Service-Oriented Integration With Apache ServiceMix

Service Oriented Integration
With Apache ServiceMix
Bruce Snyder
bsnyder@apache.org
21 Nov 2008
Malmo, Sweden

Agenda

 Enterprise Service Bus
 Java Business Integration
 Apache ServiceMix ESB

2

What is an ESB?

"An Enterprise Service Bus (ESB) is a new architecture that exploits Web
services, messaging Service Bus (ESB) is a and transformation. ESBs
"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

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 services throughout an enterprise
applications and other backbone with intelligent transformation and
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

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 and
integration solution that provides routing, invocation,
(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

Do I need an ESB?

ESB Planning Process

7

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

Java Business Integration

10

Java Business Integration

11

JBI Normalized Message

12

Apache ServiceMix

http://servicemix.apache.org/
14

Apache ServiceMix Architecture

15

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

Apache Software Foundation

Apache
Software
Foundation
17

file-poller-su

<beans xmlns:file='http://servicemix.apache.org/file/1.0'
xmlns:myApp="http://com.mycompany/myapp">

<file:poller service="myapp:file"
endpoint="poller"
file="file:///Users/bsnyder/poller/inbox"
targetService="myapp:wiretap"
targetEndpoint="logger" />
</beans>

22

eip-wiretap-su

<beans xmlns:eip="http://servicemix.apache.org/eip/1.0"
xmlns:myapp="http://mycompany.com/myapp">

<eip:wire-tap service="myapp:wiretap" endpoint="endpoint">
<eip:target>
<eip:exchange-target service="myapp:cbr" />
</eip:target>
<eip:inListener>
<eip:exchange-target service="myapp:persist" />
</eip:inListener>
</eip:wire-tap>

</beans>

23

camel-persist-su

public class PersistOrderRoute extends RouteBuilder {
public void configure() {
from("jbi:endpoint:http://mycompany.com/persist/order")
.convertBodyTo(Order.class)
.to("jpa:com.mycompany.Order?persistenceUnit=order-proc")
.convertBodyTo(Order.class);
}}

-------------------------------------------------

<beans xmlns:camel=”http://activemq.apache.org/camel">
<camel:camelContext id="camel">
<package>com.mycompany.persistence</package>
</camel:camelContext>
</beans>

24

eip-cbr-su

<beans xmlns:eip="http://servicemix.apache.org/eip/1.0"
xmlns:myapp="http://mycompany.com/myapp">

<eip:content-based-router service="myapp:cbr"
endpoint="endpoint">
<eip:rules>
<eip:routing-rule>
<eip:predicate>
<eip:xpath-predicate
xpath="/message/cheese/text() = 'gouda'" />
</eip:predicate>
<eip:target>
<eip:exchange-target service="myapp:queue1" />
</eip:target>
</eip:routing-rule>
...

25

eip-cbr-su

...
<eip:routing-rule>
<eip:predicate>
<eip:xpath-predicate
xpath="/message/cheese/text() = 'swiss'" />
</eip:predicate>
<eip:target>
</eip:target>
</eip:routing-rule>
<eip:routing-rule>
<eip:target>
</eip:target>
</eip:routing-rule>
</eip:rules>
</eip:content-based-router>

26

jms-producer-su

<beans xmlns:jms="http://servicemix.apache.org/jms/1.0"
xmlns:myapp="http://mycompany.com/myapp
xmlns:amq="http://activemq.org/config/1.0">

<jms:endpoint service="myapp:queue1"
endpoint="myProvider"
role="provider"
destinationStyle="queue"
jmsProviderDestinationName="queue1"
connectionFactory="#connectionFactory" />

role="provider"
connectionFactory="#connectionFactory"/>
27

jms-producer-su

...
role="provider"
connectionFactory="#connectionFactory"/>

<amq:connectionFactory id="connectionFactory"
brokerURL="tcp://localhost:61616" />

</beans>

28

Distribution of ServiceMix Containers

31

Eclipse IDE Tooling For ServiceMix

 Eclipse SOA Tooling Platform (STP) Project
 http://eclipse.org/stp

 Spagic
 http://spagic.com/
 SOPERA ServiceMixTools
 http://sopera.de/en/products/sopera-servicemixtools/

Eclipse SOA Tools Platform (STP) Project

32

Eclipse Tooling

Eclipse SOA Tools Platform (STP) Project

33

What is Apache Camel?

http://activemq.apache.org/camel/
34

Example Pattern: Content Based Router

RouteBuilder builder = new RouteBuilder() {
public void configure() {
from("activemq:TEST.QUEUE").choice()
.when(header("foo").isEqualTo("bar")).
to("bean:MyBean?methodName=processMessage")
.when(header("foo").isEqualTo("cheese")).
to("file:/opt/dropbox")
.otherwise().to("log:Test");
}
}; 36

Example Pattern: Content Based Router

<camelContext id="buildSimpleRouteWithChoice"
xmlns="http://activemq.apache.org/camel/schema/spring">
<route>
<from uri="file:/Users/bsnyder/smxdropbox"/>
<choice>
<when>
<predicate>
<header name="foo"/>
<isEqualTo value="bar"/>
</predicate>
<to uri="ftp://hostname:1234/"/>
</when>
<when>
<predicate>
<header name="foo"/>
<isEqualTo value="cheese"/>
</predicate>
<to uri="mina:tcp:remotehost:9876"/>
</when>
<otherwise><to uri="imap:mymailhost:110"/></otherwise>
</choice>
</route>
</camelContext>
37

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”);

38

What’s Coming in ServiceMix 4.0

Apache
ServiceMix
4.0 39

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

40

Thank You for Attending!

Questions?

41

Service-Oriented Integration With Apache ServiceMix

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