1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
declare(strict_types=1); |
4
|
|
|
|
5
|
|
|
namespace App\Middleware; |
6
|
|
|
|
7
|
|
|
use App\Stream\Data\Converter; |
8
|
|
|
use App\Stream\Data\PrintRConverter; |
9
|
|
|
use App\Stream\DataStream; |
10
|
|
|
use App\Stream\Value\DataResponseProvider; |
11
|
|
|
use Psr\Container\ContainerInterface; |
12
|
|
|
use Psr\Http\Message\ResponseInterface; |
13
|
|
|
use Psr\Http\Message\ServerRequestInterface; |
14
|
|
|
use Psr\Http\Message\StreamFactoryInterface; |
15
|
|
|
use Psr\Http\Message\StreamInterface; |
16
|
|
|
use Psr\Http\Server\MiddlewareInterface; |
17
|
|
|
use Psr\Http\Server\RequestHandlerInterface; |
18
|
|
|
|
19
|
|
|
final class RenderDataStream implements MiddlewareInterface |
20
|
|
|
{ |
21
|
|
|
private ContainerInterface $container; |
22
|
|
|
private StreamFactoryInterface $streamFactory; |
23
|
|
|
|
24
|
|
|
public function __construct(ContainerInterface $container, StreamFactoryInterface $streamFactory) |
25
|
|
|
{ |
26
|
|
|
$this->container = $container; |
27
|
|
|
$this->streamFactory = $streamFactory; |
28
|
|
|
} |
29
|
|
|
|
30
|
|
|
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
31
|
|
|
{ |
32
|
|
|
$response = $handler->handle($request); |
33
|
|
|
$stream = $response->getBody(); |
34
|
|
|
if (!$stream instanceof DataStream) { |
35
|
|
|
return $response; |
36
|
|
|
} |
37
|
|
|
|
38
|
|
|
$data = $stream->getData(); |
39
|
|
|
$converter = $this->getConverter($data->getFormat(), $request); |
40
|
|
|
|
41
|
|
|
$response = $response->withBody($this->convertData($data, $converter)); |
42
|
|
|
|
43
|
|
|
return $this->addHeaders($response->withHeader('Content-Type', $converter::getFormat()), $data->getHeaders()); |
44
|
|
|
} |
45
|
|
|
|
46
|
|
|
private function addHeaders(ResponseInterface $response, array $headers): ResponseInterface |
47
|
|
|
{ |
48
|
|
|
foreach ($headers as $header => $value) { |
49
|
|
|
$response = $response->withHeader($header, $value); |
50
|
|
|
} |
51
|
|
|
return $response; |
52
|
|
|
} |
53
|
|
|
private function convertData(DataResponseProvider $data, Converter $converter): StreamInterface |
54
|
|
|
{ |
55
|
|
|
$result = $converter->convert($data->getData(), $data->getParams()); |
56
|
|
|
return $this->streamFactory->createStream($result); |
57
|
|
|
} |
58
|
|
|
|
59
|
|
|
private function getRelevantType(ServerRequestInterface $request): string |
|
|
|
|
60
|
|
|
{ |
61
|
|
|
# todo |
62
|
|
|
return PrintRConverter::class; |
63
|
|
|
} |
64
|
|
|
private function getConverter(?string $format, ServerRequestInterface $request): Converter |
65
|
|
|
{ |
66
|
|
|
return $this->container->get($format ?? $this->getRelevantType($request)); |
67
|
|
|
} |
68
|
|
|
} |
69
|
|
|
|
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.