Java Utililty Methods XML Element Find

List findAllElementsByTagName(Element elem, String tagName)
find All Elements By Tag Name

List<Element> ret = new LinkedList<Element>();
findAllElementsByTagName(elem, tagName, ret);
return ret;

void findAllElementsByTagNameNS(Element el, String nameSpaceURI, String localName, List elementList)
find All Elements By Tag Name NS

if (localName.equals(el.getLocalName()) && nameSpaceURI.contains(el.getNamespaceURI())) {
 elementList.add(el);
Element elem = getFirstElement(el);
while (elem != null) {
 findAllElementsByTagNameNS(elem, nameSpaceURI, localName, elementList);
 elem = getNextElement(elem);

Element findComponentElement(Element root)
find Component Element

if (root == null) {
 return null;
NodeList children = root.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
 Node child = children.item(i);
 if (child.getNodeType() == Node.ELEMENT_NODE) {
 Element trimmedElement = findComponentElement((Element) child);
...

Element findComponentElement(Element root)
find Component Element

if (root == null) {
 return null;
NodeList children = root.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
 Node child = children.item(i);
 if (child.getNodeType() == Node.ELEMENT_NODE) {
 Element trimmedElement = findComponentElement((Element) child);
...

Element findElement(Element element, String elementName)
If there is no such element, one will be created on element .

NodeList elements = element.getElementsByTagName(elementName);
if ((elements == null) || (elements.getLength() == 0)) {
 return createElement(element, elementName);
return (Element) elements.item(0);

Element findElement(Element element, String name)
find Element

NodeList list = element.getChildNodes();
for (int i = 0; i < list.getLength(); i++) {
 Node child = (Node) list.item(i);
 if (child instanceof Element) {
 Element childEl = (Element) child;
 if (name.equals(childEl.getLocalName())) {
 return childEl;
 } else {
...

Element findElement(Element root, String localName, String namespace)
find Element

return findElement(root, new QName(namespace, localName));

Element findElement(Element topElm, String localName, String namespace)
Find element.

Stack<Element> stack = new Stack<Element>();
stack.push(topElm);
while (!stack.isEmpty()) {
 Element curElm = stack.pop();
 if ((curElm.getLocalName().equals(localName))
 && (namespacesAreSame(curElm.getNamespaceURI(), namespace))) {
 return curElm;
 NodeList childNodes = curElm.getChildNodes();
 for (int i = 0, ll = childNodes.getLength(); i < ll; i++) {
 Node item = childNodes.item(i);
 if (item.getNodeType() == Node.ELEMENT_NODE) {
 stack.push((Element) item);
return null;

Element findElement(final Element e, final String find)
Find a child element.

for (Node child = e.getFirstChild(); child != null; child = child.getNextSibling()) {
 if (!(child instanceof Element)) {
 continue;
 final Element el = (Element) child;
 if (el.getNodeName().equals(find)) {
 return el;
return null;

Element findElement(final String idValue, final String idTagName, final String tagName, final Element root)
find element with tagName whose id tag is 'idTagName' and id value is 'id_value'

String textVal = null;
final NodeList nl = root.getElementsByTagName(tagName);
if (nl != null && nl.getLength() > 0) {
 for (int i = 0; i < nl.getLength(); i++) {
 final Element ei = (Element) nl.item(i);
 final NodeList n2 = ei.getElementsByTagName(idTagName);
 if (n2 != null && n2.getLength() > 0) {
 for (int j = 0; j < n2.getLength(); j++) {
...