1.
Composite SOA Frameworks
Evgeny Epifantsev
December 2009
Updated 2012
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2.
Trainer contacts
• Evgeny Epifantsev
• Developer
• eepifantsev@exigenservices.com
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3.
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Goals
3
ESB structure and technologies basis.
ESB frameworks

4.
Agenda
• Service mapping (ESB) and routing (UDDI)
• Component containers: SCA/JBI/OSGi
• ESB overview.
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5.
Enterprise Service Bus
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ESB
Requests
Responses
Requests
Responses
Service
Requester
Service
Provider
Phone with wap - WXML/HTTP
.NET - SOAP/HTTP
C++ - XML/JMS
SAP - BAPI
WebSphere 5.1 - SOAP/JMS
SAP - BAPI
External partner - SOAP/HTTPS
User application - RMI
Database – SQL
Application - XML/JMS

6.
ESB capabilities
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Routing
Message
transformation
Message
enhancement
Message
processing
Security
Transaction
management Service
orchestration
Process
choreography
Mapping
service
Protocol
transformation
BPM
ESB part 1
Service Design
Principles and Patterns
SOA
security
Web security

7.
Routing: UDDI
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UDDI – service routing
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3
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Client wants to call service 1 (client doesn’t know service1 endpoint )
1. All services are registered in UDDI
2. Client call UDDI “I need service1, where is it?”
3. UDDI search that service in repository and return service1 endpoint
4. Client call service1 on endpoint was got from UDDI
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UDDI summary
Universal Description, Discovery and Integration
 UDDI provides a standards-based set of specifications for service description and
discovery. Extensible Markup Language (XML) which used for WSDL for describe services
 UDDI supports a highly flexible description of services with metainformation
(Service Layer Agreement)
 WS-SecurityPolicy
Benefits:
 Simplify business-to-business (B2B) interaction
 Separate service from description
 Allow hot switch to other service location
 Providing Application Visibility at Design Time
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Service routing(Versions)
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WSDL v1
MakeOrder (Person person)
saveOrTradeOrder(Person person)
WSDL 2

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Service mapping (Person)
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WSDL
Business service definition
MakeOrder (Person person)
MakeOrder (Person person)
give me endpoint
http://example.com/saveOrplaceOrder
saveOrTradeOrder(Person person)
Java
publish
implementation service for
saveOrTradeOrder(Person person)
2
3
4
5
1

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Service mapping (Name , Address)
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WSDL
Business service definition
MakeOrder (Person person)
MakeOrder (Person person)
give me endpoint
http://example.com/saveOrplaceOrder_v2
publish
saveOrTradeOrder(String name, String address)
Java
implementation service for
saveOrTradeOrder(String name, String address)
2
3
4
5
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getPersonAddr(Person person)
1

13.
Modules List
Script engine
Security
• Acegy
• JAAS
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protocol
transformation
Message
processing
• ActiveMQ
• JBossMQ
• OracleAQ
• MQ Series
message
transformation
• xslt
• Smooks
• Doozer
• Xquery
• Oakland
routing
• Xpath
• Eip engine
• Camel
Transaction
• Email • XA
• ftp
• HTTP
• JTA
• TCP
• CXF
Service
choreography
Service
orchestration
• Groovy • jBPM
• BEPL

14.
Component containers: JBI
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JBI (JSR-208)
Java Business Integration (JBI) specification (Oracle)
 The goal of JBI is to create a standards-based architecture for integrating
middleware components to perform ESB capabilities
 The JBI Specs is not concerned about how external consumers or service providers
interact, but rather how internal consumers and providers interact
 JBI dependent on J2SE but not J2EE
 JBI defines two types of components
- Service Engines (process choreography, transactions, security, message
transformation, protocol transformation)
- Binding components ( XML, HTTP, MQ, IIOP)
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JBI
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jbi.xml - installation descriptor define a unique
component name and type along with the
classpath settings that are required during
installation and runtime of the component.
Life Cycle

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JBI Specification architecture
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BC – Binding components SE – Service Engine
Standard Can be open source
WSDL
WSDL

18.
JBI Specification architecture
Java / Swing Java / EJB Servlet
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Standard Can be open source
WSDL
WSDL

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JBI summary
JBI advantages and the effect on commercial ESBs
 Third party Custom Service Engines (SE) and Binding Components (BC) can be
swapped in and out without impacting applications or services
 Avoids “Vendor lock-in”
 We can swap in and out integration services (i.e. capabilities) we don’t need, creating
a lighter-weight solution that meets our specific needs
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Component container: OSGI
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OSGI - Open Services Gateway Initiative
high cohesion low coupling
Make something one, but done it perfect How module interact with other modules
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Foo.jar
Bar.jar
Runtime class space
Load into JVM
Foo.jar
Bar.jar
• No borders between jar into JVM
• Can’t use many versions of one
library

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Architecture
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low coupling high cohesion
Bundle = JAR + modified MANIFEST.MF
Name
Version
Dependency
etc.
Bundle life cycle: INSTALLED, RESOLVED,
STARTING, ACTIVE,STOPPING, UNINSTALLED

