public static String getAttribute(Node node, String localName, String namespaceURI) {
    Node attributeNode = node.getAttributes().getNamedItemNS(namespaceURI, localName);
    if (attributeNode == null) {
      return null;
    }
    return attributeNode.getTextContent();
  }
*
Creates a node from the String xml definition

@return Node representing the xml definition
geode-core/src/main/java/org/apache/geode/management/internal/configuration/utils/XmlUtils.java