001    /******************************************************************************
002     * Copyright (C) MActor Developers. All rights reserved.                        *
003     * ---------------------------------------------------------------------------*
004     * This file is part of MActor.                                               *
005     *                                                                            *
006     * MActor is free software; you can redistribute it and/or modify             *
007     * it under the terms of the GNU General Public License as published by       *
008     * the Free Software Foundation; either version 2 of the License, or          *
009     * (at your option) any later version.                                        *
010     *                                                                            *
011     * MActor is distributed in the hope that it will be useful,                  *
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
014     * GNU General Public License for more details.                               *
015     *                                                                            *
016     * You should have received a copy of the GNU General Public License          *
017     * along with MActor; if not, write to the Free Software                      *
018     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA *
019     ******************************************************************************/
020    package org.mactor.framework.data;
021    
022    import org.mactor.framework.MactorException;
023    
024    public class DataProviderFactory {
025            public static final String SQL = "sql";
026            public static final String FILE = "file";
027            public static DataProvider getDataProvider(String dataSource) throws MactorException {
028                    String[] parts = parse(dataSource);
029                    if (FILE.equals(parts[0]))
030                            return new CsvDataProvider(parts[1]);
031                    else if (SQL.equals(parts[0]))
032                            return new SqlDataProvider(parts[1]);
033                    else {
034                            throw new MactorException("Unsupported data source type '" + parts[0] + "'");
035                    }
036            }
037            private static String[] parse(String dataSource) throws MactorException {
038                    if (dataSource == null || dataSource.trim().length() == 0)
039                            throw new MactorException("Unparseable data source string '" + dataSource + "'");
040                    String[] parsed = new String[2];
041                    int split = dataSource.indexOf(":");
042                    if (split < 0 || split + 2 >= dataSource.length())
043                            throw new MactorException("Unparseable data source string '" + dataSource + "'");
044                    parsed[0] = dataSource.substring(0, split);
045                    parsed[1] = dataSource.substring(split + 1, dataSource.length());
046                    return parsed;
047            }
048    }