eventdispatcher stage all
This commit is contained in:
kremsy
parent
3d7cddccd5
commit
86d3803993
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@ -0,0 +1,320 @@
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\EventDispatcher\Debug;
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use Symfony\Component\EventDispatcher\EventDispatcherInterface;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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use Symfony\Component\EventDispatcher\Event;
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use Symfony\Component\Stopwatch\Stopwatch;
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use Psr\Log\LoggerInterface;
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/**
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* Collects some data about event listeners.
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*
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* This event dispatcher delegates the dispatching to another one.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class TraceableEventDispatcher implements TraceableEventDispatcherInterface
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{
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protected $logger;
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protected $stopwatch;
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private $called;
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private $dispatcher;
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/**
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* Constructor.
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*
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* @param EventDispatcherInterface $dispatcher An EventDispatcherInterface instance
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* @param Stopwatch $stopwatch A Stopwatch instance
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* @param LoggerInterface $logger A LoggerInterface instance
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*/
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public function __construct(EventDispatcherInterface $dispatcher, Stopwatch $stopwatch, LoggerInterface $logger = null)
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{
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$this->dispatcher = $dispatcher;
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$this->stopwatch = $stopwatch;
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$this->logger = $logger;
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$this->called = array();
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}
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/**
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* {@inheritdoc}
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*/
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public function addListener($eventName, $listener, $priority = 0)
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{
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$this->dispatcher->addListener($eventName, $listener, $priority);
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}
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/**
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* {@inheritdoc}
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*/
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public function addSubscriber(EventSubscriberInterface $subscriber)
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{
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$this->dispatcher->addSubscriber($subscriber);
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}
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/**
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* {@inheritdoc}
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*/
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public function removeListener($eventName, $listener)
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{
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return $this->dispatcher->removeListener($eventName, $listener);
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}
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/**
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* {@inheritdoc}
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*/
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public function removeSubscriber(EventSubscriberInterface $subscriber)
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{
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return $this->dispatcher->removeSubscriber($subscriber);
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}
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/**
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* {@inheritdoc}
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*/
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public function getListeners($eventName = null)
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{
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return $this->dispatcher->getListeners($eventName);
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}
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/**
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* {@inheritdoc}
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*/
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public function hasListeners($eventName = null)
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{
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return $this->dispatcher->hasListeners($eventName);
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}
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/**
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* {@inheritdoc}
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*/
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public function dispatch($eventName, Event $event = null)
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{
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if (null === $event) {
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$event = new Event();
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}
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$this->preProcess($eventName);
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$this->preDispatch($eventName, $event);
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$e = $this->stopwatch->start($eventName, 'section');
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$this->dispatcher->dispatch($eventName, $event);
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if ($e->isStarted()) {
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$e->stop();
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}
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$this->postDispatch($eventName, $event);
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$this->postProcess($eventName);
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return $event;
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}
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/**
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* {@inheritdoc}
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*/
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public function getCalledListeners()
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{
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$called = array();
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foreach ($this->called as $eventName => $listeners) {
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foreach ($listeners as $listener) {
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$info = $this->getListenerInfo($listener->getWrappedListener(), $eventName);
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$called[$eventName.'.'.$info['pretty']] = $info;
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}
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}
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return $called;
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}
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/**
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* {@inheritdoc}
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*/
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public function getNotCalledListeners()
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{
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try {
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$allListeners = $this->getListeners();
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} catch (\Exception $e) {
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if (null !== $this->logger) {
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$this->logger->info(sprintf('An exception was thrown while getting the uncalled listeners (%s)', $e->getMessage()), array('exception' => $e));
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}
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// unable to retrieve the uncalled listeners
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return array();
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}
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$notCalled = array();
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foreach ($allListeners as $eventName => $listeners) {
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foreach ($listeners as $listener) {
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$called = false;
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if (isset($this->called[$eventName])) {
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foreach ($this->called[$eventName] as $l) {
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if ($l->getWrappedListener() === $listener) {
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$called = true;
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break;
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}
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}
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}
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if (!$called) {
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$info = $this->getListenerInfo($listener, $eventName);
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$notCalled[$eventName.'.'.$info['pretty']] = $info;
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}
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}
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}
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return $notCalled;
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}
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/**
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* Proxies all method calls to the original event dispatcher.
