Portals and portlets

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Oct 31, 2013 (3 years and 7 months ago)

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Portals and portlets

Sean C. Sullivan

October 24, 2006

Portland Java Users Group

Overview


Portals


Portal servers


Java Portlets


Portlet programming


Portlet deployment


Demo

What is a portal?

A portal is a web based application that [...]
provides personalization, authentication, content
aggregation from different sources and hosts the
presentation layer of information systems

source: Java Portlet 2.0 specification

Portal servers


Liferay


JBoss Portal


Apache JetSpeed 2


Apache Pluto


eXo platform


uPortal



IBM Websphere Portal


BEA WebLogic Portal


Sun Portal Server


Oracle Portal

Portal server features


personalization


single sign
-
on


security: users, groups, roles


portlet admin: deploy, undeploy


page layout


pre
-
built portlets


Liferay portal demo


http://demo.liferay.net/

Portlet fragments

The content generated by a portlet is also
called a fragment. A fragment is a piece of
markup (e.g. HTML, XHTML, WML)
adhering to certain rules and can be
aggregated with other fragments to form a
complete document. The content of a portlet
is normally aggregated with the content of
other portlets to form the portal page.

source: Java Portlet 2.0 specification

Java Portlet specifications


Portlet 1.0


JSR
-
168


Portlet 2.0


JSR
-
286

Java Portlet API


javax.portlet.Portlet


javax.portlet.GenericPortlet


javax.portlet.ActionRequest


javax.portlet.ActionResponse


javax.portlet.RenderRequest


javax.portlet.RenderResponse



javax.portlet.Portlet


public void destroy()


public void init(PortletConfig cfg)


public void processAction(ActionRequest,
ActionResponse)


public void render(RenderRequest,
RenderResponse)

javax.portlet.GenericPortlet


protected void doView(...)


protected void doEdit(...)


protected void doHelp(...)


protected void processAction(...)


Hello World Portlet

public class HelloWorldPortlet


extends javax.portlet.GenericPortlet

{


public void doView(RenderRequest req,


RenderResponse resp)


{


resp.setContentType("text/html");


PrintWriter w = resp.getWriter();


w.println("Hello world");


}

}

JBoss Portal demo


http://portal.demo.jboss.com/

Portlet requests

1.
Action requests

2.
Render requests

Portlet modes

javax.portlet.PortletMode


1.
EDIT

2.
VIEW

3.
HELP

Portlet window states

javax.portlet.WindowState


1.
MAXIMIZED

2.
MINIMIZED

3.
NORMAL


Portlet deployment


WAR


web.xml


portlet.xml


What's new in Java Portlet 2.0?


Resource serving


Events


Portlet filters


alignment with WSRP 2.0


Additional topics


Caching


CSS


Internationalization


File upload


Inter
-
portlet communication


Wrapping existing applications


WSRP

Resources


http://wiki.java.net/bin/view/Javapedia/Portal


http://wiki.java.net/bin/view/Javapedia/Portlet


http://www.jcp.org/en/jsr/detail?id=168


http://www.jcp.org/en/jsr/detail?id=286