Mule ESB is an integration platform designed to connect applications, data sources, and APIs, supporting both cloud and on-premises environments. It features an event-based architecture, API-centered design, and a visual design tool called Anypoint Studio, facilitating efficient development and integration processes. Mule is open source, with an enterprise edition offering additional support and features, and competes with various commercial and open-source ESB products.

1. Introduction to Mule ESB
03/04/15

2. What is Mule
2Confidential and Proprietary

3. Mule – an Integration Platform
3Confidential and Proprietary
• Integration platform for connecting
any application, data source or API,
whether in the cloud or on-premises
• Why ‘Mule’? Avoid the ‘donkey work’
of the infrastructure work
before you can implement
any logic
-Ross Mason, MuleSoft founder

4. Introduction to Mule
4Confidential and Proprietary
• MuleSoft’s Architecture Themes
1. Mule ESB – Enterprise Service Bus
2. Event Based Model
3. API Centered Design
4. Anypoint Studio – Visual Design
• Languages Used
• Mule as an Open Source project
• Mule Flows

5. 1. Mule ESB – Enterprise Service Bus
5Confidential and Proprietary
Designed around the Enterprise Service Bus
Communication & Interaction between services
via a common Message Bus

6. 1. Mule ESB – Enterprise Service Bus
6Confidential and Proprietary
• Advantages:
–SOA Architecture: A services-based
abstraction layer to make enterprise
business applications accessible
–Avoiding a Point-to-Point integration
architecture
–Flexibility in application lifecycle
management

7. 1. Mule ESB – Enterprise Service Bus
7Confidential and Proprietary
• Competitors:
– Commercial ESB Products: IBM Websphere
ESB, Oracle ESB etc.
– Open Source ESB: Jboss ESB, Apache
ServiceMix (Camel), WSO2

8. 2. Event Based Model
8Confidential and Proprietary
• Put Salmon in the Oven
• Wait for 20 minutes
• Remove Salmon from
the Oven
• Put water in the pot
• Wait for water to boil
• Put in Pasta
• Wait until pasta is
al-dente
OR
Put a timer and do next task in the meantime

9. 2. Event Based Model
9Confidential and Proprietary
Add Threads (more cooks) Respond to events (kitchen timer)
JAVA JavaScript, node.js
Blocking (synchronous) Non-blocking (asynchronous)
Vs.

10. 2. Event-based: Concurrent Connections & Memory Usage
10Confidential and Proprietary
Doesn’t need to spawn new processes or threads for each request

11. 2. Event Based Model
• Advantages:
–Shorten the delta between actions
and feedback
–Architecture can handle larger
throughput & do it more efficiently
11Confidential and Proprietary

12. 3. API Centered Design
12Confidential and Proprietary

13. 3. API Centered Design
13Confidential and Proprietary
The new application components –
the API is part of the application’s design

14. 3. API Centered Design
Point to Point Architecture vs. APIs
14Confidential and Proprietary

15. 3. API Centered Design
15Confidential and Proprietary
• API Portal (APIhub) is where API developers
and application developers interact to design,
test, and discover APIs
• Design APIs with the API Designer
(RESTful API Modeling Language
to build the API interface)
Social Media for APIs

16. 3. API Centered Design
16Confidential and Proprietary
• Advantages:
• APIs provide a cleaner way to access
the application data
• APIKit toolkit to develop,
document, and test REST API
implementations
• Automatic scaffolding to build
the back-end based on the RAML file

17. 4. Anypoint Studio – Visual Design
Code can be long and unreadable…
17Confidential and Proprietary

18. 4. Anypoint Studio – Visual Design
When all we really wanted to say was:
18Confidential and Proprietary
Computer, write a software that will disrupt the
market and make me lots of money

19. 4. Anypoint Studio – Visual Design
Solution: IDEs that provide visual software design
19Confidential and Proprietary
iOs IDE
Scratch

20. 4. Anypoint Studio – Visual Design
Mule Anypoint Studio lets you drag components & edit
20Confidential and Proprietary

21. 4. Anypoint Studio – Visual Design
• Advantages:
–Can get a high-level understanding
of the code by glancing at the
flows
–Shorter time to develop – no need
to re-write ‘plumbing’ code
21Confidential and Proprietary

22. Languages Used
• Mule supports both Java, but also
supports scripting languages such
as Groovy,
Javascript, Python, Ruby etc.
• MEL – Mule regular expression
22Confidential and Proprietary

23. Mule as an Open Source project
23Confidential and Proprietary
• Mule ESB Community is an open source
project and is licensed under the
Common Public Attribution License
• The Enterprise edition provides
additional benefits:
– Customer support
– Enterprise connectors
– Templates (out-of-the-box solutions)
– Operational Dashboard
– Data Mapper
– Etc.

24. Hello World in Node.js vs Mule
var http = require('http');
var server =
http.createServer(function
(request, response) {
response.writeHead(200,
{"Content-Type": "text/plain"});
response.end("Hello Worldn");
});
// Listen on port 8000, IP defaults
to 127.0.0.1
server.listen(8000);
24Confidential and Proprietary
Event
Listener
Chained
Callbacks

25. Node.js vs Mule
Node.js
Sencha
Connect
module
‘middlewares’
with next()
25Confidential and Proprietary
Mule

26. Mule Flows
26Confidential and Proprietary
• Inbound Endpoint (diff. transports and protocols)
• Transformers
• Component
• Routers
• Outbound Endpoint