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*
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* @param string $method The method name
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* @param array $arguments The method arguments
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*
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* @return mixed
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*/
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public function __call($method, $arguments)
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{
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return call_user_func_array(array($this->dispatcher, $method), $arguments);
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}
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/**
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* Called before dispatching the event.
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*
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* @param string $eventName The event name
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* @param Event $event The event
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*/
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protected function preDispatch($eventName, Event $event)
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{
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}
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/**
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* Called after dispatching the event.
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*
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* @param string $eventName The event name
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* @param Event $event The event
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*/
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protected function postDispatch($eventName, Event $event)
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{
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}
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private function preProcess($eventName)
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{
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foreach ($this->dispatcher->getListeners($eventName) as $listener) {
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$this->dispatcher->removeListener($eventName, $listener);
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$info = $this->getListenerInfo($listener, $eventName);
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$name = isset($info['class']) ? $info['class'] : $info['type'];
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$this->dispatcher->addListener($eventName, new WrappedListener($listener, $name, $this->stopwatch));
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}
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}
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private function postProcess($eventName)
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{
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$skipped = false;
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foreach ($this->dispatcher->getListeners($eventName) as $listener) {
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if (!$listener instanceof WrappedListener) { // #12845: a new listener was added during dispatch.
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continue;
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}
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// Unwrap listener
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$this->dispatcher->removeListener($eventName, $listener);
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$this->dispatcher->addListener($eventName, $listener->getWrappedListener());
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$info = $this->getListenerInfo($listener->getWrappedListener(), $eventName);
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if ($listener->wasCalled()) {
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if (null !== $this->logger) {
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$this->logger->debug(sprintf('Notified event "%s" to listener "%s".', $eventName, $info['pretty']));
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}
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if (!isset($this->called[$eventName])) {
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$this->called[$eventName] = new \SplObjectStorage();
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}
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$this->called[$eventName]->attach($listener);
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}
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if (null !== $this->logger && $skipped) {
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$this->logger->debug(sprintf('Listener "%s" was not called for event "%s".', $info['pretty'], $eventName));
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}
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if ($listener->stoppedPropagation()) {
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if (null !== $this->logger) {
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$this->logger->debug(sprintf('Listener "%s" stopped propagation of the event "%s".', $info['pretty'], $eventName));
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}
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$skipped = true;
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}
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}
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}
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/**
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* Returns information about the listener
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*
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* @param object $listener The listener
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* @param string $eventName The event name
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*
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* @return array Information about the listener
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*/
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private function getListenerInfo($listener, $eventName)
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{
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$info = array(
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'event' => $eventName,
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);
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if ($listener instanceof \Closure) {
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$info += array(
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'type' => 'Closure',
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'pretty' => 'closure',
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);
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} elseif (is_string($listener)) {
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try {
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$r = new \ReflectionFunction($listener);
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$file = $r->getFileName();
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$line = $r->getStartLine();
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} catch (\ReflectionException $e) {
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$file = null;
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$line = null;
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}
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$info += array(
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'type' => 'Function',
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'function' => $listener,
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'file' => $file,
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'line' => $line,
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'pretty' => $listener,
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);
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} elseif (is_array($listener) || (is_object($listener) && is_callable($listener))) {
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if (!is_array($listener)) {
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$listener = array($listener, '__invoke');
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}
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$class = is_object($listener[0]) ? get_class($listener[0]) : $listener[0];
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try {
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$r = new \ReflectionMethod($class, $listener[1]);
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$file = $r->getFileName();
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$line = $r->getStartLine();
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} catch (\ReflectionException $e) {
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$file = null;
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$line = null;
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}
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$info += array(
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'type' => 'Method',
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'class' => $class,
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'method' => $listener[1],
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'file' => $file,
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'line' => $line,
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'pretty' => $class.'::'.$listener[1],
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);
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}
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return $info;
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}
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}
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@ -0,0 +1,106 @@
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\EventDispatcher\DependencyInjection;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
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/**
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* Compiler pass to register tagged services for an event dispatcher.
