public static Integer imports ( Configurer configurer ) { Check . notNull ( configurer ) ; if ( configurer . hasNode ( NODE_GROUP ) ) { final String group = configurer . getText ( NODE_GROUP ) ; try { return Integer . valueOf ( group ) ; } catch ( final NumberFormatException exception ) { throw new LionEngineException ( exception , ERROR_INVALID_GROUP + group ) ; } } return DEFAULT_GROUP ; }
Create the collidable data from node .