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<?php |
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/** |
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* Async sockets |
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* |
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* @copyright Copyright (c) 2015-2016, Efimov Evgenij <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace AsyncSockets\RequestExecutor; |
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use AsyncSockets\Event\Event; |
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/** |
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* Class CallbackEventHandler |
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*/ |
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class CallbackEventHandler implements \Countable, EventHandlerInterface |
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{ |
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/** |
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* List of callables in this bag indexed by event name |
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* |
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* @var array |
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*/ |
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private $handlers = []; |
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/** |
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* CallbackEventHandler constructor. |
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* |
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* @param array $events Events to handle: [ "eventName" => callable|callable[], ... ] |
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*/ |
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public function __construct(array $events = []) |
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{ |
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$this->handlers = []; |
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$this->addHandler($events); |
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} |
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/** |
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* Add handler into this bag |
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* |
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* @param array $events Events to handle: [ "eventName" => callable|callable[], ... ] |
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* |
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* @return void |
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*/ |
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public function addHandler(array $events) |
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{ |
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foreach ($events as $eventName => $subscriber) { |
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$this->handlers[$eventName] = array_merge( |
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isset($this->handlers[$eventName]) ? $this->handlers[$eventName] : [], |
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is_callable($subscriber) ? [$subscriber] : $subscriber |
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); |
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} |
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} |
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/** |
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* Remove specified handlers from this bag |
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* |
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* @param array $events Events to remove: [ "eventName" => callable|callable[], ... ] |
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* |
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* @return void |
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*/ |
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public function removeHandler(array $events) |
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{ |
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foreach ($events as $eventName => $subscribers) { |
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if (!isset($this->handlers[$eventName])) { |
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continue; |
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} |
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$subscribers = is_callable($subscribers) ? [$subscribers] : $subscribers; |
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foreach ($subscribers as $subscriber) { |
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$key = array_search($subscriber, $this->handlers[$eventName], true); |
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if ($key !== false) { |
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unset($this->handlers[$eventName][$key]); |
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} |
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} |
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} |
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} |
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/** |
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* Remove all handlers from bag |
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* |
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* @return void |
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*/ |
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public function removeAll() |
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{ |
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$this->handlers = []; |
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} |
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/** |
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* Remove all handlers for given event name |
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* |
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* @param string $eventName Event name to remove handlers |
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* |
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* @return void |
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*/ |
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public function removeForEvent($eventName) |
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{ |
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if (isset($this->handlers[$eventName])) { |
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unset($this->handlers[$eventName]); |
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} |
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} |
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/** {@inheritdoc} */ |
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public function invokeEvent(Event $event) |
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{ |
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$eventName = $event->getType(); |
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$subscribers = isset($this->handlers[$eventName]) ? $this->handlers[$eventName] : []; |
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foreach ($subscribers as $subscriber) { |
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call_user_func($subscriber, $event); |
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} |
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} |
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/** {@inheritdoc} */ |
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public function count() |
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{ |
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return count($this->handlers); |
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} |
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} |
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|
edefimov /
async-sockets
