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<?php declare(strict_types = 1); |
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namespace Portiny\GraphQL\GraphQL\Schema; |
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use Closure; |
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use GraphQL\Language\AST\DocumentNode; |
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use GraphQL\Language\Parser; |
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use GraphQL\Type\Definition\ObjectType; |
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use GraphQL\Type\Definition\ResolveInfo; |
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use GraphQL\Type\Schema; |
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use GraphQL\Utils\AST; |
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use GraphQL\Utils\BuildSchema; |
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use GraphQL\Utils\SchemaPrinter; |
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use Portiny\GraphQL\Contract\Provider\MutationFieldsProviderInterface; |
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use Portiny\GraphQL\Contract\Provider\QueryFieldsProviderInterface; |
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use Portiny\GraphQL\GraphQL\Type\Types; |
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final class SchemaCacheProvider |
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{ |
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/** |
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* @var string |
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*/ |
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private $cacheDir; |
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/** |
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* @var QueryFieldsProviderInterface |
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*/ |
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private $queryFieldsProvider; |
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/** |
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* @var MutationFieldsProviderInterface |
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*/ |
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private $mutationFieldsProvider; |
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/** |
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* @var Schema |
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*/ |
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private $schema; |
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public function __construct( |
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string $cacheDir, |
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QueryFieldsProviderInterface $queryFieldsProvider, |
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MutationFieldsProviderInterface $mutationFieldsProvider |
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) { |
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$this->cacheDir = $cacheDir; |
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$this->queryFieldsProvider = $queryFieldsProvider; |
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$this->mutationFieldsProvider = $mutationFieldsProvider; |
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} |
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public function getSchema(string $cacheKey): ?Schema |
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{ |
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if ($this->schema !== null) { |
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return $this->schema; |
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} |
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// load types from cache |
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$cacheContent = file_get_contents($this->getTypesCacheFile($cacheKey)); |
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if ($cacheContent === false) { |
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return null; |
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} |
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Types::loadTypesFromClasses(unserialize($cacheContent)); |
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// load schema from cache |
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/** @var DocumentNode $document */ |
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$document = AST::fromArray(require $this->getSchemaCacheFile($cacheKey)); |
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$this->schema = BuildSchema::build($document, $this->getTypeConfigDecorator()); |
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return $this->schema; |
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} |
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public function isCached(string $cacheKey): bool |
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{ |
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return file_exists($this->getSchemaCacheFile($cacheKey)); |
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} |
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public function save(string $cacheKey, Schema $schema): void |
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{ |
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// schema cache |
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$sdl = SchemaPrinter::doPrint($schema); |
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$documentNode = Parser::parse($sdl); |
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file_put_contents( |
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$this->getSchemaCacheFile($cacheKey), |
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"<?php\nreturn " . var_export(AST::toArray($documentNode), true) . ';' |
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); |
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// types cache |
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file_put_contents($this->getTypesCacheFile($cacheKey), serialize(Types::getTypeClasses())); |
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} |
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public function getCacheKey(?array $allowedQueries = null, ?array $allowedMutations = null): string |
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{ |
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return md5(serialize($allowedQueries) . serialize($allowedMutations)); |
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} |
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private function getTypesCacheFile(string $cacheKey): string |
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{ |
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@mkdir($this->cacheDir, 0777, true); //@ - may exists |
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return $this->cacheDir . '/types-' . $cacheKey . '.php'; |
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} |
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private function getSchemaCacheFile(string $cacheKey): string |
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{ |
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@mkdir($this->cacheDir, 0777, true); //@ - may exists |
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return $this->cacheDir . '/schema-' . $cacheKey . '.php'; |
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} |
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private function getTypeConfigDecorator(): Closure |
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{ |
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return function (array $typeConfig) { |
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$typeConfig['resolveField'] = function ($value, $args, $context, ResolveInfo $info) use ($typeConfig) { |
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$fieldName = (string) $info->fieldName; |
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switch ($typeConfig['name']) { |
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case 'Query': |
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$queryField = $this->queryFieldsProvider->getField($fieldName); |
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if ($queryField) { |
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return $queryField->resolve($value, $args, $context); |
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} |
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break; |
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case 'Mutation': |
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$mutationField = $this->mutationFieldsProvider->getField($fieldName); |
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if ($mutationField) { |
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return $mutationField->resolve($value, $args, $context); |
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} |
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break; |
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default: |
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$type = Types::findByName($typeConfig['name']); |
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if ($type instanceof ObjectType) { |
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$fieldNameForResolving = $fieldName; |
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if ($type->hasField($fieldNameForResolving)) { |
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$typeField = $type->getField($fieldNameForResolving); |
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$resolver = $typeField->resolveFn; |
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if (is_callable($resolver)) { |
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return $resolver($value, $args, $context, $info); |
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} |
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} |
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$resolver = $type->resolveFieldFn; |
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if (is_callable($resolver)) { |
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return $resolver($value, $args, $context, $info); |
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} |
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return null; |
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} |
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} |
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return null; |
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}; |
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return $typeConfig; |
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}; |
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} |
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} |
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portiny /
graphql
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