Let's do our own full blown HTTP server with Undertow

In Let's do our own full blown HTTP server with Netty 4 we've spent a lot of man-hours to build our light embeddable web server and later in the article Performance analysis of our own full blown HTTP server with Netty 4 it was compared to Glassfish (powered by Grizzly). Lets try out Undertow from JBoss that powers Wildfly.

Performance analysis of our own full blown HTTP server with Netty 4

In previous post Let's do our own full blown HTTP server with Netty 4 you and I were excited by creation of our own web server. So far so good. But how good?

Let's do our own full blown HTTP server with Netty 4

Sometimes servlets just doesn't fit you, sometimes you need to support some protocols except HTTP, sometimes you need something really fast. Allow me to show you the Netty that can suit for these needs.

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. (http://netty.io/)

Netty has everything one needs for HTTP, thus web server on Netty is like a low hanging fruit.
First of all you need to understand what pipeline is, see Interface ChannelPipeline. Pipeline is like processing line where various ChannelHandlers convert input bytes into output. Pipeline corresponds one to one to connection, thus ChannelHandlers in our case will convert HTTP Request into HTTP Response, handlers will be responsible for such auxiliary things like parsing incoming packets and assembling outcoming and also call business logic to handle requests and produce responses.
Full source is available.