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<?php |
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declare(strict_types=1); |
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namespace Cycle\Schema\Provider\Support; |
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use Cycle\Schema\Provider\Exception\BadDeclarationException; |
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use Cycle\Schema\Provider\SchemaProviderInterface; |
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use Psr\Container\ContainerInterface; |
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/** |
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* Auxiliary class for building scheme providers in a pipeline. |
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*/ |
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final class DeferredSchemaProviderDecorator implements SchemaProviderInterface |
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{ |
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private SchemaProviderInterface|string $provider; |
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private array $config = []; |
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private ?self $nextProvider; |
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private ?SchemaProviderInterface $latestProvider = null; |
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private bool $resolved = false; |
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private ContainerInterface $container; |
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public function __construct( |
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ContainerInterface $container, |
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SchemaProviderInterface|string $provider, |
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?self $nextProvider |
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) { |
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$this->provider = $provider; |
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$this->container = $container; |
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$this->nextProvider = $nextProvider; |
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} |
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/** |
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* @throws BadDeclarationException |
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*/ |
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public function withConfig(array $config): self |
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{ |
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$provider = !$this->resolved && count($this->config) === 0 ? $this->provider : $this->getProvider(); |
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$new = new self($this->container, $provider, $this->nextProvider); |
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$new->config = $config; |
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return $new; |
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} |
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/** |
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* @throws BadDeclarationException |
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*/ |
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public function read(?SchemaProviderInterface $nextProvider = null): ?array |
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{ |
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$nextProvider ??= $this->latestProvider; |
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if ($nextProvider !== null && $this->nextProvider !== null) { |
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$nextProvider = $this->nextProvider->withLatestProvider($nextProvider); |
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} else { |
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$nextProvider = $this->nextProvider ?? $nextProvider; |
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} |
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return $this->getProvider()->read($nextProvider); |
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} |
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public function clear(): bool |
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{ |
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return $this->getProvider()->clear(); |
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} |
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/** |
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* @psalm-suppress InvalidReturnType,InvalidReturnStatement |
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* @throws BadDeclarationException |
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*/ |
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private function getProvider(): SchemaProviderInterface |
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{ |
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if ($this->resolved) { |
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return $this->provider; |
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} |
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$provider = $this->provider; |
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if (\is_string($provider)) { |
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$provider = $this->container->get($provider); |
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} |
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if (!$provider instanceof SchemaProviderInterface) { |
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throw new BadDeclarationException('Provider', SchemaProviderInterface::class, $provider); |
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} |
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$this->provider = \count($this->config) > 0 ? $provider->withConfig($this->config) : $provider; |
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$this->resolved = true; |
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return $this->provider; |
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} |
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/** |
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* @throws BadDeclarationException |
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*/ |
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private function withLatestProvider(SchemaProviderInterface $provider): self |
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{ |
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// resolve provider |
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$this->getProvider(); |
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$new = clone $this; |
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$new->latestProvider = $provider; |
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return $new; |
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} |
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} |
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cycle /
schema-provider
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