9.5/_text_extractor_registry_8php_source.html

<?php

namespace ‪TYPO3\CMS\Core\Resource\TextExtraction;


/*

 * 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!

 */


use ‪TYPO3\CMS\Core\Resource\FileInterface;

use ‪TYPO3\CMS\Core\SingletonInterface;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪TextExtractorRegistry implements ‪SingletonInterface

{

    protected ‪$textExtractorClasses = [];


    protected ‪$instances = [];


    public static function ‪getInstance()

    {

        return GeneralUtility::makeInstance(__CLASS__);

    }


    public function ‪registerTextExtractor($className)

    {

        if (!class_exists($className)) {

            throw new \InvalidArgumentException('The class "' . $className . '" you are trying to register is not available', 1422906893);

        }


        if (!in_array(TextExtractorInterface::class, class_implements($className), true)) {

            throw new \InvalidArgumentException($className . ' must implement interface' . TextExtractorInterface::class, 1422771427);

        }


        $this->textExtractorClasses[] = $className;

    }


    public function ‪getTextExtractorInstances()

    {

        if (empty($this->instances) && !empty($this->textExtractorClasses)) {

            foreach ($this->textExtractorClasses as $className) {

                $object = $this->‪createTextExtractorInstance($className);

                $this->instances[] = $object;

            }

        }


        return ‪$this->instances;

    }


    protected function ‪createTextExtractorInstance($className)

    {

        return GeneralUtility::makeInstance($className);

    }


    public function ‪getTextExtractor(‪FileInterface $file)

    {

        foreach ($this->‪getTextExtractorInstances() as $textExtractor) {

            if ($textExtractor->canExtractText($file)) {

                return $textExtractor;

            }

        }


        return null;

    }

}