Saga.php

<?php

/*
 * This file is part of the broadway/broadway package.
 *
 * (c) Qandidate.com <opensource@qandidate.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Broadway\Saga;

abstract class Saga implements SagaInterface
{
    /**
     * {@inheritDoc}
     */
    public function handle($event, State $state)
    {
        $method = $this->getHandleMethod($event);

        if (! method_exists($this, $method)) {
            throw new \BadMethodCallException(
                sprintf(
                    "No handle method '%s' for event '%s'.",
                    $method,
                    get_class($event)
                )
            );
        }

        return $this->$method($event, $state);
    }

    private function getHandleMethod($event)
    {
        $classParts = explode('\\', get_class($event));

        return 'handle' . end($classParts);
    }
}