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*/
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class RegisterListenersPass implements CompilerPassInterface
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{
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/**
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* @var string
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*/
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protected $dispatcherService;
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/**
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* @var string
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*/
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protected $listenerTag;
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/**
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* @var string
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*/
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protected $subscriberTag;
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/**
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* Constructor.
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*
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* @param string $dispatcherService Service name of the event dispatcher in processed container
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* @param string $listenerTag Tag name used for listener
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* @param string $subscriberTag Tag name used for subscribers
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*/
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public function __construct($dispatcherService = 'event_dispatcher', $listenerTag = 'kernel.event_listener', $subscriberTag = 'kernel.event_subscriber')
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{
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$this->dispatcherService = $dispatcherService;
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$this->listenerTag = $listenerTag;
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$this->subscriberTag = $subscriberTag;
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}
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public function process(ContainerBuilder $container)
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{
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if (!$container->hasDefinition($this->dispatcherService) && !$container->hasAlias($this->dispatcherService)) {
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return;
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}
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$definition = $container->findDefinition($this->dispatcherService);
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foreach ($container->findTaggedServiceIds($this->listenerTag) as $id => $events) {
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$def = $container->getDefinition($id);
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if (!$def->isPublic()) {
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throw new \InvalidArgumentException(sprintf('The service "%s" must be public as event listeners are lazy-loaded.', $id));
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}
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if ($def->isAbstract()) {
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throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as event listeners are lazy-loaded.', $id));
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}
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foreach ($events as $event) {
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$priority = isset($event['priority']) ? $event['priority'] : 0;
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if (!isset($event['event'])) {
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throw new \InvalidArgumentException(sprintf('Service "%s" must define the "event" attribute on "%s" tags.', $id, $this->listenerTag));
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}
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if (!isset($event['method'])) {
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$event['method'] = 'on'.preg_replace_callback(array(
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'/(?<=\b)[a-z]/i',
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'/[^a-z0-9]/i',
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), function ($matches) { return strtoupper($matches[0]); }, $event['event']);
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$event['method'] = preg_replace('/[^a-z0-9]/i', '', $event['method']);
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}
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$definition->addMethodCall('addListenerService', array($event['event'], array($id, $event['method']), $priority));
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}
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}
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foreach ($container->findTaggedServiceIds($this->subscriberTag) as $id => $attributes) {
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$def = $container->getDefinition($id);
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if (!$def->isPublic()) {
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throw new \InvalidArgumentException(sprintf('The service "%s" must be public as event subscribers are lazy-loaded.', $id));
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}
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// We must assume that the class value has been correctly filled, even if the service is created by a factory
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$class = $def->getClass();
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$refClass = new \ReflectionClass($class);
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$interface = 'Symfony\Component\EventDispatcher\EventSubscriberInterface';
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if (!$refClass->implementsInterface($interface)) {
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throw new \InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, $interface));
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}
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$definition->addMethodCall('addSubscriberService', array($id, $class));
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}
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}
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}
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@ -0,0 +1,171 @@
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<?php
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/*
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* This file is part of the Symfony package.
