code: private String createConfiguration() {
  
          CmsResourceManager resManager = OpenCms.getResourceManager();
          if (resManager == null) {
              // can happen during the OpenCms startup
              return "";
          }
          List<I_CmsResourceType> resTypes = resManager.getResourceTypes();
          List<String> options = new ArrayList<String>();
          for (I_CmsResourceType resType : resTypes) {
              if (resType.isDirectEditable()) {
                  options.add(resType.getTypeName());
              }
          }
          Collections.sort(options);
          return Joiner.on("|").join(options);
      }
docs: Internal method to create the configuration string from the available types.<p>
  
  @return the configuration string