ServiceWiring.php

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<?php
use MediaWiki\MediaWikiServices;

return [
    'SiteStore' => function( MediaWikiServices $services ) {
        $loadBalancer = wfGetLB(); // TODO: use LB from MediaWikiServices
        $rawSiteStore = new DBSiteStore( $loadBalancer );

        // TODO: replace wfGetCache with a CacheFactory service.
        // TODO: replace wfIsHHVM with a capabilities service.
        $cache = wfGetCache( wfIsHHVM() ? CACHE_ACCEL : CACHE_ANYTHING );

        return new CachingSiteStore( $rawSiteStore, $cache );
    },

    'SiteLookup' => function( MediaWikiServices $services ) {
        // Use the default SiteStore as the SiteLookup implementation for now
        return $services->getSiteStore();
    },

    'ConfigFactory' => function( MediaWikiServices $services ) {
        // Use the bootstrap config to initialize the ConfigFactory.
        $registry = $services->getBootstrapConfig()->get( 'ConfigRegistry' );
        $factory = new ConfigFactory();

        foreach ( $registry as $name => $callback ) {
            $factory->register( $name, $callback );
        }
        return $factory;
    },

    'MainConfig' => function( MediaWikiServices $services ) {
        // Use the 'main' config from the ConfigFactory service.
        return $services->getConfigFactory()->makeConfig( 'main' );
    },

    'StatsdDataFactory' => function( MediaWikiServices $services ) {
        return new BufferingStatsdDataFactory(
            rtrim( $services->getMainConfig()->get( 'StatsdMetricPrefix' ), '.' )
        );
    },

    'EventRelayerGroup' => function( MediaWikiServices $services ) {
        return new EventRelayerGroup( $services->getMainConfig()->get( 'EventRelayerConfig' ) );
    },

    'SearchEngineFactory' => function( MediaWikiServices $services ) {
        return new SearchEngineFactory( $services->getSearchEngineConfig() );
    },

    'SearchEngineConfig' => function( MediaWikiServices $services ) {
        global $wgContLang;
        return new SearchEngineConfig( $services->getMainConfig(), $wgContLang );
    },

    'SkinFactory' => function( MediaWikiServices $services ) {
        return new SkinFactory();
    },

    // NOTE: When adding a service here, don't forget to add a getter function
    // in the MediaWikiServices class. The convenience getter should just call
    // $this->getService( 'FooBarService' ).

];