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<?php |
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declare(strict_types=1); |
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namespace Remorhaz\JSON\Patch\Query; |
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use Iterator; |
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use Remorhaz\JSON\Data\Export\ValueDecoderInterface; |
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use Remorhaz\JSON\Data\Export\ValueEncoderInterface; |
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use Remorhaz\JSON\Data\Value\ArrayValueInterface; |
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use Remorhaz\JSON\Data\Value\NodeValueInterface; |
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use Remorhaz\JSON\Patch\Operation\OperationFactoryInterface; |
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use Remorhaz\JSON\Patch\Result\ResultInterface; |
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use Remorhaz\JSON\Pointer\Processor\ProcessorInterface as PointerProcessorInterface; |
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use Throwable; |
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final class LazyQuery implements QueryInterface |
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{ |
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private $operationFactory; |
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private $encoder; |
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private $decoder; |
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private $patch; |
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private $loadedQuery; |
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public function __construct( |
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OperationFactoryInterface $operationFactory, |
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ValueEncoderInterface $encoder, |
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ValueDecoderInterface $decoder, |
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NodeValueInterface $patch |
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) { |
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$this->operationFactory = $operationFactory; |
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$this->encoder = $encoder; |
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$this->decoder = $decoder; |
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$this->patch = $patch; |
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} |
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public function __invoke(NodeValueInterface $data, PointerProcessorInterface $pointerProcessor): ResultInterface |
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{ |
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return $this->getLoadedQuery()($data, $pointerProcessor); |
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} |
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private function getLoadedQuery(): QueryInterface |
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{ |
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if (!isset($this->loadedQuery)) { |
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$this->loadedQuery = $this->loadQuery(); |
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} |
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return $this->loadedQuery; |
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} |
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private function loadQuery(): QueryInterface |
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{ |
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$operations = []; |
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try { |
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foreach ($this->createOperationDataIterator($this->patch) as $index => $operationData) { |
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$operations[] = $this |
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->operationFactory |
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->fromJson($operationData, $index); |
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} |
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} catch (Throwable $e) { |
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throw new Exception\PatchNotLoadedException($this->patch, $e); |
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} |
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return new Query($this->encoder, $this->decoder, ...$operations); |
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} |
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private function createOperationDataIterator(NodeValueInterface $patch): Iterator |
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{ |
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if ($patch instanceof ArrayValueInterface) { |
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return $patch->createChildIterator(); |
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} |
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throw new Exception\InvalidPatchException($patch); |
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} |
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} |
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remorhaz /
php-json-patch
