131 lines
4.2 KiB
PHP
131 lines
4.2 KiB
PHP
<?php
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namespace TYPO3\CMS\Extbase\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\Extbase\Object\Container\Container;
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/**
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* Implementation of the default Extbase Object Manager
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*
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* @template T
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*/
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class ObjectManager implements ObjectManagerInterface
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{
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/**
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* @var \TYPO3\CMS\Extbase\Object\Container\Container
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*/
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protected $objectContainer;
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/**
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* Constructs a new Object Manager
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*/
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public function __construct()
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{
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$this->objectContainer = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\Object\Container\Container::class);
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}
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/**
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* Serialization (sleep) helper.
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*
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* Removes properties of this object from serialization.
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* This action is necessary, since there might be closures used
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* in the accordant content objects (e.g. in FLUIDTEMPLATE) which
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* cannot be serialized. It's fine to reset $this->contentObjects
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* since elements will be recreated and are just a local cache,
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* but not required for runtime logic and behaviour.
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*
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* @see http://forge.typo3.org/issues/36820
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* @return array Names of the properties to be serialized
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* @internal only to be used within Extbase, not part of TYPO3 Core API.
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*/
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public function __sleep()
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{
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// Use get_objects_vars() instead of
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// a much more expensive Reflection:
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$properties = get_object_vars($this);
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unset($properties['objectContainer']);
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return array_keys($properties);
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}
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/**
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* Unserialization (wakeup) helper.
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*
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* Initializes the properties again that have been removed by
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* a call to the __sleep() method on serialization before.
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*
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* @see http://forge.typo3.org/issues/36820
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* @internal only to be used within Extbase, not part of TYPO3 Core API.
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*/
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public function __wakeup()
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{
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$this->__construct();
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}
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/**
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* Returns TRUE if an object with the given name is registered
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*
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* @param string $objectName Name of the object
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* @return bool TRUE if the object has been registered, otherwise FALSE
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* @internal only to be used within Extbase, not part of TYPO3 Core API.
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*/
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public function isRegistered($objectName)
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{
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return class_exists($objectName, true);
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}
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/**
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* Returns a fresh or existing instance of the object specified by $objectName.
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*
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* @param string|class-string<T> $objectName The name of the object to return an instance of
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* @param array $constructorArguments
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* @return object&T The object instance
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*/
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public function get($objectName, ...$constructorArguments)
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{
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if ($objectName === 'DateTime') {
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$instance = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance($objectName, ...$constructorArguments);
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} else {
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$instance = $this->objectContainer->getInstance($objectName, $constructorArguments);
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}
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return $instance;
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}
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/**
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* Returns the scope of the specified object.
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*
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* @param string $objectName The object name
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* @return int One of the Container::SCOPE_ constants
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* @throws \TYPO3\CMS\Extbase\Object\Container\Exception\UnknownObjectException
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*/
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public function getScope($objectName)
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{
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if (!$this->isRegistered($objectName)) {
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throw new \TYPO3\CMS\Extbase\Object\Container\Exception\UnknownObjectException('Object "' . $objectName . '" is not registered.', 1265367590);
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}
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return $this->objectContainer->isSingleton($objectName) ? Container::SCOPE_SINGLETON : Container::SCOPE_PROTOTYPE;
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}
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/**
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* Create an instance of $className without calling its constructor
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*
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* @param string|class-string<T> $className
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* @return object&T
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*/
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public function getEmptyObject($className)
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{
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return $this->objectContainer->getEmptyObject($className);
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}
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}
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