Rob Blaauboer and Ishan Jayawardena present an overview of the WSO2 Enterprise Service Bus (ESB), outlining its role in integrating diverse systems using a service-oriented architecture. The document discusses the evolution from monolithic and point-to-point systems to the use of ESBs for managing communication and data flow in enterprise environments. It also highlights the potential applications of the ESB in IoT scenarios and provides technical guidance for implementing the WSO2 ESB.

1. Rob
Blaauboer,
Senior
Consultant,
Yenlo
ESB
meets
IoT,
a
primer
on
the
Enterprise
Service
Bus
March
11th
2015
Ishan
Jayawardena],
WSO2

2. About
the
presenters
2
Rob
Blaauboer
Senior
Consultant,
Yenlo
Rob
is
a
Senior
Business
Consultant
and
Solu?on
Architect
with
more
than
twenty
years
experience.
In
addi?on
to
his
work
he
is
an
ac?ve
blogger
working
on
a
number
of
ar?cles
on
the
'Internet
of
Things'
and
a
WSO2
'GeKng
Started
with
...'
series
in
which
he
talks
about
WSO2
components
and
their
purpose
especially
aimed
at
non
technical
readers.
Ishan
Jayawardena
Senior
So>ware
Engineer,
WSO2
Ishan
is
a
Senior
SoLware
Engineer
in
the
integra?on
technologies
team
where
he
mainly
focuses
on
the
WSO2
Enterprise
Service
Bus.
In
addi?on
to
his
product
development
efforts
he
has
also
provided
technology
consul?ng
on
customer
engagements,
including
customer
QuickStart
programs
focused
on
Enterprise
Applica?on
Integra?on
projects.

3. 3
About
Yenlo
๏ Global
enterprise,
founded
in
2007
with
an
internaFonal
focus
on
delivering
integraFon
soluFons
based
on
Java
open
source
๏ #1
in
the
field
of
Integra?on
Solu?ons
๏ #1
in
Managed
Services
for
middleware
environments
๏ #1
Global
Strategic
Alliance
partner
of
WSO2
๏ WSO2
Product
Support
๏ WSO2
Development
๏ WSO2
QuickStarts
๏ WSO2
Training
&
Cer?fica?ons
๏ WSO2
24/7
Managed
Services
๏ WSO2
Events

4. What
Yenlo
delivers
4
Enterprise
Architecture
SoLware
Development
Managed
Services
WSO2
Product
Support
WSO2
Development
Support
WSO2
QuickStart
WSO2
Training
&
Cer?fica?ons
WSO2
Managed
Services
WSO2
Events

5. Agenda
5
An
introducFon
to
the
WSO2
ESB
๏ The
need
to
integrate
or
connect
systems
๏ Key
funcFons
of
the
ESB
๏ Use
case
Internet
of
Things
doorlock
and
smart
thermostat

6. Hop
on
the
Enterprise
Service
Bus
6
Perhaps
you
have
heard
one
of
your
colleagues
men?oning
‘what
we
need
is
an
ESB
to
tackle
our
integra?on
issues’
or
read
in
a
magazine
about
the
wonders
of
the
Enterprise
Service
Bus.
But
what
is
it
exactly?

7. Service
Oriented
Architecture
6
o What is SOA?
o Architectural approach based on
discrete pieces of software
providing functionality as services
to other applications. Services are
well defined and reusable.
o ESB in the Context of SOA?
o SOA: Design/develop smaller
components as services for
reusability
o ESB: Communication and
interaction between these
services

8. The
WSO2
ESB
Manager
works
together
with
other
components
7

9. The
ESB
is
like
a
traffic
cop
6
“The Enterprise Service
Bus acts like a traffic cop,
directing communication
between systems but also
telling you to walk faster”

