Ajax In Enterprise Portals

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My Ajax In Enterprise Portals presentation from AjaxWorld West '08

My Ajax In Enterprise Portals presentation from AjaxWorld West '08

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  • 1. Ajax in Enterprise Portals Wesley Hales http://wesleyhales.com
  • 2. Wesley Hales is: • JBoss Portal Lead UI Guy • Author of InfoQ article series: Developing Portlets using JSF, Ajax, and Seam • JBoss Portlet Bridge project lead • JSR-301 Expert Group member
  • 3. Introductions • Your experience with portals? • What do you want to gain from this session?
  • 4. Portals & Portlets What is a Portal? • Windows that provide access to web applications and other information. • Works across organizational boundaries to aggregate content coming from various web technologies: JSF, Seam, OpenSocial, Wicket, PHP, Struts...
  • 5. Portals & Portlets Portlets • Are managed by a portal/portlet container. • Portlet windows are aggregated via a portal page. • A Portlet Application is also a Web Application. The Portlet Application may contain servlets and JSPs in addition to portlets. Portlets, servlets and JSPs may share information through their session.
  • 6. Portlet Ajax vs. Regular (Servlet) Ajax Pitfalls with 1.0 portlets • portlet URL’s point to the portal, not to the portlet • You cannot make asynchronous calls to portlets through portlet URLs • This results in the replaced markup being all the portal page markup not just the portlet window fragment. How we handle it • Because a portlet is a Web application that can contain other resources, such as servlets and JSP pages, you can make the asynchronous requests to the resources that are bundled with the portlet.
  • 7. Standard Portlet 1.0 Ajax
  • 8. Ajax gets better with Portlet 2.0 serveResource and resourceUrls • With the newer (JSR-286) spec, we now have the serveResource() mechanism that makes Ajax easier. • Makes it easy to migrate existing JSR 168 applications • Works with existing client-side libraries • Partial updates to the portlet’s UI
  • 9. Portlet 2.0 Ajax
  • 10. View Portlet 2.0 Ajax Demo on YouTube JSR-286 Ajax Demo
  • 11. Today's Ajax Component Libraries • What libraries are available to portlet developers? • Do I have to use JSF? • It is only framework (currently) with a spec backing it for portlets. • Two of the more popular libraries for JSF are: • IceFaces • Uses custom built bridge • RichFaces • Works with a JSR-301 based bridge
  • 12. What is a Bridge, and why do we need one? • There are different bridges to handle many different web applications. • Wicket • Seam • Spring MVC • JSF • Struts • PHP • A bridge is often just a portlet written to handle the web application processing and lifecycle.
  • 13. Portlet Other component libraries, like IceFaces, provide their own quot;bridgequot; or way to handle the portlet and JSF lifecycles.
  • 14. View IceFaces Component Demo on YouTube IceFaces Portlet Demo
  • 15. IceFaces Portlet Markup
  • 16. RichFaces Portlet The RichFaces component library runs under the JBoss Portlet Bridge, an implementation of the JSR-301 specification to support JSF within a portlet.
  • 17. View RichFaces Component Demo on YouTube RichFaces Portlet Demo
  • 18. RichFaces Portlet Markup
  • 19. Portlet Bridge Summary • Standards make life easier when investing in a portlet/Ajax/Component solution • Currently the JBoss Portlet Bridge supports any combination of JSF, Seam, and RichFaces to run inside a portlet. • It is currently in Beta 4 and should be approaching GA sometime in early '09 wen the spec is finalized. • JSR 301 scheduled to be complete early ’09 (168)
  • 20. Today’s Challenges The Portal is “the glue” that holds all of the portlet windows together. What if each portlet uses it’s own library? • YUI, jQuery, Prototype and yajf... • Conflicts and collisions Solutions? • Namespaced libraries • Today, JBoss Portal limits its usage of Javascript libraries for that specific reason • ideas?
  • 21. Mashups and OpenSocial Portlets • Who is doing it? • Are there any portlets available that make this easy?
  • 22. View Quickstart Demo on YouTube QuickStart Portlet Demo
  • 23. Questions? • IceFaces Portlet Setup Info http://tinyurl.com/3l2fuz • JBoss Portlet Bridge http://www.jboss.org/portletbridge/ • email: whales@redhat.com