Rob  Blaauboer,  Senior  Consultant,  Yenlo  

ESB  meets  IoT,  a  primer  on  the  Enterprise  Service  Bus  

March  11th  2015  

Ishan  Jayawardena],  WSO2  

About  the  presenters    

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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.  

 

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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  

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  

Agenda  

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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    

Hop  on  the  Enterprise  Service  Bus    

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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?  

Service  Oriented  Architecture  

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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

The  WSO2  ESB  Manager  works  together  with  other  components  

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The  ESB  is  like  a  traffic  cop  

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

ESB  in  the  broader  picture  

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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/  

Monoliths  

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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/  

Point  to  point  connecFons  

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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  

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2  

3  

4  

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Hub  and  Spoke  EAI  architecture  

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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.  

Not  only  for  legacy  systems!  

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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.  

Working with WSO2 ESB

High-level Message Flow (Programming Model)

   

Client Service

In Sequence

Out Sequence

Fault Seq.

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6 5 4

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Building Blocks

   

Client Service

Endpoints

Mediators

Sequences

Transports

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

   

ESB  and  Eclipse  (DEMO)  

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Message  Flow  in  the  ESB  

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Transports  and  pipes  

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Message  mediaFon  

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Transport  and  pipes  

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Tasks  and  events  

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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.    

Endless  possibiliFes  

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Scalable  

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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.  

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  

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Try  the  ESB  yourself!  

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  

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Flickr  CC  Jon  Rawlinson  hcps://www.flickr.com/photos/london/  

Internet  of  Things  

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On  the  top  of  Gartner’s  Hype  Cycle  

Introducing  Toon  

Introducing  Okidokeys  

�  

�  

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.  

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  program?  

Stop  

No  

Yes  

Call  API    Set  to  Away  

Status  

Stop  

Discussion  IoT  and  ESB  

German  example  

QuesFons  &  Answers  

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