BornFree\TacticianDomainEvent\EventDispatcher\EventDispatcher

Complexity

Total Complexity

7

Size/Duplication

Total Lines	47
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	dispatch()	0	8	3
A	addListener()	0	4	1
A	getListeners()	0	8	2
A	hasListeners()	0	4	1

<?php

namespace BornFree\TacticianDomainEvent\EventDispatcher;

class EventDispatcher implements EventDispatcherInterface, ContainsListenersInterface
{
    /**
     * @var callable[][]
     */
    private $listeners = [];

    /**
     * @inheritdoc
     */
    public function dispatch($event)
    {
        $name = $event instanceof NamedEvent ? $event->getName() : get_class($event);

        foreach ($this->getListeners($name) as $listener) {
            $listener($event);
        }
    }

    /**
     * @inheritdoc
     */
    public function addListener($eventName, callable $listener)
    {
        $this->listeners[$eventName][] = $listener;
    }

    /**
     * @inheritdoc
     */
    public function getListeners($eventName)
    {
        if (! $this->hasListeners($eventName)) {
            return [];
        }

        return $this->listeners[$eventName];
    }

    /**
     * @inheritdoc
     */
    public function hasListeners($eventName)
    {
        return isset($this->listeners[$eventName]);
    }
}