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.util;
025    
026    import org.ujmp.core.mapmatrix.MapMatrix;
027    
028    public abstract class CommandLineUtil {
029    
030            public static final void parse(MapMatrix<String, Object> matrix, String... args) {
031                    for (String s : args) {
032                            if (s != null) {
033                                    if (s.startsWith("--")) {
034                                            addArgument(matrix, s.replaceFirst("--", ""));
035                                    } else if (s.startsWith("-")) {
036                                            addArgument(matrix, s.replaceFirst("-", ""));
037                                    } else {
038                                            matrix.put("name", s);
039                                    }
040                            }
041                    }
042            }
043    
044            private static void addArgument(MapMatrix<String, Object> matrix, String s) {
045                    if (s.contains("=")) {
046                            String[] keyValue = s.split("=");
047                            String key = keyValue[0];
048                            String value = keyValue[1];
049                            addKeyValue(matrix, key, value);
050                    } else {
051                            addKeyValue(matrix, s, true);
052                    }
053            }
054    
055            private static void addKeyValue(MapMatrix<String, Object> matrix, String key, Object value) {
056                    for (String k : matrix.keySet()) {
057                            if (k.equalsIgnoreCase(key)) {
058                                    matrix.put(k, value);
059                                    break;
060                            }
061                    }
062            }
063    
064            public static final void printOptions(MapMatrix<String, Object> config) {
065                    for (String s : config.keySet()) {
066                            System.out.println(StringUtil.pad("--" + s, 20) + " (default: " + config.get(s) + ")");
067                    }
068            }
069    }