Building Powerful WebSocket, Comet, and RESTful Applications Using Atmosphere This document discusses the Atmosphere framework for building asynchronous web applications. It introduces key concepts like suspending responses, broadcasting events, scheduling broadcasts, and clustering. It also provides an example of building a real-time Twitter search application with Atmosphere and discusses how Atmosphere allows writing applications once that can run anywhere across different transports without browser workarounds. The document encourages developers to use the simple Atmosphere APIs to build powerful asynchronous applications and to join the Atmosphere community.

1. Building Powerful WebSocket, Comet, and RESTful Applications Using Atmospherehttp://twitter.com/atmo_frameworkJeanfrancois Arcandhttp://twitter.com/jfarcandPaul Sandozhttp://twitter.com/PaulSandoz

2. Creator of the Grizzly Framework Creatpr of GlassFish v3 Grizzly Micro KernelCreator and Co-Leader of AtmosphereJeanfrancois9 years @ Sun MicrosystemCreator Async Http ClientCo-leader of AtmosphereCreator and Lead of JerseyPaul13 years @ Sun MicrosystemJava Champion

3. News and UpdateComet and WebSocket ProtocolThe Atmosphere FrameworkYa Ya Ya That’s ImpossibleHigh-level RESTful and asynchronous applicationsTwitter SearchConclusion Q & A

4. PrimeFaces (JSF) Spring IntegrationAkka (Scala/Actor) GWT-Comet Apache Tuscany Grails (Plug In)Atlassian (JIRA) Ning (Social Network)AutoDesk (AutoCad) Fabric3 (3D) Thinked (Journie), Sonatype (Secret)Wink Wicket Struts JQueryAtmosphere 0.6.2New! Atmosphere Gaming Framework

5. LongPollingWebSocketStreamingBrowserServerBrowserServerBrowserServerRequestRequestRequestRequestResponseResponseResponseResponseResponseUpgradeDataData

6. AtmosphereJava WebServer

7. WebSocketNothingCometJava WebServerAtmosphere

8. AtmosphereWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

9. AtmosphereAtmosphere ApplicationAtmosphere RuntimeWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

10. AtmosphereAtmosphere ApplicationAtmosphere RuntimeGuiceWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

11. AtmosphereServletAtmosphere ApplicationServlet runnerAtmosphere RuntimeGuiceWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

12. AtmosphereAtmosphere AnnotationsServletAtmosphere ApplicationServlet runnerAtmosphere RuntimeGuiceWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

13. AtmosphereClusterAtmosphere AnnotationsServletAtmosphere ApplicationServlet runnerAtmosphere RuntimeGuiceWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

14. AtmosphereAtmosphere ApplicationClusterAtmosphere AnnotationsJerseyServletAtmosphere ApplicationServlet runnerAtmosphere RuntimeGuiceWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

15. AtmosphereAtmosphere JQueryAtmosphere ApplicationClusterAtmosphere AnnotationsJerseyServletAtmosphere ApplicationServlet runnerAtmosphere RuntimeGuiceWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

16. AtmosphereAtmosphere JQueryAtmosphere ApplicationClusterAtmosphere AnnotationsJerseyServletAtmosphere ApplicationServlet runnerAtmosphere RuntimeGuiceWebSocketComet APIServlet 3.0 APINothingCometJava WebServer

17. AtmosphereAtmosphere JQueryAtmosphere ApplicationAtmosphere ApplicationAtmosphere Spade ServerPowered by GrizzlyEmbedGuiceWebSocketComet APIServlet 3.0 APINothingComet

18. Why

19. ClusteringWhy

20. JMSJGroupsClusteringWhy

21. JMSJGroupsClusteringGuarantee DeliveryWhy

22. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhy

23. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhyPortable & Unified

24. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhyServlet 3.0Blocking I/OPortable & UnifiedComet NativeWebSocketNew protocol

25. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhyServlet 3.0Blocking I/OPortable & UnifiedClientComet NativeWebSocketNew protocol

26. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhyServlet 3.0Blocking I/OGWTJQueryPortable & UnifiedClientJava EEComet NativeWebSocketGrailsJSFNew protocol

27. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhyJRubyServlet 3.0Blocking I/OGWTJQueryPortable & UnifiedClientJava EEComet NativeWebSocketGrailsJSFNew protocol

28. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhyJRubyGroovyServlet 3.0Blocking I/OGWTJQueryPortable & UnifiedClientJava EEComet NativeWebSocketGrailsJSFNew protocol

29. CacheJMSJGroupsOOM ManagerClusteringGuarantee DeliveryEvents AggregationProxyWhyJRubyScalaGroovyServlet 3.0Blocking I/OGWTJQueryPortable & UnifiedClientJava EEComet NativeWebSocketGrailsJSFNew protocol

30. Same API everywhere. No need to learn the protocol!

31. CometWebSocketIEChromeJQuery PluginAuto detect best transport to use! Emulate WebSocket!CometWebSocketWebSocketServer Side EventsSafariFirefoxOperaCometCometComet

32. Ya Ya YaThat’s impossible!

33. @Path("/pubsub/{topic}")@Produces("text/html;charset=ISO-8859-1")public class JQueryPubSub { private @PathParam("topic") Broadcaster topic; @GET public SuspendResponse<String> subscribe() { return new SuspendResponse.SuspendResponseBuilder<String>() .broadcaster(topic) .outputComments(true) .addListener(new EventsLogger()) .build(); } @POST@Broadcast public Broadcastable publish(@FormParam("message") String message) { return new Broadcastable(message, "", topic); }

34. function subscribe() { function callback(response) { if (response.transport != 'polling' && response.state != 'connected' && response.state != 'closed') { if (response.status == 200) { var data = response.responseBody if (data.length > 0) { $('ul').prepend($('<li></li>').text(" Message Received: " + data + " using transport: " + response.transport)); } } } } $.atmosphere.subscribe(document.location.toString() + 'pubsub/' + getElementByIdValue('topic'),callback : callback, $.atmosphere.request = {transport: getElementByIdValue('transport')}); }

35. JAX-RS and Jersey with AtmosphereRESTful and asynchronous Web applications JAX-RS is the Java API for RESTful Web services

36. Jersey is the reference implementation and provides additional functionality

37. Atmosphere leverages the extensibility of Jersey

38. Atmosphere and Jersey can evolve at their own rates

39. Combine JAX-RS and Atmosphere annotationsHigh-level Atmosphere conceptsLeveraging the power of REST, JAX-RS/Jersey @Suspend or SuspendResponse API