1. Delivering the Promise of SOA - Enterprise Integration
Made Easy WSO2 ESB
Dushan Abeyruwan
Senior Software Engineer
WSO2 ESB
February 2012

2. Overview
 Introduction
 Demo 1
 EIP Service chaninig /Split/Aggregate (Agent request service)
 Demo 2
 EIP Store and Process (Agent registration process)

3. WSO2
• Founded in 2005 by acknowledged leaders in XML, Web
Services Technologies & Standards and Open Source
• Producing entire middleware platform 100% open source under
Apache license
• Business model is to sell comprehensive support & maintenance
for our products
• Venture funded by Intel Capital
• Global corporation with offices in USA, UK & Sri Lanka
• 100+ employees and growing

4. SOA & ESB
• SOA
 The underlying structure supporting communication
between services
• ESB
 ESB is considered as the backbone of a robust SOA
 It integrates all the internal systems as well as external
systems of the enterprise

5. (EAI)Enterprise Application Integration
Java .NET
SOAP
J2EE
SAP
Weblogic

6. EAI Enterprise Application Integration

7. Introducing WSO2 ESB...
• Based on WSO2 Carbon (Modular Middleware)
and Apache Synapse
• Designed to be asynchronous
o Based on Synapse core with non blocking I/O
• Open source with commercial support
o Apache Software License v2.0
• Rich collection of built-in features supporting
any integration scenario or EIP
• Customizable by adding/removing features

8. Heterogeneous service integration
 Comprehensive WS Specs and SOAP support
 HTTP/SwithREST/POX
 Adapters for various IndustryStandards
 SAP
 Financial Informatione Xchange(FIX)
 Health Level7(HL7)
 VFS(File/FTP/SFTP)
 JMS
 SMTP
 SMS

9. WSO2 ESB Components–In a nutshell..
 Messaging and service Mediation
 Managing and transforming messages
 Mediating messages coming in to the specific proxy hosted on ESB
 Mediators
 Simplest function of component
 Performs predefined function given on message
 Sequences
 Sequential arrangement of mediators
 Proxy Services
 Hosting proxy services in ESB
 Protocol switching and QoS
 End Points
 A logical representation of an actual end points, or else collection of
end points wrapped within some logic

10. EIP Patterns with ESB

11. EIP Patterns with ESB

12. Service Chaining
• Invoke multiple backend services in a chain fashion for a single
client request
• Response of first backend invocation can be used as request of
second backend invocation.. And so on…
• Conditional chaining based on responses of backed services
Request - Response Service 1
Request - Response Service 2
Request - Response Service 3

13. Agent Requesting Life Insurance Policy Detail scenario
Agent ID
•Check Agent validity
Valid/Invalid
Agent Validate
•Requesting Clients
Agent Request info per Agent Agent ID
•Perform transfer
Response Agent own customer info
Life Insurance
Customer service
•Requesting policies
per customer
Client ID
•Perform transfer
•Policies for customer
Customer Policies
Service

14. Message Splitting and Aggregation
• Request consists of multiple elements which can process
individually
• Collect and store individual messages until a complete set of
related messages has been received.
• Create a single message distilled from the individual messages

15. Split
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Header/>
<soapenv:Body>
<s:symbols xmlns:s="http://demo.wso2.org">
<s:symbol>ABC</s:symbol>
<s:symbol>PQR</s:symbol>
<s:symbol>XYZ</s:symbol>
</s:symbols>
</soapenv:Body>
</soapenv:Envelope>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<s:symbol xmlns:s="http://demo.wso2.org">ABC</s:symbol>
</soapenv:Body>
</soapenv:Envelope>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<s:symbol xmlns:s="http://demo.wso2.org">PQR</s:symbol>
</soapenv:Body>
</soapenv:Envelope>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<s:symbol xmlns:s="http://demo.wso2.org">XYZ</s:symbol>
</soapenv:Body>
</soapenv:Envelope>

16. Aggregate
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<s:symbol xmlns:s="http://demo.wso2.org">ABC</s:symbol>
</soapenv:Body>
</soapenv:Envelope>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<s:symbol xmlns:s="http://demo.wso2.org">PQR</s:symbol>
</soapenv:Body>
</soapenv:Envelope>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<s:symbol xmlns:s="http://demo.wso2.org">XYZ</s:symbol>
</soapenv:Body>
</soapenv:Envelope>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Header/>
<soapenv:Body>
<s:symbols xmlns:s="http://demo.wso2.org">
<s:symbol>ABC</s:symbol>
<s:symbol>PQR</s:symbol>
<s:symbol>XYZ</s:symbol>
</s:symbols>
</soapenv:Body>
</soapenv:Envelope>

18. Dead Letter Channel
• Push failed message into a message store if sending failed
• Automatic/Manual retry using Forwarding message processor
• Resembles to “dead letter channel” EIP

19. Agent Registration process
Request Agent Register
Invoke UeserRegister Proxy
MessageStroe
MessageStroe Processor
User Register Service

20. Q&A

21. Selected Customers

22. WSO2 engagement model
• QuickStart
• Development Support
• Development Services
• Production Support
• Turnkey Solutions
• WSO2 Mobile Services Solution
• WSO2 FIX Gateway Solution
• WSO2 SAP Gateway Solution

23. Thank You.