Java XML Node Read readNodeElementsToMap(final Node sourceNode)

Description

For the given sourceNode , read each "top level" element into the resulting Map .

License

Apache License

Declaration

public static Map<String, String> readNodeElementsToMap(final Node sourceNode) 

Method Source Code

//package com.java2s;
/*/*from  w w  w  .j av a 2 s.  com*/
 *   Copyright 2002-2012 George Norman
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

import java.util.HashMap;
import java.util.Map;

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

public class Main {
    /**
     * For the given {@code sourceNode}, read each "top level" element into the resulting {@code Map}. Each element name
     * is a key to the map, each element value is the value paired to the key. Example - anchor is the node, label and
     * href are keys:
     *
     * <pre>
     * {@code
     * <anchor>
     *  <label>Slashdot</label>
     *    <href>http://slashdot.org/</href>
     *  </anchor>
     * }
     * </pre>
     */
    public static Map<String, String> readNodeElementsToMap(final Node sourceNode) {
        Map<String, String> result = new HashMap<String, String>();

        if (sourceNode == null) {
            return result;
        }

        NodeList childNodes = sourceNode.getChildNodes();
        for (int i = 0; i < childNodes.getLength(); i++) {
            Node element = childNodes.item(i);

            if (element.getNodeType() == Node.ELEMENT_NODE) {
                String elementName = element.getNodeName();
                String elementValue = "";
                Node firstChild = element.getFirstChild();

                if (firstChild != null) {
                    elementValue = firstChild.getNodeValue();
                }

                if (elementValue != null) {
                    result.put(elementName, elementValue);
                }
            }
        }

        return result;
    }
}

Related

1. readDouble(Node node)
2. readText(Node element)