code: public String getDatabaseConfigPage(String key) {
  
          // don't use File.separatorChar here, result must be a valid URL with "/" path delimiters
          String configUri = FOLDER_DATABASE + key + "/" + "step_4_database_setup.jsp";
          return CmsStringUtil.substitute(configUri, File.separator, "/");
      }
docs: Returns the URI of a database config page (in step 3) for a specified database key.<p>
  
  @param key the database key (e.g. "mysql", "generic" or "oracle")
  @return the URI of a database config page