@Override public void show(ExportDataProvider dataProvider,String resourceName){
  String extension=getFileExt(resourceName);
  ExportFormat format=ExportFormat.getByExtension(extension);
  show(dataProvider,resourceName,format);
}

@ Override public void show ( ExportDataProvider dataProvider , String resourceName ) { String extension = getFileExt ( resourceName ) ; ExportFormat format = ExportFormat . getByExtension ( extension ) ; show ( dataProvider , resourceName , format ) ; }
show / download resource at client side
