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<?php |
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declare(strict_types=1); |
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namespace Remorhaz\JSON\Patch\Operation; |
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use Remorhaz\JSON\Data\Comparator\ComparatorInterface; |
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use Remorhaz\JSON\Data\Value\NodeValueInterface; |
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use Remorhaz\JSON\Pointer\Processor\ProcessorInterface as PointerProcessorInterface; |
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use Remorhaz\JSON\Pointer\Query\QueryFactoryInterface as PointerQueryFactoryInterface; |
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use Remorhaz\JSON\Pointer\Query\QueryInterface; |
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use function is_string; |
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final class OperationFactory implements OperationFactoryInterface |
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{ |
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private const OPERATION_ADD = 'add'; |
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private const OPERATION_REMOVE = 'remove'; |
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private const OPERATION_REPLACE = 'replace'; |
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private const OPERATION_TEST = 'test'; |
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private const OPERATION_COPY = 'copy'; |
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private const OPERATION_MOVE = 'move'; |
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private const POINTER_PATH = 'path'; |
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private const POINTER_FROM = 'from'; |
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private $pointerQueryFactory; |
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private $pointerProcessor; |
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private $equalComparator; |
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public function __construct( |
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PointerQueryFactoryInterface $pointerQueryFactory, |
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PointerProcessorInterface $pointerProcessor, |
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ComparatorInterface $equalComparator |
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) { |
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$this->pointerQueryFactory = $pointerQueryFactory; |
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$this->pointerProcessor = $pointerProcessor; |
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$this->equalComparator = $equalComparator; |
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} |
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public function fromJson(NodeValueInterface $jsonValue, int $index): OperationInterface |
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{ |
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$operationCode = $this->getOperationCode($jsonValue, $index); |
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switch ($operationCode) { |
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case self::OPERATION_ADD: |
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return new AddOperation( |
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$index, |
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$this->extractPathPointer($jsonValue, self::POINTER_PATH, $index), |
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$this->extractValue($jsonValue, $index) |
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); |
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case self::OPERATION_REMOVE: |
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return new RemoveOperation( |
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$index, |
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$this->extractPathPointer($jsonValue, self::POINTER_PATH, $index) |
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); |
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case self::OPERATION_REPLACE: |
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return new ReplaceOperation( |
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$index, |
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$this->extractPathPointer($jsonValue, self::POINTER_PATH, $index), |
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$this->extractValue($jsonValue, $index) |
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); |
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case self::OPERATION_TEST: |
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return new TestOperation( |
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$index, |
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$this->extractPathPointer($jsonValue, self::POINTER_PATH, $index), |
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$this->extractValue($jsonValue, $index), |
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$this->equalComparator |
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); |
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case self::OPERATION_COPY: |
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return new CopyOperation( |
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$index, |
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$this->extractPathPointer($jsonValue, self::POINTER_PATH, $index), |
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$this->extractPathPointer($jsonValue, self::POINTER_FROM, $index) |
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); |
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case self::OPERATION_MOVE: |
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return new MoveOperation( |
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$index, |
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$this->extractPathPointer($jsonValue, self::POINTER_PATH, $index), |
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$this->extractPathPointer($jsonValue, self::POINTER_FROM, $index) |
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); |
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} |
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throw new Exception\UnknownOperationCodeException($index, $operationCode); |
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} |
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private function getOperationCode(NodeValueInterface $jsonValue, int $index): string |
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{ |
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$result = $this |
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->pointerProcessor |
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->select($this->pointerQueryFactory->createQuery('/op'), $jsonValue); |
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if (!$result->exists()) { |
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throw new Exception\OperationCodeNotFoundException($index); |
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} |
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$operationCode = $result->decode(); |
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if (is_string($operationCode)) { |
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return $operationCode; |
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} |
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throw new Exception\InvalidOperationCodeException($operationCode, $index); |
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} |
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private function extractPathPointer(NodeValueInterface $operation, string $property, int $index): QueryInterface |
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{ |
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$result = $this |
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->pointerProcessor |
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->select($this->pointerQueryFactory->createQuery("/{$property}"), $operation); |
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if (!$result->exists()) { |
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throw new Exception\PathNotFoundException($index, $property); |
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} |
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$path = $result->decode(); |
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if (!is_string($path)) { |
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throw new Exception\InvalidPathException($index, $property, $path); |
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} |
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return $this |
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->pointerQueryFactory |
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->createQuery($path); |
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} |
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private function extractValue(NodeValueInterface $operation, int $index): NodeValueInterface |
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{ |
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$result = $this |
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->pointerProcessor |
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->select($this->pointerQueryFactory->createQuery('/value'), $operation); |
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if ($result->exists()) { |
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return $result->get(); |
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} |
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throw new Exception\ValueNotFoundException($index); |
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} |
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} |
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remorhaz /
php-json-patch