10. ESB
in
the
broader
picture
6
An
ESB
is
foremost
an
architectural
model.
Core
of
the
model
is
the
fact
that
the
ESB
acts
as
a
central
place
for
message
exchange.
An
ESB
is
a
cri?cal
component
of
a
Service
Oriented
Architecture
(an
architectural
model
where
components
offer
services
via
messages
to
other
components).
The
fact
that
it
is
called
enterprise
service
bus
gives
an
indica?on
where
the
ESB
can
play
an
important
role:
the
Enterprise.
Especially
in
these
environments,
where
a
large
number
of
systems
and
applica?ons
are
in
use,
ESB
can
help
organiza?ons
to
enable
new
products
and
services
built
on
these
disparate
systems.
But
lets
not
forget
IoT
and
Cloud!
Image
pnwra
CC
Flickr
hcps://www.flickr.com/photos/pnwra/

11. Monoliths
6
Originally
computer
systems
were
designed
as
so
called
monoliths.
The
system
performed
one
or
a
couple
of
tasks
and
kept
its
data
precy
much
to
itself.
With
the
advent
of
client
server
architecture
and
the
three-­‐?er
model:
presenta?on
–
logic
–
data,
monolithic
systems
became
less
popular.
The
separa?on
of
these
?ers
or
layers
was
the
beginning
of
the
Service
Oriented
Architecture
movement.
Image
Brian
Glanz
CC
Flickr
hcps://www.flickr.com/photos/brianglanz/

12. Point
to
point
connecFons
6
At
first,
connec?ons
between
systems
were
so-­‐called
point-­‐to-­‐point
communica?on.
This
means
that
a
direct
connec?on
was
made
between
the
two
communica?ng
systems.
When
the
number
of
systems
that
needed
to
be
connected
or
exchange
informa?on
grew,
the
number
of
connec?ons
that
need
to
be
maintained
grew
more
rapidly.
Because
if
you
want
to
have
five
systems
connected
to
each
other
you
need
to
define
25
connec?ons
(5^2).
This
becomes
quickly
unmanageable;
imagine
an
enterprise
with
100
separate
systems.
A
B
C
D
E
1
2
3
4
5

13. Hub
and
Spoke
EAI
architecture
6
A
becer
solu?on
was
needed
and
that
led
to
the
enterprise
applica?on
integra?on
(EAI)
products.
An
advantage
over
a
point-­‐to-­‐point
connec?on
but
the
hub
and
spoke
architecture
has
now
proven
to
become
boclenecks
in
the
system.
The
enterprise
service
bus
is
the
next
logical
step
in
connec?ng
disparate
IT
systems
and
programs.

14. Not
only
for
legacy
systems!
6
We
already
talked
about
the
applica?on
infrastructure
that
you
will
find
in
an
enterprise.
Given
the
fact
that
most
enterprises
have
been
using
IT
systems
for
the
becer
part
of
40
years
it’s
not
uncommon
to
find
systems
wricen
in
almost
any
imaginable
language
(from
PL/1
to
Cobol
to
PowerDesigner)
running
on
in
some
cases
obscure
hardware
and
opera?ng
systems.
New
devices
are
also
added,
how
are
we
going
to
connect
those?
000010
IDENTIFICATION
DIVISION.
000020
PROGRAM-­‐ID.
HELLOWORLD.
000030
DATE-­‐WRITTEN.
10/08/04
00:04.
000040
AUTHOR.
UNKNOWN
AUTHOR.
000050
000100
ENVIRONMENT
DIVISION.
000200
CONFIGURATION
SECTION.
000210
SOURCE-­‐COMPUTER.
MAINFRAME.
000220
OBJECT-­‐COMPUTER.
MAINFRAME.
000230
000300
DATA
DIVISION.
000310
WORKING-­‐STORAGE
SECTION.
000320
01
TEKST
PIC
X(12)
000330
VALUE
"HELLO,
WORLD".
000410
000500
PROCEDURE
DIVISION.
000600
MAIN-­‐LOGIC
SECTION.
000700
MAIN-­‐LOGIC-­‐BEGIN.
000710
DISPLAY
TEKST.
000600
MAIN-­‐LOGIC-­‐END.
000700
STOP
RUN.

