Presented to Colorado Springs Open Source Users Group on April 28, 2008 by William Henry.

1. Service Oriented Integration
With Apache ServiceMix
William G Henry william_henry@mac.com
Presentation By Bruce Snyder bsnyder@apache.org

2. Agenda
 Enterprise Service Bus
 Java Business Integration
 Apache ServiceMix ESB
 Apache Camel (intro)
2

3. What is
an
ESB?
3

4. What is an ESB?
quot;An Enterprise Service Bus (ESB) is a new architecture that exploits Web
services, messaging Service Bus (ESB) is a and transformation. ESBs
quot;An Enterprise middleware, intelligent routing, new architecture that
act as a lightweight, ubiquitous integration backbone through which software
exploits Web services, messaging middleware, intelligent
services and application components flow.” (Gartner)
routing, and transformation. ESBs act as a lightweight,
ubiquitous integration backbone through which software
services and application components flow.” (Gartner)
4

5. What is an ESB?
An ESB acts as a shared messaging layer for connecting applications and other
services throughout ana sharedcomputing infrastructure. It supplements its
An ESB acts as enterprise messaging layer for connecting
core asynchronous messaging backbone with intelligent transformation and
applications and other services throughout an enterprise
routing to ensure messages are passed reliably. Services participate in the ESB
using either web services messaging supplements its core
computing infrastructure. It standards or JMS (LooselyCoupled.com)
asynchronous messaging backbone with intelligent
transformation and routing to ensure messages are passed
reliably. Services participate in the ESB using either web
services messaging standards or JMS (LooselyCoupled.com)
5

6. What is an ESB?
An ESB is an open standards, message-based, distributed, integration solution
An ESB is an open standards, message-based, distributed,
that provides routing, invocation, and mediation services to facilitate the
interactions of disparate distributed information technology resources
integration solution that provides routing, invocation, and
(applications, services, information, platforms) in a reliable manner. (Brenda
Michelson, Elemental Links) facilitate the interactions of disparate
mediation services to
distributed information technology resources (applications,
services, information, platforms) in a reliable manner. (Brenda
Michelson, Elemental Links)
6

7. Do I need an ESB?
 ESB Planning Process
7

8. What
is
JBI?
8

9. What is JBI?
 JBI defines an architecture that allows the
construction of integration systems from
plug-in components, that interoperate
through the method of mediated message
exchange.
 (JBI 1.0 Spec)
9

10. Java Business Integration
10

11. Java Business Integration
11

12. JBI Normalized Message
12

13. JBI Packaging
13

14. Apache ServiceMix
http://servicemix.apache.org/

14

15. Apache ServiceMix Architecture
15

16. ServiceMix Features
 Supports many protocols
 File, FTP, HTTP/S, JMS, SMTP, SOAP, TCP, XMPP
 Support many engines
 Apache Camel, Apache CXF, Apache ODE, Drools,
OS Workflow, POJOs, Quartz, Scripting, Saxon
XQuery and XSLT, WS-Notification
 Support for Security
 JAAS, WS-Security
 Web Container/App Server Integration
 Geronimo, JBoss, Jetty, Tomcat, Weblogic,
Websphere
16

17. Apache Software Foundation
Apache
Software
Foundation 17

18. Message Routing
18

19. Message Routing
19

20. Example
20

21. Configuration
21

22. file-poller-su
 <beans xmlns:file='http://servicemix.apache.org/file/1.0'
 xmlns:myApp=quot;http://com.mycompany/myappquot;>
 <file:poller service=quot;myapp:filequot;
 endpoint=quot;pollerquot;
 file=quot;file:///Users/bsnyder/poller/inboxquot;
 targetService=quot;myapp:wiretapquot;
 targetEndpoint=quot;loggerquot; />
 </beans>
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23. eip-wiretap-su
 <beans xmlns:eip=quot;http://servicemix.apache.org/eip/1.0quot;
 xmlns:myapp=quot;http://mycompany.com/myappquot;>
 <eip:wire-tap service=quot;myapp:wiretapquot; endpoint=quot;endpointquot;>
 <eip:target>
 <eip:exchange-target service=quot;myapp:cbrquot; />
 </eip:target>
 <eip:inListener>
 <eip:exchange-target service=quot;myapp:persistquot; />
 </eip:inListener>
 </eip:wire-tap>
 </beans>
23

24. camel-persist-su
 public class PersistOrderRoute extends RouteBuilder {
 public void configure() {
 from(quot;jbi:endpoint:http://mycompany.com/persist/orderquot;)
 .convertBodyTo(Order.class)
 .to(quot;jpa:com.mycompany.Order?persistenceUnit=order-
procquot;)
 .convertBodyTo(Order.class);
 }}
 -------------------------------------------------
 <beans xmlns:camel=”http://activemq.apache.org/camelquot;>
 <camel:camelContext id=quot;camelquot;>
 <package>com.mycompany.persistence</package>
 </camel:camelContext>
 </beans>
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25. eip-cbr-su
 <beans xmlns:eip=quot;http://servicemix.apache.org/eip/1.0quot;
 xmlns:myapp=quot;http://mycompany.com/myappquot;>
 <eip:content-based-router service=quot;myapp:cbrquot;
 endpoint=quot;endpointquot;>
 <eip:rules>
 <eip:routing-rule>
 <eip:predicate>
 <eip:xpath-predicate
 xpath=quot;/message/cheese/text() = 'gouda'quot; />
 </eip:predicate>
 <eip:target>
 <eip:exchange-target service=quot;myapp:queue1quot; />
 </eip:target>
 </eip:routing-rule>
 ...
25

