application/city/classes/factories/manager/class_ManagerFactory.php

   1 <?php
   2 /**
   3  * A factory class for managers
   4  *
   5  * @author              Roland Haeder <webmaster@ship-simu.org>
   6  * @version             0.0.0
   7  * @copyright   Copyright (c) 2015 City Developer Team
   8  * @license             GNU GPL 3.0 or any newer version
   9  * @link                http://www.ship-simu.org
  10  *
  11  * This program is free software: you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation, either version 3 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  23  */
  24 class ManagerFactory extends ObjectFactory {
  25         /**
  26          * Protected constructor
  27          *
  28          * @return      void
  29          */
  30         protected function __construct () {
  31                 // Call parent constructor
  32                 parent::__construct(__CLASS__);
  33         }
  34
  35         /**
  36          * Returns a singleton (registry-based) ManageableFoo instance
  37          *
  38          * @param       $type                           Type of manager to return
  39          * @return      $managerInstance        An instance of a ManageableFoo class
  40          */
  41         public static final function createManagerByType ($type) {
  42                 // Get new factory instance
  43                 $factoryInstance = new ManagerFactory();
  44
  45                 // Generate key
  46                 $key = $type . '_manager';
  47
  48                 // If there is no handler?
  49                 if (Registry::getRegistry()->instanceExists($key)) {
  50                         // Get handler from registry
  51                         $managerInstance = Registry::getRegistry()->getInstance($key);
  52                 } else {
  53                         // Get the proper manager instance
  54                         $managerInstance = ObjectFactory::createObjectByConfiguredName($key . '_class');
  55
  56                         // Add it to the registry
  57                         Registry::getRegistry()->addInstance($key, $managerInstance);
  58                 }
  59
  60                 // Return the instance
  61                 return $managerInstance;
  62         }
  63 }
  64
  65 // [EOF]
  66 ?>