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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\Exceptions\EventSubscriberMethodNotCallable; | |
| use IceHawk\IceHawk\PubSub\Interfaces\CarriesEventData; | |
| use IceHawk\IceHawk\PubSub\Interfaces\SubscribesToEvents; | |
| /** | |
| * Class AbstractEventSubscriber | |
| * @package IceHawk\IceHawk\PubSub | |
| */ | |
| abstract class AbstractEventSubscriber implements SubscribesToEvents | |
| { | |
| final public function acceptsEvent( CarriesEventData $event ) : bool | |
| { | |
| return in_array( get_class( $event ), $this->getAcceptedEvents(), true ); | |
| } | |
| abstract protected function getAcceptedEvents() : array; | |
| /** | |
| * @param CarriesEventData $event | |
| * | |
| * @throws EventSubscriberMethodNotCallable | |
| */ | |
| final public function notify( CarriesEventData $event ) | |
| { | |
| $namespaceComponents = explode( "\\", get_class( $event ) ); | |
| $methodName = sprintf( 'when%s', preg_replace( '#Event$#', '', end( $namespaceComponents ) ) ); | |
| if ( is_callable( [$this, $methodName] ) ) | |
| { | |
| $this->{$methodName}( $event ); | |
| } | |
| else | |
| { | |
| throw (new EventSubscriberMethodNotCallable())->withMethodName( $methodName ); | |
| } | |
| } | |
| } |