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<?php |
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namespace DDDominio\EventSourcing\Snapshotting; |
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use DDDominio\EventSourcing\Common\EventSourcedAggregateRootInterface; |
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abstract class ReflectionSnapshotTranslator implements SnapshotTranslatorInterface |
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{ |
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/** |
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* @return string |
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*/ |
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abstract protected function aggregateClass(); |
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/** |
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* @return string |
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*/ |
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abstract protected function snapshotClass(); |
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/** |
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* @return array |
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*/ |
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abstract protected function aggregateToSnapshotPropertyDictionary(); |
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/** |
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* @param EventSourcedAggregateRootInterface $aggregate |
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* @return object |
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*/ |
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public function buildSnapshotFromAggregate($aggregate) |
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{ |
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$snapshotClass = $this->snapshotClass(); |
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$snapshot = (new \ReflectionClass($snapshotClass))->newInstanceWithoutConstructor(); |
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$reflectedClass = new \ReflectionClass($snapshotClass); |
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$dictionary = $this->aggregateToSnapshotPropertyDictionary(); |
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foreach ($dictionary as $aggregateProperty => $snapshotProperty) { |
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$nameProperty = $reflectedClass->getProperty($snapshotProperty); |
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$nameProperty->setAccessible(true); |
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$nameProperty->setValue($snapshot, $aggregate->$aggregateProperty()); |
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} |
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return $snapshot; |
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} |
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/** |
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* @param SnapshotInterface $snapshot |
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* @return object |
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*/ |
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public function buildAggregateFromSnapshot($snapshot) |
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{ |
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$aggregateClass = $this->aggregateClass(); |
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$aggregate = (new \ReflectionClass($aggregateClass))->newInstanceWithoutConstructor(); |
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$reflectedClass = new \ReflectionClass($aggregateClass); |
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$dictionary = $this->aggregateToSnapshotPropertyDictionary(); |
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unset($dictionary['version']); |
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$this->setPropertyValue('version', $snapshot->version(), $aggregate, $reflectedClass->getParentClass()); |
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foreach ($dictionary as $aggregateProperty => $snapshotProperty) { |
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$this->setPropertyValue( |
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$aggregateProperty, |
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$snapshot->$snapshotProperty(), |
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$aggregate, |
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$reflectedClass |
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); |
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} |
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return $aggregate; |
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} |
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/** |
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* @param string $propertyName |
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* @param string $propertyValue |
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* @param object $aggregate |
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* @param \ReflectionClass $reflectedClass |
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*/ |
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private function setPropertyValue($propertyName, $propertyValue, $aggregate, $reflectedClass) |
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{ |
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$nameProperty = $reflectedClass->getProperty($propertyName); |
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$nameProperty->setAccessible(true); |
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$nameProperty->setValue($aggregate, $propertyValue); |
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} |
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} |
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DDDominio /
event-sourcing
