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<?php |
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/** |
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* NextFlow (http://github.com/nextflow) |
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* |
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* @link http://github.com/nextflow/nextflow-php for the canonical source repository |
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* @copyright Copyright (c) 2014-2016 NextFlow (http://github.com/nextflow) |
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* @license https://raw.github.com/nextflow/nextflow-php/master/LICENSE MIT |
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*/ |
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namespace NextFlow\Arrays\Action; |
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use InvalidArgumentException; |
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use NextFlow\Core\Action\AbstractAction; |
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use NextFlow\Core\Node\NodeInterface; |
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/** |
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* A base final class for pop actions. |
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*/ |
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abstract class AbstractPopAction extends AbstractAction |
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{ |
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/** The output action socket. */ |
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const SOCKET_OUTPUT = 'out'; |
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/** The array variable socket. */ |
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const SOCKET_ARRAY = 'array'; |
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/** The data variable socket. */ |
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const SOCKET_DATA = 'data'; |
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/** |
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* Initializes a new instance of this class. |
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*/ |
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public function __construct() |
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{ |
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parent::__construct(); |
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$this->createSocket(self::SOCKET_OUTPUT); |
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$this->createSocket(self::SOCKET_ARRAY); |
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$this->createSocket(self::SOCKET_DATA); |
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} |
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/** |
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* Executes the node's logic. |
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*/ |
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public function execute() |
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{ |
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$array = $this->getSocket(self::SOCKET_ARRAY)->getNode(0); |
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if ($array === null) { |
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throw new InvalidArgumentException('No array variable provided.'); |
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} |
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$poppedValue = $this->executePop($array); |
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$dataSocket = $this->getSocket(self::SOCKET_DATA); |
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if ($dataSocket->hasNodes()) { |
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$dataSocket->getNode(0)->setValue($poppedValue); |
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} |
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$this->activate(self::SOCKET_OUTPUT); |
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} |
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/** |
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* Executes the pop logic. |
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* |
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* @param NodeInterface $node The node to pop data from. |
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* @return mixed |
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*/ |
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abstract protected function executePop(NodeInterface $node); |
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} |
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nextflow /
nextflow-php
