1 <?php

     2 /**

     3  * @category   Zend

     4  * @package    Zend_Cloud

     5  * @subpackage Infrastructure

     6  * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

     7  * @license    http://framework.zend.com/license/new-bsd     New BSD License

     8  */

     9 

    10 require_once 'Zend/Cloud/AbstractFactory.php';

    11 

    12 

    13 /**

    14  * Factory for infrastructure adapters

    15  * 

    16  * @package    Zend_Cloud

    17  * @subpackage Infrastructure

    18  * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

    19  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    20  */

    21 class Zend_Cloud_Infrastructure_Factory extends Zend_Cloud_AbstractFactory

    22 {

    23     const INFRASTRUCTURE_ADAPTER_KEY = 'infrastructure_adapter';

    24 

    25     /**

    26      * @var string Interface which adapter must implement to be considered valid

    27      */

    28     protected static $_adapterInterface = 'Zend_Cloud_Infrastructure_Adapter';

    29 

    30     /**

    31      * Constructor

    32      *

    33      * Private ctor - should not be used

    34      *

    35      * @return void

    36      */

    37     private function __construct()

    38     {

    39     }

    40 

    41     /**

    42      * Retrieve an adapter instance

    43      *

    44      * @param  array $options

    45      * @return void

    46      */

    47     public static function getAdapter($options = array())

    48     {

    49         $adapter = parent::_getAdapter(self::INFRASTRUCTURE_ADAPTER_KEY, $options);

    50 

    51         if (!$adapter) {

    52             require_once 'Zend/Cloud/Infrastructure/Exception.php';

    53             throw new Zend_Cloud_Infrastructure_Exception(sprintf(

    54                 'Class must be specified using the "%s" key',

    55                 self::INFRASTRUCTURE_ADAPTER_KEY

    56             ));

    57         } elseif (!$adapter instanceof self::$_adapterInterface) {

    58             require_once 'Zend/Cloud/Infrastructure/Exception.php';

    59             throw new Zend_Cloud_Infrastructure_Exception(sprintf(

    60                 'Adapter must implement "%s"', self::$_adapterInterface

    61             ));

    62         }

    63         return $adapter;

    64     }

    65 }