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<?php |
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/* |
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* This file is part of the OverblogGraphQLBundle package. |
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* |
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* (c) Overblog <http://github.com/overblog/> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Overblog\GraphQLBundle\Request; |
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use GraphQL\Error; |
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use GraphQL\Executor\ExecutionResult; |
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use GraphQL\Executor\Executor as GraphQLExecutor; |
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use GraphQL\GraphQL; |
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use GraphQL\Language\Parser as GraphQLParser; |
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use GraphQL\Language\Source; |
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use GraphQL\Schema; |
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use GraphQL\Validator\DocumentValidator; |
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use Overblog\GraphQLBundle\Error\ErrorHandler; |
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use Overblog\GraphQLBundle\Event\Events; |
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use Overblog\GraphQLBundle\Event\ExecutorContextEvent; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface; |
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class Executor |
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{ |
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private $schema; |
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/** |
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* @var EventDispatcherInterface|null |
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*/ |
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private $dispatcher; |
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/** @var bool */ |
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private $throwException; |
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/** @var ErrorHandler|null */ |
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private $errorHandler; |
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/** @var callable[] */ |
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private $validationRules; |
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public function __construct(Schema $schema, EventDispatcherInterface $dispatcher = null, $throwException = false, ErrorHandler $errorHandler = null) |
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{ |
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$this->schema = $schema; |
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$this->dispatcher = $dispatcher; |
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$this->throwException = (bool) $throwException; |
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$this->errorHandler = $errorHandler; |
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$this->validationRules = DocumentValidator::allRules(); |
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} |
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public function addValidatorRule(callable $validatorRule) |
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{ |
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$this->validationRules[] = $validatorRule; |
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} |
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/** |
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* @param bool $throwException |
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* |
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* @return $this |
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*/ |
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public function setThrowException($throwException) |
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{ |
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$this->throwException = (bool) $throwException; |
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return $this; |
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} |
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public function execute(array $data, array $context = []) |
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{ |
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if (null !== $this->dispatcher) { |
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$event = new ExecutorContextEvent($context); |
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$this->dispatcher->dispatch(Events::EXECUTOR_CONTEXT, $event); |
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$context = $event->getExecutorContext(); |
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} |
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$executionResult = $this->executeAndReturnResult( |
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$this->schema, |
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isset($data['query']) ? $data['query'] : null, |
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$context, |
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$data['variables'], |
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$data['operationName'] |
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); |
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if (null !== $this->errorHandler) { |
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$this->errorHandler->handleErrors($executionResult, $this->throwException); |
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} |
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return $executionResult; |
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} |
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private function executeAndReturnResult(Schema $schema, $requestString, $rootValue = null, $variableValues = null, $operationName = null) |
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{ |
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try { |
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$source = new Source($requestString ?: '', 'GraphQL request'); |
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$documentAST = GraphQLParser::parse($source); |
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$validationErrors = DocumentValidator::validate($schema, $documentAST, $this->validationRules); |
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if (!empty($validationErrors)) { |
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return new ExecutionResult(null, $validationErrors); |
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} |
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return GraphQLExecutor::execute($schema, $documentAST, $rootValue, $variableValues, $operationName); |
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} catch (Error $e) { |
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return new ExecutionResult(null, [$e]); |
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} |
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} |
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} |
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overblog /
GraphQLBundle
