WSRP IntroductionWeb Services For Remote Portals

Scott Ryan, Denver BEA User’s Group March 3, 2004

WSRP The Standard

• OASIS managed Standard• Current Version is 1.0• Web Services For Remote Portlets• WSRP v1.1 - planned for early-mid 2004 • WSRP v2.0 - planned for early-mid 2005

Overview

• Web Services for Remote Portlets (WSRP) has defineda standard for interactive, presentation-oriented web services.

• WSRP defines:o A WSDL interface description for invocation of WSRP serviceso Semantics for interacting with WSRP services that can not be

expressed in WSDL.o Markup fragment rules for markup emitted by WSRP services

• Companies involved with WSRP:o BEA, Bowstreet, Citrix, Commerce One, Computer Associates,

CrossWeave, Divine, Drake Certivo, Factiva, France Telecom, Fujitsu, Gluecode, HP, IBM, Interwoven, Kinzan, Lexis-Nexis, Lotus, MacDonald Bradley, Microsoft, Moravia IT, Netegrity, Novell, Oracle, Peoplesoft, Perficient, Plumtree, Reed Elsevier, SAP, SeeBeyond, Silverstream, Stellent, Sun Microsystems, Sybase, Tibco , Vignette, WebCollage

WSRP Services Plug&Play with Portals

PortalsWSRPServicesPortalsPortals

PortalsPortalsClientsClients

WebClientsWeb

ClientsWeb

ClientsWeb

ClientsWeb

ClientsWeb

ClientsWeb

ClientsWeb

ClientsWeb

ClientsWeb

Clients

PortalsPortals

Registry

PortalsPortalsPortals

Publish

Find

WSRPServicesPortalsPortals

Bind

WSRPServices

e.g.

WSRP Goals

• Enable interactive, presentation-oriented web services to be easily plugged into standards-compliant portals

• Ensure concepts and data exchanged are aligned with other standards in both the portal and web service arenas.

• Make the Internet a marketplace of visual web services, ready to be integrated into portals

Scenario: Use of WSRP in Portals

• Portals can aggregate presentation from many WSRP services

• WSRP services can be aware of portal contexto User profile from portalo Desired locale and markup-typeo Active user agent

Aggregated HTML, WML, VoiceXML,

... over HTTP

Mark-Up FragmentsTransferred via SOAP

PortalWSRP Service

WSRP Service

WSRP Service

WSRP Consumer WSRP Producer

ServerPortal

Portals

Scenario: Portal sharing Portlets

• Users of the second portal (WSRP Consumer) can select remote portlets like any local portlet and put them on their pages

• In this case, the portal providing a portlet as a WSRP service adheres to the WSRP protocol and contracts just like any other WSRP Producer service

Huge numberof users

Portals as Intermediaries,Caching offloads requests

from WSRP Producer

Publishing Portal

WSRPInterface

PortalsPortalsPortalPortlet

Portlet

Portlet

WSRP Consumer WSRP Producer

Scenario: Use of WSRP in Client Apps

• Applications may embed WSRP Services through plugin mechanisms, e.g. COM Components or ActiveX Controls

• In this case, the plugin in the client application adheres to the WSRP protocol and contracts as a WSRP Consumer

Rendering withinclient application‘s view

User Info, Actions, Markup Fragments

Transferred via SOAP

Application(e.g. Word, Outlook, ...)

WSRP Service

WSRP Service

WSRP Service

WSRP Consumer WSRP Producer

Perform Portlet Action

Destroy Portlet clone

Clone Portlet

Abstract Portal ⬄ WSRP Interaction

WSRP Consumer(Portal)

WSRP Producer(Service)Adds

Portlet

RemovesPortlet

ClickAction

Get Portlet MarkupI S

S

User

ViewPortlet

Allocate new clone

Generate Markup,(opt: create Session)

Action Handling(opt: create Session)

I

I

A

I A

I

I A

I

I S

IDestroy clone

I

AS

I A

WSRP and related Standards

WSRP

SOAP(Invocation)

WSDL(Description)

UDDI(Publish,Find&Bind)

(X)HTML

WML VoiceXML

cHTML...

WSRP and Portlet API(s)

Web Services for Remote Portals (WSRP)

Java Portlet API (JSR 168)

C# “Portlet API“

(.NET). . .

Platform Independent Web ServiceInterface

Platform specific, local Portlet APIs

Portlet APIs may be defined for different programming languages; WSRP can bridge between the different platforms, leveraging platform independence of Web services

Goal:Portlets written to Portlet API(s) can be published as WSRP services

WSRP Impl. onplain J2EE or .NET

platform

BEA Support

• Supported in 8.1 SP 2 with Downloaded support Kit

• Full support coming in Future service pack release

• Need Platform or at least Portal edition.