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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | namespace MediaWiki\PoolCounter; |
| 22 | |
| 23 | use MediaWiki\Logger\Spi as LoggerSpi; |
| 24 | use MediaWiki\MainConfigNames; |
| 25 | use MediaWiki\MediaWikiServices; |
| 26 | use MediaWiki\Parser\ParserOptions; |
| 27 | use MediaWiki\Parser\ParserOutput; |
| 28 | use MediaWiki\Parser\RevisionOutputCache; |
| 29 | use MediaWiki\Revision\RevisionRecord; |
| 30 | use MediaWiki\Revision\RevisionRenderer; |
| 31 | use MediaWiki\Status\Status; |
| 32 | |
| 33 | /** |
| 34 | * PoolWorkArticleView for an old revision of a page, using a simple cache. |
| 35 | * |
| 36 | * @internal |
| 37 | */ |
| 38 | class PoolWorkArticleViewOld extends PoolWorkArticleView { |
| 39 | /** @var RevisionOutputCache */ |
| 40 | private $cache; |
| 41 | |
| 42 | /** |
| 43 | * @param string $workKey PoolCounter key. |
| 44 | * @param RevisionOutputCache $cache The cache to store ParserOutput in. |
| 45 | * @param RevisionRecord $revision Revision to render |
| 46 | * @param ParserOptions $parserOptions ParserOptions to use for the parse |
| 47 | * @param RevisionRenderer $revisionRenderer |
| 48 | * @param LoggerSpi $loggerSpi |
| 49 | */ |
| 50 | public function __construct( |
| 51 | string $workKey, |
| 52 | RevisionOutputCache $cache, |
| 53 | RevisionRecord $revision, |
| 54 | ParserOptions $parserOptions, |
| 55 | RevisionRenderer $revisionRenderer, |
| 56 | LoggerSpi $loggerSpi |
| 57 | ) { |
| 58 | parent::__construct( $workKey, $revision, $parserOptions, $revisionRenderer, $loggerSpi ); |
| 59 | |
| 60 | $this->cache = $cache; |
| 61 | |
| 62 | $this->cacheable = true; |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * @return Status |
| 67 | */ |
| 68 | public function doWork() { |
| 69 | // T371713: Temporary statistics collection code to determine |
| 70 | // feasibility of Parsoid selective update |
| 71 | $sampleRate = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 72 | MainConfigNames::ParsoidSelectiveUpdateSampleRate |
| 73 | ); |
| 74 | $doSample = ( $sampleRate && mt_rand( 1, $sampleRate ) === 1 ); |
| 75 | |
| 76 | // Reduce effects of race conditions for slow parses (T48014) |
| 77 | $cacheTime = wfTimestampNow(); |
| 78 | |
| 79 | $status = $this->renderRevision( |
| 80 | null, /* don't attempt Parsoid selective updates on this path */ |
| 81 | $doSample, 'PoolWorkArticleViewOld' |
| 82 | ); |
| 83 | /** @var ParserOutput|null $output */ |
| 84 | $output = $status->getValue(); |
| 85 | |
| 86 | if ( $output && $output->isCacheable() ) { |
| 87 | $this->cache->save( $output, $this->revision, $this->parserOptions, $cacheTime ); |
| 88 | } |
| 89 | |
| 90 | return $status; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * @return Status|false |
| 95 | */ |
| 96 | public function getCachedWork() { |
| 97 | $parserOutput = $this->cache->get( $this->revision, $this->parserOptions ); |
| 98 | |
| 99 | return $parserOutput ? Status::newGood( $parserOutput ) : false; |
| 100 | } |
| 101 | |
| 102 | } |
| 103 | |
| 104 | /** @deprecated class alias since 1.42 */ |
| 105 | class_alias( PoolWorkArticleViewOld::class, 'PoolWorkArticleViewOld' ); |