org.embl.ebi.escience.scuflworkers.java.EncodeBase64 File f = new File(filename); if (!f.exists() || !f.canRead() || f.length() == 0) throw new Exception("File unreadable or zero length"); if (f.length() > 1000000) throw new Exception("File too big to convert to base64"); byte[] bytesArray = new byte[f.length()]; FileInputStream filein = new FileInputStream(filename); int total = 0; byte[] buffer = new byte[1000]; int i; int n = filein.read(buffer); while (n >= 0) { for (i=0; i<n; ++i) bytesArray[total + i] = buffer[i]; total += n; n = filein.read(buffer); } if (total != f.length()) throw new Exception("File size does not match amount of data read"); bytes = bytesArray; filename bytes