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<?php |
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namespace Wikibase\EntityStore\Config; |
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use Doctrine\Common\Cache\ArrayCache; |
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use Doctrine\Common\Cache\Cache; |
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use Doctrine\Common\Cache\ChainCache; |
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use InvalidArgumentException; |
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use Mediawiki\Api\MediawikiApi; |
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use RuntimeException; |
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use Symfony\Component\Config\Definition\Processor; |
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use Wikibase\EntityStore\Api\ApiEntityStore; |
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use Wikibase\EntityStore\Cache\CachedEntityStore; |
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use Wikibase\EntityStore\EntityStore; |
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use Wikibase\EntityStore\EntityStoreOptions; |
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use Wikibase\EntityStore\MongoDB\MongoDBEntityStore; |
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use WikidataQueryApi\WikidataQueryApi; |
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class EntityStoreFromConfigurationBuilder { |
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/** |
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* @param string $configurationFileName |
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* @return EntityStore |
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*/ |
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public function buildEntityStore( $configurationFileName ) { |
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$config = $this->parseConfiguration( $configurationFileName ); |
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$store = $this->buildEntityStoreFromConfig( $config ); |
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if( array_key_exists( 'cache', $config ) ) { |
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$cache = $this->buildCacheFromConfig( $config['cache'] ); |
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if( $cache !== null ) { |
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return new CachedEntityStore( $store, $cache, $config['cache']['lifetime'] ); |
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} |
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} |
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return $store; |
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} |
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/** |
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* @param string $configurationFileName |
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* @return Cache |
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*/ |
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public function buildCache( $configurationFileName ) { |
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$config = $this->parseConfiguration( $configurationFileName ); |
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if( !array_key_exists( 'cache', $config ) ) { |
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throw new InvalidArgumentException( 'No cache key in configuration' ); |
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} |
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return $this->buildCacheFromConfig( $config['cache'] ); |
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} |
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private function buildEntityStoreFromConfig( $config ) { |
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$options = new EntityStoreOptions( $config['options'] ); |
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switch( $config['backend'] ) { |
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case 'api': |
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return new ApiEntityStore( |
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$this->getWikibaseApi( $config['api'] ), |
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$this->getWikidataQueryApi( $config['api'] ), |
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$options |
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); |
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case 'mongodb': |
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return new MongoDBEntityStore( $this->getMongoDbDatabase( $config['mongodb'] ), $options ); |
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default: |
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throw new InvalidArgumentException( 'Unknown backend: ' . $config['backend'] ); |
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} |
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} |
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private function getWikibaseApi( $config ) { |
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return MediawikiApi::newFromApiEndpoint( $config['url'] ); |
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} |
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private function getWikidataQueryApi( $config ) { |
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if( !array_key_exists( 'wikidataquery_url', $config ) ) { |
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return null; |
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} |
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return new WikidataQueryApi( $config['wikidataquery_url'] ); |
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} |
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private function getMongoDbDatabase( $config ) { |
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$connection = new \Doctrine\MongoDB\Connection( $config['server'] ); |
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if( !$connection->connect() ) { |
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throw new RuntimeException( 'Fail to connect to MongoDb' ); |
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} |
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return $connection |
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->selectDatabase( $config['database'] ); |
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} |
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private function buildCacheFromConfig( $config ) { |
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$caches = []; |
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if( $config['array']['enabled'] ) { |
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$caches[] = new ArrayCache(); |
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} |
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if( $config['memcached']['enabled'] ) { |
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$memcached = new \Memcached(); |
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if( !$memcached->addServer( $config['memcached']['host'], $config['memcached']['port'] ) ) { |
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throw new RuntimeException( 'Fail to connect to Memcached' ); |
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} |
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$memcachedCache = new \Doctrine\Common\Cache\MemcachedCache(); |
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$memcachedCache->setMemcached($memcached); |
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$caches[] = $memcachedCache; |
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} |
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switch( count( $caches ) ) { |
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case 0: |
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return null; |
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case 1: |
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return reset( $caches ); |
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default: |
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return new ChainCache( $caches ); |
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} |
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} |
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private function parseConfiguration( $configurationFileName ) { |
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$configValues = json_decode( file_get_contents( $configurationFileName ), true ); |
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$processor = new Processor(); |
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$configuration = new EntityStoreConfiguration(); |
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return $processor->processConfiguration( |
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$configuration, |
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[ $configValues ] |
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); |
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} |
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} |
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ProjetPP /
WikibaseEntityStore
