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<?php
declare(strict_types=1);
namespace Overblog\GraphQLBundle\Request;
use ArrayObject;
use Closure;
use GraphQL\Executor\ExecutionResult;
use GraphQL\Executor\Promise\PromiseAdapter;
use GraphQL\GraphQL;
use GraphQL\Type\Schema;
use GraphQL\Validator\DocumentValidator;
use GraphQL\Validator\Rules\DisableIntrospection;
use GraphQL\Validator\Rules\QueryComplexity;
use GraphQL\Validator\Rules\QueryDepth;
use Overblog\GraphQLBundle\Event\Events;
use Overblog\GraphQLBundle\Event\ExecutorArgumentsEvent;
use Overblog\GraphQLBundle\Event\ExecutorContextEvent;
use Overblog\GraphQLBundle\Event\ExecutorResultEvent;
use Overblog\GraphQLBundle\Executor\ExecutorInterface;
use RuntimeException;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use function array_keys;
use function is_callable;
use function sprintf;
class Executor
{
public const PROMISE_ADAPTER_SERVICE_ID = 'overblog_graphql.promise_adapter';
private array $schemas = [];
private EventDispatcherInterface $dispatcher;
private PromiseAdapter $promiseAdapter;
private ExecutorInterface $executor;
private bool $useExperimentalExecutor; // TODO: remove in 1.0
/**
* @var callable|null
*/
private $defaultFieldResolver;
public function __construct(
ExecutorInterface $executor,
PromiseAdapter $promiseAdapter,
EventDispatcherInterface $dispatcher,
?callable $defaultFieldResolver = null,
bool $useExperimental = false // TODO: remove in 1.0
) {
$this->executor = $executor;
$this->promiseAdapter = $promiseAdapter;
$this->dispatcher = $dispatcher;
$this->defaultFieldResolver = $defaultFieldResolver;
$this->useExperimentalExecutor = $useExperimental; // TODO: remove in 1.0
}
public function setExecutor(ExecutorInterface $executor): self
{
$this->executor = $executor;
return $this;
}
public function addSchemaBuilder(string $name, Closure $builder): self
{
$this->schemas[$name] = $builder;
return $this;
}
public function addSchema(string $name, Schema $schema): self
{
$this->schemas[$name] = $schema;
return $this;
}
public function getSchema(string $name = null): Schema
{
if (empty($this->schemas)) {
throw new RuntimeException('At least one schema should be declare.');
}
if (null === $name) {
$name = isset($this->schemas['default']) ? 'default' : array_key_first($this->schemas);
}
if (!isset($this->schemas[$name])) {
throw new NotFoundHttpException(sprintf('Could not found "%s" schema.', $name));
}
$schema = $this->schemas[$name];
if (is_callable($schema)) {
$schema = $schema();
$this->addSchema((string) $name, $schema);
}
return $schema;
}
public function getSchemasNames(): array
{
return array_keys($this->schemas);
}
public function setMaxQueryDepth(int $maxQueryDepth): void
{
/** @var QueryDepth $queryDepth */
$queryDepth = DocumentValidator::getRule(QueryDepth::class);
$queryDepth->setMaxQueryDepth($maxQueryDepth);
}
public function setMaxQueryComplexity(int $maxQueryComplexity): void
{
/** @var QueryComplexity $queryComplexity */
$queryComplexity = DocumentValidator::getRule(QueryComplexity::class);
$queryComplexity->setMaxQueryComplexity($maxQueryComplexity);
}
public function enableIntrospectionQuery(): void
{
DocumentValidator::addRule(new DisableIntrospection(DisableIntrospection::DISABLED));
}
public function disableIntrospectionQuery(): void
{
DocumentValidator::addRule(new DisableIntrospection());
}
/**
* @param array|ArrayObject|object|null $rootValue
*/
public function execute(?string $schemaName, array $request, $rootValue = null): ExecutionResult
{
// TODO: remove following if-block in 1.0
if (method_exists(GraphQL::class, 'useExperimentalExecutor')) {
$this->useExperimentalExecutor ? GraphQL::useExperimentalExecutor() : GraphQL::useReferenceExecutor();
}
$schema = $this->getSchema($schemaName);
/** @var string $schemaName */
$schemaName = array_search($schema, $this->schemas);
$executorArgumentsEvent = $this->preExecute(
$schemaName,
$schema,
$request[ParserInterface::PARAM_QUERY] ?? null,
new ArrayObject(),
$rootValue,
$request[ParserInterface::PARAM_VARIABLES],
$request[ParserInterface::PARAM_OPERATION_NAME] ?? null
);
$executorArgumentsEvent->getSchema()->processExtensions();
$result = $this->executor->execute(
$this->promiseAdapter,
$executorArgumentsEvent->getSchema(),
$executorArgumentsEvent->getRequestString(),
$executorArgumentsEvent->getRootValue(),
$executorArgumentsEvent->getContextValue(),
$executorArgumentsEvent->getVariableValue(),
$executorArgumentsEvent->getOperationName(),
$this->defaultFieldResolver
);
$result = $this->postExecute($result, $executorArgumentsEvent);
return $result;
}
/**
* @param mixed $rootValue
*/
private function preExecute(
string $schemaName,
Schema $schema,
string $requestString,
ArrayObject $contextValue,
$rootValue = null,
?array $variableValue = null,
?string $operationName = null
): ExecutorArgumentsEvent {
// @phpstan-ignore-next-line (only for Symfony 4.4)
$this->dispatcher->dispatch(new ExecutorContextEvent($contextValue), Events::EXECUTOR_CONTEXT);
/** @var ExecutorArgumentsEvent $object */
// @phpstan-ignore-next-line (only for Symfony 4.4)
$object = $this->dispatcher->dispatch(
// @phpstan-ignore-next-line
ExecutorArgumentsEvent::create($schemaName, $schema, $requestString, $contextValue, $rootValue, $variableValue, $operationName),
Events::PRE_EXECUTOR
);
return $object;
}
private function postExecute(ExecutionResult $result, ExecutorArgumentsEvent $executorArguments): ExecutionResult
{
// @phpstan-ignore-next-line (only for Symfony 4.4)
return $this->dispatcher->dispatch(
new ExecutorResultEvent($result, $executorArguments),
Events::POST_EXECUTOR
)->getResult();
}
}

vendor/overblog/graphql-bundle/src/Request/Executor.php line 157