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<?php |
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namespace AOE\Crawler\Service; |
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/*************************************************************** |
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* Copyright notice |
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* |
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* (c) 2017 AOE GmbH <[email protected]> |
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* |
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* All rights reserved |
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* |
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* This script is part of the TYPO3 project. The TYPO3 project is |
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* free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* The GNU General Public License can be found at |
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* http://www.gnu.org/copyleft/gpl.html. |
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* |
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* This script is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* This copyright notice MUST APPEAR in all copies of the script! |
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***************************************************************/ |
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use AOE\Crawler\Controller\CrawlerController; |
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use AOE\Crawler\Domain\Repository\ProcessRepository; |
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use AOE\Crawler\Domain\Repository\QueueRepository; |
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use TYPO3\CMS\Core\Utility\CommandUtility; |
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use TYPO3\CMS\Core\Utility\ExtensionManagementUtility; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use TYPO3\CMS\Extbase\Object\ObjectManager; |
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/** |
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* Class ProcessService |
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* |
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* @package AOE\Crawler\Service |
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*/ |
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class ProcessService |
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{ |
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/** |
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* @var $timeToLive integer |
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*/ |
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private $timeToLive; |
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/** |
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* @var integer |
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*/ |
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private $countInARun; |
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/** |
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* @var integer |
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*/ |
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private $processLimit; |
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/** |
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* @var CrawlerController |
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*/ |
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private $crawlerController; |
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/** |
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* @var \AOE\Crawler\Domain\Repository\QueueRepository |
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*/ |
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private $queueRepository; |
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/** |
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* @var \AOE\Crawler\Domain\Repository\ProcessRepository |
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*/ |
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private $processRepository; |
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/** |
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* @var $verbose boolean |
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*/ |
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private $verbose; |
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/** |
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* the constructor |
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*/ |
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public function __construct() |
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{ |
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$objectManager = GeneralUtility::makeInstance(ObjectManager::class); |
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$this->processRepository = $objectManager->get(ProcessRepository::class); |
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$this->queueRepository = $objectManager->get(QueueRepository::class); |
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$this->crawlerController = $objectManager->get(CrawlerController::class); |
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$this->timeToLive = intval($this->crawlerController->extensionSettings['processMaxRunTime']); |
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$this->countInARun = intval($this->crawlerController->extensionSettings['countInARun']); |
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$this->processLimit = intval($this->crawlerController->extensionSettings['processLimit']); |
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$this->verbose = intval($this->crawlerController->extensionSettings['processVerbose']); |
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} |
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/** |
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* starts multiple processes |
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* |
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* @param integer $timeout |
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* |
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* @throws \RuntimeException |
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*/ |
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public function multiProcess($timeout) |
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{ |
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if ($this->processLimit <= 1) { |
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throw new \RuntimeException('To run crawler in multi process mode you have to configure the processLimit > 1.' . PHP_EOL); |
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} |
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$pendingItemsStart = $this->queueRepository->countAllPendingItems(); |
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$itemReportLimit = 20; |
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$reportItemCount = $pendingItemsStart - $itemReportLimit; |
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if ($this->verbose) { |
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$this->reportItemStatus(); |
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} |
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$this->startRequiredProcesses(); |
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$nextTimeOut = time() + $this->timeToLive; |
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$currentPendingItems = ''; |
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for ($i = 0; $i < $timeout; $i++) { |
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$currentPendingItems = $this->queueRepository->countAllPendingItems(); |
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if ($this->startRequiredProcesses()) { |
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$nextTimeOut = time() + $this->timeToLive; |
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} |
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if ($currentPendingItems == 0) { |
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if ($this->verbose) { |
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echo 'Finished...' . chr(10); |
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} |
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break; |
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} |
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if ($currentPendingItems < $reportItemCount) { |
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if ($this->verbose) { |
