Ajax World Fall08

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Ajax World Fall08

  1. 1. Enterprise Case Studies For Ajax Push Steve Maryka, CTO Ryan Moquin, ICEsoft Technologies, Inc. Senior Software Engineer Felipe Leme, Principal Engineer ICESOFT TECHNOLOGIES INC. www.icefaces.org
  2. 2. ICEfaces is… ICEfaces is an Ajax framework that allows you to easily create server-centric Rich Internet Applications (RIA) in pure Java. • Open source • Standards-based • Extends JSF • Develop RIAs in pure Java, not JavaScript • Leverages existing Java ecosystem – Use existing IDE – Deploy to any App Server – Combine with leading Java frameworks – Enrich existing JSP applications Path of least resistance for Java developers ICESOFT TECHNOLOGIES INC. www.icefaces.org
  3. 3. Java EE Architecture ICESOFT TECHNOLOGIES INC. www.icefaces.org
  4. 4. Java EE Architecture + ICEfaces Standards-based Java EE/JSF Development Model ICESOFT TECHNOLOGIES INC. www.icefaces.org
  5. 5. Direct-to-DOM (D2D) DOM Ajax Bridge (Client) DOM (Server) Incremental DOM Updates Direct-to-DOM Delivers Automatic Ajax ICESOFT TECHNOLOGIES INC. www.icefaces.org
  6. 6. Golden Gate Demo ICESOFT TECHNOLOGIES INC. www.icefaces.org
  7. 7. HTTP And The Asynchronous Web • Normal HTTP Interaction Is User-initiated • Push Requires Inversion of the HTTP Protocol ICESOFT TECHNOLOGIES INC. www.icefaces.org
  8. 8. ICEfaces Push Mechanism Server Browser DOM DOM 3 DOM Update JSF App. 5 DOM Updates 4 Response (contains incremental update) Processed AJAX AJAX Bridge 1 Asynchronous XMLHttpRequest Bridge Application 2 State Change Another Request 6 10/10/08 Proprietary 8 ICESOFT TECHNOLOGIES INC. www.icefaces.org
  9. 9. ICEfaces Makes Push Simple • Configure Render Hub …requestRender() Push managed bean Render Hub • Register and populate render groups In Progress In Progress Waiting… Push Waiting… • Request a render from application logic • Framework does the rest Push ICEfaces Application ICESOFT TECHNOLOGIES INC. www.icefaces.org
  10. 10. Scalability Of Ajax Push • Long-lived Connections per Client – Leads to thread exhaustion under standard Servlet model • Standards Lagging – JSR 315 addresses asynchronous communications • Open Source Solutions Exist – Jetty 6 Continuations – Tomcat 6 Comet Processor – Glassfish Grizzly – ICEfaces Asynchronous HTTP Server ICESOFT TECHNOLOGIES INC. www.icefaces.org
  11. 11. C3 Demo ICESOFT TECHNOLOGIES INC. www.icefaces.org
  12. 12. What Are The Implications Of Mobile Ajax? • Resource-constrained Devices – Smaller footprint browser implementations – Limited memory for client-based applications • Limited Network Bandwidth – Application startup times • Network Latency – Application startup times – Server interaction delays • UI Paradigm Shift – Small real estate display – Alternate input devices ICESOFT TECHNOLOGIES INC. www.icefaces.org
  13. 13. Advantages Of ICEfaces For Mobile • Resource-constrained Devices – Lightweight client-side implementation • Limited Network Bandwidth – Small JavaScript means shorter load times – Minimal incremental updates • Network Latency – Ajax Push reduces hands-on user interaction • Security – Inherit Java EE Security Architecture ICESOFT TECHNOLOGIES INC. www.icefaces.org
  14. 14. incidentOS Demo ICESOFT TECHNOLOGIES INC. www.icefaces.org
  15. 15. ICEfaces Portal Integration • Markup Aggregation Within Portal Container – Standard JSF support • Ajax Interactions Bypass Portal Container – Eliminate Full-page Refresh • JavaScript Coexistent With Portal Container – Vendor-specific Portal • Multiple Portals Supported ICESOFT TECHNOLOGIES INC. www.icefaces.org
  16. 16. Ajax Push With Portals Portlet Portlet Portlet A View B View C View • Browser Connection Limits AJAX AJAX AJAX – Browser-side Connection Sharing Bridge Bridge Bridge • Multiple Web Applications – Server-side Connection Sharing Non-Blocking Blocking Non-Blocking Connection Connection Connection AHS Portlet B Portlet Portlet C A JMS Multi App/ Multi Portlet ICESOFT TECHNOLOGIES INC. www.icefaces.org
  17. 17. Q and A Stephen Maryka, CTO ICEsoft Technologies Inc. smaryka@icesoft.com Join us at: www.icefaces.org Or come visit us at our booth. ICESOFT TECHNOLOGIES INC. www.icefaces.org

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