114 lines
2.9 KiB
PHP
114 lines
2.9 KiB
PHP
<?php
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namespace WapplerSystems\Meilisearch\System\Object;
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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use TYPO3\CMS\Core\SingletonInterface;
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use TYPO3\CMS\Extbase\Object\ObjectManagerInterface;
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/**
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* Abstract class to hold the logic to register and retrieve different classes
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* for a specific key.
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*
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* Can be used to retrieve different "strategies" for the same thing.
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*
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* @author Timo Hund <timo.hund@dkd.de>
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*/
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class AbstractClassRegistry implements SingletonInterface
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{
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/**
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* Holds the mapping key => className
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* @var array
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*/
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protected $classMap = [];
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/**
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* Name for the default implementation
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*
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* @var string
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*/
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protected $defaultClass = \stdClass::class;
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/**
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* @var ObjectManagerInterface
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*/
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protected $objectManager;
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/**
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* @param ObjectManagerInterface $objectManager
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*/
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public function injectObjectManager(ObjectManagerInterface $objectManager)
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{
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$this->objectManager = $objectManager;
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}
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/**
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* Retrieves an instance for an registered type.
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*
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* @param string $type
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* @return object
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*/
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public function getInstance($type)
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{
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$className = $this->resolveClassName($type);
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return $this->createInstance($className);
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}
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/**
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* @param string $type
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* @return string
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*/
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protected function resolveClassName($type)
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{
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$className = $this->defaultClass;
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if (isset($this->classMap[$type])) {
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$className = $this->classMap[$type];
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return $className;
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}
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return $className;
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}
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/**
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* Create an instance of a certain class
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*
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* @param string $className
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* @return object
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*/
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protected function createInstance($className)
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{
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return $this->objectManager->get($className);
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}
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/**
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* Can be used to register an implementation in the classMap.
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*
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* @param string $className
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* @param string $type
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* @param string $requiredBaseClass
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*/
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protected function register($className, $type, $requiredBaseClass) {
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// check if the class is available for TYPO3 before registering the driver
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if (!class_exists($className)) {
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throw new \InvalidArgumentException('Class ' . $className . ' does not exist.', 1462883324);
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}
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if (!is_subclass_of($className, $requiredBaseClass)) {
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throw new \InvalidArgumentException('Parser ' . $className . ' needs to extend the ' . $requiredBaseClass . '.', 1462883325);
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}
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$this->classMap[$type] = $className;
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}
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}
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