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<?php
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Extbase\Reflection;
use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
use TYPO3\CMS\Core\Cache\Frontend\NullFrontend;
use TYPO3\CMS\Core\SingletonInterface;
use TYPO3\CMS\Extbase\Reflection\Exception\UnknownClassException;
/**
* Reflection service for acquiring reflection based information.
* Originally based on the TYPO3.Flow reflection service.
*/
class ReflectionService implements SingletonInterface
{
private string $cacheIdentifier;
/**
* @var FrontendInterface
*/
protected $dataCache;
/**
* Indicates whether the Reflection cache needs to be updated.
*
* This flag needs to be set as soon as new Reflection information was
* created.
*
* @var bool
*/
protected $dataCacheNeedsUpdate = false;
/**
* Local cache for Class schemata
*
* @var array
*/
protected $classSchemata = [];
public function __construct(FrontendInterface $cache, string $cacheIdentifier)
{
$this->dataCache = $cache;
$this->cacheIdentifier = $cacheIdentifier;
if (($classSchemata = $this->dataCache->get($this->cacheIdentifier)) !== false) {
$this->classSchemata = $classSchemata;
}
}
public function __destruct()
{
if ($this->dataCacheNeedsUpdate) {
$this->dataCache->set($this->cacheIdentifier, $this->classSchemata);
}
}
/**
* Returns the class schema for the given class
*
* @param mixed $classNameOrObject The class name or an object
* @throws \TYPO3\CMS\Extbase\Reflection\Exception\UnknownClassException
*/
public function getClassSchema($classNameOrObject): ClassSchema
{
$className = is_object($classNameOrObject) ? get_class($classNameOrObject) : $classNameOrObject;
if (isset($this->classSchemata[$className])) {
return $this->classSchemata[$className];
}
return $this->buildClassSchema($className);
}
/**
* Builds class schemata from classes annotated as entities or value objects
*
* @param string $className
* @throws Exception\UnknownClassException
* @return ClassSchema The class schema
*/
protected function buildClassSchema($className): ClassSchema
{
try {
$classSchema = new ClassSchema($className);
} catch (\ReflectionException $e) {
throw new UnknownClassException($e->getMessage() . '. Reflection failed.', 1278450972, $e);
}
$this->classSchemata[$className] = $classSchema;
$this->dataCacheNeedsUpdate = true;
return $classSchema;
}
/**
* @internal
*/
public function __sleep(): array
{
return [];
}
/**
* @internal
*/
public function __wakeup(): void
{
$this->dataCache = new NullFrontend('extbase');
$this->dataCacheNeedsUpdate = false;
$this->cacheIdentifier = '';
$this->classSchemata = [];
}
}