Chain::process() - Code Metrics - Inspection of "Add Chain middleware that allows adding extra befo..." - yiisoft/yii-web - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 5bc705...727a39 )

by Alexander

created 2019-07-03 13:45 UTC

Chain::process() A

↳ Parent: Chain

Complexity

Conditions	2
Paths	2

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	2
c	1
b	0
f	0
dl	0
loc	6
rs	10
eloc	3
nc	2
nop	2

<?php
namespace Yiisoft\Yii\Web\Middleware;

use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\ResponseInterface;

/**
 * Chain executes middlewares in the order they are added to constructor.
 *
 * Use if you need to execute middlewares before or after the middleware
 * you already have.
 */
class Chain implements MiddlewareInterface
{
    private $middlewares;

    public function __construct(MiddlewareInterface ...$middlewares)
    {
        $this->middlewares = $middlewares;
    }

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        for ($i = count($this->middlewares) - 1; $i > 0; $i--) {
            $handler = $this->wrap($this->middlewares[$i], $handler);
        }
        return $this->middlewares[0]->process($request, $handler);
    }

    /**
     * Wraps handler by middlewares
     */
    private function wrap(MiddlewareInterface $middleware, RequestHandlerInterface $handler): RequestHandlerInterface
    {
        return new class($middleware, $handler) implements RequestHandlerInterface
        {
            private $middleware;
            private $handler;

            public function __construct(MiddlewareInterface $middleware, RequestHandlerInterface $handler)
            {
                $this->middleware = $middleware;
                $this->handler = $handler;
            }

            public function handle(ServerRequestInterface $request): ResponseInterface
            {
                return $this->middleware->process($request, $this->handler);
            }
        };
    }
}


1			<?php
2			namespace Yiisoft\Yii\Web\Middleware;
3
4			use Psr\Http\Server\MiddlewareInterface;
5			use Psr\Http\Server\RequestHandlerInterface;
6			use Psr\Http\Message\ServerRequestInterface;
7			use Psr\Http\Message\ResponseInterface;
8
9			/**
10			* Chain executes middlewares in the order they are added to constructor.
11			*
12			* Use if you need to execute middlewares before or after the middleware
13			* you already have.
14			*/
15			class Chain implements MiddlewareInterface
16			{
17			private $middlewares;
18
19			public function __construct(MiddlewareInterface ...$middlewares)
20			{
21			$this->middlewares = $middlewares;
22			}
23
24			public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
25			{
26			for ($i = count($this->middlewares) - 1; $i > 0; $i--) {
27			$handler = $this->wrap($this->middlewares[$i], $handler);
28			}
29			return $this->middlewares[0]->process($request, $handler);
30			}
31
32			/**
33			* Wraps handler by middlewares
34			*/
35			private function wrap(MiddlewareInterface $middleware, RequestHandlerInterface $handler): RequestHandlerInterface
36			{
37			return new class($middleware, $handler) implements RequestHandlerInterface
38			{
39			private $middleware;
40			private $handler;
41
42			public function __construct(MiddlewareInterface $middleware, RequestHandlerInterface $handler)
43			{
44			$this->middleware = $middleware;
45			$this->handler = $handler;
46			}
47
48			public function handle(ServerRequestInterface $request): ResponseInterface
49			{
50			return $this->middleware->process($request, $this->handler);
51			}
52			};
53			}
54			}
55

yiisoft / yii-web

Push — master ( 5bc705...727a39 )

Chain::process() A

Complexity

Size

Duplication

Importance

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