Problem changing XML element in Adapter Module

Question

Hey!
I am developing an adapter module to transform a coded password back to clear text. I have access to the XML element where the password is and I get to transform it, but I have 2 problems as also stated in the code:
1) I cannot set the new value back to the node. I try with
firstNode.getFirstChild().setNodeValue(decodedPwd);
but this does not seem to work. How can I achieve this?
2) Between the first issue and the code
msg.setDocument(xmlpayload);
I am not sure how to get my new values for the node back in the XMLPayload. How can I achieve this?
Here is the code:
msg = (Message) inputModuleData.getPrincipalData();
          XMLPayload xmlpayload = msg.getDocument();
          factory = DocumentBuilderFactory.newInstance();
          DocumentBuilder builder = factory.newDocumentBuilder();
          Document document = builder.parse((InputStream)xmlpayload.getInputStream());
          password = (Element)document.getElementsByTagName("ns1:passord").item(0);
          firstNode = password.getFirstChild();                    
          pwd = firstNode.getNodeValue();
          if(pwd != null){
               decodedPwd = Decoder.decodeString(pwd);
// THIS FAILS!
          firstNode.getFirstChild().setNodeValue(decodedPwd);
//HOW TO SET NEW NODE VALUE TO XMLPAYLOAD HERE?
          msg.setDocument(xmlpayload);
          inputModuleData.setPrincipalData(msg);
               return inputModuleData;          
Help is much appreciated!
Thanks!
regards Ole

Answer 1

Hey!
The problem was solved. The code snipped I found was:
               DOMSource DOMSource = new DOMSource(document);
               ByteArrayOutputStream myBytes = new ByteArrayOutputStream();
               Result dest = new StreamResult(myBytes);
               TransformerFactory tf = TransformerFactory.newInstance();
               Transformer serializer = tf.newTransformer();
               serializer.transform(DOMSource, dest);
               byte[] docContent = myBytes.toByteArray();
               xmlpayload.setContent(docContent);
               msg.getDocument().setContent(xmlpayload.getContent());               
Ole
Edited by: Ole Mugaas on Mar 27, 2008 8:43 PM