/*
 * Copyright (C) 2008-2015 by Holger Arndt
 *
 * This file is part of the Universal Java Matrix Package (UJMP).
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership and licensing.
 *
 * UJMP is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * UJMP 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with UJMP; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

package org.ujmp.core.objectmatrix.calculation;

import org.ujmp.core.Matrix;

public class Squeeze extends Reshape {
	private static final long serialVersionUID = 6364079287530956244L;

	public Squeeze(Matrix source) {
		super(source, calculateNewSize(source));
	}

	private static long[] calculateNewSize(Matrix source) {
		long[] oldSize = source.getSize();
		int n = 0;
		for (int d = oldSize.length; --d != -1;) {
			if (oldSize[d] > 1) {
				n++;
			}
		}
		long[] newSize = new long[n];
		for (int d = oldSize.length; --d != -1;) {
			if (oldSize[d] > 1) {
				n--;
				newSize[n] = oldSize[d];
			}
		}
		return newSize;
	}

}