Class to support XML Config.

Question

Hi ,
I have a system that loads your properties trough a class that reads an xml file. For example ans sysconfig.xml that holds all of the system properties. Now, i need to load xml properties to another class, for example an class that read files from another application, and i need to store password, login, path, etc..
What is the best approach to create an generic class that receives an string that represents an xml and load it?
Is too ugly receives an String with the name of xml to load??
Thanks for suggestions..

Answer 1

This is my method that loads the xml configuration:
     private synchronized void loadPropriedades() throws FileException {
          if (propriedades != null) {
               return;
          try {
               DocumentBuilder db = JAXPFactory.getInstance().getFactory();
               Document xml = db.parse(getClass().getResourceAsStream(
                         "/.xml"));
               NodeList nodeListPrincipal = xml.getElementsByTagName("Config");
               NamedNodeMap atributos = nodeListPrincipal.item(0).getAttributes();
               Node nodeAtual = null;
               propriedades = new HashMap();
               for (int f = 0; f < atributos.getLength(); f++) {
                    nodeAtual = atributos.item(f);
                    propriedades.put(nodeAtual.getNodeName(), nodeAtual
                              .getNodeValue());
          } catch (SAXException sae) {
               Log.error("Erro na leitura do XML de configurações do sistema", se);
          } catch (ParserConfigurationException pace) {
               Log.error("Erro ao traduzir XML de configurações do sistema", pce);
          } catch (IOException ioe) {
               Log.error("Erro na abertura do XML de configurações do sistema",
                         ioe);
          } catch (Exception e) {
               Log.error(e);
My idea is transform the method above to something like private synchronized void loadPropriedades(String XmlReceived) <----------------------------------- To avoid create one class to each xml, make a class to load, but i dont know if receives a String with xml name is good...
Understand?
Thanks !