3 namespace Org\Mxchange\CoreFramework\Factory\Filesystem\Stack;
5 // Import framework stuff
6 use Org\Mxchange\CoreFramework\Factory\ObjectFactory;
7 use Org\Mxchange\CoreFramework\Registry\Registry;
8 use Org\Mxchange\CoreFramework\Stacker\Index\IndexableStack;
14 * A factory class for file-based stack indexes
16 * @author Roland Haeder <webmaster@ship-simu.org>
18 <<<<<<< HEAD:framework/main/classes/factories/index/class_FileStackIndexFactory.php
19 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2017 Core Developer Team
21 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2016 Core Developer Team
22 >>>>>>> Some updates::inc/main/classes/factories/index/class_FileStackIndexFactory.php
23 * @license GNU GPL 3.0 or any newer version
24 * @link http://www.ship-simu.org
26 * This program is free software: you can redistribute it and/or modify
27 * it under the terms of the GNU General Public License as published by
28 * the Free Software Foundation, either version 3 of the License, or
29 * (at your option) any later version.
31 * This program is distributed in the hope that it will be useful,
32 * but WITHOUT ANY WARRANTY; without even the implied warranty of
33 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
34 * GNU General Public License for more details.
36 * You should have received a copy of the GNU General Public License
37 * along with this program. If not, see <http://www.gnu.org/licenses/>.
39 class FileStackIndexFactory extends ObjectFactory {
41 * Protected constructor
45 protected function __construct () {
46 // Call parent constructor
47 parent::__construct(__CLASS__);
51 * Returns a singleton (registry-based) StackableFile instance
53 * @param $infoInstance An instance of a SplFileInfo class
54 * @return $indexInstance An instance of a IndexableStack class
56 public static final function createFileStackIndexInstance (SplFileInfo $infoInstance, $type) {
57 // If there is no handler?
58 if (Registry::getRegistry()->instanceExists($type . '_index')) {
59 // Get handler from registry
60 $indexInstance = Registry::getRegistry()->getInstance($type . '_index');
62 // Get the handler instance
63 $indexInstance = self::createObjectByConfiguredName($type . '_file_stack_index_class', array($infoInstance));
65 // Add check for interface
66 assert($indexInstance instanceof IndexableStack);
68 // Add it to the registry
69 Registry::getRegistry()->addInstance($type . '_index', $indexInstance);
72 // Return the instance
73 return $indexInstance;