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$this->reportItemStatus(); |
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} |
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$reportItemCount = $currentPendingItems - $itemReportLimit; |
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} |
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sleep(1); |
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if ($nextTimeOut < time()) { |
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$timedOutProcesses = $this->processRepository->findAll('', 'DESC', null, 0, 'ttl >' . $nextTimeOut); |
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$nextTimeOut = time() + $this->timeToLive; |
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if ($this->verbose) { |
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echo 'Cleanup' . implode(',', $timedOutProcesses->getProcessIds()) . chr(10); |
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} |
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$this->crawlerController->CLI_releaseProcesses($timedOutProcesses->getProcessIds(), true); |
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} |
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} |
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if ($currentPendingItems > 0 && $this->verbose) { |
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echo 'Stop with timeout' . chr(10); |
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} |
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} |
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/** |
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* Reports curent Status of queue |
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*/ |
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protected function reportItemStatus() |
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{ |
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echo 'Pending:' . $this->queueRepository->countAllPendingItems() . ' / Assigned:' . $this->queueRepository->countAllAssignedPendingItems() . chr(10); |
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} |
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/** |
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* according to the given count of pending items and the countInARun Setting this method |
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* starts more crawling processes |
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* |
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* @return boolean if processes are started |
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* @throws \Exception |
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* |
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*/ |
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private function startRequiredProcesses() |
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{ |
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$ret = false; |
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$currentProcesses = $this->processRepository->countActive(); |
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$availableProcessesCount = $this->processLimit - $currentProcesses; |
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$requiredProcessesCount = ceil($this->queueRepository->countAllUnassignedPendingItems() / $this->countInARun); |
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$startProcessCount = min([$availableProcessesCount, $requiredProcessesCount]); |
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if ($startProcessCount <= 0) { |
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return $ret; |
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} |
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if ($startProcessCount && $this->verbose) { |
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echo 'Start ' . $startProcessCount . ' new processes (Running:' . $currentProcesses . ')'; |
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} |
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for ($i = 0; $i < $startProcessCount; $i++) { |
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usleep(100); |
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if ($this->startProcess()) { |
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if ($this->verbose) { |
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echo '.'; |
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$ret = true; |
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} |
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} |
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} |
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if ($this->verbose) { |
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echo chr(10); |
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} |
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return $ret; |
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} |
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/** |
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* starts new process |
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* @throws \Exception if no crawler process was started |
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*/ |
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public function startProcess() |
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{ |
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$ttl = (time() + $this->timeToLive - 1); |
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$current = $this->processRepository->countNotTimeouted($ttl); |
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// Check whether OS is Windows |
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if (TYPO3_OS === 'WIN') { |
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$completePath = escapeshellcmd('start ' . $this->getCrawlerCliPath()); |
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} else { |
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$completePath = '(' . escapeshellcmd($this->getCrawlerCliPath()) . ' &) > /dev/null'; |
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} |
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$fileHandler = CommandUtility::exec($completePath); |
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if ($fileHandler === false) { |
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throw new \Exception('could not start process!'); |
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} else { |
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for ($i = 0; $i < 10; $i++) { |
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if ($this->processRepository->countNotTimeouted($ttl) > $current) { |
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return true; |
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} |
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sleep(1); |
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} |
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throw new \Exception('Something went wrong: process did not appear within 10 seconds.'); |
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} |
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} |
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/** |
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* Returns the path to start the crawler from the command line |
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* |
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* @return string |
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*/ |
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public function getCrawlerCliPath(): string |
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{ |
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$phpPath = $this->crawlerController->extensionSettings['phpPath'] . ' '; |
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$cliPart = 'typo3 crawler:processQueue'; |
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$typo3BinaryPath = ExtensionManagementUtility::extPath('core') . 'bin/'; |
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$scriptPath = $phpPath . $typo3BinaryPath . $cliPart; |
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if (TYPO3_OS === 'WIN') { |
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$scriptPath = str_replace('/', '\\', $scriptPath); |
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} |
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return ltrim($scriptPath); |
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} |
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} |
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AOEpeople /
crawler