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*
|
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* (c) Fabien Potencier <fabien@symfony.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
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namespace Symfony\Component\EventDispatcher\Tests\Debug;
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use Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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use Symfony\Component\EventDispatcher\EventDispatcher;
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use Symfony\Component\EventDispatcher\Event;
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use Symfony\Component\Stopwatch\Stopwatch;
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class TraceableEventDispatcherTest extends \PHPUnit_Framework_TestCase
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{
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public function testAddRemoveListener()
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{
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$dispatcher = new EventDispatcher();
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$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
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$tdispatcher->addListener('foo', $listener = function () {; });
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$listeners = $dispatcher->getListeners('foo');
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$this->assertCount(1, $listeners);
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$this->assertSame($listener, $listeners[0]);
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$tdispatcher->removeListener('foo', $listener);
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$this->assertCount(0, $dispatcher->getListeners('foo'));
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}
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public function testGetListeners()
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{
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$dispatcher = new EventDispatcher();
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$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
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$tdispatcher->addListener('foo', $listener = function () {; });
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$this->assertSame($dispatcher->getListeners('foo'), $tdispatcher->getListeners('foo'));
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}
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public function testHasListeners()
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{
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$dispatcher = new EventDispatcher();
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$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
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$this->assertFalse($dispatcher->hasListeners('foo'));
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$this->assertFalse($tdispatcher->hasListeners('foo'));
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$tdispatcher->addListener('foo', $listener = function () {; });
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$this->assertTrue($dispatcher->hasListeners('foo'));
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$this->assertTrue($tdispatcher->hasListeners('foo'));
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}
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public function testAddRemoveSubscriber()
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{
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$dispatcher = new EventDispatcher();
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$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
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$subscriber = new EventSubscriber();
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$tdispatcher->addSubscriber($subscriber);
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$listeners = $dispatcher->getListeners('foo');
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$this->assertCount(1, $listeners);
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$this->assertSame(array($subscriber, 'call'), $listeners[0]);
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$tdispatcher->removeSubscriber($subscriber);
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$this->assertCount(0, $dispatcher->getListeners('foo'));
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}
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public function testGetCalledListeners()
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{
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$dispatcher = new EventDispatcher();
