code: private String getContenFileName() {
          final String file  = this.content.getPath();
          if(file.indexOf('/') != -1){
              return file.substring(file.lastIndexOf('/'));
          }
          return file;
      }
docs: Extracts the name of the resource from the url itself. The filename from the path-part of the URL is extracted.
  
  @return
  the name of the resource that provided the content