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<?php |
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namespace Wikibase\EntityStore\Cache; |
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use Ask\Language\Description\Description; |
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use Ask\Language\Option\QueryOptions; |
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use Doctrine\Common\Cache\Cache; |
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use OutOfBoundsException; |
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use RuntimeException; |
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use Wikibase\DataModel\Entity\EntityId; |
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/** |
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* @licence GPLv2+ |
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* @author Thomas Pellissier Tanon |
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*/ |
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class EntityIdForQueryCache { |
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const CACHE_ID_PREFIX = 'wikibase-store-entityforquery-'; |
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const CACHE_LIFE_TIME = 86400; |
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/** |
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* @var Cache |
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*/ |
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private $cache; |
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/** |
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* @var int |
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*/ |
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private $lifeTime; |
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/** |
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* @param Cache $cache |
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* @param int $lifeTime |
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*/ |
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public function __construct( Cache $cache, $lifeTime = 0 ) { |
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$this->cache = $cache; |
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$this->lifeTime = $lifeTime; |
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} |
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/** |
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* @param Description $description |
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* @param QueryOptions $queryOptions |
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* @param string $entityType |
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* @return EntityId[] |
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*/ |
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public function fetch( Description $description, QueryOptions $queryOptions = null, $entityType ) { |
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$result = $this->cache->fetch( $this->getCacheId( $description, $queryOptions, $entityType ) ); |
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if( $result === false ) { |
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throw new OutOfBoundsException( 'The search is not in the cache.' ); |
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} |
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return $result; |
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} |
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/** |
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* @param Description $description |
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* @param QueryOptions $queryOptions |
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* @param string $entityType |
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* @return boolean |
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*/ |
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public function contains( Description $description, QueryOptions $queryOptions = null, $entityType ) { |
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return $this->cache->contains( $this->getCacheId( $description, $queryOptions, $entityType ) ); |
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} |
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/** |
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* @param Description $description |
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* @param QueryOptions $queryOptions |
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* @param string $entityType |
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* @param EntityId[] $entityIds |
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*/ |
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public function save( Description $description, QueryOptions $queryOptions = null, $entityType, array $entityIds ) { |
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if( !$this->cache->save( |
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$this->getCacheId( $description, $queryOptions, $entityType ), |
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$entityIds, |
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$this->lifeTime |
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) ) { |
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throw new RuntimeException( 'The cache failed to save.' ); |
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} |
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} |
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private function getCacheId( Description $description, QueryOptions $queryOptions = null, $entityType ) { |
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$key = self::CACHE_ID_PREFIX . WIKIBASE_DATAMODEL_VERSION . '-' . |
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$entityType . '-' . $description->getHash(); |
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if( $queryOptions !== null ) { |
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$key .= '-' . $queryOptions->getOffset() . '-' . $queryOptions->getLimit(); |
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} |
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return $key; |
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} |
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} |
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ProjetPP /
WikibaseEntityStore
