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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\Condition\Parser; |
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use Romm\Formz\Configuration\Form\Condition\Activation\ActivationInterface; |
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use Romm\Formz\Service\CacheService; |
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use Romm\Formz\Service\Traits\FacadeInstanceTrait; |
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use TYPO3\CMS\Core\SingletonInterface; |
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/** |
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* Factory class allowing to parse a condition to get an instance of |
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* `ConditionTree`. |
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*/ |
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class ConditionParserFactory implements SingletonInterface |
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{ |
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use FacadeInstanceTrait; |
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/** |
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* @var ConditionTree[] |
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*/ |
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private $trees = []; |
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/** |
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* Will parse a condition expression, to build a tree containing one or |
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* several nodes which represent the condition. See the class |
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* `ConditionTree` for more information. |
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* |
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* @param ActivationInterface $activation |
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* @return ConditionTree |
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*/ |
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public function parse(ActivationInterface $activation) |
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{ |
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$hash = 'condition-tree-' . |
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sha1(serialize([ |
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$activation->getExpression(), |
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$activation->getConditions() |
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])); |
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if (false === array_key_exists($hash, $this->trees)) { |
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$this->trees[$hash] = $this->getConditionTree($hash, $activation); |
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} |
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return $this->trees[$hash]; |
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} |
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/** |
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* @param string $cacheIdentifier |
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* @param ActivationInterface $activation |
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* @return ConditionTree |
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*/ |
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protected function getConditionTree($cacheIdentifier, ActivationInterface $activation) |
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{ |
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$cacheInstance = CacheService::get()->getCacheInstance(); |
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/** @var ConditionTree $instance */ |
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if ($cacheInstance->has($cacheIdentifier)) { |
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$instance = $cacheInstance->get($cacheIdentifier); |
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} else { |
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$instance = $this->buildConditionTree($activation); |
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$cacheInstance->set($cacheIdentifier, $instance); |
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} |
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return $instance; |
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} |
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/** |
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* @param ActivationInterface $activation |
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* @return ConditionTree |
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*/ |
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protected function buildConditionTree(ActivationInterface $activation) |
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{ |
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return ConditionParser::get()->parse($activation); |
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} |
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} |
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romm /
formz
