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<?php |
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namespace Coco\SourceWatcher\Core; |
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use Coco\SourceWatcher\Core\Extractors\ExecutionExtractor; |
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use Coco\SourceWatcher\Core\IO\Inputs\ExtractorResultInput; |
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use Iterator; |
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/** |
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* Class Pipeline |
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* |
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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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private array $steps = []; |
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private array $results = []; |
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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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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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public function pipe ( Step $step ) : void |
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{ |
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if ( $step instanceof ExecutionExtractor ) { |
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$step->setInput( new ExtractorResultInput( end( $this->steps ) ) ); |
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} |
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$this->steps[] = $step; |
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} |
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public function execute () : void |
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{ |
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foreach ( $this->steps as $index => $currentStep ) { |
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if ( $currentStep instanceof Extractor ) { |
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$this->results = $currentStep->extract(); |
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} |
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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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public function getResults () : array |
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{ |
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return $this->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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TheCocoTeam /
source-watcher-core
