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<?php |
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/** |
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* TechDivision\Import\Callbacks\CallbackVisitor |
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* |
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* NOTICE OF LICENSE |
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* |
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* This source file is subject to the Open Software License (OSL 3.0) |
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* that is available through the world-wide-web at this URL: |
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* http://opensource.org/licenses/osl-3.0.php |
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* |
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* PHP version 5 |
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* |
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* @author Tim Wagner <[email protected]> |
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* @copyright 2016 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link https://github.com/techdivision/import |
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* @link http://www.techdivision.com |
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*/ |
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namespace TechDivision\Import\Callbacks; |
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use TechDivision\Import\Subjects\SubjectInterface; |
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use Symfony\Component\DependencyInjection\TaggedContainerInterface; |
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/** |
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* Visitor implementation for a subject's callbacks. |
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* |
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* @author Tim Wagner <[email protected]> |
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* @copyright 2016 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link https://github.com/techdivision/import |
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* @link http://www.techdivision.com |
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*/ |
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class CallbackVisitor implements CallbackVisitorInterface |
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{ |
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/** |
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* The DI container builder instance. |
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* |
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* @var \Symfony\Component\DependencyInjection\TaggedContainerInterface |
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*/ |
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protected $container; |
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/** |
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* The constructor to initialize the instance. |
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* |
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* @param \Symfony\Component\DependencyInjection\TaggedContainerInterface $container The container instance |
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*/ |
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public function __construct(TaggedContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Visitor implementation that initializes the observers of the passed subject. |
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* |
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* @param \TechDivision\Import\Subjects\SubjectInterface $subject The subject to initialize the observers for |
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* |
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* @return void |
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*/ |
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public function visit(SubjectInterface $subject) |
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{ |
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// load the callback mappings |
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$callbackMappings = $subject->getCallbackMappings(); |
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// prepare the callbacks |
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foreach ($callbackMappings as $type => $callbacks) { |
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$this->prepareCallbacks($subject, $callbacks, $type); |
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} |
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} |
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/** |
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* Prepare the callbacks defined in the system configuration. |
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* |
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* @param \TechDivision\Import\Subjects\SubjectInterface $subject The subject to prepare the callbacks for |
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* @param array $callbacks The array with the callbacks |
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* @param string $type The actual callback type |
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* |
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* @return void |
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*/ |
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View Code Duplication |
protected function prepareCallbacks(SubjectInterface $subject, array $callbacks, $type = null) |
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{ |
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// iterate over the array with callbacks and prepare them |
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foreach ($callbacks as $key => $callback) { |
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// we have to initialize the type only on the first level |
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if ($type == null) { |
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$type = $key; |
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} |
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// query whether or not we've an subarry or not |
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if (is_array($callback)) { |
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$this->prepareCallbacks($subject, $callback, $type); |
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} else { |
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// create the instance of the callback/factory |
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$instance = $this->container->get($callback); |
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// query whether or not a factory has been specified |
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if ($instance instanceof CallbackFactoryInterface) { |
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$subject->registerCallback($instance->createCallback($subject), $type); |
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} elseif ($instance instanceof CallbackInterface) { |
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$subject->registerCallback($instance, $type); |
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} else { |
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throw new \InvalidArgumentException( |
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sprintf( |
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'Instance of "%s" doesn\'t implement interface "%s" or "%s"', |
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$callback, |
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CallbackFactoryInterface::class, |
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CallbackInterface::class |
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) |
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); |
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} |
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} |
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} |
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} |
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} |
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techdivision /
import
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.