Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

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

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

public class Main {

    public static void insertBefore(Node source, Node target) {
        target.getParentNode().insertBefore(source, target);
    }

    public static void insertBefore(Node node, String sourceExpress, String targetExpress) {
        NodeList sources = selectNodes(node, sourceExpress);
        Node target = selectSingleNode(node, targetExpress);
        if (sources != null && target != null) {
            for (int i = 0; i < sources.getLength(); i++) {
                insertBefore(sources.item(i), target);
            }
        }
    }

    public static NodeList selectNodes(Node node, String express) {
        NodeList result = null;
        XPathFactory xpathFactory = XPathFactory.newInstance();
        XPath xpath = xpathFactory.newXPath();
        try {
            result = (NodeList) xpath.evaluate(express, node, XPathConstants.NODESET);
        } catch (XPathExpressionException e) {
            e.printStackTrace();
        }

        return result;
    }

    public static Node selectSingleNode(Node node, String express) {
        Node result = null;
        XPathFactory xpathFactory = XPathFactory.newInstance();
        XPath xpath = xpathFactory.newXPath();
        try {
            result = (Node) xpath.evaluate(express, node, XPathConstants.NODE);
        } catch (XPathExpressionException e) {
            e.printStackTrace();
        }

        return result;
    }
}