albums.getItems().size(); s++) {
      CListItem album = albums.getItems().get(s);

      ArrayList<CListItem> albumEntries = CListItemTools.getByGroupId(photos, album.getRef());
      if (albumEntries != null && albumEntries.size() == 0) {
        continue;
      }

      ContentTreeItem cItem = new ContentTreeItem();
      cItem.name = album.getTitle();
      cItem.contentType =
          "" + ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GooglePicassaAlbum);
      cItem.dataSourceUID = dataSource.uid;
      String uuid = UUID.randomUUID().toString();
      cItem.id = uuid;
      cItem.uid = album.getRefId();
      cItem.setUidStr(album.ref);
      result.add(cItem);
      tree.items.add(cItem);
      cItem.type = "leaf";
      if (albumEntries != null && albumEntries.size() > 0) {
        for (int ai = 0; ai < albumEntries.size(); ai++) {
          CListItem article = albumEntries.get(ai);

          ContentTreeItem articleItem = new ContentTreeItem();
          articleItem.name = article.title;
          // articleItem.id = ""+(article.article_id + 50000);
          String uuid3 = UUID.randomUUID().toString();

          // articleItem.id = article.getTreeUid();
          articleItem.id = uuid3;
          articleItem.uidStr = article.getRef();
          articleItem.label = article.title;
          articleItem.contentType =
              "" + ECMContentSourceTypeTools.TypeToInteger(ECMContentSourceType.GooglePicassaItem);
          articleItem.dataSourceUID = dataSource.uid;
          result.add(articleItem);
          tree.items.add(articleItem);
          // c.hasSubCategories = CategoryTools.hasSubCategories(cats, c.index);
          articleItem.type = "item";
          articleItem.setChildren(null);
          articleItem.children = new ArrayList<Reference>();

          Reference articleRef = new Reference();
          articleRef._reference = "" + articleItem.id;
          cItem.addChild(articleRef);
        }
      }
      Reference ref = new Reference();
      ref._reference = "" + album.getRef();
      // ref._reference="" + cItem.id;
    }

    return result;
  }