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1 | <?php |
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2 | |||
3 | namespace League\JsonReference; |
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4 | |||
5 | use Closure; |
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6 | use League\JsonReference\Loader\CachedLoader; |
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7 | use Psr\SimpleCache\CacheInterface; |
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8 | |||
9 | final class CachedDereferencer implements DereferencerInterface |
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10 | { |
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11 | /** |
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12 | * @var Dereferencer |
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13 | */ |
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14 | private $dereferencer; |
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15 | |||
16 | /** |
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17 | * @var CacheInterface |
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18 | */ |
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19 | private $cache; |
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20 | |||
21 | /** |
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22 | * @param Dereferencer $dereferencer |
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23 | * @param CacheInterface $cache |
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24 | * @param bool $cacheLoaders |
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25 | */ |
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26 | 8 | public function __construct(Dereferencer $dereferencer, CacheInterface $cache, $cacheLoaders = true) |
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27 | { |
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28 | 8 | $this->dereferencer = $dereferencer; |
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29 | 8 | $this->cache = $cache; |
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30 | |||
31 | 8 | if ($cacheLoaders) { |
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32 | 8 | $this->cacheLoaders(); |
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33 | 4 | } |
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34 | |||
35 | 8 | Reference::setDereferencerInstance($this); |
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36 | 8 | } |
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37 | |||
38 | /** |
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39 | * {@inheritdoc} |
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40 | */ |
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41 | 8 | public function dereference($schema, $uri = '') |
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42 | { |
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43 | 8 | $key = static::key($schema, $uri); |
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44 | |||
45 | 8 | return $this->remember($key, function () use ($schema, $uri) { |
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46 | 6 | return $this->dereferencer->dereference($schema, $uri); |
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47 | 8 | }); |
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48 | } |
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49 | |||
50 | /** |
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51 | * @param string $key |
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52 | * @param Closure $callback |
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53 | * |
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54 | * @return object |
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55 | */ |
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56 | 8 | private function remember($key, Closure $callback) |
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57 | { |
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58 | 8 | $value = $this->cache->get($key); |
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59 | |||
60 | 8 | if ($value !== null) { |
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61 | 2 | return $value; |
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62 | } |
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63 | |||
64 | 6 | $this->cache->set($key, $value = $callback()); |
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65 | |||
66 | 6 | return $value; |
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67 | } |
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68 | |||
69 | /** |
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70 | * @param string|object $schema |
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71 | * @param string $uri |
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72 | * |
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73 | * @return string |
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74 | */ |
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75 | 8 | private static function key($schema, $uri) |
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76 | { |
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77 | 8 | if ($uri !== '') { |
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78 | 2 | return sha1($uri); |
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79 | } |
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80 | |||
81 | 6 | return sha1(is_string($schema) ? $schema : json_encode($schema)); |
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82 | } |
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83 | |||
84 | /** |
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85 | * @return void |
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86 | */ |
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87 | 8 | private function cacheLoaders() |
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88 | { |
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89 | 8 | $loaderManager = $this->dereferencer->getLoaderManager(); |
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90 | 8 | foreach ($loaderManager->getLoaders() as $prefix => $loader) { |
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91 | 8 | $loaderManager->registerLoader($prefix, new CachedLoader($this->cache, $loader)); |
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92 | 4 | } |
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93 | 8 | } |
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94 | |||
95 | public function getLoaderManager() |
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96 | { |
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97 | return $this->dereferencer->getLoaderManager(); |
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98 | } |
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99 | |||
100 | public function getScopeResolver() |
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101 | { |
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102 | return $this->dereferencer->getScopeResolver(); |
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103 | } |
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104 | |||
105 | 2 | public function getReferenceSerializer() |
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106 | { |
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107 | 2 | return $this->dereferencer->getReferenceSerializer(); |
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108 | } |
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109 | } |
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110 |
Late static binding only has effect in subclasses. A
final
class cannot be extended anymore so late static binding cannot occurr. Consider replacingstatic::
withself::
.To learn more about late static binding, please refer to the PHP core documentation.