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<?php declare(strict_types=1);
namespace BSP\CommandBus;
use BSP\CommandBus\Contracts\CommandHandlerMap;
use BSP\CommandBus\Exception\CommandHandlerClassNameDoesNotEndWithHandler;
final class SimpleCommandHandlerMap implements CommandHandlerMap
{
private $map = [];
/**
* @param iterable<string, callable> $handlers
*/
public function __construct(iterable $handlers)
foreach ($handlers as $handler) {
$this->add($handler);
}
* @inheritDoc
public function map(): array
return $this->map;
public function add(object $handler): void
$handlerClass = \get_class($handler);
if (false === $this->stringEndsWith($handlerClass, 'Handler')) {
throw new CommandHandlerClassNameDoesNotEndWithHandler();
$commandClass = $this->getCommandClass($handlerClass);
$this->map[$commandClass] = $handler;
private function stringEndsWith(string $string, string $endWith): bool
$text = substr($string, -strlen($endWith));
return $text === $endWith;
private function getCommandClass(string $commandHandlerClass): string
$commandHandlerClassLength = strlen('Handler');
return substr_replace($commandHandlerClass, '', -$commandHandlerClassLength, $commandHandlerClassLength);
BlacksmithProject /
CommandBus
