CodeCamp Iasi 10 march 2012 - websockets-with-atmosphere

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CodeCamp Iasi 10 march 2012 - websockets-with-atmosphere

  1. 1. Friday, March 9, 12
  2. 2. WebSockets with Atmosphere Dan Vulpe @dvulpe 10 mar 2012Friday, March 9, 12
  3. 3. HTTP - Half Duplex Request Client ServerFriday, March 9, 12
  4. 4. HTTP - Half Duplex Request 30-150ms Response Request Connection 2 Response Client ServerFriday, March 9, 12
  5. 5. HTTP - Half Duplex Request 30-150ms Response HttpSession Request Connection 2 Response Client ServerFriday, March 9, 12
  6. 6. WebSocket Full Duplex Single TCP connection Client ServerFriday, March 9, 12
  7. 7. WebSocket Full Duplex Handshake Request WebSocket upgrade Single TCP connection Client ServerFriday, March 9, 12
  8. 8. Atmosphere • Java Framework provides uniform Comet API • Supports: WebLogic, Tomcat, Jetty, Glassfish, JBoss, Grizzly, Servlet 3.0 Async • Fallback to blocking-IO (one thread per channel) • jQuery plugin • WebSocket façadeFriday, March 9, 12
  9. 9. Components MeteorServlet Http Request AtmosphereResource BroadcasterFriday, March 9, 12
  10. 10. Server: Incoming • Implement SubProtocol • handle onMessage eventsFriday, March 9, 12
  11. 11. Server: Outgoing • Request a Broadcaster from Factory • Subscribe resources to Broadcaster • Publish messages through BroadcasterFriday, March 9, 12
  12. 12. JS Client APIFriday, March 9, 12
  13. 13. DEMOFriday, March 9, 12
  14. 14. Java Support • Server side • JSR356 - Java API for WebSocket - In Progress • Containers: Jetty(7, 8), Grizzly/Glassfish, Resin • Client • async-http-clientFriday, March 9, 12
  15. 15. Resources • https://github.com/Atmosphere/atmosphere • http://www.websocket.org/ • http://www.w3.org/TR/websockets/ • http://wiki.eclipse.org/Jetty/Feature/WebSocketsFriday, March 9, 12
  16. 16. Thank you! Please fill out the evaluation form!Friday, March 9, 12

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