57 lines
1.4 KiB
PHP
57 lines
1.4 KiB
PHP
<?php
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namespace App\Framework\DI;
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use App\Framework\DI\Exceptions\LazyLoadingException;
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use App\Framework\Reflection\ReflectionProvider;
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use Closure;
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/**
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* Behandelt Lazy Loading von Objekten
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*/
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final class LazyInstantiator
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{
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private array $factories = [];
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public function __construct(
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private readonly ReflectionProvider $reflectionProvider,
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private readonly Closure $instanceCreator
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) {}
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public function canUseLazyLoading(string $class, InstanceRegistry $registry): bool
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{
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return !$registry->hasSingleton($class);
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}
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public function createLazyInstance(string $class): object
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{
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$reflection = $this->reflectionProvider->getClass($class);
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if (!isset($this->factories[$class])) {
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$this->factories[$class] = fn() => ($this->instanceCreator)($class);
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}
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$factory = $this->factories[$class];
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if (method_exists($reflection, 'getLazyGhost')) {
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return $reflection->getLazyGhost($factory);
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}
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if (method_exists($reflection, 'getLazyProxy')) {
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return $reflection->getLazyProxy($factory);
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}
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throw new LazyLoadingException("Lazy loading not supported for class: {$class}");
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}
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public function forgetFactory(string $class): void
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{
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unset($this->factories[$class]);
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}
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public function flushFactories(): void
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{
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$this->factories = [];
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}
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}
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