1: <?php 
 2: 
 3: /**
 4:  *
 5:  * A factory for creating DAO provider implementations that implement the
 6:  * AlphaDAOProviderInterface interface.
 7:  * 
 8:  * @package alpha::model
 9:  * @since 1.1
10:  * @author John Collins <dev@alphaframework.org>
11:  * @version $Id: AlphaDAOProviderFactory.inc 1548 2012-07-29 17:07:07Z alphadevx $
12:  * @license http://www.opensource.org/licenses/bsd-license.php The BSD License
13:  * @copyright Copyright (c) 2012, John Collins (founder of Alpha Framework).  
14:  * All rights reserved.
15:  * 
16:  * <pre>
17:  * Redistribution and use in source and binary forms, with or 
18:  * without modification, are permitted provided that the 
19:  * following conditions are met:
20:  * 
21:  * * Redistributions of source code must retain the above 
22:  *   copyright notice, this list of conditions and the 
23:  *   following disclaimer.
24:  * * Redistributions in binary form must reproduce the above 
25:  *   copyright notice, this list of conditions and the 
26:  *   following disclaimer in the documentation and/or other 
27:  *   materials provided with the distribution.
28:  * * Neither the name of the Alpha Framework nor the names 
29:  *   of its contributors may be used to endorse or promote 
30:  *   products derived from this software without specific 
31:  *   prior written permission.
32:  *   
33:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
34:  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
35:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
36:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
37:  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
38:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
39:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
40:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
41:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
42:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
43:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
44:  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
45:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
46:  * </pre>
47:  *  
48:  */
49: class AlphaDAOProviderFactory {
50:     /**
51:      * Trace logger
52:      * 
53:      * @var Logger
54:      * @since 1.1
55:      */
56:     private static $logger = null;
57:     
58:     /**
59:      * A static method that attempts to return a AlphaDAOProviderInterface instance
60:      * based on the name of the provider class supplied.
61:      * 
62:      * @param $providerName The class name of the provider class, should be in the alpha::model package.
63:      * @param $BO The AlphaDAO instance to pass to the persistance provider for mapping. 
64:      * @throws IllegalArguementException
65:      * @return AlphaDAOProviderInterface
66:      * @since 1.1
67:      */
68:     public static function getInstance($providerName, $BO) {
69:         if(self::$logger == null)
70:             self::$logger = new Logger('AlphaDAOProviderFactory');
71:         
72:         self::$logger->debug('>>getInstance(providerName=['.$providerName.'], BO=['.print_r($BO, true).'])');
73:         
74:         global $config;
75:         
76:         if(file_exists($config->get('app.root').'alpha/model/'.$providerName.'.inc')) {
77:             require_once $config->get('app.root').'alpha/model/'.$providerName.'.inc';
78:             
79:             $instance = new $providerName;
80:             $instance->setBO($BO);
81:             
82:             if(!$instance instanceof AlphaDAOProviderInterface)
83:                 throw new IllegalArguementException('The class ['.$providerName.'] does not implement the expected AlphaDAOProviderInterface interface!');
84:             
85:             self::$logger->debug('<<getInstance: [Object '.$providerName.']');
86:             return $instance;
87:         }else{
88:             throw new IllegalArguementException('The class ['.$providerName.'] is not defined anywhere!');
89:         }
90:         
91:         self::$logger->debug('<<getInstance');
92:     }
93: }
94: 
95: ?>