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<?php |
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namespace LegalThings\DataEnricher; |
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use LegalThings\DataEnricher\Processor; |
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use GuzzleHttp\Promise\PromiseInterface; |
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/** |
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* An object with processing instructions |
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*/ |
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class Node extends \stdClass |
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{ |
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/** |
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* The processed data |
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* @var mixed |
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*/ |
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protected $i_result; |
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/** |
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* Class constructor |
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* |
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* @param \stdClass $data |
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*/ |
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public function __construct(\stdClass $data) |
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{ |
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$this->i_result = $data; |
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foreach ($data as $key => $value) { |
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if ($key === 'i_result') { |
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continue; |
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} |
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$this->$key = $value; |
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} |
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} |
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/** |
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* Replace nodes with their results |
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* |
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* @param array|object $target |
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*/ |
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View Code Duplication |
protected function applyNodeResults(&$target) |
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{ |
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if ($target instanceof self) { |
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$target = $target->getResult(); |
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$this->applyNodeResults($target); |
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} elseif (is_array($target) || is_object($target)) { |
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foreach ($target as &$value) { |
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$this->applyNodeResults($value); |
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} |
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} |
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} |
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/** |
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* Get the processed result |
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* |
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* @return mixed |
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*/ |
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public function getResult() |
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{ |
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if ($this->i_result instanceof PromiseInterface) { |
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$this->i_result->wait(); |
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if ($this->i_result instanceof PromiseInterface) { |
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throw new \LogicException("Promise result not replaced with data"); |
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} |
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} |
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$result = $this->i_result; |
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$this->applyNodeResults($result); |
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return $result; |
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} |
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/** |
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* Set the result after processing |
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* |
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* @param mixed $result |
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*/ |
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public function setResult($result) |
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{ |
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$this->i_result = $result; |
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} |
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/** |
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* Test if the node has an instruction for a processor |
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* |
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* @param Processor $processor |
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* @return boolean |
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*/ |
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public function hasInstruction(Processor $processor) |
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{ |
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$prop = $processor->getProperty(); |
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return isset($this->$prop); |
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} |
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/** |
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* Get an instruction for a processor |
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* |
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* @param Processor $processor |
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* @return mixed |
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*/ |
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public function getInstruction(Processor $processor) |
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{ |
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$prop = $processor->getProperty(); |
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if (!isset($this->$prop)) { |
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throw new \LogicException("Node doesn't have instruction property '$prop'"); |
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} |
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return $this->resolve($this->$prop); |
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} |
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/** |
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* Resolve nodes within the value |
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* |
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* @param mixed $value |
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* @return mixed |
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*/ |
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View Code Duplication |
protected function resolve($value) |
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{ |
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while ($value instanceof self) { |
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$value = $value->getResult(); |
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} |
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if (is_array($value) || is_object($value)) { |
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foreach ($value as &$item) { |
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$item = $this->resolve($item); |
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} |
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} |
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return $value; |
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} |
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/** |
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* Apply processing to this node |
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* |
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* @param Processor $processor |
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*/ |
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public function apply(Processor $processor) |
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{ |
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if (!$this->hasInstruction($processor)) { |
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return; |
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} |
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if ($this->i_result instanceof PromiseInterface) { |
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$this->i_result->then(function() use ($processor) { |
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$processor->applyToNode($this); |
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}); |
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} else { |
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$processor->applyToNode($this); |
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} |
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} |
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} |
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legalthings /
data-enricher
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