|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Abacaphiliac\Extractor; |
|
4
|
|
|
|
|
5
|
|
|
use Abacaphiliac\Extractor\Exception\UnexpectedValueException; |
|
6
|
|
|
use Zend\Stdlib\ArrayUtils; |
|
7
|
|
|
|
|
8
|
|
|
class ExtractorChain implements ExtractionInterface |
|
9
|
|
|
{ |
|
10
|
|
|
/** @var ExtractionInterface[] */ |
|
11
|
|
|
private $extractors = []; |
|
12
|
|
|
|
|
13
|
|
|
/** @var bool */ |
|
14
|
|
|
private $mergeRecursively; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* PendoOptionsProviderChain constructor. |
|
18
|
|
|
* @param ExtractionInterface[] $extractors |
|
19
|
|
|
* @param bool $mergeRecursively |
|
20
|
|
|
*/ |
|
21
|
|
|
public function __construct(array $extractors = [], $mergeRecursively = true) |
|
22
|
|
|
{ |
|
23
|
|
|
array_walk($extractors, [$this, 'addExtractor']); |
|
24
|
|
|
$this->mergeRecursively = $mergeRecursively; |
|
25
|
|
|
} |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* @param ExtractionInterface $extractor |
|
29
|
|
|
*/ |
|
30
|
|
|
private function addExtractor(ExtractionInterface $extractor) |
|
31
|
|
|
{ |
|
32
|
|
|
$this->extractors[] = $extractor; |
|
33
|
|
|
} |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* @return mixed[] |
|
37
|
|
|
* @throws \Abacaphiliac\Extractor\Exception\UnexpectedValueException |
|
38
|
|
|
*/ |
|
39
|
|
|
public function extract() |
|
40
|
|
|
{ |
|
41
|
|
|
$dataSets = array_map(function (ExtractionInterface $extractor) { |
|
42
|
|
|
$data = $extractor->extract(); |
|
43
|
|
|
|
|
44
|
|
|
if ($data instanceof \Traversable) { |
|
45
|
|
|
$data = iterator_to_array($data); |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
if (!is_array($data)) { |
|
49
|
|
|
throw new UnexpectedValueException(sprintf( |
|
50
|
|
|
'Extractor type `%s` returned a `%s` instead of an `array`', |
|
51
|
|
|
get_class($extractor), |
|
52
|
|
|
is_object($data) ? get_class($data) : gettype($data) |
|
53
|
|
|
)); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
return $data; |
|
57
|
|
|
}, $this->extractors); |
|
58
|
|
|
|
|
59
|
|
|
if (count($dataSets) < 1) { |
|
60
|
|
|
return []; |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
if (!$this->mergeRecursively) { |
|
64
|
|
|
return array_merge(...$dataSets); |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
|
|
$result = []; |
|
68
|
|
|
foreach ($dataSets as $data) { |
|
69
|
|
|
// Zend's function will overwrite keys with new values upon collision, as opposed to PHP's native |
|
70
|
|
|
// array_merge_recursive function which will generate a new array of merged values for that key. |
|
71
|
|
|
$result = ArrayUtils::merge($result, $data); |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
return $result; |
|
75
|
|
|
} |
|
76
|
|
|
} |
|
77
|
|
|
|
abacaphiliac /
php-extractor
