Mega Code Archive
XML DOM Utilities
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import java.io.OutputStream;
import java.io.Writer;
import java.util.Vector;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
//<p></p><p></p><p></p><p></p>
public class XMLUtils {
public static DocumentBuilder getDOMBuilder() throws ParserConfigurationException {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
return dbf.newDocumentBuilder();
}
public static Transformer getTransformer() throws TransformerConfigurationException {
TransformerFactory tf = TransformerFactory.newInstance();
return tf.newTransformer();
}
public static Document createDocument() throws ParserConfigurationException {
return XMLUtils.getDOMBuilder().newDocument();
}
public static Element firstChildElement(Node node) {
for (Node tempNode = node.getFirstChild(); tempNode != null; tempNode = tempNode
.getNextSibling()) {
if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
return (Element) tempNode;
}
}
return null;
}
public static Element nextSiblingElement(Node node) {
for (Node tempNode = node.getNextSibling(); tempNode != null; tempNode = tempNode
.getNextSibling()) {
if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
return (Element) tempNode;
}
}
return null;
}
public static Element lastChildElement(Node node) {
for (Node tempNode = node.getLastChild(); tempNode != null; tempNode = tempNode
.getPreviousSibling()) {
if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
return (Element) tempNode;
}
}
return null;
}
public static Element previousSiblingElement(Node node) {
for (Node tempNode = node.getPreviousSibling(); tempNode != null; tempNode = tempNode
.getPreviousSibling()) {
if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
return (Element) tempNode;
}
}
return null;
}
public static Vector getAllChildElements(Node node) {
Vector v = new Vector();
Node child = XMLUtils.firstChildElement(node);
while (child != null) {
v.add(child);
child = XMLUtils.nextSiblingElement(child);
}
return v;
}
public static Vector getChildElementsByNS(Node node, String uri, String localName) {
Vector childElements = XMLUtils.getAllChildElements(node);
Vector v = new Vector();
for (int i = 0; i < childElements.size(); i++) {
Element child = (Element) childElements.get(i);
String ln = child.getLocalName();
String u = child.getNamespaceURI();
if (uri == null) {
if (ln.equals(localName)) {
v.add(child);
}
} else {
if (ln.equals(localName) && u.equals(uri)) {
v.add(child);
}
}
}
return v;
}
public static String getLocalName(String nodeName) {
int index = nodeName.lastIndexOf(58);
if (index == -1) {
return nodeName;
} else {
return nodeName.substring(index + 1, nodeName.length());
}
}
public static String getPrefix(String nodeName) {
int index = nodeName.lastIndexOf(58);
if (index == -1) {
return null;
} else {
return nodeName.substring(0, index);
}
}
public static void outDOMNode(Node node, Writer writer) throws TransformerConfigurationException,
TransformerException {
Transformer transformer = XMLUtils.getTransformer();
Source source = new DOMSource(node);
Result result = new StreamResult(writer);
transformer.transform(source, result);
}
public static void outDOMNode(Node node, OutputStream os)
throws TransformerConfigurationException, TransformerException {
Transformer transformer = XMLUtils.getTransformer();
Source source = new DOMSource(node);
Result result = new StreamResult(os);
transformer.transform(source, result);
}
}
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