75 lines
2.3 KiB
PHP
75 lines
2.3 KiB
PHP
<?php
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namespace TYPO3\CMS\Scheduler\Task;
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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use Doctrine\DBAL\DBALException;
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use TYPO3\CMS\Core\Database\ConnectionPool;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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/**
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* Perform OPTIMIZE TABLE SQL statements
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*
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* This task reorganizes the physical storage of table data and associated index data,
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* to reduce storage space and improve I/O efficiency when accessing the table. The
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* exact changes made to each table depend on the storage engine used by that table.
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* @internal This class is a specific scheduler task implementation is not considered part of the Public TYPO3 API.
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*/
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class OptimizeDatabaseTableTask extends AbstractTask
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{
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/**
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* Database tables that should be cleaned up,
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* set by additional field provider.
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*
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* @var array Selected tables to optimize
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*/
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public $selectedTables = [];
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/**
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* Execute table optimization, called by scheduler.
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*
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* @return bool
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*/
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public function execute()
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{
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$connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
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foreach ($this->selectedTables as $tableName) {
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$connection = $connectionPool->getConnectionForTable($tableName);
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if (strpos($connection->getServerVersion(), 'MySQL') === 0) {
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try {
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$connection->query('OPTIMIZE TABLE ' . $connection->quoteIdentifier($tableName));
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} catch (DBALException $e) {
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throw new \RuntimeException(
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TableGarbageCollectionTask::class . ' failed for: ' . $tableName . ': ' .
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$e->getPrevious()->getMessage(),
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1441390263
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);
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}
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}
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}
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return true;
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}
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/**
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* Output the selected tables
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*
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* @return string
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*/
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public function getAdditionalInformation()
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{
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return implode(', ', $this->selectedTables);
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}
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}
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