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<?php |
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namespace SUC; |
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use ObjectCache; |
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use Onoi\Cache\CacheFactory as OnoiCacheFactory; |
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use Onoi\BlobStore\BlobStore; |
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use ApiParse; |
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use ApiBase; |
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use Title; |
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use Revision; |
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/** |
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* @license GNU GPL v2+ |
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* @since 1.0 |
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* |
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* @author mwjames |
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*/ |
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class BackendCache { |
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const VERSION = '0.1'; |
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/** |
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* @var BackendCache |
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*/ |
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private static $instance = null; |
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/** |
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* @var BlobStore |
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*/ |
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private $blobStore; |
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/** |
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* @var Options |
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*/ |
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private $options; |
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/** |
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* @since 1.0 |
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* |
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* @param BlobStore $blobStore |
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* @param Options $options |
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*/ |
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public function __construct( BlobStore $blobStore, Options $options ) { |
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$this->blobStore = $blobStore; |
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$this->options = $options; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param BackendCache|null $instance |
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* |
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* @return BackendCache |
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*/ |
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public static function getInstance( BackendCache $instance = null ) { |
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if ( $instance !== null ) { |
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return $instance; |
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} |
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if ( self::$instance !== null ) { |
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return self::$instance; |
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} |
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$options = Options::newFromGlobals(); |
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$cache = OnoiCacheFactory::getInstance()->newMediaWikiCache( |
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ObjectCache::getInstance( $options->get( 'backendParserCacheType' ) ) |
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); |
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$blobStore = new BlobStore( |
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'suc:store', |
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$cache |
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); |
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$blobStore->setNamespacePrefix( |
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$options->get( 'cachePrefix' ) |
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); |
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$blobStore->setExpiryInSeconds( |
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$options->get( 'backendParserCacheLifetime' ) |
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); |
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return self::$instance = new self( $blobStore, $options ); |
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} |
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/** |
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* @since 1.0 |
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*/ |
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public static function clear() { |
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self::$instance = null; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param Title $title |
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* |
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* @return string |
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*/ |
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public function getHashFrom( Title $title = null ) { |
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$enabledNamespaceWithTemplate = $this->options->get( 'enabledNamespaceWithTemplate' ); |
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if ( $title === null || !isset( $enabledNamespaceWithTemplate[$title->getNamespace()] ) ) { |
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return ''; |
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} |
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return md5( |
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self::VERSION . |
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$title->getPrefixedDBKey() . |
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$enabledNamespaceWithTemplate[$title->getNamespace()] . |
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$this->options->get( 'backendParserCacheLifetime' ) |
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); |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param string $title |
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* |
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* @return Title|null |
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*/ |
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public function getTargetFrom( $title ) { |
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$title = Title::newFromText( $title ); |
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if ( $title === null || $title->hasFragment() ) { |
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return $title; |
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} |
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# Get the article text |
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$rev = Revision::newFromTitle( $title, false, Revision::READ_LATEST ); |
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if ( !is_object( $rev ) ) { |
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return $title; |
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} |
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$content = $rev->getContent(); |
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# Does the redirect point to the source? |
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# Or is it a broken self-redirect, usually caused by namespace collisions? |
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return $content && $content->getRedirectTarget() !== null ? $content->getRedirectTarget() : $title; |
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} |
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/** |
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* @since 1.0 |
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* |
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149
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* @return BlobStore |
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*/ |
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151
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1 |
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public function getBlobStore() { |
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1 |
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return $this->blobStore; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param Title $title |
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*/ |
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1 |
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public function invalidateCache( Title $title ) { |
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$this->blobStore->delete( $this->getHashFrom( $title ) ); |
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return true; |
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} |
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165
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} |
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SemanticMediaWiki /
SummaryCards
