- Mule is an open source ESB that allows for integration and building APIs. It has over 1.5 million downloads and is used for cloud integration. - Mule provides both community and enterprise editions. The enterprise edition offers additional features like high availability, premium connectors, and support. - Mule can be used to connect applications and services together through its wide range of connectors and ability to process data through flows defined in XML or through its domain specific language.

1. Integration
&
DSL
#TDC2011

2. @porcelli
Alexandre Porcelli
Founder
Alexandre Porcelli
Writer
Alexandre Porcelli
Organizer
Alexandre Porcelli
Commiter / Parser Developer
Alexandre Porcelli
API Designer / Developer

3. integration

6. THE reference

7. cloud

8. problems...

9. silos

10. 3443

12. #facts
✓ #1 OPEN SOURCE ESB
✓ OVER 1.5 MILLION DOWNLOADS
✓ 2500+ PRODUCTION DEPLOYMENTS
✓ PERFORMANCE: 10000 TPS
✓ SCALABLE: 13000 DEPLOYED SERVERS
✓ 100+ CONNECTORS APPS & PROTOCOLS
✓ CLOUD CONNECTORS

13. enterprise...
Mule ESB Mule ESB
Community Enterprise
High-performance ESB  
Access to source code  
Community extensions  
Management Console 
High availability 
Premium Connectors 
Self-healing connections 
Technical Support 
Knowledge Base 
Service packs / hot patches 
QA 
Enterprise documentation 
Enterprise license 

14. customers...

15. mule studio!

16. tech spec...

17. cloud connectors...

18. POJO!
@Connector(namespacePrefix="my-push")
public class MyPushCloudConnector {
/**
* Hostname of My Push Notification Gateway
*/
@Property
private String host;
@Operation
public void send(String deviceToken, @Parameter(optional=true)
String alert, @Parameter(optional=true) String sound, @Parameter
(optional=true, defaultValue="-1") int badge, @Parameter
(optional=true) Map<String,String> fields) {
...
}
}

21. <flow name="Hello World">
<composite-source>
<!-- Incoming HTTP requests -->
<inbound-endpoint address="http://localhost:8888" transformer-refs="HttpRequestToNameString" exchange-pattern="request-response"
<not-filter>
<wildcard-filter pattern="/favicon.ico"/>
</not-filter>
</inbound-endpoint>
<!-- Incoming Servlet requests -->
<inbound-endpoint address="servlet://name" transformer-refs="HttpRequestToNameString" exchange-pattern="request-response">
<not-filter>
<wildcard-filter pattern="/favicon.ico"/>
</not-filter>
</inbound-endpoint>
<!-- Incoming VM requests -->
<vm:inbound-endpoint path="greeter" transformer-refs="StringToNameString" exchange-pattern="request-response"/>
</composite-source>
<component class="org.mule.example.hello.Greeter"/>
<choice>
<when expression="payload instanceof org.mule.example.hello.NameString" evaluator="groovy">
<vm:outbound-endpoint path="chitchatter" exchange-pattern="request-response"/>
</when>
<when expression="payload instanceof java.lang.Exception" evaluator="groovy">
<vm:outbound-endpoint path="userErrorHandler" exchange-pattern="request-response"/>
</when>
</choice>
<!-- Route unexpected errors to separate error handler -->
<default-exception-strategy>
<vm:outbound-endpoint path="systemErrorHandler" exchange-pattern="one-way"/>
</default-exception-strategy>
</flow>

22. xml?

24. so what?

26. MuleContex context = Mule.newMuleContext();
Flow myFlow = new Flow();
myFlow.setName("MyFlow");
InboundEndpoint myIn = new GenericInboundEndpoint();
myIn.setURL("file:///Users/porcelli/in");
OutboundEndpoint myOut = new GenericOutboundEndpoint();
myIn.setURL("file:///Users/porcelli/out");
myFlow.setInbound(myIn);
myFlow.addMessageProcessor(myOut);
context.addFlow(myFlow);
ok?
muleContext.start();

27. NO!

28. DSL!

29. goals...
➡ Expressive & Natural
➡ Easy to Use & Learn
➡ Hard to Misuse
➡ Extensible

30. Mule.newMuleContext(new AbstractModule() {
@Override
public void configure() {
flow("MyFlow")
.from("file:///Users/porcelli/in")
.send("file:///Users/porcelli/out");
}
}).start();

31. remember?
MuleContex context = Mule.newMuleContext();
Flow myFlow = new Flow();
myFlow.setName("MyFlow");
InboundEndpoint myIn = new GenericInboundEndpoint();
myIn.setURL("file:///Users/porcelli/in");
OutboundEndpoint myOut = new GenericOutboundEndpoint();
myIn.setURL("file:///Users/porcelli/out");
myFlow.setInbound(myIn);
myFlow.addMessageProcessor(myOut);
context.addFlow(myFlow);
muleContext.start();

32. feedback?

33. cloud...
final TwitterConnector twitterConnector = new TwitterConnector();
twitterConnector.setConsumerKey("key");
twitterConnector.setConsumerSecret("secret");
twitterConnector.setOathToken("token");
Mule.newMuleContext(new AbstractModule() {
@Override
public void configure() {
flow("MyFlow")
.from("file:///Users/porcelli/tweet")
.transformTo(String.class)
.process(twitterConnector.statusesUpdate(payload()));
}
}).start();

34. demo

36. questions?

37. Thanks!
alexandre.porcelli@gmail.com
github.com/porcelli
about.me/porcelli linkedin.com/in/alexandreporcelli
@porcelli
porcelli.com.br