Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: GNU General Public License 

import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    static public Element selectSingleElement(Element element, String xpathExpression) throws Exception {
        if (xpathExpression.indexOf("/") == -1) {
            NodeList nodeList = element.getChildNodes();
            for (int i = 0; i < nodeList.getLength(); i++) {
                Node node = nodeList.item(i);
                if (node.getNodeType() == Node.ELEMENT_NODE && node.getNodeName().equals(xpathExpression)) {
                    return (Element) node;
                }
            }
            //  NodeList nodes = element.getElementsByTagName(xpathExpression);
            //  if (nodes.getLength() > 0) {
            //      return (Element) nodes.item(0);
            //  } else {
            return null;
            //  }
        } else {
            XPath xpath = XPathFactory.newInstance().newXPath();
            Element node = (Element) xpath.evaluate(xpathExpression, element, XPathConstants.NODE);
            return node;
        }
    }
}