question: private void initQParsers ( ) { initPlugins ( qParserPlugins , QParserPlugin . class ) ; for ( int i = 0 ; i < QParserPlugin . standardPlugins . length ; i += 2 ) { try { String name = ( String ) QParserPlugin . standardPlugins [ i ] ; if ( null == qParserPlugins . get ( name ) ) { Class < QParserPlugin > clazz = ( Class < QParserPlugin > ) QParserPlugin . standardPlugins [ i + 1 ] ; QParserPlugin plugin = clazz . newInstance ( ) ; qParserPlugins . put ( name , plugin ) ; plugin . init ( null ) ; infoRegistry . put ( name , plugin ) ; } } catch ( Exception e ) { throw new SolrException ( SolrException . ErrorCode . SERVER_ERROR , e ) ; } } }
target:  Configure the query parsers. 