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| <?php declare(strict_types = 1); | |
| /** | |
| * Copyright (c) 2017 Holger Woltersdorf & Contributors | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| * of this software and associated documentation files (the "Software"), to deal | |
| * in the Software without restriction, including without limitation the rights | |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| * copies of the Software, and to permit persons to whom the Software is | |
| * furnished to do so, subject to the following conditions: | |
| * The above copyright notice and this permission notice shall be included in | |
| * all copies or substantial portions of the Software. | |
| */ | |
| namespace IceHawk\IceHawk\PubSub; | |
| use IceHawk\IceHawk\PubSub\Interfaces\CarriesEventData; | |
| use IceHawk\IceHawk\PubSub\Interfaces\PublishesEvents; | |
| use IceHawk\IceHawk\PubSub\Interfaces\RegistersEventSubscribers; | |
| use IceHawk\IceHawk\PubSub\Interfaces\SubscribesToEvents; | |
| /** | |
| * Class EventPublisher | |
| * @package IceHawk\IceHawk\PubSub | |
| */ | |
| final class EventPublisher implements RegistersEventSubscribers, PublishesEvents | |
| { | |
| /** @var array|SubscribesToEvents[] */ | |
| private $subscribers; | |
| public function __construct() | |
| { | |
| $this->subscribers = []; | |
| } | |
| public function register( SubscribesToEvents $subscriber ) | |
| { | |
| if ( !in_array( $subscriber, $this->subscribers, false ) ) | |
| { | |
| $this->subscribers[] = $subscriber; | |
| } | |
| } | |
| public function publish( CarriesEventData $event ) | |
| { | |
| foreach ( $this->subscribers as $subscriber ) | |
| { | |
| if ( $subscriber->acceptsEvent( $event ) ) | |
| { | |
| $subscriber->notify( $event ); | |
| } | |
| } | |
| } | |
| } |