HttpServerBuilder.java 文件源码

public HttpServer build()
{
    if (eventLoopGroup == null) {
        eventLoopGroup = useEpoll ? new EpollEventLoopGroup() : new NioEventLoopGroup();
    }
    if (swagger == null) {
        swagger = new Swagger();
    }
    if (websocketServices == null) {
        websocketServices = ImmutableSet.of();
    }
    if (customRequestParameters == null) {
        customRequestParameters = ImmutableMap.of();
    }
    return new HttpServer(
            httpServices,
            websocketServices,
            swagger,
            eventLoopGroup,
            jsonRequestPreprocessors.build(),
            postProcessorEntryBuilder.build(),
            mapper == null ? HttpServer.DEFAULT_MAPPER : mapper,
            overridenMappings,
            exceptionHandler,
            customRequestParameters,
            swaggerOperationConsumer,
            useEpoll && Epoll.isAvailable(),
            proxyProtocol, maximumBodySize);
}