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 }