Apache Camel - FUSE community day London 2010 presentation

Apache Camel Claus Ibsen Principal Software Engineer, Progress Software June 2010 1 Tuesday, June 8, 2010

Agenda  Who is Claus Ibsen?  The birth of Apache Camel  What is Apache Camel  A little example  Whats included in the box?  Running Camel  The Camel Community  Where are we today?  Where are we going tomorrow?  Q and A 2 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Who is Claus Ibsen?  Principal Software Engineer at Progress Software • Full time Apache Camel hacker  Apache Camel committer for 2+ years • 30 months working with Camel  Co-author of Camel in Action book • Available in Q3 2010  Contact • cibsen@progress.com • claus.ibsen@gmail.com • http://davsclaus.blogspot.com/ • http://twitter.com/davsclaus 3 © 2009 Progress Software Corporation Tuesday, June 8, 2010

The birth of Apache Camel  Initial Commit Log r519901 | jstrachan | 2007-03-19 11:54:57 +0100 (Mon, 19 Mar 2007) | 1 line Initial checkin of Camel routing library  Apache Camel 1.0 released June 2007  Apache Camel is 3 years old 6 © 2009 Progress Software Corporation Tuesday, June 8, 2010

The birth of Apache Camel  My initial commit r640963 | davsclaus | 2008-03-25 21:07:10 +0100 (Tue, 25 Mar 2008) | 1 line Added unit test for mistyped URI 8 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Quote from the web site Apache Camel is a Powerful Open Source Integration Framework based on known Enterprise Integration Patterns 10 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Filter Route Endpoint A = endpoint(“activemq:queue:quote”); Endpoint B = endpoint(“mq:quote”); Predicate isWidget = xpath(“/quote/product = ‘widget’”); from(A).filter(isWidget).to(B); 22 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Filter Route - Java DSL public void configure() throws Exception { Endpoint A = endpoint("activemq:queue:quote"); Endpoint B = endpoint("mq:quote"); Predicate isWidget = xpath("/quote/product = ‘widget’"); from(A).filter(isWidget).to(B); } 23 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Filter Route - Java DSL import org.apache.camel.builder.RouteBuilder; import static org.apache.camel.builder.xml.XPathBuilder.xpath; public class FilterRoute extends RouteBuilder { public void configure() throws Exception { Endpoint A = endpoint("activemq:queue:quote"); Endpoint B = endpoint("mq:quote"); Predicate isWidget = xpath("/quote/product = ‘widget’"); from(A).filter(isWidget).to(B); } } 24 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Filter Route - Java DSL import org.apache.camel.builder.RouteBuilder; public class FilterRoute extends RouteBuilder { public void configure() throws Exception { from("activemq:queue:quote") .filter().xpath("/quote/product =‘widget’") .to("mq:quote"); } } 25 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Recap - Concepts of Camel • Enterprise Integration Patterns • Routing • Domain Specific Language (DSL) • Endpoints • URIs • Predicates & Expressions • Components and much more ... Simplify Integration 28 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Content Based Router - Spring XML <camelContext> <route> <from uri="activemq:NewOrders"/> <choice> <when> <xpath>/order/product = 'widget'</xpath> <to uri="activemq:Orders.Widgets"/> </when> <otherwise> <to uri="activemq:Orders.Gadgets"/> </otherwise> </choice> </route> </camelContext> 31 © 2009 Progress Software Corporation Tuesday, June 8, 2010

What is Apache Camel  Content Based Router - Java DSL from("activemq:NewOrders") .choice() .when().xpath(“/order/product = 'widget'”) .to(“activemq:Orders.Widget”); .otherwise() .to(“acitvemq:Orders.Gadget”); 32 © 2009 Progress Software Corporation Tuesday, June 8, 2010

A little example  Based on community user (Gunnar Hillert) • http://hillert.blogspot.com/2009/09/camellos-discovering-apache- camel-ii.html  Goals • 1) Pickup files from a directory • 2) Make sure we only pickup 3 files per 30 seconds • 3) Store into JMS queue • 4) Listen on JMS queue • 5) And upload file to FTP server 34 © 2009 Progress Software Corporation Tuesday, June 8, 2010

