Session.php

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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\Persistence\Generic;
 
use ‪TYPO3\CMS\Core\SingletonInterface;
use ‪TYPO3\CMS\Extbase\Object\Container\Container;
use ‪TYPO3\CMS\Extbase\Persistence\ObjectStorage;
 
class ‪Session implements ‪SingletonInterface
{
    protected ‪$objectContainer;
 
    protected ‪$reconstitutedEntities;
 
    protected ‪$objectMap;
 
    protected ‪$identifierMap = [];
 
    public function ‪__construct(‪Container $container)
    {
        $this->objectContainer = $container;
        $this->reconstitutedEntities = new ‪ObjectStorage();
        $this->objectMap = new ‪ObjectStorage();
    }
 
    public function ‪registerReconstitutedEntity($entity)
    {
        $this->reconstitutedEntities->attach($entity);
    }
 
    public function ‪replaceReconstitutedEntity($oldEntity, $newEntity)
    {
        $this->reconstitutedEntities->detach($oldEntity);
        $this->reconstitutedEntities->attach($newEntity);
    }
 
    public function ‪unregisterReconstitutedEntity($entity)
    {
        if ($this->reconstitutedEntities->contains($entity)) {
            $this->reconstitutedEntities->detach($entity);
        }
    }
 
    public function ‪getReconstitutedEntities()
    {
        return ‪$this->reconstitutedEntities;
    }
 
    public function ‪isReconstitutedEntity($entity)
    {
        return $this->reconstitutedEntities->contains($entity);
    }
 
    // @todo implement the is dirty checking behaviour of the Flow persistence session here
 
    public function ‪hasObject($object)
    {
        return $this->objectMap->contains($object);
    }
 
    public function ‪hasIdentifier($identifier, $className)
    {
        return isset($this->identifierMap[$this->‪getClassIdentifier($className)][$identifier]);
    }
 
    public function ‪getObjectByIdentifier($identifier, $className)
    {
        return $this->identifierMap[$this->‪getClassIdentifier($className)][$identifier];
    }
 
    public function ‪getIdentifierByObject($object)
    {
        if ($this->‪hasObject($object)) {
            return $this->objectMap[$object];
        }
        return null;
    }
 
    public function ‪registerObject($object, $identifier)
    {
        $this->objectMap[$object] = $identifier;
        $this->identifierMap[$this->‪getClassIdentifier(get_class($object))][$identifier] = $object;
    }
 
    public function ‪unregisterObject($object)
    {
        unset($this->identifierMap[$this->‪getClassIdentifier(get_class($object))][$this->objectMap[$object]]);
        $this->objectMap->detach($object);
    }
 
    public function ‪destroy()
    {
        $this->identifierMap = [];
        $this->objectMap = new ObjectStorage();
        $this->reconstitutedEntities = new ObjectStorage();
    }
 
    protected function ‪getClassIdentifier($className): string
    {
        return strtolower($this->objectContainer->getImplementationClassName($className));
    }
}