Java Utililty Methods XML Element Namespace

List of utility methods to do XML Element Namespace

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XML Element Namespace

Description

The list of methods to do XML Element Namespace are organized into topic(s).

Method

void addNamespaceDeclaration(Element element, String namespacePrefix, String namespaceURI)
Adds a namespace declaration attribute to the given element.

element.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI,
 XMLConstants.XMLNS_ATTRIBUTE + ':' + namespacePrefix, namespaceURI);

void addNamespacePrefix(Element element, String namespaceUri, String prefix)
Add a namespace prefix definition to an element.

element.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:" + prefix, namespaceUri);

Map buildNamespacePrefixMap(final Element root)
Build Map of namespace URIs to prefixes.

final HashMap<String, String> namespacePrefixMap = new HashMap<>();
NamedNodeMap attributes = root.getAttributes();
for (int i = 0; i < attributes.getLength(); i++) {
 Node item = attributes.item(i);
 if (item.getNodeName().startsWith("xmlns")) {
 String[] splitName = item.getNodeName().split(":");
 String prefix;
 if (splitName.length > 1) {
...

Map buildNamespacePrefixMap(final Element root)
Build Map of namespace URIs to prefixes.

final HashMap<String, String> namespacePrefixMap = new HashMap<>();
NamedNodeMap attributes = root.getAttributes();
for (int i = 0; i < attributes.getLength(); i++) {
 Node item = attributes.item(i);
 if (item.getNodeName().startsWith("xmlns")) {
 String[] splitName = item.getNodeName().split(":");
 String prefix;
 if (splitName.length > 1) {
...

Element byteArrayToElement(byte[] b, boolean namespaceAware)
Convert the byte array representation of an Element into an Element

DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
docBuilderFactory.setNamespaceAware(namespaceAware);
docBuilderFactory.setValidating(false);
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document doc = docBuilder.parse(new ByteArrayInputStream(b));
return doc.getDocumentElement();

Element createElement(final String namespace, final String localPart, final String value)
create Element

if (document == null) {
 throw new RuntimeException("XMLDocumentBuilder could not be initialized");
Element element = document.createElementNS(namespace, "ns:" + localPart);
element.appendChild(document.createTextNode(value));
return element;

Element createElement(String namespaceURI, String name)
create Element

DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
builderFactory.setNamespaceAware(true);
try {
 final DocumentBuilder builder = builderFactory.newDocumentBuilder();
 final Document document = builder.newDocument();
 return document.createElementNS(namespaceURI, name);
} catch (ParserConfigurationException e) {
 throw new RuntimeException("Couldn't get a DocumentBuilder", e);
...

Element createElement(String namespaceURI, String name)
create Element

return getDocument().createElementNS(namespaceURI, name);

String createNamespace(Element el, String ns)
create Namespace

String p = "ns1";
int i = 1;
while (getPrefix(el, ns) != null) {
 p = "ns" + i;
 i++;
addNamespacePrefix(el, ns, p);
return p;
...

List getAllNamespaceDeclarations(Element element)
get All Namespace Declarations

List<QName> nodes = new ArrayList<>();
NamedNodeMap map = element.getAttributes();
for (int i = 0; i < map.getLength(); i++) {
 Node node = map.item(i);
 String nsUri = node.getNamespaceURI();
 if (nsUri == null) {
 continue;
 if ("http://www.w3.org/2000/xmlns/".equals(nsUri)) {
 nodes.add(new QName(node.getTextContent(), node.getLocalName(), ""));
return nodes;