1 files changed, 169 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/CacheFactory.php b/www/wiki/extensions/SemanticMediaWiki/src/CacheFactory.php
new file mode 100644
index 00000000..4725bef7
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/CacheFactory.php
@@ -0,0 +1,169 @@
+<?php
+
+namespace SMW;
+
+use ObjectCache;
+use Onoi\Cache\CacheFactory as OnoiCacheFactory;
+use RuntimeException;
+use Title;
+
+/**
+ * @license GNU GPL v2+
+ * @since 2.2
+ *
+ * @author mwjames
+ */
+class CacheFactory {
+
+	/**
+	 * @var string|integer
+	 */
+	private $mainCacheType;
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param string|integer|null $mainCacheType
+	 */
+	public function __construct( $mainCacheType = null ) {
+		$this->mainCacheType = $mainCacheType;
+
+		if ( $this->mainCacheType === null ) {
+			$this->mainCacheType = $GLOBALS['smwgMainCacheType'];
+		}
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @return string|integer
+	 */
+	public function getMainCacheType() {
+		return $this->mainCacheType;
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @return string
+	 */
+	public static function getCachePrefix() {
+		return $GLOBALS['wgCachePrefix'] === false ? wfWikiID() : $GLOBALS['wgCachePrefix'];
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param Title|integer|string $key
+	 *
+	 * @return string
+	 */
+	public static function getPurgeCacheKey( $key ) {
+
+		if ( $key instanceof Title ) {
+			$key = $key->getArticleID();
+		}
+
+		return self::getCachePrefix() . ':smw:arc:' . md5( $key );
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param array $cacheOptions
+	 *
+	 * @return stdClass
+	 * @throws RuntimeException
+	 */
+	public function newCacheOptions( array $cacheOptions ) {
+
+		if ( !isset( $cacheOptions['useCache'] ) || !isset( $cacheOptions['ttl'] ) ) {
+			throw new RuntimeException( "Cache options is missing a useCache/ttl parameter" );
+		}
+
+		return (object)$cacheOptions;
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param integer $cacheSize
+	 *
+	 * @return Cache
+	 */
+	public function newFixedInMemoryCache( $cacheSize = 500 ) {
+		return OnoiCacheFactory::getInstance()->newFixedInMemoryLruCache( $cacheSize );
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @return Cache
+	 */
+	public function newNullCache() {
+		return OnoiCacheFactory::getInstance()->newNullCache();
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param integer|string $mediaWikiCacheType
+	 *
+	 * @return Cache
+	 */
+	public function newMediaWikiCompositeCache( $mediaWikiCacheType = null ) {
+
+		$compositeCache = OnoiCacheFactory::getInstance()->newCompositeCache( [
+			$this->newFixedInMemoryCache( 500 ),
+			$this->newMediaWikiCache( $mediaWikiCacheType )
+		] );
+
+		return $compositeCache;
+	}
+
+	/**
+	 * @since 2.5
+	 *
+	 * @param integer|string $mediaWikiCacheType
+	 *
+	 * @return Cache
+	 */
+	public function newMediaWikiCache( $mediaWikiCacheType = null ) {
+
+		$mediaWikiCache = ObjectCache::getInstance(
+			( $mediaWikiCacheType === null ? $this->getMainCacheType() : $mediaWikiCacheType )
+		);
+
+		return OnoiCacheFactory::getInstance()->newMediaWikiCache( $mediaWikiCache );
+	}
+
+	/**
+	 * @since 2.5
+	 *
+	 * @param integer|null $cacheType
+	 *
+	 * @return Cache
+	 */
+	public function newCacheByType( $cacheType = null ) {
+
+		if ( $cacheType === CACHE_NONE || $cacheType === null ) {
+			return $this->newNullCache();
+		}
+
+		return $this->newMediaWikiCache( $cacheType );
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param string $namespace
+	 * @param string|integer|null $cacheType
+	 * @param integer $cacheLifetime
+	 *
+	 * @return BlobStore
+	 */
+	public function newBlobStore( $namespace, $cacheType = null, $cacheLifetime = 0 ) {
+		return ApplicationFactory::getInstance()->create( 'BlobStore', $namespace, $cacheType, $cacheLifetime );
+	}
+
+}