The world has become a system of connected components. Whether you are going to have breakfast at your favourite restaurant, watch a movie or book a sports event, everything is connected to provide you the best service. Connecting or integrating different systems has been a challenge for the IT industry for the last decade and it will be the same for coming decades. WSO2 provides the world’s fastest open source integration solution – the WSO2 ESB – to connect heterogeneous systems with each other. This tutorial focuses on An in-depth knowledge of the high performance integration platform Its upcoming features Customer use cases to give you real life insights into the capabilities of the product It’s effect on your business.

1. WSO2 Integra-on Pla1orm
Deep Dive
Malaka Silva
Senior Technical Lead
WSO2
Isuru Udana
Associate Technical Lead
WSO2

2. Agenda
• Introduc-on to WSO2 Integra-on Pla1orm
• Fundamentals of WSO2 ESB
• Demonstra-on
• Q&A

3. Evolu-on of Integra-on
Point to Point Integra-on
● Custom code, data formats for
majority of integra-on ( data
extrac-on, business rule processing,
data loading)
● Costly over -me (maintenance,
complexity)
● Tight Coupling
● Scalability is an issue
● Less reusability

4. Evolu-on of Integra-on
• Rise of SOA and ESB
– Avoid point to point integra-on with an
ESB

5. Connected Business
• An internally and externally connected
business.
Customers
Poten-al
Customers/Partners
Employees
Partners
Internal
Systems
External
Systems
Image courtesy hUp://jdamico.net/wp---content/uploads/2010/04/collaborate---with---B2B---channel---
partners.jpg

6. Connected Business and Integra-on
• Integra-on is a key factor for having fric-onless
interac-ons, inside and outside the organiza-on.

7. WSO2 Integra-on Pla<orm

8. Integra-on and APIs - The Close Cousins

9. WSO2 Integra-on + API Management Pla<orm

10. WSO2 ESB
• 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

11. Key Features - Rou-ng

12. Key Features - Filtering

13. Key Features - Transforma-on

14. Key Features – Protocol Switching

15. Key Features – Load Balancing

16. Key Features – Quality of Service

17. Key Features - Service Orchestra-on
• Orchestra-ng/Combining mul-ple Services

18. Fundamentals of WSO2 ESB
• Understanding ESB message flow

19. Fundamentals of WSO2 ESB

20. Message Processing Units
- Sequences, mediators
Message Entry Points
- Proxy Services, APIs, Inbound
endpoints.
Message Exit Points
- Endpoints
Fundamentals of WSO2 ESB

21. Message Processing Units
Mediators

22. Mediators
• Transforma-on Mediators
• Filters, Switches, Iterate, Aggregate, Clone
• Property Mediator
• Script Mediators
• Custom Mediators

23. Some Mediators
Name Descrip-on
Log Mediator Logs full or part of the message, at various severity levels ( Trace, Debug, etc)
Sequence Mediator Invokes exis-ng sequence - Sequence name can be sta-c or dynamic
Send Mediator Sends a message out, using sta-c informa-on or endpoint defini-on.
Callout Mediator Performs a blocking external service invoca-on.
Switch Mediator Evaluates messages contents against regular expression and invokes the corresponding
mediator (switch-case-default)
Validate Mediator Validates message or parts of message against XML schema (schema can be local or in
registry)
Drop Mediator Stops processing of current message
Fault Mediator Transforms current message into custom Fault message

24. Sequences

25. Programming Model
Client Service
In Sequence
Out Sequence
Fault Seq.
1
2
3
6 5 4
!

26. Message Processing Units
- Sequences, mediators
Message Entry Points
- Proxy Services, APIs, Inbound
endpoints.
Message Exit Points
- Endpoints
Fundamentals of WSO2 ESB

27. Message Entry Points
Messages can be injected into sequences through the
following interfaces:
27
Service
o Proxy Services
o APIs
o Inbound Endpoints
o Tasks

28. Proxy Services
o Acts like a virtual service.
o Receives messages and mediates them before sending them to the endpoint
(usually an actual service)
28
Client Service
In Sequence
Out Sequence
Fault Seq.
1
2
3
6 5 4
!

29. Service
APIs (hUp services)
o APIs can accept REST messages which allow clients to provide addi-onal
informa-on on how to manage the message
o Unmanaged API (API-Manager for managed APIs)
29
API

30. Inbound Endpoints
• Crea-ng inbound messaging channels
dynamically.
– Listening Inbound – HTTP, HL7, TCP
– Polling Inbound – JMS, File/VFS
• Injects the inbound messages into an
ESB message flow.

