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<?php |
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namespace Drupal\graphql\Plugin\GraphQL; |
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use Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException; |
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use Drupal\Core\DependencyInjection\DependencySerializationTrait; |
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class PluggableSchemaBuilder implements PluggableSchemaBuilderInterface { |
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use DependencySerializationTrait { |
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__sleep as sleepDependencies; |
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} |
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/** |
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* The type system plugin manager aggregator service. |
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* |
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* @var \Drupal\graphql\Plugin\GraphQL\TypeSystemPluginManagerAggregator |
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*/ |
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protected $pluginManagers; |
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/** |
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* Static cache of type system plugin instances. |
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* |
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* @var \Drupal\graphql\Plugin\GraphQL\TypeSystemPluginInterface |
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*/ |
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protected $instances = []; |
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/** |
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* Static cache of plugin definitions. |
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* |
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* @var array |
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*/ |
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protected $definitions; |
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/** |
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* PluggableSchemaBuilderInterface constructor. |
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* |
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* @param \Drupal\graphql\Plugin\GraphQL\TypeSystemPluginManagerAggregator $pluginManagers |
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* Type system plugin manager aggregator service. |
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*/ |
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public function __construct(TypeSystemPluginManagerAggregator $pluginManagers) { |
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$this->pluginManagers = $pluginManagers; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getInstance($pluginType, $pluginId, array $pluginConfiguration = []) { |
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asort($pluginConfiguration); |
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$configCid = md5(json_encode($pluginConfiguration)); |
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if (!isset($this->instances[$pluginType][$pluginId][$configCid])) { |
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$manager = $this->pluginManagers->getPluginManager($pluginType); |
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if (empty($manager)) { |
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throw new \LogicException(sprintf('Could not find %s plugin manager for plugin %s.', $pluginType, $pluginId)); |
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} |
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// We do not allow plugin configuration for now. |
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$instance = $manager->createInstance($pluginId, $pluginConfiguration); |
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if (empty($instance)) { |
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throw new \LogicException(sprintf('Could not instantiate plugin %s of type %s.', $pluginId, $pluginType)); |
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} |
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if (!$instance instanceof TypeSystemPluginInterface) { |
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throw new \LogicException(sprintf('Plugin %s of type %s does not implement \Drupal\graphql\Plugin\GraphQL\TypeSystemPluginInterface.', $pluginId, $pluginType)); |
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} |
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// Initialize the static cache array if necessary. |
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$this->instances[$pluginType] = isset($this->instances[$pluginType]) ? $this->instances[$pluginType] : []; |
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$this->instances[$pluginType][$pluginId] = isset($this->instances[$pluginType][$pluginId]) ? $this->instances[$pluginType][$pluginId] : []; |
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$this->instances[$pluginType][$pluginId][$configCid] = $instance; |
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} |
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return $this->instances[$pluginType][$pluginId][$configCid]; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function find(callable $selector, array $types, $invert = FALSE) { |
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$instances = []; |
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foreach ($this->getDefinitions() as $index => $definition) { |
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$name = $definition['definition']['name']; |
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if (empty($name)) { |
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throw new InvalidPluginDefinitionException('Invalid GraphQL plugin definition. No name defined.'); |
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} |
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if (!array_key_exists($name, $instances) && in_array($definition['definition']['pluginType'], $types)) { |
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if ((($invert && !$selector($definition['definition'])) || $selector($definition['definition']))) { |
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$instances[$name] = $this->getInstance($definition['type'], $definition['id']); |
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} |
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} |
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} |
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return $instances; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function findByName($name, array $types) { |
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$result = $this->find(function($definition) use ($name) { |
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return $definition['name'] === $name; |
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}, $types); |
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if (empty($result)) { |
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throw new InvalidPluginDefinitionException(sprintf('GraphQL plugin with name %s could not be found.', $name)); |
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} |
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return array_pop($result); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function findByDataType($dataType, array $types = [ |
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GRAPHQL_UNION_TYPE_PLUGIN, |
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GRAPHQL_TYPE_PLUGIN, |
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GRAPHQL_INTERFACE_PLUGIN, |
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GRAPHQL_SCALAR_PLUGIN, |
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]) { |
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$chain = explode(':', $dataType); |
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while ($chain) { |
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$dataType = implode(':', $chain); |
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$types = $this->find(function($definition) use ($dataType) { |
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return isset($definition['data_type']) && $definition['data_type'] == $dataType; |
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}, $types); |
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if (!empty($types)) { |
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return array_pop($types); |
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} |
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array_pop($chain); |
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} |
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return NULL; |
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} |
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/** |
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* Collects and aggregates all plugin definitions. |
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* |
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* |
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* @return array |
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* The plugin definitions array. |
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*/ |
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protected function getDefinitions() { |
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$this->definitions = []; |
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/** @var \Drupal\graphql\Plugin\GraphQL\TypeSystemPluginManagerInterface $manager */ |
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foreach ($this->pluginManagers as $manager) { |
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foreach ($manager->getDefinitions() as $pluginId => $definition) { |
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$this->definitions[] = [ |
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'id' => $pluginId, |
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'type' => $definition['pluginType'], |
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'weight' => $definition['weight'], |
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'definition' => $definition, |
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]; |
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} |
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} |
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uasort($this->definitions, '\Drupal\Component\Utility\SortArray::sortByWeightElement'); |
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$this->definitions = array_reverse($this->definitions); |
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return $this->definitions; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __sleep() { |
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// Don't write the plugin instances into the cache. |
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return array_diff($this->sleepDependencies(), ['instances']); |
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} |
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} |
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drupal-graphql /
graphql
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.