/*****************************************************************************
 * su4sml --- a SML repository for managing (Secure)UML/OCL models
 *             http://projects.brucker.ch/su4sml/
 *                                                                            
 * IntArrayStore.java --- 
 * This file is part of su4sml.
 *
 * Copyright (c) 2005-2007, ETH Zurich, Switzerland
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
 *
 *     * Neither the name of the copyright holders nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/
/* $Id$ */

package ch.ethz.infsec.jtestdataaccessor.examples;

public class IntArrayStore {

	private int[] array;

	public IntArrayStore(int[] array) {
		this.array = array;
	}

	/**
	 * Use bubblesort to sort an int[]. Taken from
	 * http://de.wikipedia.org/wiki/Bubblesort.
	 * 
	 * @param array
	 *            to sort
	 * @return the sorted array.
	 */
	public int[] getSorted() {
		boolean sorted = true;
		do {
			sorted = true;
			for (int i = 1; i < array.length; i++) {
				if (array[i - 1] > array[i]) {
					swap(i - 1, i);
					sorted = false;
				}
			}
		} while (!sorted);
		return array;
	}

	/**
	 * Use bubblesort to "wrongly" sort an int[].
	 * 
	 * @param array
	 *            to sort
	 * @return the sorted array.
	 * @throws Exception
	 */
	public int[] getInvalidSorted() throws Exception {
		boolean sorted = true;
		do {
			sorted = true;
			for (int i = 1; i < array.length; i++) {
				if (array[i - 1] < array[i]) {
					swap(i - 1, i);
					sorted = false;
				}
			}
		} while (!sorted);
		return array;
	}

	/**
	 * Swap two elements of the array.
	 * 
	 * @param i
	 *            the first element.
	 * @param j
	 *            the second element.
	 */
	private void swap(int i, int j) {
		final int tmp = array[i];
		array[i] = array[j];
		array[j] = tmp;
	}
}