31. Coordina-on
- In-order delivery with single consumer
Inbound Endpoints

32. Coordina-on
- Mul-ple Consumers
Inbound Endpoints

33. Service
Tasks
Allow configura-on of scheduled jobs to execute internal/external commands
o Inject a message into a proxy service, Main sequence or a named sequence
o Example:
o ESB allows scheduled tasks to go fetch data
33

34. Task Coordina-on
Tasks

35. Message Processing Units
- Sequences, mediators
Message Entry Points
- Proxy Services, APIs, Inbound
endpoints
Message Exit Points
- Endpoints
Fundamentals of WSO2 ESB

36. Endpoints
• Logical representa-on of one or more real backend
service, jms queue etc.
• Address, HTTP Endpoints – A logical endpoint for an
exis-ng BE service
• Load balancing / Failover – Group of endpoints for
exis-ng BE services

37. Connectors
• A connector is a ready made and convenient
tool to reach publicly available web API’s.
• ‘Cloud to Cloud’ and ‘Cloud to Enterprise’
Integra-on
• ESB Connector Store : hUps://store.wso2.com/

38. • Every connector is self-contained and
independent from ESB code
• Dynamically plug in to ESB
• Dynamic Tooling support with WSO2 Developer
Studio
• You can write, ‘your own connector’ and just
plug it in
Connectors

39. Message Store and Message Processor
• Asynchronous/One-way Messaging, JMS
• Store and forward
• Guaranteed Delivery and Rate matching
• JMS Message broker as the persistence store – WSO2 MB, Apache
Ac-ve MQ etc.

40. Enterprise Integra-on PaUerns
hUps://docs.wso2.com/display/Integra-onPaUerns/
Enterprise+Integra-on+PaUerns+with+WSO2+ESB

41. Tooling Support for WSO2 ESB

42. WSO2 Integra-on Pla<orm

43. WSO2 Data Services Server
Painpoints:
● Different data stores
● Cumbersome data access/
transforma-on logic
● Business logic vs Data access
logic
● Repe--ve Code
DSS:
● Well defined interfaces (standard based)
● Encapsulated data logic
● Configura-on driven
● Loose Coupling between App & Data
stores
● Scale as a separate architectural layer.

44. WSO2 Data Services Server : Features
• Mul-ple Data Sources
• Nested Queries
• No-fica-ons
• Batch Processing
• Distributed Transac-ons

45. Use Case – Phone Retail
• A phone retail business wants to expose its phone search and
buying func-onali-es to its mobile applica-on users.
• Mobile phone user searches for all the available phones in a
store with a specific brand.
• Once the user select the phone with matching features, he/she
purchases by providing required informa-on
• The customers who purchase phones will be added to
Salesforce
• WSO2 DAS monitors and analyzes the stats on users and
phone brands

46. Solu-on Architecture

47. Searching for a phone

48. Purchasing a phone

49. Phone Search
• Conversion from JSON to XML
• Message transforma-on
• Extrac-ng values from incoming message
• Invoking endpoint
• Sending response with XML to JSON
conversion

50. Phone Search

51. Phone Search

52. Phone Purchase
• Extract informa-on
• Update store
• Update Salesforce via Salesforce connector
• Stat publishing

53. Phone Purchase
• Extract informa-on

54. Phone Purchase
• Update Store

55. Phone Purchase
• Salesforce Connector

56. Phone Purchase
• Publishing Sta-s-cs

57. DAS Gadgets

58. WSO2 Integra-on Pla<orm

59. WSO2 Business Process Server
• BPMN 2.0
• WS-BPEL 2.0
• WS-HumanTask 1.1
• BPEL4People

60. Human Task Support

61. WSO2 Integra-on Pla<orm

62. WSO2 Message Broker
Unique distributable, fault tolerant and scalable enterprise
message broker to connect, persist and reliably distribute
data, event informa-on generated from mul-ple systems,
applica-ons and IoT devices.

63. WSO2 MB - Advantages
• Integrate easily with exis-ng IT Infrastructure .
• Select storage based on messaging demands .
• Low maintenance through minimum deployment
effort.
• Highly interoperable with AMQP clients.
• Effortlessly handle large message transfer.
• Seamless feature integra-on with WSO2 ESB.

64. Supported Protocols & Specifica-ons
• JMS (Java Message Service)
• A Standard Java API for programmers to handle
messaging by interac-ng with a message broker
• AMQP (Advanced Message Queuing Protocol)
• Open Standard for passing business messages
between applica-ons or organiza-ons
• MQTT (Message Queuing Telemetry Transport)

65. WSO2 MB - Features
• Point to Point (Queues)
- A message is delivered only once to a single
consumer
• Publish/Subscribe (Topics)
- Broadcast a message to all the subscribers

66. WSO2 MB - Features
• Distributed Queues
- Provides strict or best effort support for in-order delivery.

67. WSO2 MB - Features
• Durable Subscrip-on
- Same topic as subscrip-on.
Subscriber offline > Message gets queued
Subscriber back online > Messages gerng delivered

68. WSO2 MB - Features
• Share Durable Subscrip-on
-Purpose of load balancing

69. WSO2 ESB 5.0
What’s Next ?
• Media-on Debugger
• BeUer Sta-s-cs
• Message Tracer
• Websockets
• Data Mapper

70. ESB 5.0 - Media-on Debugger
What’s Next ?

71. ESB 5.0 - Message Tracer
What’s Next ?

72. ESB 5.0 - Media-on Sta-s-cs
What’s Next ?

73. WSO2 Process Center
What’s Next ?
Process
par-cipant
Create / Improve / Standardize
Search /
Browse /
Follow
Develop executable
processes
Executable
process is
associated
with Process
Center

74. WSO2 Gateway
What’s Next ?
• Ultra high performance and low latency HTTP/S
messaging
• Supports thousands of concurrent connec-ons/clients
• Fastest open source HTTP messaging gateway
• Lightweight Message Media-on
• Header-based rou-ng
• Fully configura-on driven
• Lightweight and stateless service orchestra-on

75. Ques-ons ?

76. Thank You