Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import org.w3c.dom.CDATASection;

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

public class Main {
    /**
     * Adds a new element containing a CDATA section to the parent element
     * @param parent the parent element to add the new element to
     * @param namespaceURI the namespace of the added element's tag name, or null if there isn't any..
     * @param tag the tag name of the new element
     * @param text the text of the CDATA section (if text is null or empty no CDATA section will be added).
     */
    public static void addTextElementNS(Element parent, String namespaceURI, String tag, String text) {

        // Add an element with the given tag name.
        Document document = parent.getOwnerDocument();
        Element textElement = namespaceURI != null ? document.createElementNS(namespaceURI, tag)
                : document.createElement(tag);
        parent.appendChild(textElement);

        if (text != null && text.length() > 0) {
            CDATASection cdata = createCDATASection(document, text);
            textElement.appendChild(cdata);
        }
    }

    /**
     * Creates a <code>CDATASection</code> node whose value is the specified string.  This is different from 
     * Document.createCDATASection() in that this method first converts all "\r\n" and "\r" to "\n" to guard 
     * against XML "features" that transform "\r\n" to "\r\r\n" on output.
     * @param document
     * @param data The data for the <code>CDATASection</code> contents.
     * @return The new <code>CDATASection</code> object.
     * @exception org.w3c.dom.DOMException
     *   NOT_SUPPORTED_ERR: Raised if this document is an HTML document.
     */
    public static CDATASection createCDATASection(Document document, String data) {
        String convertedData = convertNewLines(data);
        return document.createCDATASection(convertedData);
    }

    /**
     * Convert instances of a newline in a string to '\n'.
     * This is particularly necessary when creating a CDATA node from Windows, as the newline separator on this
     * platform is "\r\n", which (unbelievably) is serialized to "\r\r\n" as a "feature"!  Of course, when this is
     * read back in, it is converted to "\n\n", meaning that the text was converted from single to double spaced.
     * To guard against this, all instances of "\r\n" and "\r" are converted to "\n".
     * @param stringToConvert the string to convert.
     * @return the converted string.
     */
    private static String convertNewLines(String stringToConvert) {
        return stringToConvert.replaceAll("\r\n", "\n").replaceAll("\r", "\n"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
    }
}