Enterprise Service
Assembly with Apache
Tuscany SCA
Raymond Feng, Luciano Resende,
Simon Laws
IBM
PMC members of Apache Tuscany Project

Agenda
> Apache Tuscany
> SCA Benefits
> SCA Tours - Online Travel Sample Scenario
 Demo
 Features
 Building components with Java, Spring, JEE
 Wiring components with Web services, JMS, HTTP
 Web2.0 in the service assembly
 Your app goes mobile with Android
 Deploying applications standalone, in OSGi, in JEE
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Apache Tuscany
> Apache Tuscany provides a component based
programming model which simplifies development,
assembly and deployment and management of
composite applications in SOA.
> Apache Tuscany implements SCA standards
defined by the OASIS OpenCSA and also provides
extensions based on real user feedback.
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What’s new with Apache Tuscany
> 1.x Code Stream
 OSOA Based SCA Specification
 Stable code base
 SCA Java 1.5 Released 05/31/2009
> 2.x Code Stream
 OASIS OpenCSA Specification
 OSGi enabled runtime
 SCA Java 2.0 M2 Released on 04/15/2009
 M3 Released being prepared
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The power of Tuscany/SCA
> Quick prototype for PoC to convince your boss in
hours
 Mock up new functions (POJOs)
> Reuse existing assets (Java classes, BPEL, Spring,
JEE, OSGi)
> Talk to external services transparently
 (WS, RMI, CORBA, EJB, JMS, …)
> Expose services to other clients transparently
 (WS, JSONRPC, FEED, RMI, CORBA …)
> Built-in interaction patterns:
 Req/Res, Oneway, Callback
> Run and debug directly within the IDE
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SCA Tours
Online Travel Sample Scenario
http://svn.apache.org/repos/asf/tuscany/sandbox/travelsample
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SCA Tours - Travel Booking (Page #1)
fu lla p p - u i ( 8 0 8 0 ) fu lla p p - fr o n te n d ( 8 0 8 4 ) fu lla p p - p a c k a g e d tr ip ( 8 0 8 5 )
T rip
T r a v e lC a ta lo g P a r tn e r
Java
T us c anyS C A
T o u rs U I S C A To u rs
> ls - ls a
Java
fu lla p p - b e s p o k e tr ip ( 8 0 8 6 )
H o te l
P a r tn e r
Java
T rip B o o k in g
123
456 F lig h t
789 W id g e t Java P a r tn e r
Java
Java
C ar
P a r tn e r
Java
fu lla p p - c u r r e n c y ( 8 0 8 3 )
C u rre n c y
C o n v e r te r
E JB
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SCA Tours - Travel Booking (Page #2)
fu lla p p - s h o p p in g c a r t ( 8 0 8 7 ) p a ym e n t (8 0 8 1 ) c re d ic a rd (8 0 8 2 )
C r e d itC a r d
S h o p p in g C a rt P a y m e n tP r o c e s s
Java
S p rin g
Java
p a y m e n tw e b
C r e d itC a r d U I
C a r tS to r e E m a ilG a te w a y
> ls - ls a
Java S c rip t
S e rv le t
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SCA Tours
Online Travel Sample Scenario
DEMO
http://svn.apache.org/repos/asf/tuscany/sandbox/travelsample
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Web 2.0 Client Application
SCA Tours Travel
Catalog
Implementation.java Implementation.java
implementation.widget
Embedded Tomcat
Trip
Booking
Implementation.java
Shopping
Cart
Implementation.java
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SCA Composite for Tuscany Widget
<composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
targetNamespace="http://scatours"
xmlns:scatours="http://scatours"
xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.0"
xmlns:pp="http://www.example.org/PaymentProcess"
name="ui">
<component name="scatours">
<tuscany:implementation.widget location="scatours.html"/>
<service name="Widget">
<tuscany:binding.http uri="/scatours"/>
</service>
<reference name="scaToursCatalog" target="SCAToursComponent/SCAToursSearch">
<tuscany:binding.jsonrpc/>
</reference>
<reference name="scaToursBooking" target="SCAToursComponent/SCAToursBooking">
<tuscany:binding.jsonrpc/>
</reference>
<reference name="scaToursCart" target="SCAToursComponent/SCAToursCart">
<tuscany:binding.jsonrpc/>
</reference>
</component>
</composite>
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Mobile Client Application with Android
SCA Tours Travel
Catalog
Implementation.java Implementation.java
Trip
Booking
Implementation.java
Shopping
Cart
Implementation.java
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Credit Card Payment Scenario
creditcard.jsp
RFC 119: Distributed OSGi
implementation.web
Tomcat
binding.rmi
Credit Card Currency
binding.ws
Payment Converter
implementation.osgi implementation.osgi
Web Service
Client Equinox Equinox
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SCA composite for the Web component
<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200903"
targetNamespace="http://creditcard"
name="CreditCardPaymentWeb">
<component name="CreditCardPaymentWeb">
<implementation.web web-uri="" />
<reference name="service">
<interface.java
interface="scatours.payment.creditcard.CreditCardPayment"/>
<binding.ws uri="http://localhost:8082/CreditCardPayment" />
</reference>
</component>
</composite>
> JSP
<%@ taglib uri="http://www.osoa.org/sca/sca_jsp.tld" prefix="sca"%>
<sca:reference name="service"
type="scatours.payment.creditcard.CreditCardPayment" />
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Distributed OSGi with Tuscany/SCA
Local Service
OSGi Service Local OSGi Service
SCA Service Registry Implementation
CreditCard
Payment
Web
Service
Currency
Converter RMI
SCA References
SCA proxies
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OSGi services in the SCA domain
CreditCard
Currency
Payment
Converter
Credit Card Payment
Currency Converter
Bundle
Bundle
Node #1 Node #2
SCA Domain
binding.rmi
Credit Card Currency
binding.ws Payment Converter
implementation.osgi implementation.osgi
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SCA composite for the OSGi bundle
<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200903"
xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.1"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://creditcard"
name="CreditCardPaymentComposite">
<component name="CreditCardPaymentComponent">
<tuscany:implementation.osgi
bundleSymbolicName="scatours.creditcard.payment" bundleVersion="1.0.0" />
<service name="CreditCardPayment">
<binding.ws uri="http://localhost:8082/CreditCardPayment"/>
</service>
<reference name="currencyConverter">
<tuscany:binding.rmi uri="rmi://localhost:8085/CurrencyConverter"/>
</reference>
</component>
</composite>
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Raymond Feng (rfeng@apche.org)
Luciano Resende (lresende@apache.org)
http://tuscany.apache.org
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