[ 'localhost' => [ 'host' => env('SOLR_HOST', 'zontik.gba.geolba.ac.at'), 'port' => env('SOLR_PORT', '8983'), 'path' => env('SOLR_PATH', '/solr/'), 'core' => env('SOLR_CORE', 'opus4') ] ], 'xsltfile' => "solr.xslt" ];