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<?php |
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namespace Coco\SourceWatcher\Core; |
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use Iterator; |
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/** |
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* Class Pipeline |
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* @package Coco\SourceWatcher\Core |
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*/ |
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class Pipeline implements Iterator |
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{ |
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/** |
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* @var Extractor |
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*/ |
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private ?Extractor $extractor = null; |
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/** |
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* @var array |
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*/ |
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private array $steps = []; |
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/** |
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* @var array |
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*/ |
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private array $results = []; |
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public function __construct () |
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{ |
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} |
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/** |
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* @return Extractor |
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*/ |
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public function getExtractor () : Extractor |
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{ |
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return $this->extractor; |
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} |
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/** |
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* @param Extractor $extractor |
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*/ |
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public function setExtractor ( Extractor $extractor ) : void |
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{ |
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$this->extractor = $extractor; |
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} |
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/** |
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* @return array |
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*/ |
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public function getSteps () : array |
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{ |
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return $this->steps; |
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} |
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/** |
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* @param array $steps |
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*/ |
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public function setSteps ( array $steps ) : void |
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{ |
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$this->steps = $steps; |
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} |
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/** |
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* @return array |
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*/ |
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public function getResults () : array |
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{ |
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return $this->results; |
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} |
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/** |
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* @param array $results |
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*/ |
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public function setResults ( array $results ) : void |
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{ |
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$this->results = $results; |
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} |
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private int $index = 0; |
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public function current () |
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{ |
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return $this->results[$this->index]; |
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} |
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public function next () |
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{ |
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$this->index++; |
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} |
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public function key () |
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{ |
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return $this->index; |
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} |
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public function valid () |
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{ |
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return isset( $this->results[$this->key()] ); |
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} |
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public function rewind () |
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{ |
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$this->index = 0; |
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} |
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/** |
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* @param Step $step |
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*/ |
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public function pipe ( Step $step ) : void |
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{ |
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$this->steps[] = $step; |
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} |
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public function execute () : void |
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{ |
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$this->results = $this->extractor->extract(); |
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foreach ( $this->steps as $currentStep ) { |
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if ( $currentStep instanceof Transformer ) { |
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foreach ( $this->results as $currentIndex => $currentItem ) { |
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$currentStep->transform( $this->results[$currentIndex] ); |
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} |
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} |
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if ( $currentStep instanceof Loader ) { |
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foreach ( $this->results as $currentIndex => $currentItem ) { |
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$currentStep->load( $currentItem ); |
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} |
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} |
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} |
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} |
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} |
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TheCocoTeam /
source-watcher-core
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