1: <?php
 2: 
 3: /**
 4:  * Picon Framework
 5:  * http://code.google.com/p/picon-framework/
 6:  *
 7:  * Copyright (C) 2011-2012 Martin Cassidy <martin.cassidy@webquub.com>
 8: 
 9:  * Picon Framework is free software: you can redistribute it and/or modify
10:  * it under the terms of the GNU General Public License as published by
11:  * the Free Software Foundation, either version 3 of the License, or
12:  * (at your option) any later version.
13: 
14:  * Picon Framework is distributed in the hope that it will be useful,
15:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17:  *  General Public License for more details.
18: 
19:  * You should have received a copy of the GNU General Public License
20:  * along with Picon Framework.  If not, see <http://www.gnu.org/licenses/>.
21:  * */
22: 
23: namespace picon;
24: 
25: /**
26:  * Factory for creating data sources from configurations
27:  * 
28:  * @author Martin Cassidy
29:  * @package database/source
30:  */
31: class DataSourceFactory
32: {
33:     private static $drivers = array();
34:     
35:     private function __construct()
36:     {
37:         
38:     }
39:     
40:     public static function getDataSource(DataSourceConfig $config)
41:     {
42:         $driver = self::getDataBaseDriver($config->type);
43:         $connection = $driver->connect($config->host, $config->username, $config->password, $config->database, $config->port);
44: 
45:         return new DataSource($config, $connection, $driver);
46:     }
47:     
48:     private static function getDataBaseDriver(DataSourceType $type)
49:     {
50:         $driverName = $type->__toString();
51:         if(array_key_exists($driverName, self::$drivers))
52:         {
53:             return self::$drivers[$driverName];
54:         }
55:         $className = "\\picon\\".$driverName.'Driver';
56:         if(class_exists($className))
57:         {
58:             self::$drivers[$driverName] = new $className();
59:             return self::$drivers[$driverName];
60:         }
61:         throw new \InvalidArgumentException(sprintf('Database driver %s does not exist', $driverName));
62:     }
63: }
64: 
65: ?>
66: