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<?php |
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namespace JK\Sam\Filter; |
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use JK\Sam\Configuration\ConfigurationInterface; |
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use JK\Sam\Event\NotificationEvent; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface; |
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use Symfony\Component\Filesystem\Filesystem; |
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use Symfony\Component\Finder\Finder; |
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use SplFileInfo; |
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abstract class Filter implements FilterInterface |
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{ |
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/** |
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* Filter's name |
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* |
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* @var string |
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*/ |
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protected $name; |
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/** |
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* Filter's configuration |
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* |
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* @var ConfigurationInterface |
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*/ |
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protected $configuration; |
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/** |
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* Notification dispatcher |
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* |
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* @var EventDispatcherInterface |
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*/ |
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protected $eventDispatcher; |
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/** |
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* Apply a filter to a list of source files |
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* |
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* @param SplFileInfo[] $files |
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* @param SplFileInfo[] $destinations |
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* @return SplFileInfo[] |
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*/ |
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abstract public function run(array $files, array $destinations); |
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/** |
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* Filter constructor. |
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* |
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* @param string $name |
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* @param ConfigurationInterface $configuration |
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* @param EventDispatcherInterface $eventDispatcher |
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*/ |
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public function __construct( |
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$name, |
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ConfigurationInterface $configuration, |
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EventDispatcherInterface $eventDispatcher |
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) { |
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$this->name = $name; |
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$this->configuration = $configuration; |
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$this->eventDispatcher = $eventDispatcher; |
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} |
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/** |
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* Use this method to check your filter requirements (for example, if the library required by this filter are |
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* installed). |
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*/ |
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public function checkRequirements() |
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{ |
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} |
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/** |
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* Remove the assets cache directory. |
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*/ |
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public function clean() |
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{ |
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if (file_exists($this->getCacheDir())) { |
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$fileSystem = new Filesystem(); |
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$fileSystem->remove($this->getCacheDir()); |
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} |
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} |
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/** |
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* Return the assets cache dir. |
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* |
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* @return string |
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*/ |
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public function getCacheDir() |
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{ |
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return 'var/cache/assets/'.$this->name.'/'; |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return $this->name; |
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} |
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/** |
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* Return files matching $pattern in filters cache directory. |
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* |
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* @param string $pattern |
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* @return Finder|SplFileInfo[] |
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*/ |
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protected function findFilesInCacheDir($pattern) |
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{ |
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$finder = new Finder(); |
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return $finder |
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->name($pattern) |
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->in($this->getCacheDir()); |
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} |
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/** |
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* Add a notification to the subscriber. |
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* |
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* @param $message |
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*/ |
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protected function addNotification($message) |
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{ |
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$event = new NotificationEvent(); |
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$event->setMessage($message); |
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$this |
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->eventDispatcher |
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->dispatch(NotificationEvent::NAME, $event); |
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} |
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} |
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johnkrovitch /
Sam
