question: generate the random prefix . copied from : com.vportal.portlet.newsadmin.utils.newsutils concode_field_sep PlaceHolder placeHolder concode_field_sep String dateParser concode_elem_sep Date dateParser concode_elem_sep String trimString
target: String function ( ) { Calendar loc0 = Calendar . getInstance ( ) ; String loc1 = String . valueOf ( loc0 . getTimeInMillis ( ) ) ; if ( Validator . isNotNull ( loc1 ) && loc1 . length ( ) > 23 ) { loc1 = loc1 . substring ( 10 , 23 ) ; } return loc1 ; }