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<?php |
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namespace Drupal\graphql\GraphQL\QueryProvider; |
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use Drupal\Component\FileSystem\RegexDirectoryIterator; |
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use Drupal\Core\Cache\CacheBackendInterface; |
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use Drupal\Core\Config\ConfigFactoryInterface; |
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use GraphQL\Server\OperationParams; |
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class JsonQueryMapQueryProvider implements QueryProviderInterface { |
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/** |
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* The cache backend for storing query map file paths. |
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* |
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* @var \Drupal\Core\Cache\CacheBackendInterface |
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*/ |
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protected $cacheBackend; |
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/** |
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* The paths to use for finding query maps. |
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* |
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* @var string[] |
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*/ |
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protected $lookupPaths; |
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/** |
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* QueryProvider constructor. |
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* |
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* @param \Drupal\Core\Cache\CacheBackendInterface $cacheBackend |
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* The cache backend for storing query map file paths. |
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* @param \Drupal\Core\Config\ConfigFactoryInterface $configFactory |
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* The config factory. |
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*/ |
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public function __construct(CacheBackendInterface $cacheBackend, ConfigFactoryInterface $configFactory) { |
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$this->lookupPaths = $configFactory->get('graphql.query_map_json.config')->get('lookup_paths') ?: []; |
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$this->cacheBackend = $cacheBackend; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getQuery($id, OperationParams $operation) { |
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list($version, $id) = explode(':', $id); |
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// Check that the id is properly formatted. |
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if (empty($version) || empty($id)) { |
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return NULL; |
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} |
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if (!(($cache = $this->cacheBackend->get('graphql_query_map_json_versions')) && ($versions = $cache->data) !== NULL)) { |
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$this->cacheBackend->set('graphql_query_map_json_versions', $versions = $this->discoverQueryMaps()); |
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} |
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if (isset($versions) && isset($versions[$version]) && file_exists($versions[$version])) { |
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$contents = json_decode(file_get_contents($versions[$version]), TRUE); |
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if ($query = array_search($id, $contents)) { |
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return $query; |
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} |
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} |
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return NULL; |
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} |
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/** |
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* Discovers the available query maps within the configured lookup paths. |
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* |
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* @return array |
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* An associative array of query maps with the query map versions as keys. |
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*/ |
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protected function discoverQueryMaps() { |
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$maps = []; |
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foreach ($this->lookupPaths as $path) { |
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if (is_dir($path)) { |
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$iterator = new RegexDirectoryIterator($path, '/\.json/i'); |
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/** @var \SplFileInfo $file */ |
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foreach ($iterator as $file) { |
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$hash = sha1(file_get_contents($file->getPathname())); |
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$maps[$hash] = $file->getPathname(); |
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} |
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} |
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if (is_file($path)) { |
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$file = new \SplFileInfo($path); |
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$hash = sha1(file_get_contents($file->getPathname())); |
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$maps[$hash] = $file->getPathname(); |
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} |
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} |
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return $maps; |
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} |
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} |
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drupal-graphql /
graphql
