HandlerChain.php

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<?php
namespace Magento\Payment\Gateway\Response;

use Magento\Framework\ObjectManager\TMap;
use Magento\Framework\ObjectManager\TMapFactory;

class HandlerChain implements HandlerInterface
{
    private $handlers;

    public function __construct(
        TMapFactory $tmapFactory,
        array $handlers = []
    ) {
        $this->handlers = $tmapFactory->create(
            [
                'array' => $handlers,
                'type' => HandlerInterface::class
            ]
        );
    }

    public function handle(array $handlingSubject, array $response)
    {
        foreach ($this->handlers as $handler) {
            // @TODO implement exceptions catching
            $handler->handle($handlingSubject, $response);
        }
    }
}