Cancelling a file upload or download using Java 2 API

Is something like this appropriate?

                DbxDownloader<FileMetadata> downloader = dbxClient.files().downloadBuilder(dropboxPath + "/" + localFile)
                        .start();
                InputStream inputStream = downloader.getInputStream();
                int count;
                long bytesWritten = 0;
                boolean keepGoin = true;
                byte data[] = new byte[WRITE_BUFFER];
                while ( keepGoin && ((count = inputStream.read(data, 0, WRITE_BUFFER)) != -1)) {
                    outputStream.write(data, 0, count);
                    bytesWritten += count;
                    progressListener.onProgress(bytesWritten);
                    if ( listener != null ) {
                        keepGoin = listener.cancelFileOperation();
                    }
                }
                if ( bytesWritten != size) {
                    // Means we were interrupted
                    throw new UserCancelException(InTouch.getInstance().getString(R.string.interrupted_exception_cancel_xfer));
                }