Java XML Document Print printElements(Document dom)

Description

print Elements

License

Open Source License

Declaration

public static String printElements(Document dom)

Method Source Code

//package com.java2s;
/*/*  w w w .  java 2  s .  c  o  m*/
Copyright 2014 Michael K Martin
    
This file is part of Civet.
    
Civet is free software: you can redistribute it and/or modify
it under the terms of the Lesser GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
Civet is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the Lesser GNU General Public License
along with Civet.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.util.HashSet;

import org.w3c.dom.Document;

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

public class Main {
    public static String printElements(Document dom) {
        if (dom == null)
            return null;
        StringBuffer sb = new StringBuffer();
        walkNodes(dom, sb, "");
        return sb.toString();
    }

    public static void walkNodes(Node nodeIn, StringBuffer sb, String sPad) {
        if (nodeIn == null)
            return;
        NamedNodeMap map = nodeIn.getAttributes();
        if (map != null)
            for (int i = 0; i < map.getLength(); i++) {
                Node n = map.item(i);
                if (n.getNodeType() == Node.ATTRIBUTE_NODE) {
                    sb.append(sPad + "   Attribute:" + n.getNodeName() + " = " + n.getNodeValue() + '\n');
                }
            }
        NodeList nodes = nodeIn.getChildNodes();
        for (int i = 0; i < nodes.getLength(); i++) {
            Node n = nodes.item(i);
            if (n.getNodeType() == Node.ELEMENT_NODE) {
                sb.append(sPad + "Element: " + n.getNodeName() + '\n');
            }
            if (n.getNodeType() == Node.TEXT_NODE) {
                sb.append(sPad + "   Value: = " + n.getNodeValue() + '\n');
            }
            if (n.getNodeType() == Node.ELEMENT_NODE) {
                walkNodes(n, sb, sPad + "   ");
            }
        }
    }

    private static void walkNodes(Node nodeIn, HashSet<String> hElements) {
        if (nodeIn == null)
            return;
        NodeList nodes = nodeIn.getChildNodes();
        for (int i = 0; i < nodes.getLength(); i++) {
            Node n = nodes.item(i);
            if (n.getNodeType() == Node.ELEMENT_NODE) {
                String sNodeName = n.getNodeName();
                if (!hElements.contains(sNodeName))
                    hElements.add(sNodeName);
                walkNodes(n, hElements);
            }
        }
    }
}

Java XML Document Print printElements(Document dom)

Description

License

Declaration

Method Source Code

Related