Get Elements by parent element : DOM Element « XML « Java Tutorial

1. Java Tutorial
2. XML
3. DOM Element

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;

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

/*******************************************************************************
 * Copyright (C) 2007 Google Inc.
 * 
 * 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.
 ******************************************************************************/

/**
 * Various XML utilities.
 * 
 * @author simonjsmith, ksim
 * @version 1.1 - ksim - March 6th, 2007 - Added functions regarding streaming
 * @version 1.2 - ksim - March 10th, 2007 - Added functions regarding DOM
 *          manipulation
 */
public class Utils {
  public static Element[] getElements(Document document, Element parent) {
    if (parent == null) {
      return new Element[] {};
    }

    NodeList nl = parent.getChildNodes();
    ArrayList al = new ArrayList();

    for (int i = 0; i < nl.getLength(); i++) {
      Node n = nl.item(i);

      if (n instanceof Element) {
        al.add((Element) nl.item(i));
      }
    }

    Element[] ret = new Element[al.size()];
    Iterator it = al.iterator();
    int i = 0;
    while (it.hasNext()) {
      ret[i] = (Element) it.next();
      i++;
    }

    return ret;
  }

}