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by Gaetano
08:02
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LoopExecutor::__construct()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 5
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 5
rs 9.4285
c 0
b 0
f 0
cc 1
eloc 3
nc 1
nop 2
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<?php
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namespace Kaliop\eZMigrationBundle\Core\Executor;
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use Kaliop\eZMigrationBundle\API\Value\MigrationStep;
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use Kaliop\eZMigrationBundle\Core\MigrationService;
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use Kaliop\eZMigrationBundle\Core\ReferenceResolver\LoopResolver;
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class LoopExecutor extends AbstractExecutor
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{
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    use IgnorableStepExecutorTrait;
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    protected $supportedStepTypes = array('loop');
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    /** @var MigrationService $migrationService */
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    protected $migrationService;
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    /** @var LoopResolver $loopResolver */
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    protected $loopResolver;
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    public function __construct($migrationService, $loopResolver)
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    {
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        $this->migrationService = $migrationService;
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        $this->loopResolver = $loopResolver;
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    }
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    /**
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     * @param MigrationStep $step
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     * @return mixed
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     * @throws \Exception
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     */
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    public function execute(MigrationStep $step)
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    {
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        parent::execute($step);
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        if (!isset($step->dsl['repeat']) || $step->dsl['repeat'] < 0) {
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            throw new \Exception("Invalid step definition: missing 'repeat' or not a positive integer");
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        }
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        if (!isset($step->dsl['steps']) || !is_array($step->dsl['steps'])) {
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            throw new \Exception("Invalid step definition: missing 'steps' or not an array");
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        }
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        // no need for a 'mode' for now
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        /*$action = $step->dsl['mode'];
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        if (!in_array($action, $this->supportedActions)) {
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            throw new \Exception("Invalid step definition: value '$action' is not allowed for 'mode'");
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        }*/
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        $this->skipStepIfNeeded($step);
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        // before engaging in the loop, check that all steps are valid
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        $stepExecutors = array();
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        foreach ($step->dsl['steps'] as $i => $stepDef) {
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            $type = $stepDef['type'];
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            try {
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                $stepExecutors[$i] = $this->migrationService->getExecutor($type);
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            } catch (\InvalidArgumentException $e) {
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                throw new \InvalidArgumentException($e->getMessage() . " in sub-step of a loop step");
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            }
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        }
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        $this->loopResolver->beginLoop();
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        $result = null;
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        // NB: we are *not* firing events for each pass of the loop... it might be worth making that optionally happen ?
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        for ($i = 0; $i < $step->dsl['repeat']; $i++) {
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            $this->loopResolver->loopStep();
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            foreach ($step->dsl['steps'] as $j => $stepDef) {
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                $type = $stepDef['type'];
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                unset($stepDef['type']);
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                $subStep = new MigrationStep($type, $stepDef, array_merge($step->context, array()));
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                $result = $stepExecutors[$j]->execute($subStep);
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            }
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        }
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        $this->loopResolver->endLoop();
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        return $result;
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    }
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}
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