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 java.util.ArrayList;

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 ArrayList<Element> selectElements(Element element, String xpathExpression) throws Exception {
        ArrayList<Element> resultVector = new ArrayList<Element>();
        if (element == null) {
            return resultVector;
        }
        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)) {
                    resultVector.add((Element) node);
                }
            }
        } else {
            XPath xpath = XPathFactory.newInstance().newXPath();
            NodeList nodes = (NodeList) xpath.evaluate(xpathExpression, element, XPathConstants.NODESET);

            for (int i = 0; i < nodes.getLength(); i++) {
                Node node = nodes.item(i);
                resultVector.add((Element) node);
            }
        }
        return resultVector;
    }
}