framework/main/classes/factories/stacks/class_FileStackFactory.php

   1 <?php
   2 // Own namespace
   3 namespace Org\Mxchange\CoreFramework\Factory\Stack;
   4
   5 // Import framework stuff
   6 use Org\Mxchange\CoreFramework\Bootstrap\FrameworkBootstrap;
   7 use Org\Mxchange\CoreFramework\Factory\BaseFactory;
   8 use Org\Mxchange\CoreFramework\Factory\Object\ObjectFactory;
   9 use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
  10 use Org\Mxchange\CoreFramework\Registry\Object\ObjectRegistry;
  11
  12 // Import SPL stuff
  13 use \InvalidArgumentException;
  14 use \SplFileInfo;
  15
  16 /**
  17  * A factory class for file-based stacks
  18  *
  19  * @author              Roland Haeder <webmaster@ship-simu.org>
  20  * @version             0.0.0
  21  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2023 Core Developer Team
  22  * @license             GNU GPL 3.0 or any newer version
  23  * @link                http://www.ship-simu.org
  24  *
  25  * This program is free software: you can redistribute it and/or modify
  26  * it under the terms of the GNU General Public License as published by
  27  * the Free Software Foundation, either version 3 of the License, or
  28  * (at your option) any later version.
  29  *
  30  * This program is distributed in the hope that it will be useful,
  31  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  32  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  33  * GNU General Public License for more details.
  34  *
  35  * You should have received a copy of the GNU General Public License
  36  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  37  */
  38 class FileStackFactory extends BaseFactory {
  39         /**
  40          * Protected constructor
  41          *
  42          * @return      void
  43          */
  44         private function __construct () {
  45                 // Call parent constructor
  46                 parent::__construct(__CLASS__);
  47         }
  48
  49         /**
  50          * Returns a singleton (registry-based) StackableFile instance
  51          *
  52          * @param       $prefix                         Class prefix
  53          * @param       $stackName                      Name of the stack
  54          * @return      $stackInstance          An instance of a StackableFile class
  55          */
  56         public static final function createFileStackInstance (string $prefix, string $stackName) {
  57                 // Validate parameter
  58                 //* NOISY-DEBUG */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-STACK-FACTORY: prefix=%s,stackName=%s - CALLED!', $prefix, $stackName));
  59                 if (empty($prefix)) {
  60                         // Throw IAE
  61                         throw new InvalidArgumentException('Parameter "prefix" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
  62                 } elseif (empty($stackName)) {
  63                         // Throw it again
  64                         throw new InvalidArgumentException('Paramter "stackName" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
  65                 }
  66
  67                 // Construct file stack name
  68                 $fileInfoInstance = new SplFileInfo(sprintf('%s%s/%s.%s',
  69                         FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('root_base_path'),
  70                         FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('base_file_stacks_path'),
  71                         $stackName,
  72                         FrameworkBootstrap::getConfigurationInstance()->getConfigEntry('file_stacks_extension')
  73                 ));
  74
  75                 // If there is no handler?
  76                 if (ObjectRegistry::getRegistry('factory')->instanceExists($stackName . '_stack')) {
  77                         // Get handler from registry
  78                         $stackInstance = ObjectRegistry::getRegistry('factory')->getInstance($stackName . '_stack');
  79                 } else {
  80                         // Get the handler instance
  81                         $stackInstance = ObjectFactory::createObjectByConfiguredName($prefix . '_' . $stackName . '_stack_class', array($fileInfoInstance, $prefix . '_' . $stackName));
  82
  83                         // Add it to the registry
  84                         ObjectRegistry::getRegistry('factory')->addInstance($stackName . '_stack', $stackInstance);
  85                 }
  86
  87                 // Return the instance
  88                 //* NOISY-DEBUG */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('FILE-STACK-FACTORY: stackInstance=%s - EXIT!', $stackInstance->__toString()));
  89                 return $stackInstance;
  90         }
  91
  92 }