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<?php |
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/* this file is part of pipelines */ |
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namespace Ktomk\Pipelines; |
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use Ktomk\Pipelines\File\ParseException; |
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class Pipeline |
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{ |
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/** |
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* @var File |
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*/ |
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private $file; |
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/** |
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* @var array|Step[] |
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*/ |
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private $steps; |
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/** |
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* Pipeline constructor. |
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* @param File $file |
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* @param array $definition |
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* @throws \Ktomk\Pipelines\File\ParseException |
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*/ |
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public function __construct(File $file, array $definition) |
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{ |
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// quick validation |
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if (!isset($definition[0])) { |
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ParseException::__("Pipeline requires a list of steps"); |
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} |
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$this->file = $file; |
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$this->steps = $this->parseSteps($definition); |
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} |
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/** |
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* @return File |
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*/ |
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public function getFile() |
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{ |
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return $this->file; |
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} |
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/** |
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* get id of pipeline within the corresponding file object |
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* |
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* @return null|string id, can be null in fake/test conditions |
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*/ |
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public function getId() |
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{ |
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return $this->file->getIdFrom($this); |
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} |
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/** |
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* @return array|Step[] |
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*/ |
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public function getSteps() |
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{ |
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return $this->steps; |
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} |
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/** |
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* Specify data which should be serialized to JSON |
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* |
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* @return array |
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* @since 5.4.0 |
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*/ |
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public function jsonSerialize() |
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{ |
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$steps = array(); |
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foreach ($this->steps as $step) { |
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$steps[] = $step->jsonSerialize(); |
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} |
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return array( |
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'steps' => $steps, |
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); |
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} |
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/** |
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* @param array $definition |
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* @throws \Ktomk\Pipelines\File\ParseException |
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* @return array |
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*/ |
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private function parseSteps(array $definition) { |
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$steps = array(); |
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foreach ($definition as $index => $step) { |
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if (!is_array($step)) { |
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ParseException::__("Pipeline requires a list of steps"); |
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} |
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$steps[] = $this->step($step); |
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} |
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return $steps; |
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} |
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/** |
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* @param array $step |
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* @throws \Ktomk\Pipelines\File\ParseException |
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* @return Step |
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*/ |
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private function step(array $step) |
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{ |
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if (!isset($step['step'])) { |
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ParseException::__( |
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"Missing required property 'step'" |
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); |
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} |
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return new Step($this, $step['step']); |
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} |
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} |
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