How to use

de.pdark.decentxml.Namespace

constructor

namespaces.addNamespace (new Namespace (name.substring (Namespace.NS_PREFIX.length ()), a.getValue ()));

protected Node replaceNamespace(Node node, String oldNS, String newNS) {
  if (node instanceof Element) {
    String ns = getNamespaceURI(node);
    if (ns != null && ns.equals(oldNS)) {
      Namespace namespace = ((Element) node).getNamespace();
      if (namespace != null) {
        if (namespace.getURI() != null && namespace.getURI().equals(oldNS)) {
          ((Element) node).setNamespace(new Namespace(namespace.getPrefix(), newNS));
        }
      }
      for (Attribute attr : ((Element) node).getAttributes()) {
        if (attr.getName().startsWith("xmlns")) {
          String value = attr.getValue();
          if (value != null && value.equals(oldNS)) {
            attr.setValue(newNS);
          }
        }
      }
    }
  }
  if (node instanceof NodeWithChildren) {
    for (Node n : ((NodeWithChildren) node).getNodes()) {
      replaceNamespace(n, oldNS, newNS);
    }
  }
  return node;
}

protected Node replaceNamespace(Node node, String oldNS, String newNS) {
  if (node instanceof Element) {
    String ns = getNamespaceURI(node);
    if (ns != null && ns.equals(oldNS)) {
      Namespace namespace = ((Element) node).getNamespace();
      if (namespace != null) {
        if (namespace.getURI() != null && namespace.getURI().equals(oldNS)) {
          ((Element) node).setNamespace(new Namespace(namespace.getPrefix(), newNS));
        }
      }
      for (Attribute attr : ((Element) node).getAttributes()) {
        if (attr.getName().startsWith("xmlns")) {
          String value = attr.getValue();
          if (value != null && value.equals(oldNS)) {
            attr.setValue(newNS);
          }
        }
      }
    }
  }
  if (node instanceof NodeWithChildren) {
    for (Node n : ((NodeWithChildren) node).getNodes()) {
      replaceNamespace(n, oldNS, newNS);
    }
  }
  return node;
}