Apache ActiveMQ, Camel, CXF and ServiceMix Overview

Apache Ac6veMQ, Camel, CXF & ServiceMix Overview Open Source Integra6on and Messaging Marcelo Jabali Sr. Solutions Consultant Sep., 2011 A Progress So3ware Company 1 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Agenda §  Apache Ac6veMQ §  Apache Camel §  Apache CXF §  Apache ServiceMix §  FuseSource Overview 2 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

About Me Marcelo Jabali FuseSource marcelo@fusesource.com marcelojabali.blogspot.com mjabali 3 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Ac6veMQ §  A high performance, reliable messaging fabric, suppor6ng JMS, C, .Net, and other frameworks. Clients connect to thebroker using Networkconnectors with connectors controlsimple URIs how the broker interacts with other brokers for discovery, replication, Topics and queues failover, clustering created and store & dynamically. forward. … all based on a flexible Spring- File & JDBC-based based core. message stores supported.4 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

JMS Fundamentals Broker <<Application>> <<Application>> :JMSClient Produce Consume :JMSClient message Destination message Producer Consumer §  The JMS specifica6on defines a set of Java interfaces and seman6cs for inter-‐applica6on messaging §  JMS defines two messaging models: •  Point-to-point (PTP) •  Publish and Subscribe (Pub/Sub) 5 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or affiliates. All rights reserved. A Progress So3ware Company

Point-‐to-‐Point Messaging Model Broker Client A Queue Produce Consume Client B message message §  With the Point-to-Point messaging model: •  Each message has only one and only consumer. •  There are no timing dependencies; consumers do not have to be connected at the time the message is sent. §  PTP is ideal for processing business transactions.6 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Publish and Subscribe Messaging Model Client B Broker Client A Topic Client C Produce Consume message message Client D §  With the Pub/Sub messaging model: •  One message goes to zero-to-many consumers based on the number of current subscribers •  Subscribers with an active subscription at the time the broker gets the message receive a copy of the message •  Subscribers can be durable or non-durable §  Pub/Sub is ideal for publishing business events.7 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

JMS Classes and Interfaces §  These are the classes and interfaces that you use to program the JMS client applica6on 8 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

JMS Messages §  Messages form the basic unit of work of a message provider §  They are simple and flexible §  Basic components of a message: •  Header (JMSDes6na6on, JMSDeliveryMode, JMSExpira6on, etc) •  Proper6es (op6onal) – User-‐defined proper6es •  Body (op6onal) 9 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or affiliates. All rights reserved. A Progress So3ware Company

Ac6veMQ Enhancements to JMS §  Ac6veMQ Connec6on Factory segngs •  disableTimeStampByDefault, copyMessageOnSend, useCompression, objectMessageSerializa6onDefered, useAsyncSend, useRetroac6veConsumer §  Des6na6ons are typically created on demand •  They can also be created at the broker startup §  Retroac6ve Consumers •  Last Image, Fixed Count or Fixed Size §  Des6na6on Policies •  Dispatch policies – load balance consumers/producers across destinations. •  Recovery Policies – recover messages/subscriptions. •  Pre-fetch policies – acknowledge messages sent to consumers in batches. 10 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Ac6veMQ Enhancements to JMS (cont.) §  Advisory Channels •  Starting and stopping consumers and producers •  Creating and destroying temporary destinations •  Expiring messages on topics and queues •  Sending messages from brokers to destinations with no consumers •  Starting and stopping connections §  Exclusive Consumer Priority §  Message Groups §  Composite & Virtual Des6na6ons •  Forward, Route & High-‐Available Load-‐Balanced Durable Subscribers 11 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