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$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
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$tdispatcher->addListener('foo', $listener = function () {; });
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$this->assertEquals(array(), $tdispatcher->getCalledListeners());
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$this->assertEquals(array('foo.closure' => array('event' => 'foo', 'type' => 'Closure', 'pretty' => 'closure')), $tdispatcher->getNotCalledListeners());
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$tdispatcher->dispatch('foo');
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$this->assertEquals(array('foo.closure' => array('event' => 'foo', 'type' => 'Closure', 'pretty' => 'closure')), $tdispatcher->getCalledListeners());
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$this->assertEquals(array(), $tdispatcher->getNotCalledListeners());
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||||
}
|
||||
|
||||
public function testLogger()
|
||||
{
|
||||
$logger = $this->getMock('Psr\Log\LoggerInterface');
|
||||
|
||||
$dispatcher = new EventDispatcher();
|
||||
$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch(), $logger);
|
||||
$tdispatcher->addListener('foo', $listener1 = function () {; });
|
||||
$tdispatcher->addListener('foo', $listener2 = function () {; });
|
||||
|
||||
$logger->expects($this->at(0))->method('debug')->with("Notified event \"foo\" to listener \"closure\".");
|
||||
$logger->expects($this->at(1))->method('debug')->with("Notified event \"foo\" to listener \"closure\".");
|
||||
|
||||
$tdispatcher->dispatch('foo');
|
||||
}
|
||||
|
||||
public function testLoggerWithStoppedEvent()
|
||||
{
|
||||
$logger = $this->getMock('Psr\Log\LoggerInterface');
|
||||
|
||||
$dispatcher = new EventDispatcher();
|
||||
$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch(), $logger);
|
||||
$tdispatcher->addListener('foo', $listener1 = function (Event $event) { $event->stopPropagation(); });
|
||||
$tdispatcher->addListener('foo', $listener2 = function () {; });
|
||||
|
||||
$logger->expects($this->at(0))->method('debug')->with("Notified event \"foo\" to listener \"closure\".");
|
||||
$logger->expects($this->at(1))->method('debug')->with("Listener \"closure\" stopped propagation of the event \"foo\".");
|
||||
$logger->expects($this->at(2))->method('debug')->with("Listener \"closure\" was not called for event \"foo\".");
|
||||
|
||||
$tdispatcher->dispatch('foo');
|
||||
}
|
||||
|
||||
public function testDispatchCallListeners()
|
||||
{
|
||||
$called = array();
|
||||
|
||||
$dispatcher = new EventDispatcher();
|
||||
$tdispatcher = new TraceableEventDispatcher($dispatcher, new Stopwatch());
|
||||
$tdispatcher->addListener('foo', $listener1 = function () use (&$called) { $called[] = 'foo1'; });
|
||||
$tdispatcher->addListener('foo', $listener2 = function () use (&$called) { $called[] = 'foo2'; });
|
||||
|
||||
$tdispatcher->dispatch('foo');
|
||||
|
||||
$this->assertEquals(array('foo1', 'foo2'), $called);
|
||||
}
|
||||
|
||||
public function testDispatchNested()
|
||||
{
|
||||
$dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
|
||||
$loop = 1;
|
||||
$dispatcher->addListener('foo', $listener1 = function () use ($dispatcher, &$loop) {
|
||||
++$loop;
|
||||
if (2 == $loop) {
|
||||
$dispatcher->dispatch('foo');
|
||||
}
|
||||
});
|
||||
|
||||
$dispatcher->dispatch('foo');
|
||||
}
|
||||
|
||||
public function testDispatchReusedEventNested()
|
||||
{
|
||||
$nestedCall = false;
|
||||
$dispatcher = new TraceableEventDispatcher(new EventDispatcher(), new Stopwatch());
|
||||
$dispatcher->addListener('foo', function (Event $e) use ($dispatcher) {
|
||||
$dispatcher->dispatch('bar', $e);
|
||||
});
|
||||
$dispatcher->addListener('bar', function (Event $e) use (&$nestedCall) {
|
||||
$nestedCall = true;
|
||||
});
|
||||
|
||||
$this->assertFalse($nestedCall);
|
||||
$dispatcher->dispatch('foo');
|
||||
$this->assertTrue($nestedCall);
|
||||
}
|
||||
}
|
||||
|
||||
class EventSubscriber implements EventSubscriberInterface
|
||||
{
|
||||
public static function getSubscribedEvents()
|
||||
{
|
||||
return array('foo' => 'call');
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,148 @@
|
|||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Symfony package.
|
||||
*
|
||||
* (c) Fabien Potencier <fabien@symfony.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Symfony\Component\EventDispatcher\Tests\DependencyInjection;
|
||||
|
||||
use Symfony\Component\DependencyInjection\ContainerBuilder;
|
||||
use Symfony\Component\EventDispatcher\DependencyInjection\RegisterListenersPass;
|
||||
|
||||
class RegisterListenersPassTest extends \PHPUnit_Framework_TestCase
|
||||
{
|
||||
/**
|
||||
* Tests that event subscribers not implementing EventSubscriberInterface
|
||||
* trigger an exception.
|
||||
