Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.w3c.dom.NodeList;

public class Main {
    public static Element findNode(Element parentNode, String nodeName) {
        if (parentNode == null)
            throw new NullPointerException("Parent Node cannot be null!");
        if (nodeName == null)
            throw new NullPointerException("Nodename cannot be null!");
        NodeList nodes = parentNode.getElementsByTagName(nodeName);
        if (nodes == null || nodes.getLength() == 0)
            return null;
        if (nodes.getLength() > 1)
            throw new RuntimeException(nodes.getLength() + " nodes found where only 1 was expected");
        return (Element) nodes.item(0);
    }

    public static Element findNode(Document document, String nodeName) {
        if (document == null)
            throw new NullPointerException("Document cannot be null!");
        if (nodeName == null)
            throw new NullPointerException("Nodename cannot be null!");
        NodeList nodes = document.getElementsByTagName(nodeName);
        if (nodes == null || nodes.getLength() == 0)
            return null;
        if (nodes.getLength() > 1)
            throw new RuntimeException(nodes.getLength() + " nodes found where only 1 was expected");
        return (Element) nodes.item(0);
    }
}