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<?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 );
}
}
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