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<?php /** * Lock manager registration handling. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file * @ingroup LockManager */ use MediaWiki\Logger\LoggerFactory; /** * Class to handle file lock manager registration * * @ingroup LockManager * @since 1.19 */ class LockManagerGroup { /** @var string domain (usually wiki ID) */ protected $domain; /** @var array Array of (name => ('class' => ..., 'config' => ..., 'instance' => ...)) */ protected $managers = []; /** * Do not call this directly. Use LockManagerGroupFactory. * * @param string $domain Domain (usually wiki ID) * @param array[] $lockManagerConfigs In format of $wgLockManagers */ public function __construct( $domain, array $lockManagerConfigs ) { $this->domain = $domain; foreach ( $lockManagerConfigs as $config ) { $config['domain'] = $this->domain; if ( !isset( $config['name'] ) ) { throw new InvalidArgumentException( "Cannot register a lock manager with no name." ); } $name = $config['name']; if ( !isset( $config['class'] ) ) { throw new InvalidArgumentException( "Cannot register lock manager `{$name}` with no class." ); } $class = $config['class']; unset( $config['class'] ); // lock manager won't need this $this->managers[$name] = [ 'class' => $class, 'config' => $config, 'instance' => null ]; } } /** * Get the lock manager object with a given name * * @param string $name * @return LockManager * @throws Exception */ public function get( $name ) { if ( !isset( $this->managers[$name] ) ) { throw new InvalidArgumentException( "No lock manager defined with the name `$name`." ); } // Lazy-load the actual lock manager instance if ( !isset( $this->managers[$name]['instance'] ) ) { $class = $this->managers[$name]['class']; '@phan-var string $class'; $config = $this->managers[$name]['config']; $config['logger'] = LoggerFactory::getInstance( 'LockManager' ); $this->managers[$name]['instance'] = new $class( $config ); } return $this->managers[$name]['instance']; } /** * Get the config array for a lock manager object with a given name * * @param string $name * @return array * @throws Exception */ public function config( $name ) { if ( !isset( $this->managers[$name] ) ) { throw new InvalidArgumentException( "No lock manager defined with the name `$name`." ); } $class = $this->managers[$name]['class']; return [ 'class' => $class ] + $this->managers[$name]['config']; } }
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