public static boolean isAcceptRange ( int responseCode , FileDownloadConnection connection ) { if ( responseCode == HttpURLConnection . HTTP_PARTIAL || responseCode == FileDownloadConnection . RESPONSE_CODE_FROM_OFFSET ) return true ; final String acceptRanges = connection . getResponseHeaderField ( "Accept-Ranges" ) ; return "bytes" . equals ( acceptRanges ) ; }
accept range is effect by response code and Accept - Ranges header field .