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<?php |
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declare(strict_types=1); |
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namespace Remorhaz\JSON\Path\Runtime\Aggregator; |
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use function array_map; |
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use function is_float; |
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use function is_int; |
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use Remorhaz\JSON\Data\Value\ArrayValueInterface; |
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use Remorhaz\JSON\Data\Value\ScalarValueInterface; |
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use Remorhaz\JSON\Data\Value\ValueInterface; |
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abstract class NumericAggregator implements ValueAggregatorInterface |
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{ |
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abstract protected function aggregateNumericData( |
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array $dataList, |
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ScalarValueInterface ...$elements |
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): ?ValueInterface; |
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final public function tryAggregate(ValueInterface $value): ?ValueInterface |
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{ |
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$numericElements = $this->findNumericElements($value); |
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if (empty($numericElements)) { |
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return null; |
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} |
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return $this->aggregateNumericData( |
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$this->getElementDataList(...$numericElements), |
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...$numericElements |
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); |
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} |
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protected function findNumericElement(ValueInterface $element): ?ScalarValueInterface |
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{ |
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if (!$element instanceof ScalarValueInterface) { |
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return null; |
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} |
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$elementData = $element->getData(); |
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return is_int($elementData) || is_float($elementData) |
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? $element |
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: null; |
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} |
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/** |
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* @param ValueInterface $value |
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* @return ScalarValueInterface[] |
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*/ |
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protected function findNumericElements(ValueInterface $value): array |
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{ |
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$numericElements = []; |
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if (!$value instanceof ArrayValueInterface) { |
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return $numericElements; |
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} |
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foreach ($value->createChildIterator() as $element) { |
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$numericElement = $this->findNumericElement($element); |
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if (isset($numericElement)) { |
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$numericElements[] = $numericElement; |
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} |
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} |
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return $numericElements; |
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} |
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protected function getElementDataList(ScalarValueInterface ...$elements): array |
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{ |
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return array_map([$this, 'getElementData'], $elements); |
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} |
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private function getElementData(ScalarValueInterface $element) |
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{ |
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return $element->getData(); |
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} |
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} |
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remorhaz /
php-json-path
