Jasig Sponsored Portlets
These portlets have been through the incubation process and emerged as sponsored projects.

Jasig Incubating Portlets
These portlets are currently incubating.

Community Portlets
These portlets have been developed and offered for sharing by Jasig community members.

Note: Administrative Portlets are listed in the uPortal Manual.

Portlet Incubation

Portlets that should become Jasig hosted portlets should be submitted for incubation following the process documented in the Incubation wiki space.

Portlet Release Manager

Jasig has defined the role of Portlet Release Manager to help facilitate the Jasig portlet life cycle.

Portlet Developer Information

Developers who wish to share their portlet on this space simply need to add a new child page to the Community Portlets page, then enter their portlet information using the "Portlets Template" provided in this space.

Can't find the portlet you want? We provide resources for users to develop their own portlets.

Portlet Solutions Flowchart

Portlet Development FAQ

Clustering JSR-168 Portlet Applications in Tomcat — JSR-168 Portlet applications represent a special challenge when it comes to clustering within Tomcat (or any other servlet container, for that matter). In order to effectively cluster web applications, session data must be replicated or shared between the nodes in the cluster. Otherwise, the user experiences a complete loss of context during a node failover. While Tomcat has provided session replication for quite some time, it has not supported replication of session changes resulting from a cro
JBoss Forums Portlet — The JBoss Forums Portlet http://labs.jboss.com/portal/index.html?ctrl:id=page.default.downloads&project=portletswap&category=.portlets.collaborate can only be deployed in the JBoss Portal. There are several calls to JBoss portal specific services, which do not exist in uPortal.
Sharing uPortal's Connection Pool with Portlets on Tomat 5.5 — Portlets, being their own application on Tomcat, do not inherently have access to uPortal's connection to the database. Fortunately, however, you can move uPortal's database connection context to a global context which is visible to your portlets. Many thanks to Chris Holdorph form UNICON for his insight, and Gregg Lagnese, MicroDeveloper, Inc. for his online Oracle JNDI reference http://www.microdeveloper.com/html/JNDI_Orcl_Tomcatp3.html. As a note, these modifications were made on uPortal 2
Integrating Alfresco with uPortal — Alfresco offers a portlet version of their web application. This can be

Portlet Development Technologies and Frameworks

Struts Bridge — This document will explore how a Struts http://struts.apache.org/ application can be modified to work as a JSR168 compliant portlet. It will hopefully serve as a useful reference guide for those planning to install the Struts Bridge http://portals.apache.org/bridges/multiproject/portals-bridges-struts/index.html into their existing Struts applications. As an example we'll use the iBATIS http://ibatis.apache.org/ version of Petstore application, the Petstore is a commonly implemented demonstratio
- LocalHsqldbConfigurator
portlet defineObjects tag extension — The portlet tag library includes a tag called <portlet:defineObjects/>. This tag establishes three objects; renderRequest, renderResponse and portletConfig for use in included portlet JSP pages. Although you can certainly access some useful information through these objects using the JSTL tag library, accessing scoped variables and the like will require the use of scriptlets. JSTL users are used to having access to scoped variables via the JSTL implicit objects (requestScope, sessionScope, ap

Portlet Development

Information about the Portlet APIs and Jasig's best practices for portlet development.

Accessibility and Portlet Development
Minimized WindowState Handling
Techniques for integrating AJAX within Spring Web Flow Portlets
Portlet Internationalisation
AJAX in a JSR-168 Portlet — Recommended solutions for using AJAX in a portlet
Contributing Portlets to Jasig
JSP Best Practices
Portlet Modes — Using and switching between JSR-168 portlet modes
Setting a New Item Count
Automatically Reload a Portlet
Security Information for Portlet Developers
JavaScript Best Practices — JavaScript usage in portlets requires care by the portlet developers to avoid library, version and namespace conflicts with both the portal framework and other portlets on the same page.
Portlets using Proxy CAS
- CASifying Apache Pluto portal driver
CSS Best Practices — CSS usage in portlets requires care by the portlet developers to avoid styling conflicts with both the portal framework and other portlets on the same page.
Logging Best Practices
Portlet Preferences
Accessing Portal Roles and User Attributes — Accessing uPortal groups and user attributes from the portlet environment.
Portlet Request Lifecycle
Example Portlets

Troubleshooting Portlet Deployment

Sharing Portlets

Portlets from other Portals

External resources

Spring PortletMVC
- A framework that provides an MVC layer for the Portlet API in the same way that Spring WebMVC does for the Servlet API.
TestingPortlets
PORTLETUNIT is a jUnit Java Unit Testing Framework for testing JSR-168 portlets. It is built on ServletUnit and Pluto. It provides a mock portlet container as ServletUnit provides a mock servlet container.
Spring in Channels and Portlets
Tapestry Portlet Support
Messaging in portlets, test portlets

Portlet Community

Freshmeat Portlet category lists several projects that are portlets or have portlet interfaces.
Google Portlet
Portlet Open Source Trading Site (POST)
- This is sort of a clearinghouse for portlets started by Plumtree, Documentum, BEA, and Sun.
java.net Portlet Community
- Portlet-related open source projects, articles, tips, news, product announcements, blogs and FAQs. Contains another clearinghouse for portlets called Gems
Ajax Patterns Portlets The work that Claude Hussenet has done is quite nice. He's using DWR, an AJAX implementation that I've been using on another project.
JSR-168 Yahoo! Group
JBoss PortletSwap - downloadable portlets, portlet forums, etc
JA-SIG Clearinghouse - downloadable portlets, channels, other java projects
Portlets from other Portals

Portlet Training

Portlet Development - Unicon, Inc.
- A 3-day course serving as an introduction and guide to developing standards-compliant (JSR-168) portlets.
- Next course: http://www.unicon.net/content/portlet-development-training-course