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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Installer; |
| 4 | |
| 5 | use MediaWiki\Installer\Task\ITaskContext; |
| 6 | use MediaWiki\MainConfigNames; |
| 7 | use MediaWiki\Status\Status; |
| 8 | use Wikimedia\Rdbms\ILoadBalancer; |
| 9 | |
| 10 | /** |
| 11 | * Helper for creating databases |
| 12 | * |
| 13 | * @since 1.44 |
| 14 | */ |
| 15 | abstract class DatabaseCreator { |
| 16 | /** @var ITaskContext */ |
| 17 | protected $context; |
| 18 | |
| 19 | /** |
| 20 | * @internal use Task::getDatabaseCreator() |
| 21 | * |
| 22 | * @param ITaskContext $context |
| 23 | * @return DatabaseCreator |
| 24 | */ |
| 25 | public static function createInstance( ITaskContext $context ): DatabaseCreator { |
| 26 | $type = $context->getConfigVar( MainConfigNames::DBtype ); |
| 27 | |
| 28 | switch ( $type ) { |
| 29 | case 'mysql': |
| 30 | return new MysqlDatabaseCreator( $context ); |
| 31 | case 'postgres': |
| 32 | return new PostgresDatabaseCreator( $context ); |
| 33 | case 'sqlite': |
| 34 | return new SqliteDatabaseCreator( $context ); |
| 35 | default: |
| 36 | throw new \InvalidArgumentException( "Unknown DBMS type \"$type\"" ); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | protected function __construct( ITaskContext $context ) { |
| 41 | $this->context = $context; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * Check if a database exists on the local cluster or context |
| 46 | * |
| 47 | * @param string $database |
| 48 | * @return bool |
| 49 | */ |
| 50 | abstract public function existsLocally( $database ); |
| 51 | |
| 52 | /** |
| 53 | * Check if a database exists in the specified LoadBalancer which may be |
| 54 | * for an external cluster. |
| 55 | * |
| 56 | * @param ILoadBalancer $loadBalancer |
| 57 | * @param string $database |
| 58 | * @return bool |
| 59 | */ |
| 60 | abstract public function existsInLoadBalancer( ILoadBalancer $loadBalancer, $database ); |
| 61 | |
| 62 | /** |
| 63 | * Create a database in the local cluster or install context |
| 64 | * |
| 65 | * @param string $database |
| 66 | * @return Status |
| 67 | */ |
| 68 | abstract public function createLocally( $database ): Status; |
| 69 | |
| 70 | /** |
| 71 | * Create a database in the specified LoadBalancer which may be for an |
| 72 | * external cluster. |
| 73 | * |
| 74 | * @param ILoadBalancer $loadBalancer |
| 75 | * @param string $database |
| 76 | * @return Status |
| 77 | */ |
| 78 | abstract public function createInLoadBalancer( ILoadBalancer $loadBalancer, $database ): Status; |
| 79 | } |