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<?php |
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/* |
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* 2017 Romain CANON <[email protected]> |
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* |
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* This file is part of the TYPO3 Formz project. |
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* It is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License, either |
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* version 3 of the License, or any later version. |
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* |
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* For the full copyright and license information, see: |
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* http://www.gnu.org/licenses/gpl-3.0.html |
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*/ |
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namespace Romm\Formz\Service; |
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use Romm\Formz\Core\Core; |
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use Romm\Formz\Service\Traits\ExtendedFacadeInstanceTrait; |
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use TYPO3\CMS\Core\Cache\Backend\AbstractBackend; |
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use TYPO3\CMS\Core\Cache\CacheManager; |
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use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface; |
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use TYPO3\CMS\Core\SingletonInterface; |
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class CacheService implements SingletonInterface |
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{ |
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use ExtendedFacadeInstanceTrait; |
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const CACHE_IDENTIFIER = 'cache_formz'; |
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/** |
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* @var TypoScriptService |
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*/ |
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protected $typoScriptService; |
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/** |
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* @var FrontendInterface |
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*/ |
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protected $cacheInstance; |
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/** |
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* Returns the type of backend cache defined in TypoScript at the path: |
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* `settings.defaultBackendCache`. |
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* |
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* @return string |
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* @throws \Exception |
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*/ |
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public function getBackendCache() |
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{ |
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$backendCache = $this->typoScriptService->getExtensionConfigurationFromPath('settings.defaultBackendCache'); |
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if (false === class_exists($backendCache) |
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&& false === in_array(AbstractBackend::class, class_parents($backendCache)) |
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) { |
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throw new \Exception( |
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'The cache class name given in configuration "config.tx_formz.settings.defaultBackendCache" must inherit "' . AbstractBackend::class . '" (current value: "' . (string)$backendCache . '")', |
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1459251263 |
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); |
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} |
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return $backendCache; |
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} |
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/** |
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* Returns the cache instance for this extension. |
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* |
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* @return FrontendInterface |
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*/ |
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public function getCacheInstance() |
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{ |
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if (null === $this->cacheInstance) { |
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/** @var $cacheManager CacheManager */ |
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$cacheManager = Core::instantiate(CacheManager::class); |
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if ($cacheManager->hasCache(self::CACHE_IDENTIFIER)) { |
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$this->cacheInstance = $cacheManager->getCache(self::CACHE_IDENTIFIER); |
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} |
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} |
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return $this->cacheInstance; |
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} |
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/** |
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* @param FrontendInterface $cacheInstance |
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*/ |
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public function setCacheInstance(FrontendInterface $cacheInstance) |
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{ |
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$this->cacheInstance = $cacheInstance; |
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} |
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/** |
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* Generic cache identifier creation for usages in the extension. |
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* |
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* @param string $string |
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* @param string $formClassName |
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* @param int $maxLength |
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* @return string |
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*/ |
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public function getCacheIdentifier($string, $formClassName, $maxLength = 55) |
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{ |
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$explodedClassName = explode('\\', $formClassName); |
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$identifier = strtolower( |
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$string . |
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end($explodedClassName) . |
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'-' . |
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sha1($formClassName) |
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); |
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return substr($identifier, 0, $maxLength); |
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} |
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/** |
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* @param TypoScriptService $typoScriptService |
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*/ |
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public function injectTypoScriptService(TypoScriptService $typoScriptService) |
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{ |
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$this->typoScriptService = $typoScriptService; |
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} |
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} |
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romm /
formz
