TestMiddleware.php in Zircon Profile 8.0        
                          
                  
                        
  
  
  
File
  core/modules/system/tests/modules/httpkernel_test/src/HttpKernel/TestMiddleware.php
  
    View source  
  <?php
namespace Drupal\httpkernel_test\HttpKernel;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\HttpKernelInterface;
class TestMiddleware implements HttpKernelInterface {
  
  protected $kernel;
  
  protected $optionalArgument;
  
  public function __construct(HttpKernelInterface $kernel, $optional_argument = NULL) {
    $this->kernel = $kernel;
    $this->optionalArgument = $optional_argument;
  }
  
  public function handle(Request $request, $type = self::MASTER_REQUEST, $catch = TRUE) {
    $request->attributes
      ->set('_hello', 'world');
    if ($request->attributes
      ->has('_optional_argument')) {
      $request->attributes
        ->set('_previous_optional_argument', $request->attributes
        ->get('_optional_argument'));
    }
    elseif (isset($this->optionalArgument)) {
      $request->attributes
        ->set('_optional_argument', $this->optionalArgument);
    }
    return $this->kernel
      ->handle($request, $type, $catch);
  }
}