A little example  Goals using Enterprise Integration Patterns 1 2 3 4 5  Goals • 1) Pickup files from a directory • 2) Make sure we only pickup 3 files per 30 seconds • 3) Store into JMS queue • 4) Listen on JMS queue • 5) And upload file to FTP server 35 © 2009 Progress Software Corporation Tuesday, June 8, 2010

A little example  Goals using Enterprise Integration Patterns from throttle to from to  Goals • 1) Pickup files from a directory • 2) Make sure we only pickup 3 files per 30 seconds • 3) Store into JMS queue • 4) Listen on JMS queue • 5) And upload file to FTP server 36 © 2009 Progress Software Corporation Tuesday, June 8, 2010

A little example  Camel DSL in XML <camelContext> <route> <from uri="file:camellos/inbox?move=.done"/> <throttle maximumRequestsPerPeriod="3” timePeriodMillis="30000”> <to uri="activemq:queue:camellos"/> </throttle> </route> <route> <from uri="activemq:queue:camellos"/> <to uri="ftp://admin:secret@localhost:3333"/> </route> </camelContext> 37 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  70+ Components activemq crypto ﬂatpack irc ldap activemq-journal cxf freemarker javaspace mail/imap/pop3 amqp cxfrs ftp/ftps/sftp jbi mina atom dataset gae jcr mock bean direct hdfs jdbc msv bean validation esper hibernate jetty nagios browse event hl7 jms netty cache exec http jpa nmr cometd ﬁle ibatis jt/400 printer http://camel.apache.org/components.html 40 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  70+ Components properties scalate stream xslt quartz seda string-template ejb quickﬁx servlet test ref smooks timer restlet smpp validation rmi snmp velocity rnc spring-integration vm rng spring-security xmpp rss sql xquery http://camel.apache.org/components.html 41 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  18 Data Formats bindy protobuf castor serialization csv soap crypto tidy markup ﬂatpack xml beans gzip xml security hl7 xstream jaxb zip json dozer http://camel.apache.org/data-format.html 42 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Predicates & Expressions BeanShell PHP EL Python Groovy Ruby JavaScript Simple JSR 223 SQL OGNL XPath MVEL XQuery http://camel.apache.org/languages.html 44 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  DSL in 3 programming languages Java XML from(A).filter(isWidget).to(B); <route> <from ref="A"/> <filter> <xpath>/quote/product = ‘widget’</xpath> <to ref="B"/> </filter> </route> from(A) filter(isWidget) --> B Scala 45 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Custom Type Converters @Converter public class MyTypeConverter { @Converter public String toString(MyOrder order) { StringBuilder sb = new StringBuilder(); ... return sb.toString(); } } # META-INF/services/org/apache/camel/TypeConverter com.acme.converters META-INF file in the JAR 47 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Powerful bean integration • Adapt to your beans • EIP as @annotations - @Produce - @Consume - @RecipientList - @RoutingSlip more to come in future releases ... 48 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Bean as Message Translator from("activemq:Incoming”). beanRef("myBeanName”, “someMethod"). to("activemq:Outgoing"); public class Foo { public String someMethod(String name) { return “Hello “ + name; } } 50 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Bean Parameter Binding with XPath public class Foo { public String processOrder( String orderAsXml, @XPath(”/order/@id”) String oid, @Header(”JMSCorrelationID”) String cid) { ... } } 51 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Bean Parameter Binding with Languages public class Foo { public void processOrder( MyOrder order, @Simple(”${body.customer.gold}”) boolean gold) { ... } } MyOrder - id Customer - customer - gold - street - zip 52 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Sending message public class Foo { @Produce(uri="activemq:foo.bar") ProducerTemplate producer; public void doSomething() { if (whatever) { producer.sendBody("<hello>world!</hello>"); } } } 53 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Sending message w/ interface public class Echo { @Produce(uri="http://somewhere/echo") EchoService echo; public void doTheEcho() { String reply = echo.sayEcho("Hi"); } } 55 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Sending message w/ no Camel API <proxy id="echo" serviceInterface="com...EchoService" serviceUrl="http://somewhere/echo"/> public class Echo { @Autowired EchoService echo; public void doTheEcho() { String reply = echo.sayEcho("Hi"); } } 56 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  The EJB MessageDrivenBean in Camel public class Foo { @Consume(uri="activemq:cheese") public void onCheese(String name) { ... } } 57 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Whats included in the box?  Maven tooling • Maven Archetypes to create new projects mvn archetype:generate -DarchetypeGroupId=org.apache.camel.archetypes -DarchetypeArtifactId=camel-archetype-war -DarchetypeVersion=2.3.0 • Maven goals to run project - mvn camel:run - mvn jetty:run 62 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Running Camel  Java Application CamelContext context = new DefaultCamelContext(); context.addRoutes(new MyRouteBuilder()); context.start();  Spring Application <camelContext> <package>com.acme.quotes</package> </camelContext> 65 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Running Camel  Lightweight  Embeddable  Known Deployment Options • Standalone Java Application Known Containers • Web Application Apache ServiceMix Apache ActiveMQ • J2EE Application Apache Tomcat • JBI Jetty • OSGi JBoss IBM WebSphere • Google App Engine BEA WebLogic • Java Web Start Oracle OC4j • Spring Application GAE ... others 66 © 2009 Progress Software Corporation Tuesday, June 8, 2010

