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<?php
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/**
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* Slim Framework (https://slimframework.com)
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*
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* @license https://github.com/slimphp/Slim/blob/4.x/LICENSE.md (MIT License)
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*/
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declare(strict_types=1);
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namespace Slim\Factory\Psr17;
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use Psr\Http\Message\ResponseFactoryInterface;
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use Psr\Http\Message\StreamFactoryInterface;
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use RuntimeException;
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use Slim\Interfaces\Psr17FactoryInterface;
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use Slim\Interfaces\ServerRequestCreatorInterface;
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use function class_exists;
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use function get_called_class;
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abstract class Psr17Factory implements Psr17FactoryInterface
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{
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protected static string $responseFactoryClass;
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protected static string $streamFactoryClass;
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protected static string $serverRequestCreatorClass;
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protected static string $serverRequestCreatorMethod;
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/**
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* {@inheritdoc}
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*/
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public static function getResponseFactory(): ResponseFactoryInterface
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{
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if (
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!static::isResponseFactoryAvailable()
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|| !(($responseFactory = new static::$responseFactoryClass()) instanceof ResponseFactoryInterface)
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) {
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throw new RuntimeException(get_called_class() . ' could not instantiate a response factory.');
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}
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return $responseFactory;
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}
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/**
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* {@inheritdoc}
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*/
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public static function getStreamFactory(): StreamFactoryInterface
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{
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if (
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!static::isStreamFactoryAvailable()
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|| !(($streamFactory = new static::$streamFactoryClass()) instanceof StreamFactoryInterface)
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) {
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throw new RuntimeException(get_called_class() . ' could not instantiate a stream factory.');
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}
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return $streamFactory;
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}
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/**
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* {@inheritdoc}
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*/
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public static function getServerRequestCreator(): ServerRequestCreatorInterface
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{
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if (!static::isServerRequestCreatorAvailable()) {
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throw new RuntimeException(get_called_class() . ' could not instantiate a server request creator.');
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}
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return new ServerRequestCreator(static::$serverRequestCreatorClass, static::$serverRequestCreatorMethod);
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}
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/**
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* {@inheritdoc}
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*/
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public static function isResponseFactoryAvailable(): bool
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{
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return static::$responseFactoryClass && class_exists(static::$responseFactoryClass);
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}
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/**
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* {@inheritdoc}
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*/
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public static function isStreamFactoryAvailable(): bool
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{
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return static::$streamFactoryClass && class_exists(static::$streamFactoryClass);
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}
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/**
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* {@inheritdoc}
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*/
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public static function isServerRequestCreatorAvailable(): bool
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{
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return (
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static::$serverRequestCreatorClass
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&& static::$serverRequestCreatorMethod
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&& class_exists(static::$serverRequestCreatorClass)
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);
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}
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}
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