Java Utililty Methods XML Namespace

List of utility methods to do XML Namespace

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Description

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

Method

XPathExpressioncompile(String expression, NamespaceContext namespaceContext)
Compiles an XPath expression for later evaluation. 
return createXPath(namespaceContext, null).compile(expression);
NamespaceContextcreateNamespaceContext(final String nsPrefix, final String nsUri)
create Namespace Context 
return new NamespaceContext() {
    public String getNamespaceURI(String prefix) {
        if (prefix.equals(nsPrefix)) {
            return nsUri;
        } else {
            return XMLConstants.NULL_NS_URI;
    public String getPrefix(String namespace) {
        if (namespace.equals(nsUri)) {
            return nsPrefix;
        } else {
            return null;
    public Iterator<String> getPrefixes(String namespace) {
        return null;
};
XMLReadercreateXMLReader(boolean validating, boolean namespaceAware)
This method attempts to use JAXP to locate the SAX2 XMLReader implementation. 
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(validating);
factory.setNamespaceAware(namespaceAware);
SAXParser parser = factory.newSAXParser();
return parser.getXMLReader();
XMLReadercreateXMLReader(boolean validating, boolean withNamespace)
Create an XMLReader instance. 
try {
    synchronized (parserFactory) {
        parserFactory.setValidating(validating);
        parserFactory.setNamespaceAware(withNamespace);
        return parserFactory.newSAXParser().getXMLReader();
} catch (ParserConfigurationException e) {
    throw new SAXException(e);
...
StringgetBaseNamespace(InputStream owlStream)
get Base Namespace 
String base = "";
try {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);
    DocumentBuilder builder = factory.newDocumentBuilder();
    Document doc = builder.parse(owlStream);
    Element root = doc.getDocumentElement();
    NamedNodeMap attributes = root.getAttributes();
...
DocumentBuildergetBuilder(boolean ignoreComments, boolean validating, boolean ignoreContentWhitespace, boolean isNamespaceAware)
get Builder 
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setIgnoringComments(ignoreComments);
factory.setValidating(validating);
factory.setIgnoringElementContentWhitespace(ignoreContentWhitespace);
factory.setNamespaceAware(isNamespaceAware);
DocumentBuilder builder = null;
try {
    builder = factory.newDocumentBuilder();
...
NamespaceContextgetCarbonNamespace()
get Carbon Namespace 
NamespaceContext ctx = new NamespaceContext() {
    public String getNamespaceURI(String prefix) {
        return "http://wso2.org/projects/carbon/carbon.xml";
    public String getPrefix(String arg0) {
        return null;
    public Iterator getPrefixes(String namespaceURI) {
...
StringgetDefaultNamespaceURI(final XMLStreamWriter writer)
get Default Namespace URI 
return writer.getNamespaceContext().getNamespaceURI(XMLConstants.DEFAULT_NS_PREFIX);
DocumentBuilderFactorygetFactory(boolean validate, boolean namespaceAware)
get Factory 
DocumentBuilderFactory factory = doms[validate ? 0 : 1][namespaceAware ? 0 : 1];
if (factory == null) {
    factory = DocumentBuilderFactory.newInstance();
    factory.setValidating(validate);
    factory.setNamespaceAware(namespaceAware);
    doms[validate ? 0 : 1][namespaceAware ? 0 : 1] = factory;
return factory;
...
StringgetNamespace(Class clazz, String namespace)
get Namespace 
if (namespace == null || namespace.trim().length() == 0) {
    Package pkg = clazz.getPackage();
    if (pkg == null) {
        return null;
    } else {
        return getNamespace(pkg.getName());
} else {
...