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. Goals
ESB structure and technologies basis.
ESB frameworks
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4. Agenda
• Service mapping (ESB) and routing (UDDI)
• Component containers: SCA/JBI/OSGi
• ESB overview.
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5. Enterprise Service Bus
Phone with wap - WXML/HTTP SAP - BAPI
.NET - SOAP/HTTP External partner - SOAP/HTTPS
ESB
Service Requests Requests Service
Responses Responses
Requester Provider
C++ - XML/JMS User application - RMI
SAP - BAPI Database – SQL
WebSphere 5.1 - SOAP/JMS Application - XML/JMS
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6. ESB capabilities
Message Message
Protocol Message
transformation enhancement
transformation processing
SOA
security
Routing
Security
Web security
ESB part 1
Mapping Service Design
service Principles and Patterns
BPM
Transaction Process
management choreography
Service
orchestration
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7. Routing: UDDI
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8. UDDI – service routing
4
3 1
2
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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9. 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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10. Service routing(Versions)
MakeOrder (Person person)
WSDL v1 WSDL 2
saveOrTradeOrder(Person person)
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11. Service mapping (Person)
MakeOrder (Person person)
WSDL
2
Business service definition 3
MakeOrder (Person person) give me endpoint
http://example.com/saveOrplaceOrder
4
5
1
Java
publish
saveOrTradeOrder(Person person) implementation service for
saveOrTradeOrder(Person person)
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12. Service mapping (Name , Address)
MakeOrder (Person person)
WSDL
2
Business service definition
MakeOrder (Person person) 3 give me endpoint
5
http://example.com/saveOrplaceOrder_v2
6
4
1 Java
getPersonAddr(Person person) publish
saveOrTradeOrder(String name, String address)
implementation service for
saveOrTradeOrder(String name, String address)
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13. Modules List
protocol Message message routing Transaction
transformation processing transformation
• Email • ActiveMQ • xslt • Xpath • XA
• ftp • JBossMQ • Smooks • Eip engine
• HTTP • OracleAQ • Doozer • Camel
• JTA • MQ Series • Xquery
• TCP • Oakland
• CXF
Service Service
Script engine orchestration choreography
Security
• Groovy • Acegy • BEPL • jBPM
• JAAS
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14. Component containers: JBI
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15. 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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16. JBI
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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17. JBI Specification architecture
BC – Binding components SE – Service Engine
WSDL
WSDL
Standard Can be open source
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18. JBI Specification architecture
Java / Swing Java / EJB Servlet
WSDL
WSDL
Standard Can be open source
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19. 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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20. Component container: OSGI
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21. OSGI - Open Services Gateway Initiative
high cohesion low coupling
Make something one, but done it perfect How module interact with other modules
Foo.jar Runtime class space
Foo.jar
• No borders between jar into JVM
Load into JVM
Bar.jar • Can’t use many versions of one
Bar.jar
library
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22. Architecture
low coupling high cohesion Bundle life cycle: INSTALLED, RESOLVED,
STARTING, ACTIVE,STOPPING, UNINSTALLED
Bundle = JAR + modified MANIFEST.MF
Name
Version
Dependency
etc.
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23. 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
# 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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24. OSGI summary
• 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
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25. Component containers: SCA
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26. SCA -Service Component Architecture
SCA - is a set of OASIS specifications which describe a model for building
applications and systems using a Service-Oriented Architecture.
Component:
 Implementation: Java, C++, BEPL …
 Communication configuration: SCDL .composite file
(Service Component Definition Language )
<composite name="ExampleComposite" ...>
<component name="Component1"> ... </component>
<component name="Component2"> ... </component>
<component name="Component3"> ... </component>
</composite>
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27. SCA structure
BEA, IBM, IONA, Oracle, SAP, Siebel Systems и Sybase
ZIP
service
Reference Domain-defined communication
property
Bindings Webservice or other communication
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28. SCA application structure
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29. SCA runtime
No specs how SCA should be implemented -
Several vendors Tuscany and Fabric3 , IBM …
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30. SCA vs OSGI vs JBI
JBI vs OSGI:
OSGI – Declarative dependency management.
Low level integration. Mobile devices
JBI – Standard messaging processing
High level component integration.
Container model for an Enterprise Service Bus
SCA
SCA – A model on how to assemble composite applications
Language-independent
Policy support
Separate implementation and binding.
Vendor lock-in
Distributed heterogeneous system.
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31. Requirements
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 SecureFTP; Oracle BPEL PM;
1.0.
WS-Atomic Transactions
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
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32. Projects and technologies
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 +
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33. Thank You!
Questions?
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