1. Kasun
Indrasiri
So#ware
Architect,
WSO2
ESB
Product
Lead,
WSO2
Inc.
Exploring
the
WSO2
ESB
4.7
Ravi
Undupi?ya
So#ware
Engineer
Integra<on
Technology
Team
WSO2
Inc.

2. About WSO2
• Providing the only complete open source componentized cloud platform
– Dedicated to removing all the stumbling blocks to enterprise agility
– Enabling you to focus on business logic and business value
• Recognized by leading analyst firms as visionaries and leaders
– Gartner cites WSO2 as visionaries in all 3 categories of application
infrastructure
– Forrester places WSO2 in top 2 for API Management
• Global corporation with offices in USA, UK & Sri Lanka
– 200+ employees and growing
• Business model of selling comprehensive support & maintenance for our products

3. 150+ globally positioned support customers

4. Agenda
• Background
on
SOA
and
Enterprise
Service
Bus
• Capabili<es
of
the
WSO2
ESB
• Func<onal
components
of
WSO2
ESB
• What’s
new
in
WSO2
ESB
4.7.0
• Pizza
Shop
Demo

5. Background
• Service
Oriented
Architecture
(SOA)
– A
style
of
so#ware
architecture
that
is
modular,
distributed
and
loosely
coupled.
– Componen<za<on
–
The
main
driver
of
SOA
– Business
Func<onali<es
are
implemented
in
different
Business
Components
– Business
Components
provide
their
func<onality
to
its
consumers
as
a
‘Service’
with
the
well-­‐defined
service
interfaces.

6. Background
• Enterprise
Service
Bus
(ESB)
– An
ESB
is
a
middleware
solu<on
that
enables
interoperability
among
heterogeneous
environments
using
a
service-­‐oriented
model.
– Stateless
and
Seamless
Integra<on
– Standard
Protocols
–
SOAP,
REST,
JSON
etc.
– Transports
–
HTTP/S,
JMS,
TCP,
VFS
etc.
Source : http://graegert.com/programming/no-soa-criticism-somewhere

7. WSO2
ESB
is…
• A
lightweight,
high
performance
ESB
• Feature
rich
and
standards
compliant
– SOAP
and
WS-­‐*
standards
– REST
support
– Domain
specific
protocol
support
(eg:
FIX,
HL7)
• User
friendly
and
highly
extensible
• 100%
free
and
open
source
with
commercial
support

8. Under
the
Hood:
Apache
Synapse
• A
lightweight,
open
source
ESB
implementa<on
from
the
ASF
:
hdp://synapse.apache.org
• Makes
up
the
media<on
engine
of
WSO2
ESB
• Mul<threaded
and
asynchronous
message
processing
core
• Based
on
a
number
of
well
known
open
source
projects
(eg:
Axis2,
Hdp
Core)

9. ESB
Func?onal
Components

10. Mediators

11. Sequences
• A
chain
of
mediators
• Messages are sent through all the
mediators in the sequence, in the order
they appear

12. Endpoints
• A
logical
en<ty
to
which
messages
can
be
sent
from
the
ESB
– A
service
endpoint
reference
(EPR)
– A
JMS
queue
– A
FIX
session
• Various
opera<onal
and
QoS
constraints
can
be
engaged
on
an
endpoint
– SOAP
version
– WS-­‐Security

13. Proxy
Services

14. Key
Features:
Rou?ng

15. Key
Features:
Filtering

16. Key
Features:
Transforma?on

17. Key
Features:
Protocol
Switching

18. Key
Features:
Load
Balancing

19. Key
Features:
QoS

20. REST API
• Exposing
RESTful
APIs
• An
easy
way
to
expose
exis<ng
SOAP
services
over
REST
• REST
à
SOAP
bridge
• REST
à
REST
Proxy

21. Supported
Protocols/Standards
• Transports
– HTTP/S,
POP/IMAP,
SMTP,
JMS,
AMQP,
FIX,
Raw
TCP,
Raw
UDP,
SAP,
File
transports
(FTP/SFTP/
CIFS)
• Content
interchange
formats
– SOAP
1.1,
SOAP
1.2,
POX,
HTML,
Plain
text,
binary,
JSON,
Hessian
• WS-­‐*
standards
– WS-­‐Addressing,
WS-­‐Security,
WS-­‐Reliable
Messaging,
WS-­‐Policy,
WS-­‐Discovery,
MTOM/SwA

22.
New
in
WSO2
ESB
4.7.0
• RESTful
integra<on
support
improvements
– HTTP
Endpoint
– JSON
Payload
Factory
Mediator
• Improved
Message
Store/Processor
• SSL
Tunneling
• OCSP
/
CRL
for
HTTP
Transport
• Major
round
of
bug
fixing.

23. RESTful
Integra?on
Support
• HTTP
Endpoint
– URI
Templates
– Define
HTTP
Methods
– Dynamic
evalua<on
of
endpoint
URI

24. HTTP Endpoint

25. RESTful
Integra?on
Support
• Payload
Factory
JSON
Support
– JSON
to
XML
– JSON
to
JSON
– Using
JSON
Path

26. Payload Factory JSON Support

27. Pizza
Shop
Demo:
Scenario
• Exis<ng
backend
provides
Pizza
Ordering
and
Payment
System.
• Backend
is
RESTful
using
JSON
for
use
with
Mobile
Clients.
• Some
clients
send
different
message
formats.
• SOAP
clients
used
internally.
Source: http://www.kirkmanvippizza.com

28. Pizza Shop Demo

29. Pizza Shop Demo – API
• User
API
• GET
/pizza/?type={TYPE}&?q={TERM}
• POST
/order/add
• DELETE
/order/delete/{id}
• POST
/order/purchase/{id}
• GET
/order/status/{id}
• PUT
/order/update/{id}
• Admin
API
• POST
/pizza/add

30. Pizza Shop Demo
SOAP
Client
JAX-RS
RESTful Backend
REST
Client
WSO2 ESB
Proxy
Service
API
JSON
JSONJSON
XML

31. Message Store and Processors Improvements
• Store and Forward Pattern
• Improved WSO2 Message Broker Integration
• Message Throughput Improvements

32. SSL Tunneling Improvements
• SSL Tunneling
• Via Proxy Server
Client
Proxy
Server
Backend
SSL
SSL
SSL

33. OCSP / CRL
• Online Certificate Status Protocol / Certificate
Revocation List
• Between WSO2 ESB and Backend.
• Queries root certificate authorities
• Caching implementation
• Certificate Status: good, revoked, unknown
• Terminates request if revoked/unknown

34. Engage with WSO2
• Helping you get the most out of your deployments
• From project evaluation and inception to development
and going into production, WSO2 is your partner in
ensuring 100% project success