Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

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

public class Main {
    /**
     * Trivial convenience method to extract the value of a (text) Element, coping with the
     * possibility that text child Nodes may not have been coalesced.
     * 
     * @param textElement
     */
    public static String extractTextElementValue(final Element textElement) {
        NodeList childNodes = textElement.getChildNodes();
        String result;
        if (childNodes.getLength() == 1) {
            /* Text Nodes have been coalesced */
            result = ensureExtractTextNodeValue(childNodes.item(0));
        } else {
            /* Need to coalesce manually */
            StringBuilder resultBuilder = new StringBuilder();
            for (int i = 0; i < childNodes.getLength(); i++) {
                resultBuilder.append(ensureExtractTextNodeValue(childNodes.item(i)));
            }
            result = resultBuilder.toString();
        }
        return result;
    }

    private static String ensureExtractTextNodeValue(final Node node) {
        if (node.getNodeType() == Node.TEXT_NODE) {
            return node.getNodeValue();
        }
        throw new IllegalArgumentException("Node is not a text Node");
    }
}