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CodeCamp Iasi 10 march 2012 - websockets-with-atmosphere

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Codecamp Romania
Codecamp Romania

Atmosphere is a Java framework that provides a unified Comet API and supports WebSockets and fallback to blocking IO. It uses broadcasters to publish messages from the server to subscribed clients over a single TCP connection, providing full-duplex communication. The document demonstrates how Atmosphere works on the server and client sides and discusses Java support for WebSockets.

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Friday, March 9, 12
WebSockets with Atmosphere Dan Vulpe @dvulpe 10 mar 2012 Friday, March 9, 12
HTTP - Half Duplex Request Client Server Friday, March 9, 12
HTTP - Half Duplex Request 30-150ms Response Request Connection 2 Response Client Server Friday, March 9, 12
HTTP - Half Duplex Request 30-150ms Response HttpSession Request Connection 2 Response Client Server Friday, March 9, 12
WebSocket Full Duplex Single TCP connection Client Server Friday, March 9, 12
WebSocket Full Duplex Handshake Request WebSocket upgrade Single TCP connection Client Server Friday, March 9, 12
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 façade Friday, March 9, 12
Components MeteorServlet Http Request AtmosphereResource Broadcaster Friday, March 9, 12
Server: Incoming • Implement SubProtocol • handle onMessage events Friday, March 9, 12
Server: Outgoing • Request a Broadcaster from Factory • Subscribe resources to Broadcaster • Publish messages through Broadcaster Friday, March 9, 12
JS Client API Friday, March 9, 12
DEMO Friday, March 9, 12
Java Support • Server side • JSR356 - Java API for WebSocket - In Progress • Containers: Jetty(7, 8), Grizzly/Glassfish, Resin • Client • async-http-client Friday, March 9, 12
Resources • https://github.com/Atmosphere/atmosphere • http://www.websocket.org/ • http://www.w3.org/TR/websockets/ • http://wiki.eclipse.org/Jetty/Feature/WebSockets Friday, March 9, 12
Thank you! Please fill out the evaluation form! Friday, March 9, 12

More Related Content

CodeCamp Iasi 10 march 2012 - websockets-with-atmosphere

  • 2. WebSockets with Atmosphere Dan Vulpe @dvulpe 10 mar 2012 Friday, March 9, 12
  • 3. HTTP - Half Duplex Request Client Server Friday, March 9, 12
  • 4. HTTP - Half Duplex Request 30-150ms Response Request Connection 2 Response Client Server Friday, March 9, 12
  • 5. HTTP - Half Duplex Request 30-150ms Response HttpSession Request Connection 2 Response Client Server Friday, March 9, 12
  • 6. WebSocket Full Duplex Single TCP connection Client Server Friday, March 9, 12
  • 7. WebSocket Full Duplex Handshake Request WebSocket upgrade Single TCP connection Client Server Friday, March 9, 12
  • 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 façade Friday, March 9, 12
  • 9. Components MeteorServlet Http Request AtmosphereResource Broadcaster Friday, March 9, 12
  • 10. Server: Incoming • Implement SubProtocol • handle onMessage events Friday, March 9, 12
  • 11. Server: Outgoing • Request a Broadcaster from Factory • Subscribe resources to Broadcaster • Publish messages through Broadcaster Friday, March 9, 12
  • 12. JS Client API Friday, March 9, 12
  • 14. Java Support • Server side • JSR356 - Java API for WebSocket - In Progress • Containers: Jetty(7, 8), Grizzly/Glassfish, Resin • Client • async-http-client Friday, March 9, 12
  • 15. Resources • https://github.com/Atmosphere/atmosphere • http://www.websocket.org/ • http://www.w3.org/TR/websockets/ • http://wiki.eclipse.org/Jetty/Feature/WebSockets Friday, March 9, 12
  • 16. Thank you! Please fill out the evaluation form! Friday, March 9, 12