Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2013 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */

import java.util.HashSet;

import java.util.Set;

import org.w3c.dom.Element;

public class Main {
    /**
     * Returns a set of the direct ancestors of each element in elements.
     * If one element does not have an ancestor, the whole set will be empty.
     */
    public static Set<Element> getDirectAncestors(Set<Element> elements) {
        Set<Element> directAncestors = new HashSet<Element>();
        for (Element element : elements) {
            if (element.getParentNode() != null && element.getParentNode() instanceof Element) {
                directAncestors.add((Element) element.getParentNode());
            } else {
                return new HashSet<Element>();
            }
        }
        return directAncestors;
    }
}