BindingInstaller.php

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<?php
namespace Magento\Framework\Amqp\Topology;

use Magento\Framework\MessageQueue\Topology\Config\ExchangeConfigItem\BindingInterface;
use PhpAmqpLib\Channel\AMQPChannel;

class BindingInstaller implements BindingInstallerInterface
{
    private $installers;

    public function __construct(array $installers)
    {
        $this->installers = $installers;
    }

    public function install(AMQPChannel $channel, BindingInterface $binding, $exchangeName)
    {
        $this->getInstaller($binding->getDestinationType())->install($channel, $binding, $exchangeName);
    }

    private function getInstaller($type)
    {
        if (!isset($this->installers[$type])) {
            throw new \InvalidArgumentException(sprintf('Installer type [%s] is not configured', $type));
        }
        return $this->installers[$type];
    }
}