private static void populateDefaultFiltersConfig(ServerConfig.Builder builder, JettyHttpServer httpServer) {
        if (httpServer != null) {
            for (ConnectorFactory connector : httpServer.getConnectorFactories()) {
                connector.getDefaultRequestFilterChain().ifPresent(
                        filterChain -> builder.defaultFilters(new ServerConfig.DefaultFilters.Builder()
                                .filterId(filterChain.stringValue())
                                .localPort(connector.getListenPort())));
                connector.getDefaultResponseFilterChain().ifPresent(
                        filterChain -> builder.defaultFilters(new ServerConfig.DefaultFilters.Builder()
                                .filterId(filterChain.stringValue())
                                .localPort(connector.getListenPort())));
            }
        }
    }
Represents the http servers and filters of a container cluster.

@author Tony Vaagenes
@author bjorncs
config-model/src/main/java/com/yahoo/vespa/model/container/http/Http.java