Java XML Node Text Value getText(Node node)

Description

Return the text that a node contains.

License

EUPL

Parameter

Parameter	Description
node	A DOM node from which to extract text.

Return

A String representing its contents.

Declaration

public static String getText(Node node) 

Method Source Code

//package com.java2s;
/*//from w  ww .  ja  va  2s  .c  o m
 * Copyright 2003 Federal Chancellery Austria
 * MOA-ID has been developed in a cooperation between BRZ, the Federal
 * Chancellery Austria - ICT staff unit, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */

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

public class Main {
    /**
      * Return the text that a node contains. 
      * 
      * This routine:
      * <ul>
      * <li>Ignores comments and processing instructions.</li>
      * <li>Concatenates TEXT nodes, CDATA nodes, and the results recursively
      * processing EntityRef nodes.</li>
      * <li>Ignores any element nodes in the sublist. (Other possible options are
      * to recurse into element sublists or throw an exception.)</li>
      * </ul>
      * 
      * @param node A DOM node from which to extract text.
      * @return A String representing its contents.
      */
    public static String getText(Node node) {
        if (!node.hasChildNodes()) {
            return "";
        }

        StringBuffer result = new StringBuffer();
        NodeList list = node.getChildNodes();

        for (int i = 0; i < list.getLength(); i++) {
            Node subnode = list.item(i);
            if (subnode.getNodeType() == Node.TEXT_NODE) {
                result.append(subnode.getNodeValue());
            } else if (subnode.getNodeType() == Node.CDATA_SECTION_NODE) {
                result.append(subnode.getNodeValue());
            } else if (subnode.getNodeType() == Node.ENTITY_REFERENCE_NODE) {
                // Recurse into the subtree for text
                // (and ignore comments)
                result.append(getText(subnode));
            }
        }
        return result.toString();
    }
}

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