15. Working with WSO2 ESB
High-level Message Flow (Programming Model)
Client Service
In Sequence
Out Sequence
Fault Seq.
1 2 3
6 5 4
!

16. Building Blocks
Client Service
Endpoints
Mediators
Sequences
Transports

17. Building Blocks
o Sequences
o Define logic for handling incoming (request) and outgoing
(response) messages
o Sequences list mediators in order of execution
o Mediators
o Take action on the message
o Filter, Transform, Drop, Send, Property, Payload Factory
o Endpoints
o Define external destination for a message, usually a service
o Transports
o Carry messages in a specific format

18. ESB
and
Eclipse
(DEMO)
6

19. Message
Flow
in
the
ESB
6

20. Transports
and
pipes
6

21. Message
mediaFon
6

22. Transport
and
pipes
6

23. Tasks
and
events
6
Apart
from
this
you
can
also
use
tasks
and
events
with
the
ESB.
A
task
in
WSO2
ESB
allows
you
to
run
a
specific
piece
of
code
by
inser?ng
it
automa?cally
into
the
?meline.
Events
are
no?fica?ons
published
to
any
system
that
is
interested
in
this
event.
Even
the
ESB
itself
can
listen
to
events
and
take
ac?on
when
they
arise.
An
integra?on
pacern
facilita?ng
this
is
the
publish-­‐subscribe
pacern.

24. Endless
possibiliFes
6

25. Scalable
6
In
order
to
have
a
high
performance
and
high
availability
solu?on
the
ESB
supports
thousands
of
concurrent
nonblocking
HTTP(s)
connec?ons
per
server
that
will
allow
even
the
most
demanding
organiza?ons
to
u?lize
the
ESB.
One
of
the
examples
of
high
load
implementa?ons
is
eBay
that
has
implemented
WSO2
ESB
and
has
over
1
billion
transac?ons
per
day.
Of
course
the
ESB
can
also
support
organiza?ons
that
have
lower
demands
or
requirements.

26. Try
the
ESB
yourself!
Trying
the
API
manager
is
quite
simple.
What
you
need
to
do
to
try
it
on
your
own
PC
is:
• Download
the
WSO2
ESB
from
the
WSO2
website
• Unzip
the
ESB
• If
you
don’t
have
JDK
installed,
download
it
and
install
• Set
the
JAVA_HOME
parameter
• Go
to
the
BIN
directory
and
start
the
WSO2Server
(bat
or
sh)
file
• Access
the
consolehcps://localhost:9943/carbon
29

27. Try
the
ESB
yourself!

28. On
the
roadmap
for
ESB
ESB
4.9.0
The
core
founda?on
for
a
comprehensive
Integra?on
plazorm
as
a
Service
(iPaaS)
» Connectors,
» Connector
Store,
» mul?-­‐tenanted
inbound
messaging;
» integra?on
templates
Carbon
Version:
4.3.0
28
Flickr
CC
Jon
Rawlinson
hcps://www.flickr.com/photos/london/

29. Internet
of
Things
6

30. On
the
top
of
Gartner’s
Hype
Cycle

31. Introducing
Toon

32. Introducing
Okidokeys

33. ‚

Toon®
Monitor
locking
the
frontdoor
lock.
If
it
is
closed
with
a
key
or
from
the
app
we
will
log
in
to
the
smart
thermostat
and
see
what
program
is
chosen.
If
the
thermostat
is
locked
to
a
specific
program
we
leave
it
as
is,
if
not
we
set
the
program
to
‘Away’
turning
it
off.

34. What
would
we
like
to
achieve?
Login
Okidokey
Call
lock
status
API
every
5
minutes
Login
Toon
(oAuth)
Door
closed?
No
Yes
Get
Thermostat
Status
Locked
on
prog
ram?
Stop
No
Yes
Call
API
Set
to
Away
Status
Stop

35. Discussion
IoT
and
ESB

36. German
example

37. QuesFons
&
Answers
30

38. 31
hcp://www.slideshare.net/YenloBV
Download
the
webinar
presentaFon
on
slideshare:

39. Contact
us
!