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<?php declare(strict_types=1);
namespace Stratadox\CommandHandling;
use Throwable;
/**
* Decorator that invokes the middleware when handling a command failed.
*
* Used to configure middleware that runs when an exception is encountered.
* Such middleware could, for example:
* - log the exception
* - roll back a unit of work or database transaction
* - etc
*/
final class OnExceptionCases implements Handler
{
private $middleware;
private $handler;
private function __construct(
ExceptionPathMiddleware $middleware,
Handler $handler
) {
$this->middleware = $middleware;
$this->handler = $handler;
}
public static function invoke(
): Handler {
return new self($middleware, $handler);
/** @inheritdoc */
public function handle(object $command): void
try {
$this->handler->handle($command);
} catch (Throwable $exception) {
$this->middleware->invoke($command, $exception);
Stratadox /
CommandHandling
