Esempio n. 1
0
 private static void checkCRC(Element element) throws CRCMismatchException {
   Element CRCElement = element.getChild(CRC_ELEMENT);
   if (CRCElement != null) {
     String crc = CRCElement.getText();
     // the length in bytes is the number of characters divided by 2
     int crcLength = crc.length() / 2;
     if (!crc.equals(element.getHash(crcLength, CRC_ELEMENT))) {
       throw new CRCMismatchException();
     }
   }
 }
Esempio n. 2
0
 //    public static void write(OutputStream stream, Element element, int hashLength) throws
 // XMLStreamException {
 //        XMLOutputFactory xof = XMLOutputFactory.newInstance();
 //        IndentingXMLStreamWriter xtw = new
 // IndentingXMLStreamWriter(xof.createXMLStreamWriter(stream));
 //        writeXMLStreamWriter(xtw, element, hashLength);
 //    }
 //
 private static void writeXMLStreamWriter(XMLStreamWriter xtw, Element element, int hashLength)
     throws XMLStreamException {
   if (hashLength > 0) {
     String hash = element.getHash(hashLength);
     Element hashElement = new Element(CRC_ELEMENT);
     hashElement.setText(hash);
     element.addChild(hashElement);
   }
   writeElement(xtw, element);
   xtw.writeEndDocument();
   xtw.flush();
   xtw.close();
   if (hashLength > 0) {
     element.removeChildren(CRC_ELEMENT);
   }
 }