001package org.cpsolver.studentsct.heuristics.studentord;
002
003import java.util.ArrayList;
004import java.util.Collections;
005import java.util.List;
006
007import org.cpsolver.ifs.util.DataProperties;
008import org.cpsolver.studentsct.model.Student;
009
010
011/**
012 * Return the given set of students in a random order
013 * 
014 * @author  Tomáš Müller
015 * @version StudentSct 1.3 (Student Sectioning)<br>
016 *          Copyright (C) 2007 - 2014 Tomáš Müller<br>
017 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
018 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
019 * <br>
020 *          This library is free software; you can redistribute it and/or modify
021 *          it under the terms of the GNU Lesser General Public License as
022 *          published by the Free Software Foundation; either version 3 of the
023 *          License, or (at your option) any later version. <br>
024 * <br>
025 *          This library is distributed in the hope that it will be useful, but
026 *          WITHOUT ANY WARRANTY; without even the implied warranty of
027 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
028 *          Lesser General Public License for more details. <br>
029 * <br>
030 *          You should have received a copy of the GNU Lesser General Public
031 *          License along with this library; if not see
032 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
033 */
034public class StudentRandomOrder implements StudentOrder {
035
036    public StudentRandomOrder(DataProperties config) {
037    }
038
039    /** Return the given set of students in a random order */
040    @Override
041    public List<Student> order(List<Student> students) {
042        List<Student> ret = new ArrayList<Student>(students);
043        Collections.shuffle(ret);
044        return ret;
045    }
046
047}