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<?php |
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/* this file is part of pipelines */ |
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namespace Ktomk\Pipelines\File; |
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use Ktomk\Pipelines\File\Dom\FileNode; |
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use Ktomk\Pipelines\File\Pipeline\Step; |
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use Ktomk\Pipelines\File\Pipeline\Steps; |
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use Ktomk\Pipelines\Value\StepExpression; |
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class Pipeline implements FileNode |
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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 Steps |
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*/ |
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private $steps; |
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/** |
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* Pipeline constructor. |
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* |
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* @param File $file |
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* @param array $definition |
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* |
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* @throws 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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throw new ParseException('Pipeline requires a list of steps'); |
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} |
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$this->file = $file; |
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$this->parsePipeline($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 pipelines 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 $this->file->getPipelines()->getId($this); |
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} |
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/** |
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* @param string $expression [optional] |
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* |
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* @return void |
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*/ |
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public function setStepsExpression($expression = null) |
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{ |
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if (null === $expression) { |
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return; |
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} |
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// parse, resolve early |
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$array = StepExpression::createFromString($expression) |
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->resolveSteps($this->getSteps()); |
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$this->steps->setGetIteratorFunctor(function () use ($array) { |
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return new \ArrayIterator($array); |
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}); |
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} |
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/** |
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* @return Step[]|Steps |
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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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* |
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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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return $this->steps->jsonSerialize(); |
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} |
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private function parsePipeline(array $array) |
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{ |
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$this->steps = new Steps( |
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$this, |
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$this->filterMapList($array, array('step', 'parallel')) |
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); |
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} |
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/** |
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* filter a list (in indexed array) af maps (string indexed array) |
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* with a single entry only |
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* |
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* @param array|array[] $mapList |
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* @param array|string[] $keys |
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* |
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* @return array |
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*/ |
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private function filterMapList(array $mapList, array $keys) |
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{ |
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$result = array(); |
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foreach ($mapList as $map) { |
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if (!is_array($map) || 1 === !count($map)) { |
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continue; |
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} |
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$key = key($map); |
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if (!in_array($key, $keys, true)) { |
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continue; |
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} |
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$value = current($map); |
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$result[] = array($key => $value); |
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} |
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return $result; |
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} |
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} |
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ktomk /
pipelines
