Romm\Formz\Form\Service\FormObjectHash

Complexity

Total Complexity

9

Size/Duplication

Total Lines	101
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	3

Importance

Changes	1
Bugs	0	Features	0

8 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
A	getHash()	0	8	2
A	resetHash()	0	4	1
A	getFormIdentifierHash()	0	4	1
A	getFormIdentifierObject()	0	6	1
A	calculateHash()	0	4	1
A	__wakeup()	0	4	1
A	__sleep()	0	7	1

<?php
/*
 * 2017 Romain CANON <romain.hydrocanon@gmail.com>
 *
 * This file is part of the TYPO3 FormZ project.
 * It is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License, either
 * version 3 of the License, or any later version.
 *
 * For the full copyright and license information, see:
 * http://www.gnu.org/licenses/gpl-3.0.html
 */

namespace Romm\Formz\Form\Service;

use Romm\Formz\Core\Core;
use Romm\Formz\Form\FormObject;
use Romm\Formz\Form\Service\DataObject\FormIdentifierObject;
use Romm\Formz\Service\HashService;

class FormObjectHash
{
    /**
     * @var FormObject
     */
    protected $formObject;

    /**
     * @var string
     */
    protected $hash;

    /**
     * @var FormIdentifierObject
     */
    protected $identifierObject;

    /**
     * @param FormObject $formObject
     */
    public function __construct(FormObject $formObject)
    {
        $this->formObject = $formObject;
        $this->identifierObject = Core::instantiate(FormIdentifierObject::class, $formObject);
    }

    /**
     * Returns the hash of the form object, which should be calculated only once
     * for performance concerns.
     *
     * @return string
     */
    public function getHash()
    {
        if (null === $this->hash) {
            $this->hash = $this->calculateHash();
        }

        return $this->hash;
    }

    /**
     * Resets the hash, which will be calculated on next access.
     */
    public function resetHash()
    {
        $this->hash = null;
    }

    /**
     * @see \Romm\Formz\Form\FormObject::getFormIdentifierHash()
     *
     * @return string
     */
    public function getFormIdentifierHash()
    {
       return $this->identifierObject->getIdentifierHash();
    }

    /**
     * @see \Romm\Formz\Form\FormObject::getFormIdentifierObject()
     *
     * @param string $identifier
     * @return FormIdentifierObject
     */
    public function getFormIdentifierObject($identifier)
    {
        $this->identifierObject->analyzeIdentifierHash($identifier);

        return $this->identifierObject;
    }

    /**
     * Returns the calculated hash of the form object.
     *
     * @return string
     */
    protected function calculateHash()
    {
        return HashService::get()->getHash(serialize($this->formObject));
    }

    /**
     * Injects external dependencies.
     */
    public function __wakeup()
    {
        $this->identifierObject = Core::instantiate(FormIdentifierObject::class, $this->formObject);
    }

    /**
     * @return array
     */
    public function __sleep()
    {
        $properties = get_object_vars($this);
        unset($properties['identifierObject']);

        return array_keys($properties);
    }
}