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<?php |
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namespace Cerbero\Dto\Manipulators; |
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/** |
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* The array converter. |
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* |
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*/ |
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class ArrayConverter |
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{ |
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/** |
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* The class instance. |
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* |
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* @var self |
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*/ |
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protected static $instance; |
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/** |
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* The registered conversions. |
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* |
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* @var array |
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*/ |
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protected $conversions = []; |
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/** |
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* The cached value converters. |
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* |
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* @var ValueConverter[] |
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*/ |
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protected $cachedConverters = []; |
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/** |
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* Instantiate the class |
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* |
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*/ |
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protected function __construct() |
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{ |
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// |
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} |
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/** |
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* Retrieve the class instance |
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* |
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* @return self |
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*/ |
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public static function instance(): self |
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{ |
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return static::$instance = static::$instance ?: new static(); |
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} |
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/** |
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* Set the given value conversions |
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* |
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* @param array $conversions |
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* @return self |
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*/ |
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public function setConversions(array $conversions): self |
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{ |
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$this->conversions = $conversions; |
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return $this; |
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} |
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/** |
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* Retrieve the value conversions |
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* |
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* @return array |
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*/ |
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public function getConversions(): array |
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{ |
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return $this->conversions; |
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} |
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/** |
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* Convert the given item into an array |
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* |
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* @param mixed $item |
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* @return mixed |
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*/ |
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public function convert($item) |
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{ |
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if (is_object($item) && $converter = $this->getConverterByInstance($item)) { |
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return $converter->fromDto($item); |
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} |
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if (is_iterable($item)) { |
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$result = []; |
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foreach ($item as $key => $value) { |
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$result[$key] = $this->convert($value); |
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} |
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return $result; |
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} |
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return $item; |
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} |
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/** |
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* Retrieve the converter for the given object instance |
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* |
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* @param object $instance |
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* @return ValueConverter|null |
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*/ |
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public function getConverterByInstance($instance): ?ValueConverter |
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{ |
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$class = get_class($instance); |
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if (isset($this->cachedConverters[$class])) { |
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return $this->cachedConverters[$class]; |
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} |
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foreach ($this->getConversions() as $type => $class) { |
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if (is_a($instance, $type)) { |
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$converter = $this->resolveConverter($class); |
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return $this->cachedConverters[$class] = $this->cachedConverters[$type] = $converter; |
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} |
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} |
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return null; |
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} |
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/** |
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* Retrieve the instance of the given converter |
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* |
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* @param string $converter |
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* @return ValueConverter |
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*/ |
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protected function resolveConverter(string $converter): ValueConverter |
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{ |
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return new $converter(); |
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} |
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/** |
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* Retrieve the converter for the given class |
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* |
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* @param string $class |
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* @return ValueConverter|null |
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*/ |
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public function getConverterByClass(string $class): ?ValueConverter |
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{ |
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if (isset($this->cachedConverters[$class])) { |
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return $this->cachedConverters[$class]; |
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} |
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if ($converter = $this->conversions[$class] ?? null) { |
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return $this->cachedConverters[$class] = $this->resolveConverter($converter); |
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} |
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return null; |
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} |
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} |
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cerbero90 /
dto
