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<?php
declare(strict_types=1);
namespace Mcustiel\OneHundredFour\Command;
use Mcustiel\OneHundredFour\Command\Exceptions\CommandHandlerLocatorException;
use Mcustiel\OneHundredFour\Command\Exceptions\UnregisteredCommandHandlerException;
use Mcustiel\OneHundredFour\HandlerIdentifier;
use Psr\Container\ContainerInterface;
class CommandHandlerLocator
{
/** @var ContainerInterface */
private $creator;
public function __construct(ContainerInterface $creator)
$this->creator = $creator;
}
/** @throws CommandHandlerLocatorException */
public function locate(HandlerIdentifier $identifier): CommandHandler
$stringIdentifier = $identifier->get();
$this->ensureHandlerExists($stringIdentifier);
return $this->creator->get($stringIdentifier);
/** @throws UnregisteredCommandHandlerException */
private function ensureHandlerExists(string $stringIdentifier)
if (!$this->creator->has($stringIdentifier)) {
throw new UnregisteredCommandHandlerException(
'Can not get instance of handler with id: ' . $stringIdentifier
);
mcustiel /
104
