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<?php declare(strict_types=1); |
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namespace Stratadox\Proxy; |
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use Stratadox\Proxy\When\KeyMatches; |
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/** |
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* CompositeProxyFactory. Creates a proxy, choosing its concrete implementation |
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* based on the known data for the proxied entity. |
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* |
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* @author Stratadox |
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*/ |
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final class CompositeProxyFactory implements ProxyFactory |
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{ |
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private $choices; |
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private function __construct(Choice ...$choices) |
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{ |
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$this->choices = $choices; |
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} |
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/** |
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* Makes a new composite factory that decides on a proxy implementation |
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* based on a key. |
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* |
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* @param string $key The key to check for. |
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* @param array $factories A set of expected values with associated factory. |
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* @return ProxyFactory The composite factory that decides based on a key. |
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*/ |
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public static function decidingBy(string $key, array $factories): ProxyFactory |
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{ |
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$choices = []; |
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foreach ($factories as $value => $factory) { |
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$choices[] = Maybe::the($factory, KeyMatches::with($key, $value)); |
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} |
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return new self(...$choices); |
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} |
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/** |
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* Makes a new composite factory that decides on a proxy implementation |
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* based on a set of choices. |
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* |
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* @param Choice ...$choices The choices to involve. |
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* @return ProxyFactory The composite factory. |
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*/ |
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public static function using(Choice ...$choices): ProxyFactory |
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{ |
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return new self(...$choices); |
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} |
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/** @inheritdoc */ |
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public function create(array $knownData = []): Proxy |
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{ |
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foreach ($this->choices as $choice) { |
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if ($choice->shouldUseFor($knownData)) { |
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return $choice->create($knownData); |
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} |
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} |
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throw NoFactoryFound::forData($knownData); |
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} |
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} |
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Stratadox /
Proxy