What are Network of Brokers? §  In basic deployments, producers and consumers connect to the same broker to exchange messages §  With broker networks, messages not consumed locally are forwarded broker-to-broker and dispatched to remote clients. •  The message can travel through multiple brokers before it is consumed •  Each message is owned by a single broker at any point in time. §  Broker networks allow you to scale your deployment by: •  Accommodating many more clients, e.g. when the number of sockets is limited by the OS •  Increasing message throughput because messages are load- balanced across all interested consumers. •  Distributing consumers and producers geographically across a WAN, firewall or other bridges12 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Network of Brokers -‐ Example P A C C B C §  Brokers A, B and C are part of a broker network §  There is a producer to a queue on broker A and consumers from the queue on brokers A and B §  Messages sent to the queue are dispatched to consumers on A and B; messages are not forwarded to C •  If a consumer from the queue starts on C, messages will ﬂow there as well 13 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Replica6on, Clustering & Failover Broker replication Shared message store <<jvm>> <<jvm>> frodo:ActiveMQ frodo:ActiveMQ Master state Brokers replicated to compete for slave using file system or network database connector. lock. <<jvm>> <<jvm>> samwise:ActiveMQ samwise:ActiveMQ14 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Networks Of Master-‐Slave Pairs §  A clustered, highly available approach <<jvm>> <<jvm>> <<jvm>> frodo:ActiveMQ gandalf:ActiveMQ merry:ActiveMQMasterSlave <<jvm>> <<jvm>> <<jvm>> samwise:ActiveMQ saruman:ActiveMQ pip:ActiveMQ15 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Camel §  Apache Camel is a powerful Open Source Integra6on Framework based on known Enterprise Integra6on Paqerns http://enterpriseintegrationpatterns.com/16 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Camel -‐ Paqerns §  50+ Enterprise Integra6on Paqerns http://camel.apache.org/eip17 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Camel – Components, Data Formats and Languages §  80 Components (ac6vemq, bean, cxf, ﬁle, 3p, hibernate, jdbc, iba6s, jms, jeqy, mina, neqy, 6mer, xslt, etc) •  http://camel.apache.org/components.html §  19 Data Formats (csv, serializa6on, zip, hl7, soap, jaxb, etc) •  http://camel.apache.org/data-format.html §  15 Expression Languages (EL, Simple, XQuery, Xpath, JavaScript, Ruby, Python, PHP, etc) •  http://camel.apache.org/languages.html18 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Camel -‐ Architecture Camel can bedeployed in a wide An endpoint is a Containervariety of container message sourcetypes or sink Camel context EndpointsThe Camel context isan instance of theCamel runtimeenvironment Components A component is a plug-in endpoint factory; Camel provides a wide variety of components 19 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Camel §  Camel provides an embedded DSL (in Java, Spring or Scala) for implemen6ng enterprise integra6on paqerns •  The DSL uses URIs to define endpoints which are combined to generate integra6on flows 20 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or affiliates. All rights reserved. A Progress So3ware Company

Apache Camel §  Camel Content-‐Based Router -‐ Spring DSL <camelContext> <route> <from uri="activemq:queue:NewOrders"/> <choice> <when> <xpath>/order/product = widget</xpath> <to uri="activemq:Orders.Widgets"/> </when> <otherwise> <to uri="activemq:Orders.Gadgets"/> </otherwise> </choice> </route> </camelContext> 21 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Camel §  Camel Content-‐Based Router -‐ Java DSL from("activemq:queue:NewOrders") .choice() .when().xpath("/order/product = widget") .to("activemq:Orders.Widget") .otherwise() .to("activemq:Orders.Gadget"); 22 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Typical Camel Route Development Process §  Use a Maven archetype to generate an outline project §  Edit the POM to include additional dependencies §  Add your Java code into src/main/java, and/or Spring configuration to src/main/resources/META-INF/spring §  Add instructions to the Maven Felix plugin, to assist in the generation of OSGi manifest information §  Test using the Camel Maven plugin mvn camel:run §  Deploy into the Apache ServiceMix OSGi container •  Drop into deploy/ directory (pre-production testing) •  Install a bundle/feature from a maven repository (production environment)23 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache Camel -‐ Example §  Goals •  Pickup files from a directory •  Make sure we only pickup 3 files per 30 seconds •  Store into JMS queue •  Listen on JMS queue •  And upload file to FTP server 24 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or affiliates. All rights reserved. A Progress So3ware Company

Apache Camel – Example §  Camel Route Spring XML DSL <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> 25 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache CXF §  Apache CXF is an open-source Java service framework §  Full implementation of the JAX-WS 2.0 specification, radically simplifying the process of exposing existing Java code as a Web service or writing new Web services. §  Provides design-time tools and runtime infrastructure that are technology-neutral. §  Designed to work with variety of container servers, languages, and messaging systems §  Originally named Celtix and later moved to Apache where it was merged with the Xfire project26 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Building Applica6ons with CXF §  CXF abstracts away the details of inter-process communication between services and consumers. •  … allows developers to focus efforts on business logic rather than integration logic. §  CXF supports code-first and contract-first approaches: •  Expose “plain old Java objects” (POJOs) as a services, or •  Explicitly annotate Java classes, or •  Start with a WSDL contract. §  Use CXF to develop both client- and server-side components. •  Deploy as standalone Java applications, or easily integrate into a Spring-based application 27 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache CXF -‐ Architecture §  CXF provides a layered communication stack to services and consumers28 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache CXF -‐ Architecture §  When a component sends a message to a service, it uses a Java API derived from the WSDL contract •  The JAX-WS mapping is used. •  The Java API is protocol neutral. §  A CXF binding creates the message payload •  Pure XML, SOAP, JSON, or some other message format. §  Quality-of-service extensions can be added using message interceptors •  CXF supports a number of Web Services QoS standards. §  CXF then transmits the message using a transport. •  CXF includes HTTP, JMS, and AMQP out-of-the-box. •  You can write custom transports for CXF; for example: TCP, SMTP, FTP 29 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