26. eip-cbr-su
 ...
 <eip:routing-rule>
 <eip:predicate>
 <eip:xpath-predicate
 xpath=quot;/message/cheese/text() = 'swiss'quot; />
 </eip:predicate>
 <eip:target>
 <eip:exchange-target service=quot;myapp:queue2quot; />
 </eip:target>
 </eip:routing-rule>
 <eip:routing-rule>
 <eip:target>
 <eip:exchange-target service=quot;myapp:queue3quot; />
 </eip:target>
 </eip:routing-rule>
 </eip:rules>
 </eip:content-based-router>
26

27. jms-producer-su
 <beans xmlns:jms=quot;http://servicemix.apache.org/jms/1.0quot;
 xmlns:myapp=quot;http://mycompany.com/myapp
 xmlns:amq=quot;http://activemq.org/config/1.0quot;>
 <jms:endpoint service=quot;myapp:queue1quot;
 endpoint=quot;myProviderquot;
 role=quot;providerquot;
 destinationStyle=quot;queuequot;
 jmsProviderDestinationName=quot;queue1quot;
 connectionFactory=quot;#connectionFactoryquot; />
 <jms:endpoint service=quot;myapp:queue2quot;
 endpoint=quot;myProviderquot;
 role=quot;providerquot;
 destinationStyle=quot;queuequot;
 jmsProviderDestinationName=quot;queue2quot;
 connectionFactory=quot;#connectionFactoryquot;/>
27

28. jms-producer-su
 ...
 <jms:endpoint service=quot;myapp:queue3quot;
 endpoint=quot;myProviderquot;
 role=quot;providerquot;
 destinationStyle=quot;queuequot;
 jmsProviderDestinationName=quot;queue3quot;
 connectionFactory=quot;#connectionFactoryquot;/>
 <amq:connectionFactory id=quot;connectionFactoryquot;
 brokerURL=quot;tcp://localhost:61616quot; />
 </beans>
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29. JBI Packaging
29

30. Distribution of ServiceMix Containers
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31. Eclipse IDE Tooling For ServiceMix
 Eclipse SOA Tooling Platform (STP)
Project
 http://eclipse.org/stp
 IONA FUSE Eclipse Tooling
 http://open.iona.com/wiki/display/ProdInfo/FUSE+Eclipse+Tools
 Spagic
 http://spagic.com/
 Sopera
 http://sopera.de/en/products/sopera-servicemixtools/
Eclipse SOA Tools Platform (STP) Project
31

32. Eclipse Tooling
Eclipse SOA Tools Platform (STP) Project
32

33. What is Apache Camel?
http://activemq.apache.org/camel/

33

34. What is EIP?
34

35. Example Pattern: Content Based Router
RouteBuilder builder = new RouteBuilder() {
public void configure() {
from(quot;seda:aquot;).choice()
.when(header(quot;fooquot;).isEqualTo(quot;barquot;)).to(quot;seda:bquot;)
.when(header(quot;fooquot;).isEqualTo(quot;cheesequot;)).to(quot;seda:cquot;)
.otherwise().to(quot;seda:dquot;);
}
};
35

36. Example Pattern: Content Based Router
<camelContext id=quot;buildSimpleRouteWithChoicequot;
xmlns=quot;http://activemq.apache.org/camel/schema/springquot;>
<route>
<from uri=quot;seda:aquot;/>
<choice>
<when>
<predicate>
<header name=quot;fooquot;/>
<isEqualTo value=quot;barquot;/>
</predicate>
<to uri=quot;seda:bquot;/>
</when>
<when>
<predicate>
<header name=quot;fooquot;/>
<isEqualTo value=quot;cheesequot;/>
</predicate>
<to uri=quot;seda:cquot;/>
</when>
<otherwise><to uri=quot;seda:dquot;/></otherwise>
</choice>
</route>
</camelContext>
36

37. What’s Coming in ServiceMix 4.0
Apache
ServiceMix
4.0
37

38. ServiceMix 4.0 Building Blocks
 Runtime: OSGi (Apache Felix)
 JBI support still intact!
 NMR is a OSGi service
 Message Broker: Apache ActiveMQ
 Web Services: Apache CXF
 Routing Engine: Apache Camel
38

39. Thank You for Attending!
Questions?
39

40. Visualization
40

41. Camel Makes Routing Much Easier!
from(“http://localhost:8080/requests/”).
tryBlock().
to(“activemq:queue:requests”).
setOutBody(constant(“<ack/>”)).
handle(Throwable.class).
setFaultBody(constant(“<nack/>”));
from((“activemq:queue:requests?transacted=true”).
process(requestTransformer).
to(“http://host:8080/Request”).
filter(xpath(“//nack”)).
process(nackTransformer).
to(“jdbc:store”);
from(“http://localhost:8080/responses/”).
tryBlock().
to(“activemq:queue:responses”).
setOutBody(constant(“<ack/>”)).
handle(Throwable.class).
setFaultBody(constant(“<nack/>”));
from(“activemq:queue:responses?transacted=true”).
process(responseTransformer).
to(“jdbc:store”);
from(“http://localhost:8080/pull/”).
to(“jdbc:load”);
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