public static void addElement(
Document document, Node node, String elementName, String elementData) {
if ((document != null) && (node != null) && StringUtils.isNotNullOrEmpty(elementName)) {
Node childNode = document.createElement(elementName);
if (StringUtils.isNotNullOrEmpty(elementData)) {
Node textNode = document.createTextNode(elementData);
childNode.appendChild(textNode);
}
node.appendChild(childNode);
}
}
public static List<Element> getChildElementsByTagName(Node node, String elementName) {
if ((node != null) && StringUtils.isNotNullOrEmpty(elementName)) {
NodeList nodeList = node.getChildNodes();
return getElementsByTagName(nodeList, elementName);
}
return (List<Element>) null;
}
public static Element findFirstElementByTagName(Document document, String elementName) {
if ((document != null) && StringUtils.isNotNullOrEmpty(elementName)) {
NodeList nodeList = document.getElementsByTagName(elementName);
return getFirstElement(nodeList);
}
return null;
}
private static Element getFirstElementByTagName(NodeList nodeList, String elementName) {
if ((nodeList != null)
&& (nodeList.getLength() > 0)
&& StringUtils.isNotNullOrEmpty(elementName)) {
for (int index = 0; index < nodeList.getLength(); index++) {
Node childNode = nodeList.item(index);
if (childNode instanceof Element) {
Element childElement = (Element) childNode;
if (elementName.equals(childElement.getNodeName())) {
return childElement;
}
}
}
}
return null;
}
private static List<Element> getElementsByTagName(NodeList nodeList, String elementName) {
List<Element> elements = null;
if ((nodeList != null)
&& (nodeList.getLength() > 0)
&& StringUtils.isNotNullOrEmpty(elementName)) {
for (int index = 0; index < nodeList.getLength(); index++) {
Node childNode = nodeList.item(index);
if (childNode instanceof Element) {
Element childElement = (Element) childNode;
if (elementName.equals(childElement.getNodeName())) {
if (elements == null) {
elements = new ArrayList<Element>();
}
elements.add(childElement);
}
}
}
}
return elements;
}
