Java XML CDATA Append setCData(Element element, String data)

Description

Sets data to be the CDATA content of element

License

LGPL

Parameter

Parameter	Description
element	the parent element.
data	the data to set.

Declaration

public static void setCData(Element element, String data) 

Method Source Code

//package com.java2s;
/*//from   ww w.  j a v  a 2  s. c om
 * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
 *
 * Distributable under LGPL license.
 * See terms of license at gnu.org.
 */

import org.w3c.dom.*;

public class Main {
    /**
     * Sets data to be the CDATA content of element
     *
     * @param element the parent element.
     * @param data the data to set.
     */
    public static void setCData(Element element, String data) {
        if (data == null)
            return;

        CDATASection txt = getCDataNode(element);
        if (txt != null)
            txt.setData(data);
        else {
            txt = element.getOwnerDocument().createCDATASection(data);
            element.appendChild(txt);
        }
    }

    /**
     * Returns element's CDATA child node (if it has one).
     * @param element the element whose CDATA we need to get.
     * @return a CDATASection object containing the specified element's CDATA
     * content
     */
    public static CDATASection getCDataNode(Element element) {
        return (CDATASection) getChildByType(element, Node.CDATA_SECTION_NODE);
    }

    /**
     * Returns first of the <tt>element</tt>'s child nodes that is of type
     * <tt>nodeType</tt>.
     * @param element the element whose child we need.
     * @param nodeType the type of the child we need.
     * @return a child of the specified <tt>nodeType</tt> or null if none
     * was found.
     */
    public static Node getChildByType(Element element, short nodeType) {
        if (element == null)
            return null;

        NodeList nodes = element.getChildNodes();
        if (nodes == null || nodes.getLength() < 1)
            return null;

        Node node;
        String data;
        for (int i = 0; i < nodes.getLength(); i++) {
            node = nodes.item(i);
            short type = node.getNodeType();
            if (type == nodeType) {
                if (type == Node.TEXT_NODE || type == Node.CDATA_SECTION_NODE) {
                    data = ((Text) node).getData();
                    if (data == null || data.trim().length() < 1)
                        continue;
                }

                return node;
            }
        }

        return null;
    }
}

Related

1. appendCDATAElement(Element parent, String tagName, String value)
2. appendCDATASection(CDATASection cdataSection, StringBuffer buf)
3. appendCDATASection(Node parent, String name, Object data)
4. appendCDATASubNode(String elementName, String nodeData, Element parentElement, Document doc)
5. setCDATA(Element element, String data)