This document provides an overview of Undertow, an embeddable web server for Java applications. It discusses Undertow's lightweight and high performance architecture based on small reusable handlers. Key features mentioned include support for Servlet 3.1, web sockets, and acting as a reverse proxy. The document also briefly outlines Undertow's handler-based approach and some built-in handlers like path matching, virtual hosts, and error handling.

1. Undertow 맛보기
Jeff Lee

2. Undertow?
http://undertow.io
https://github.com/undertow-io
Undertow has a composition based architecture
that allows you to build a web server by
combining small single purpose handlers.
- Full Java EE servlet 3.1 container
- Low level non-blocking handler

3. Why Undertow
Lightweight
HTTP Upgrade Support (101-Switching Protocols)
Web Socket Support
Servlet 3.1
Embeddable
Flexible

4. Undertow Features
High Performance
Embeddable
Servlet 3.1
Web Sockets
Reverse Proxy

5. Show me the code

6. Undertow Architecture
XNIO
비동기 통신 라이브러리 (ex:Netty)
SSL 지원
http://xnio.jboss.org/

7. Undertow Architecture
Listeners
HTTP
HTTPS
AJP
SPDY(지원 예정)

8. Undertow Architecture
Handlers - Handler Chaining

9. Built in Handlers
Path
Virtual Host
Path Template
Date
Resource
Predicate
HTTP Continue
Websocket
Redirect
Trace
Header
IP Access Control
ACL
URL Decoding
Set Attribute
Rewrite
Graceful Shutdown
Proxy Peer Address

10. Error Handling

11. Reverse Proxy
SimpleProxyClientProvider
서버 하나의 요청을 처리
실제 서버를 외부에 숨길 때 사용
LoadBalancingProxyClient
여러 서버의 요청을 처리
부하 분산할 때 사용

12. Servlet Deployment