CXF Deployment Model §  CXF can also be deployed in a number of different container technologies: •  In a Servlet engine (e.g. Tomcat) •  In a J2EE container (using bi-directional JCA) (e.g. JBOSS) •  In a JBI (Java Business Integration) container (e.g. ServiceMix) •  In an OSGi container (e.g. ServiceMix) •  Stand-alone JVM (e.g. java –jar myapp.jar) §  This flexible deployment approach allows you to deploy your CXF service-oriented components anywhere 30 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache ServiceMix §  Full open source implementation of an Enterprise Service Bus •  Based on OSGi technology (http://www.osgi.org) §  Support for multiple component models •  OSGi bundles •  JBI artifacts •  Servlets •  Spring beans •  Camel routes (http://camel.apache.org) •  CXF web services and RESTful services (http:// cxf.apache.org) •  Extensible to support additional component models, such as EJB31 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache ServiceMix -‐ Architecture §  ServiceMix employs a layered architecture based on OSGi •  The core : A lightweight runtime named “Karaf”, which extends OSGi with powerful features for handling and managing OSGI bundles •  The technology layer : A layer of component technologies that sits on top of the core to support your applications32 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache ServiceMix – Core Layer Features §  Hot deployment support for OSGi bundles §  Dynamic configuration of services through the OSGi “ConfigurationAdmin” service §  Dynamic logging back-end provided by Log4J supports different APIs (SLF4J, Java Utils, JCL, Avalon, Tomcat, OSGi) §  Application provisioning through file-drop, Maven repository and remote download (http://) §  Administration via an extensible shell console §  Secure remote access via ssh §  Security framework based on JAAS33 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache ServiceMix – Technology Layer Features §  Spring Framework •  ServiceMix loads an OSGi bundle into its runtime, or generates an OSGi bundle on the fly, and then instantiates the Spring application context §  JMS Message Broker •  ServiceMix deploys the Apache ActiveMQ broker (OSGi-ready) §  JAX-WS/JAX-RS Web Services support •  ServiceMix deploys the Apache CXF runtime (OSGi-ready) §  Enterprise Integration Patterns (EIP) support •  ServiceMix deploys the Apache Camel runtime (OSGi-ready) §  Java Business Integration (JBI) support •  ServiceMix provides a JBI 1.0 container, to support legacy code implemented as service units / service assemblies and deployed using ServiceMix 3.x §  Can be extended to support technologies such as SCA or EJB334 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Apache ServiceMix – Deployment Model §  When you deploy a ServiceMix solution, you typically deploy the core (Karaf) plus one or more technology components §  Examples: •  To support EIPs : Karaf runtime + Camel feature •  To support JAX-WS/JAX-RS solutions : Karaf runtime + CXF feature •  To support JMS solutions : Karaf runtime + ActiveMQ feature •  To support JBI-based solutions : Karaf runtime + JBI feature35 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

FuseSource Corpora6on The Leaders in Open Source Integra9on and Messaging Produc9zed distribu9ons •  Integrated Team behind the projects •  Tested •  Leaders at Apache •  Tooling •  Product roadmaps •  Code contribu9ons Enterprise support •  Subscrip9ons •  Training •  Consul9ng 36 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

FuseSource Subscrip6on : Cer6ﬁed Distribu6ons Fuse ESB (ServiceMix), Fuse Message Broker (Ac9veMQ), Fuse Media9on Router (Camel), Fuse Services Framework (CXF) •  Tested – integrated tests on supported plasorms •  Produc6zed distribu6ons – versioned, supported releases •  Freely available with Apache license (can edit code and redistribute) •  Enterprise-‐class distribu6ons of popular apache projects 37 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Forrester Wave Report Q2 2011: Fuse ESB is a “Leader” §  FuseSource placed in “Leader” category in company with large, established vendors §  One of few open source solu6ons considered for this report §  Highest ranked open source solu6on 38 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

FuseSource : Team that Wrote the Code No one knows the code, or inﬂuences the projects at Apache more than FuseSource: •  Co-‐founders and PMC members of ServiceMix, Ac6veMQ, Camel, … •  Over 25 ac6ve commiqers on 11 Apache projects Guillaume Nodet James Strachan Rob Davis Hiram Chirino Dejan Gert Jon Anstey Gary Tully Willem Jiang Claus Ibsen Bosanac Vanthienen 39 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

FuseSource Subscrip6on = Long Term Success Support •  Enterprise-‐class 24x7 coverage •  Global organiza6on •  Mission-‐cri6cal Influence integra6on exper6se •  Product roadmaps •  Updates and migra6on •  Planning processes assistance •  Conduit to Apache Tools•  Development •  Opera6ons •  Management •  Performance •  Documenta6on 40 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

Thanks! No vendor lock-‐in Free to redistribute Enterprise class A Progress So3ware Company 41 Copyright © 2011 Progress So3ware Corpora6on and/or its subsidiaries or aﬃliates. All rights reserved. A Progress So3ware Company

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Apache ActiveMQ, Camel, CXF and ServiceMix Overview

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