001    /*
002     * Copyright (C) 2008-2010 by Holger Arndt
003     *
004     * This file is part of the Universal Java Matrix Package (UJMP).
005     * See the NOTICE file distributed with this work for additional
006     * information regarding copyright ownership and licensing.
007     *
008     * UJMP is free software; you can redistribute it and/or modify
009     * it under the terms of the GNU Lesser General Public License as
010     * published by the Free Software Foundation; either version 2
011     * of the License, or (at your option) any later version.
012     *
013     * UJMP is distributed in the hope that it will be useful,
014     * but WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016     * GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public
019     * License along with UJMP; if not, write to the
020     * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
021     * Boston, MA  02110-1301  USA
022     */
023    
024    package org.ujmp.core.objectmatrix.calculation;
025    
026    import org.ujmp.core.Matrix;
027    import org.ujmp.core.MatrixFactory;
028    import org.ujmp.core.enums.ValueType;
029    import org.ujmp.core.exceptions.MatrixException;
030    
031    public class Fill extends AbstractObjectCalculation {
032            private static final long serialVersionUID = -3477957135967841340L;
033    
034            private Object fill = null;
035    
036            public Fill(Matrix matrix, Object value) {
037                    super(matrix);
038                    this.fill = value;
039            }
040    
041            
042            public Object getObject(long... coordinates) {
043                    return fill;
044            }
045    
046            public static Matrix calc(Matrix source, Object fill) throws MatrixException {
047                    Matrix ret = MatrixFactory.zeros(source.getValueType(), source.getSize());
048                    for (long[] c : source.allCoordinates()) {
049                            ret.setAsObject(fill, c);
050                    }
051                    return ret;
052            }
053    
054            public static Matrix calc(Object fill, long... size) throws MatrixException {
055                    Matrix ret = null;
056                    if (fill instanceof Number) {
057                            ret = MatrixFactory.zeros(ValueType.DOUBLE, size);
058                    } else if (fill instanceof String) {
059                            ret = MatrixFactory.zeros(ValueType.STRING, size);
060                    } else {
061                            ret = MatrixFactory.zeros(ValueType.OBJECT, size);
062                    }
063                    for (long[] c : ret.allCoordinates()) {
064                            ret.setAsObject(fill, c);
065                    }
066                    return ret;
067            }
068    }