Java XML Element Value getElementValue(Element element)

Description

Check if the element contains just a text/cdata, in which case return that value.

License

Open Source License

Parameter

Parameter	Description
element	a parameter

Return

null if this is not a textElement as we see it. Value of single text/CData child otherwise

Declaration

private static String getElementValue(Element element) 

Method Source Code

//package com.java2s;
/*// w  w  w.  java  2  s .  c  o m
 * Copyright (c) 2015 EXILANT Technologies Private Limited (www.exilant.com)
 * Copyright (c) 2016 simplity.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import org.w3c.dom.Element;

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

public class Main {
    /**
     * Check if the element contains just a text/cdata, in which case return
     * that value. Else return null;
     *
     * @param element
     * @return null if this is not a textElement as we see it. Value of single
     *         text/CData child otherwise
     */
    private static String getElementValue(Element element) {
        if (element.getAttributes().getLength() > 0) {
            return null;
        }

        NodeList children = element.getChildNodes();
        String value = null;
        int nbrChildren = children.getLength();
        for (int i = 0; i < nbrChildren; i++) {
            Node child = children.item(i);
            short childType = child.getNodeType();
            if (childType == Node.ELEMENT_NODE) {
                return null;
            }
            if (childType == Node.CDATA_SECTION_NODE || childType == Node.TEXT_NODE) {
                if (value != null) {
                    return null;
                }
                value = child.getNodeValue();
            }
        }
        return value;
    }
}

Related

1. getElementValue(Element elem, String path)
2. getElementValue(Element element)
3. getElementValue(Element element)
4. getElementValue(Element element)
5. getElementValue(Element element)