The Camel Community  Camel website • 40% increase (comparing last two 6 month periods) • 2000-2500 visits per weekday  High activity on mailing list http://old.nabble.com/ 68 © 2009 Progress Software Corporation Tuesday, June 8, 2010

The Camel Community  A lot in each new release Release Date Tickets Camel 2.0 Aug 2009 760 Camel 2.1 Dec 2009 303 Camel 2.2 Feb 2010 180 Camel 2.3 May 2010 273 72 © 2009 Progress Software Corporation Tuesday, June 8, 2010

The Camel Community  3rd party integrating Camel • Apache ServiceMix • Apache ActiveMQ • Apache James In Progress • OpenESB • Drools • Progress Actional Diagnostics • Smooks • FuseHQ • Doozer • Open eHealth Integration Platform • JBossESB • Grails Camel Plugin • Play Framework • Akka • Scalate 74 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we today?  Some highlights of Apache Camel 2.3 • Overhauled Aggregator EIP • Easier thread pool configuration • Properties component • <routeContext> in Spring XML • 10+ new components 76 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we today?  Overhauled Aggregator EIP • 5 independent completion conditions - size - timeout - interval - predicate - batch consumer • Parallel publishing • Persistent http://hawtdb.fusesource.org/ • Transactional 77 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we today?  Easier thread pool configuration  ExecutorServiceStrategy • API for creating and lookup thread pools • Consistent thread names • Register pools with JMX • Handle lifecycle (shutdown) Easier for Component writers 83 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we today?  Easier thread pool configuration  ThreadPoolProfile • Template defining pool settings • 1 default profile • 0..n custom profiles <threadPoolProfile id="fooProfile" poolSize="20" maxPoolSize="50" maxQueueSize="200"/> Easier for end users 84 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we today?  Properties Component Properties Component File {{key}} <from uri=“jms:queue:{{inbox}}”/> <to uri=“bean:validateOrder”/> 85 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we today?  <routeContext> in Spring XML • Re-usable route templates (in separate Spring XML files) <routeContext id="myCoolRoutes"> <route id="cool"> <from uri="direct:start"/> <to uri="mock:result"/> </route> myCoolRoutes.xml </routeContext> <import resource="myCoolRoutes.xml"/> <camelContext> <routeContextRef ref="myCoolRoutes"/> </camelContext> 86 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we today?  10+ new components • Properties • Nagios • Netty • Exec • JSR-303 bean validator • Spring Security • Java Cryptographic Extension • OAuth and Google Login to GAE • Eclipse RCP • SOAP (JAXB and JAX-WS) 87 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Where are we going tomorrow?  Roadmap for Apache Camel 2.4  The major targets • Asynchronous routing engine • OSGi improvements (blueprint etc.) • Security in DSL • Apache ODE component (BPEL) ?  Schedule • GA in Q3 2010 89 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Q and A  Where do I get more information? - Camel website: http://camel.apache.org - FUSE website: http://fusesource.com - Camel in Action book: http://manning.com/ibsen 91 © 2009 Progress Software Corporation Tuesday, June 8, 2010

Apache Camel - FUSE community day London 2010 presentation

by Claus Ibsen

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Apache Camel - FUSE community day London 2010 presentation Presentation Transcript

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