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<?php |
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/** |
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* nextCloud - ocr |
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* |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. See the COPYING file. |
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* |
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* @author Janis Koehr <[email protected]> |
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* @copyright Janis Koehr 2016 |
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*/ |
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namespace OCA\Ocr\Service; |
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use Exception; |
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use OCP\ILogger; |
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/** |
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* Class GearmanWorkerService |
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* |
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* @package OCA\Ocr\Service |
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*/ |
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class GearmanWorkerService { |
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/** |
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* @var ILogger |
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*/ |
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private $logger; |
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/** |
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* GearmanWorkerService constructor. |
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* |
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* @param ILogger $logger |
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*/ |
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public function __construct(ILogger $logger) { |
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$this->logger = $logger; |
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} |
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/** |
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* Checks if a worker is active and registered at the Gearman Job Server. |
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* returns false if not. |
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* @return boolean|null |
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*/ |
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public function workerExists() { |
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try { |
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$checkCommand = 'gearadmin -h 127.0.0.1 -p 4730 --workers 2>&1'; |
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exec($checkCommand, $result, $success); |
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if ($success !== 0 && count($result) > 0) { |
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throw new NotFoundException('Gearman worker detection failed.'); |
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} |
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// look into the resulting array. 3 because first row is the ps checking command, second row is the grep command separated from the ps and 3rd or more has to be the GearmanOCRWorker.php. |
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foreach ($result as $res) { |
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if (strpos($res, 'ocr') !== false) { |
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$this->logger->debug('Worker found.', ['app' => 'ocr']); |
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return true; |
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} |
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} |
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$this->logger->debug('No worker found.', ['app' => 'ocr']); |
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return false; |
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} catch (Exception $e) { |
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$this->handleException($e); |
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} |
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} |
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/** |
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* Handle the possible thrown Exceptions from all methods of this class. |
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* |
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* @param Exception $e |
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* @throws Exception |
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* @throws NotFoundException |
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*/ |
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View Code Duplication |
private function handleException($e) { |
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$this->logger->logException($e, ['app' => 'ocr', 'message' => 'Exception during gearman worker service function processing']); |
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if ($e instanceof NotFoundException) { |
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throw new NotFoundException($e->getMessage()); |
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} else { |
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throw $e; |
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} |
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} |
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} |
janis91 /
ocr
