code: public static String getVaadinWorkplaceLink(CmsObject cms, String resourceRootFolder) {
  
          CmsSite site = OpenCms.getSiteManager().getSiteForRootPath(resourceRootFolder);
          String siteRoot = site != null
          ? site.getSiteRoot()
          : OpenCms.getSiteManager().startsWithShared(resourceRootFolder)
          ? OpenCms.getSiteManager().getSharedFolder()
          : "";
          String sitePath = resourceRootFolder.substring(siteRoot.length());
          String link = getFileExplorerLink(cms, siteRoot) + sitePath;
          return link;
      }
docs: Returns the workplace link.<p>
  
  @param cms the cms context
  @param resourceRootFolder the resource folder root path
  
  @return the workplace link