*
|
||||
* @expectedException \InvalidArgumentException
|
||||
*/
|
||||
public function testEventSubscriberWithoutInterface()
|
||||
{
|
||||
// one service, not implementing any interface
|
||||
$services = array(
|
||||
'my_event_subscriber' => array(0 => array()),
|
||||
);
|
||||
|
||||
$definition = $this->getMock('Symfony\Component\DependencyInjection\Definition');
|
||||
$definition->expects($this->atLeastOnce())
|
||||
->method('isPublic')
|
||||
->will($this->returnValue(true));
|
||||
$definition->expects($this->atLeastOnce())
|
||||
->method('getClass')
|
||||
->will($this->returnValue('stdClass'));
|
||||
|
||||
$builder = $this->getMock(
|
||||
'Symfony\Component\DependencyInjection\ContainerBuilder',
|
||||
array('hasDefinition', 'findTaggedServiceIds', 'getDefinition')
|
||||
);
|
||||
$builder->expects($this->any())
|
||||
->method('hasDefinition')
|
||||
->will($this->returnValue(true));
|
||||
|
||||
// We don't test kernel.event_listener here
|
||||
$builder->expects($this->atLeastOnce())
|
||||
->method('findTaggedServiceIds')
|
||||
->will($this->onConsecutiveCalls(array(), $services));
|
||||
|
||||
$builder->expects($this->atLeastOnce())
|
||||
->method('getDefinition')
|
||||
->will($this->returnValue($definition));
|
||||
|
||||
$registerListenersPass = new RegisterListenersPass();
|
||||
$registerListenersPass->process($builder);
|
||||
}
|
||||
|
||||
public function testValidEventSubscriber()
|
||||
{
|
||||
$services = array(
|
||||
'my_event_subscriber' => array(0 => array()),
|
||||
);
|
||||
|
||||
$definition = $this->getMock('Symfony\Component\DependencyInjection\Definition');
|
||||
$definition->expects($this->atLeastOnce())
|
||||
->method('isPublic')
|
||||
->will($this->returnValue(true));
|
||||
$definition->expects($this->atLeastOnce())
|
||||
->method('getClass')
|
||||
->will($this->returnValue('Symfony\Component\EventDispatcher\Tests\DependencyInjection\SubscriberService'));
|
||||
|
||||
$builder = $this->getMock(
|
||||
'Symfony\Component\DependencyInjection\ContainerBuilder',
|
||||
array('hasDefinition', 'findTaggedServiceIds', 'getDefinition', 'findDefinition')
|
||||
);
|
||||
$builder->expects($this->any())
|
||||
->method('hasDefinition')
|
||||
->will($this->returnValue(true));
|
||||
|
||||
// We don't test kernel.event_listener here
|
||||
$builder->expects($this->atLeastOnce())
|
||||
->method('findTaggedServiceIds')
|
||||
->will($this->onConsecutiveCalls(array(), $services));
|
||||
|
||||
$builder->expects($this->atLeastOnce())
|
||||
->method('getDefinition')
|
||||
->will($this->returnValue($definition));
|
||||
|
||||
$builder->expects($this->atLeastOnce())
|
||||
->method('findDefinition')
|
||||
->will($this->returnValue($definition));
|
||||
|
||||
$registerListenersPass = new RegisterListenersPass();
|
||||
$registerListenersPass->process($builder);
|
||||
}
|
||||
|
||||
/**
|
||||
* @expectedException \InvalidArgumentException
|
||||
* @expectedExceptionMessage The service "foo" must be public as event listeners are lazy-loaded.
|
||||
*/
|
||||
public function testPrivateEventListener()
|
||||
{
|
||||
$container = new ContainerBuilder();
|
||||
$container->register('foo', 'stdClass')->setPublic(false)->addTag('kernel.event_listener', array());
|
||||
$container->register('event_dispatcher', 'stdClass');
|
||||
|
||||
$registerListenersPass = new RegisterListenersPass();
|
||||
$registerListenersPass->process($container);
|
||||
}
|
||||
|
||||
/**
|
||||
* @expectedException \InvalidArgumentException
|
||||
* @expectedExceptionMessage The service "foo" must be public as event subscribers are lazy-loaded.
|
||||
*/
|
||||
public function testPrivateEventSubscriber()
|
||||
{
|
||||
$container = new ContainerBuilder();
|
||||
$container->register('foo', 'stdClass')->setPublic(false)->addTag('kernel.event_subscriber', array());
|
||||
$container->register('event_dispatcher', 'stdClass');
|
||||
|
||||
$registerListenersPass = new RegisterListenersPass();
|
||||
$registerListenersPass->process($container);
|
||||
}
|
||||
|
||||
/**
|
||||
* @expectedException \InvalidArgumentException
|
||||
* @expectedExceptionMessage The service "foo" must not be abstract as event listeners are lazy-loaded.
|
||||
*/
|
||||
public function testAbstractEventListener()
|
||||
{
|
||||
$container = new ContainerBuilder();
|
||||
$container->register('foo', 'stdClass')->setAbstract(true)->addTag('kernel.event_listener', array());
|
||||
$container->register('event_dispatcher', 'stdClass');
|
||||
|
||||
$registerListenersPass = new RegisterListenersPass();
|
||||
$registerListenersPass->process($container);
|
||||
}
|
||||
}
|
||||
|
||||
class SubscriberService implements \Symfony\Component\EventDispatcher\EventSubscriberInterface
|
||||
{
|
||||
public static function getSubscribedEvents()
|
||||
{
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user