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ICESOFT TECHNOLOGIES INC. www.icefaces.org
Steve Maryka, CTOICEsoft Technologies, Inc.
Enterprise Case Studies ForAjax Push
Ryan Moquin,Senior Software Engineer
Felipe Leme,Principal Engineer
ICESOFT TECHNOLOGIES INC. www.icefaces.org
ICEfaces is…
Path of least resistance for Java developers
ICEfaces is an Ajax framework that allows you to easily createserver-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
ICESOFT TECHNOLOGIES INC. www.icefaces.org
Java EE Architecture
ICESOFT TECHNOLOGIES INC. www.icefaces.org
Java EE Architecture + ICEfaces
Standards-based Java EE/JSF Development Model
ICESOFT TECHNOLOGIES INC. www.icefaces.org
Direct-to-DOM (D2D)
Direct-to-DOM Delivers Automatic Ajax
DOM(Server)
DOM(Client)
Incremental DOM Updates
Ajax Bridge
ICESOFT TECHNOLOGIES INC. www.icefaces.org
Golden Gate Demo
ICESOFT TECHNOLOGIES INC. www.icefaces.org
• Normal HTTP Interaction Is User-initiated
• Push Requires Inversion of the HTTP Protocol
HTTP And The Asynchronous Web
10/10/08 Proprietary 8ICESOFT TECHNOLOGIES INC. www.icefaces.org
ICEfaces Push Mechanism
DOM
JSF App.
AJAXBridge
DOM
AJAXBridge
Server Browser
ApplicationState Change2
DOM Update3
1 Asynchronous XMLHttpRequest
4 Response (contains incremental update)
6Another Request
5
DOM UpdatesProcessed
ICESOFT TECHNOLOGIES INC. www.icefaces.org
ICEfaces Application
Render Hub
• Configure Render Hubmanaged bean
ICEfaces Makes Push Simple
• Register and populaterender groups
• Framework does the rest
In ProgressIn ProgressWaiting…Waiting…
Push
Push
Push
• Request a render fromapplication logic
…requestRender()
ICESOFT TECHNOLOGIES INC. www.icefaces.org
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
C3 Demo
ICESOFT TECHNOLOGIES INC. www.icefaces.org
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
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
incidentOS Demo
ICESOFT TECHNOLOGIES INC. www.icefaces.org
• Markup Aggregation WithinPortal Container– Standard JSF support
• Ajax Interactions BypassPortal Container– Eliminate Full-page Refresh
• JavaScript Coexistent WithPortal Container– Vendor-specific
• Multiple Portals Supported
ICEfaces Portal Integration
Portal
ICESOFT TECHNOLOGIES INC. www.icefaces.org
• Browser Connection Limits– Browser-side Connection Sharing
• Multiple Web Applications– Server-side Connection Sharing
PortletA View
PortletB View
PortletC View
AJAXBridge
Non-BlockingConnection
Portlet B
Portlet A
AHS
BlockingConnection
Non-BlockingConnection
Portlet C
JMS
AJAXBridge
AJAXBridge
Multi App/ Multi Portlet
Ajax Push With Portals
ICESOFT TECHNOLOGIES INC. www.icefaces.org
Stephen Maryka, CTOICEsoft Technologies [email protected]
Join us at: www.icefaces.orgOr come visit us at our booth.
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