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Environment (pax runner)
com.springsource.instrumented.org.springframework.context.instrumented
com.springsource.instrumented.org.springframework.beans.instrumented
com.springsource.management.com.springsource.management.agent.monitoring
com.springsource.instrumentation.com.springsource.management.instrumentation.springframework.applicationcontext
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# Javax
scan-bundle:mvn:javax.resource/com.springsource.javax.resource/1.5.0@5
scan-bundle:mvn:javax.xml.ws/com.springsource.javax.xml.ws/2.1.1@5
scan-bundle:mvn:javax.xml.bind/com.springsource.javax.xml.bind/2.1.7@5
scan-bundle:mvn:javax.activation/com.springsource.javax.activation/1.1.1@5
scan-undle:mvn:javax.xml.stream/com.springsource.javax.xml.stream/1.0.1@5
scan-bundle:mvn:javax.xml.soap/com.springsource.javax.xml.soap/1.3.0@5
scan-bundle:mvn:javax.wsdl/com.springsource.javax.wsdl/1.6.1@5
scan-bundle:mvn:javax.servlet/com.springsource.javax.servlet/2.5.0@5
scan-bundle:mvn:org.aopalliance/com.springsource.org.aopalliance/1.0.0@3
scan-bundle:mvn:org.aspectj/com.springsource.org.aspectj.lib/1.5.4@3
scan-bundle:mvn:org.aspectj/com.springsource.org.aspectj.runtime/1.5.4@3
scan-bundle:mvn:com.springsource.instrumented/org.springframework.aop.instrumented/2.5.7.RELEASE@3
scan-bundle:mvn:com.springsource.instrumented/org.springframework.beans.instrumented/2.5.7.RELEASE@3
scan-bundle:mvn:com.springsource.instrumented/org.springframework.context.instrumented/2.5.7.RELEASE@3
scan-bundle:mvn:com.springsource.instrumented/org.springframework.context.support.instrumented/2.5.7.RELEASE@3
scan-bundle:mvn:com.springsource.instrumented/org.springframework.core.instrumented/2.5.7.RELEASE@3
scan-bundle:mvn:com.springsource.instrumentation/com.springsource.management.instrumentation.springframework.context/…
scan-bundle:mvn:com.springsource.instrumentation/com.springsource.management.instrumentation.springframework.application…
scan-bundle:mvn:com.springsource.instrumentation/com.springsource.management.instrumentation.springframework.context.support
scan-bundle:mvn:com.springsource.instrumentation/com.springsource.management.instrumentation.springframework.beans/…
scan-bundle:mvn:com.springsource.management/com.springsource.management.agent.monitoring/2.5.7.RELEASE/@5
scan-bundle:mvn:com.springsource.management/com.springsource.management.agent.config/2.5.7.RELEASE/@5
scan-bundle:mvn:com.springsource.management/com.springsource.management.agent.control/2.5.7.RELEASE/@5
scan-bundle:mvn:com.springsource.management/com.springsource.management.agent.inventory/2.5.7.RELEASE/@5
scan-bundle:mvn:com.springsource.management/com.springsource.management.agent.discovery.domain/2.5.7.RELEASE/@5
scan-bundle:mvn:com.springsource.management/com.springsource.management.agent.discovery.resource/2.5.7.RELEASE/@5

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OSGI summary
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• Every bundle has his own class space. All data in bundle are private
• Bundle repository. Public only interfaces, not implementation
• Can be many version of one bundle in one OSGI framework
• Lifecycle management on the fly
• Strictly naming conversion
- bundle’s symbolic name
- version number
OSGI containers: Equinox , Apache Felix
knopflerfish

25.
Component containers: SCA
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26.
SCA -Service Component Architecture
Component:
 Implementation: Java, C++, BEPL …
 Communication configuration: SCDL .composite file
(Service Component Definition Language )
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SCA - is a set of OASIS specifications which describe a model for building
applications and systems using a Service-Oriented Architecture.
<composite name="ExampleComposite" ...>
<component name="Component1"> ... </component>
<component name="Component2"> ... </component>
<component name="Component3"> ... </component>
</composite>

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SCA structure
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BEA, IBM, IONA, Oracle, SAP, Siebel Systems и Sybase
service
Reference Domain-defined communication
property
Bindings Webservice or other communication
ZIP

28.
SCA application structure
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SCA runtime
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No specs how SCA should be implemented -
Several vendors Tuscany and Fabric3 , IBM …

30.
SCA vs OSGI vs JBI
OSGI – Declarative dependency management.
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JBI vs OSGI:
SCA
Low level integration. Mobile devices
JBI – Standard messaging processing
High level component integration.
Container model for an Enterprise Service Bus
SCA – A model on how to assemble composite applications
Language-independent
Policy support
Separate implementation and binding.
Vendor lock-in
Distributed heterogeneous system.

31.
Requirements
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IBM Oracle
Hardware Pentium at 2.4GHz or AMD Opteron (32-bit
only)
1 GB physical memory
Application Server IBM WebSphere Application Server 7.0 Oracle WebLogic
Java IBM Java SDK 6.0 SR6
IDE Integration Developer
Support standards JAXWS 2.1.1, JAXB 2.1.3, SAAJ 1.3 и StAX
1.0.
WS-Atomic Transactions
SecureFTP; Oracle BPEL PM;
SOAP/HTTP и SOAP/JMS, SOAP 1.2, WSDL 1.1, SAP, Siebel, PeopleSoft, JMS,
WebSphere MQ, SCA , REST, WS-BEPL
WS-Addressing, WS-I Basic Profile V1.1, WS-Security, WS-Reliable Messaging 1.0,
WS-Policy, UDDI v3
Data representation Service Message Object (extends SDO) XML, MFL
Deployment EAR
SCA, OSGI JBI, SCA, OSGI

32.
Projects and technologies
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JBI SCA OSGI Custom
IBM WebSphere 7.0 + +
Eclipse Swordfish
project 1.0
+ + +
OW2 PEtALS 3.1 + +
ServiceMix/Fuse 4.0 support +
OpenESB/GlassFish
2.2
+
Oracle ESB 11g + + +
JBoss ESB 4.10 +
WSO2 3.0 +
Mule 3.2.0 support +

33.
Thank You!
Questions?
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