1 <?php

     2 

     3 /*

     4  * This file is part of SwiftMailer.

     5  * (c) 2004-2009 Chris Corbyn

     6  *

     7  * For the full copyright and license information, please view the LICENSE

     8  * file that was distributed with this source code.

     9  */

    10 

    11 /**

    12  * General utility class in Swift Mailer, not to be instantiated.

    13  * 

    14  * @package Swift

    15  * 

    16  * @author Chris Corbyn

    17  */

    18 abstract class Swift

    19 {

    20   

    21   static $initialized = false;

    22   static $initPath;

    23   

    24   /** Swift Mailer Version number generated during dist release process */

    25   const VERSION = '@SWIFT_VERSION_NUMBER@';

    26   

    27   /**

    28    * Internal autoloader for spl_autoload_register().

    29    * 

    30    * @param string $class

    31    */

    32   public static function autoload($class)

    33   {

    34     //Don't interfere with other autoloaders

    35     if (0 !== strpos($class, 'Swift_'))

    36     {

    37       return;

    38     }

    39 

    40     $path = dirname(__FILE__).'/'.str_replace('_', '/', $class).'.php';

    41 

    42     if (!file_exists($path))

    43     {

    44       return;

    45     }

    46 

    47     if (self::$initPath && !self::$initialized)

    48     {

    49       self::$initialized = true;

    50       require self::$initPath;

    51     }

    52 

    53     require_once $path;

    54   }

    55   

    56   /**

    57    * Configure autoloading using Swift Mailer.

    58    * 

    59    * This is designed to play nicely with other autoloaders.

    60    *

    61    * @param string $initPath The init script to load when autoloading the first Swift class

    62    */

    63   public static function registerAutoload($initPath = null)

    64   {

    65     self::$initPath = $initPath;

    66     spl_autoload_register(array('Swift', 'autoload'));

    67   }

    68   

    69 }