To view webinar recording please use below URL: http://wso2.com/library/webinars/2015/11/integrating-mq-protocols-with-wso2-esb-4.9-rabbitmq-mqtt-kafka/ With the release of WSO2 ESB 4.9.0, we introduced enhanced functionalities in message queuing protocols that are heavily used in modern enterprise integrations. It includes completely new transports such as MQTT (message queuing telemetry transport) and Kafka and improvements to the existing RabbitMQ transport. In this webinar, we are going to discuss Improvements to RabbitMQ transport with inbound endpoint support An introduction to MQTT transport and its usage in WSO2 ESB Kafka integration with inbound endpoints A MQTT producer/consumer demo explaining the basic consuming case using MQTT inbound endpoints and basic producer case using MQTT Axis2 transport

1. Integrating MQ Protocols
WSO2 Enterprise Service Bus 4.9.0
Jagath Ariyarathne
Technical Lead
Kevin Rathnasekara
Software Engineer

2. Agenda
o Enterprise Messaging
o Messaging support in WSO2 ESB
o What’s new in ESB 4.9.0 with MQ protocols
o RabbitMQ
o Kafka
o MQTT
o Demo on MQTT Integration

3. Enterprise Messaging
o What is messaging?
Communication between two applications with high-speed, asynchronous
and reliable delivery
o Why we need messaging
o Remote communication
o Platform/language integration
o Asynchronous communication
o Reliable communication

4. Enterprise Messaging cont...
o Achieved by message queues
o Enterprise messaging middleware systems
o ActiveMQ
o IBM WebSphere
o RabbitMQ
o JBoss Messaging
Producer
(Sender)
Message
Queue
Consumer
(Receiver)

5. Enterprise Messaging with WSO2 ESB
o RabbitMQ, Kafka and MQTT transports

6. RabbitMQ with WSO2 ESB
o In-built RabbitMQ transport, easy to configure
o Automatic connection recovery
o All content-types are now supported
o Synchronized request-response support
o Introduced the new feature rich inbound endpoint for RabbitMQ
o Added the SSL support for RabbitMQ inbound/transport

7. RabbitMQ with WSO2 ESB cont...
o RabbitMQ as a transport in ESB 4.9.0

8. RabbitMQ with WSO2 ESB cont...
o Enable RabbitMQ Transport (axis2.xml)
o Transport Receiver
<transportReceiver name="rabbitmq" class="org.apache.axis2.transport.rabbitmq.RabbitMQListener">
<parameter name="AMQPConnectionFactory" locked="false">
<parameter name="rabbitmq.server.host.name" locked="false">192.168.0.3</parameter>
<parameter name="rabbitmq.server.port" locked="false">5672</parameter>
<parameter name="rabbitmq.server.user.name" locked="false">user</parameter>
<parameter name="rabbitmq.server.password" locked="false">abc123</parameter>
</parameter>
</transportReceiver>
o Transport Sender
<transportSender name="rabbitmq" class="org.apache.axis2.transport.rabbitmq.RabbitMQSender"/>

9. RabbitMQ with WSO2 ESB cont...
o Use RabbitMQ transport in a Proxy
<proxy xmlns="http://ws.apache.org/ns/synapse" name="AMQPProxy" transports="rabbitmq" statistics="disable" trace="disable"
startOnLoad="true">
<target>
<inSequence>
<log level="full"/>
<property name="OUT_ONLY" value="true"/>
<property name="FORCE_SC_ACCEPTED" value="true" scope="axis2"/>
</inSequence>
<endpoint>
<address
uri="rabbitmq:/AMQPProxy?rabbitmq.server.host.name=192.168.0.3&rabbitmq.server.port=5672&rabbitmq.server.user.
name=user&rabbitmq.server.password=abc123&rabbitmq.queue.name=queue2&rabbitmq.exchange.name=exchange2"/>
</endpoint>
</target>
<parameter name="rabbitmq.queue.name">queue1</parameter>
<parameter name="rabbitmq.exchange.name">exchange1</parameter>
<parameter name="rabbitmq.connection.factory">AMQPConnectionFactory</parameter>
<description></description>
</proxy>

10. RabbitMQ with WSO2 ESB cont...
o Sample configuration for RabbitMQ Inbound
<inboundEndpoint xmlns="http://ws.apache.org/ns/synapse" name="RabbitMQConsumer" sequence="amqpSeq" onError="amqpErrorSeq" protocol="
rabbitmq" suspend="false">
<parameters>
<parameter name="sequential">true</parameter>
<parameter name="coordination">true</parameter>
<parameter name="rabbitmq.connection.factory">AMQPConnectionFactory</parameter>
<parameter name="rabbitmq.server.host.name">localhost</parameter>
<parameter name="rabbitmq.server.port">5672</parameter>
<parameter name="rabbitmq.server.user.name">guest</parameter>
<parameter name="rabbitmq.server.password">guest</parameter>
<parameter name="rabbitmq.queue.name">queue</parameter>
<parameter name="rabbitmq.exchange.name">exchange</parameter>
<parameter name="rabbitmq.connection.ssl.enabled">false</parameter>
</parameters>
</inboundEndpoint>

11. RabbitMQ with WSO2 ESB cont...

12. Kafka with WSO2 ESB
o Kafka inbound endpoint to connect to inbound connections
<inboundEndpoint xmlns="http://ws.apache.org/ns/synapse"
name="KafkaListenerEP"
sequence="requestHandlerSeq"
onError="inFaulte"
protocol="kafka"
suspend="false">
<parameters>
<parameter name="interval">100</parameter>
<parameter name="coordination">true</parameter>
<parameter name="sequential">true</parameter>
<parameter name="zookeeper.connect">localhost:2181</parameter>
<parameter name="consumer.type">highlevel</parameter>
<parameter name="content.type">application/xml</parameter>
<parameter name="topics">test,sampletest</parameter>
<parameter name="group.id">test-group</parameter>
</parameters>
</inboundEndpoint>

13. Kafka with WSO2 ESB cont...
o Kafka connector for outbound communication
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="KafkaTransport"
transports="https http"
startOnLoad="true"
trace="disable">
<description/>
<target>
<inSequence>
<kafkaTransport.init>
<brokerList>localhost:9092</brokerList>
</kafkaTransport.init>
<kafkaTransport.publishMessages>
<topic>test</topic>
</kafkaTransport.publishMessages>
</inSequence>
</target>
</proxy>

14. Kafka with WSO2 ESB cont...

15. MQTT with WSO2 ESB
o Improved MQTT transport(axis2 transport)
o transport sender
o transport listener
o MQTT inbound endpoint for more versatile integrations

16. MQTT with WSO2 ESB cont...

17. MQTT with WSO2 ESB
o Inbound communication with Axis2 transport
<transportReceiver name="mqtt" class="org.apache.axis2.transport.mqtt.MqttListener">
<parameter locked="false" name="mqttConFactory">
<parameter locked="false" name="mqtt.server.host.name">localhost</parameter>
<parameter name="mqtt.connection.factory">mqttConFactory</parameter>
<parameter locked="false" name="mqtt.server.port">1883</parameter>
<parameter locked="false" name="mqtt.client.id">client-id-1234</parameter>
<parameter locked="false" name="mqtt.topic.name">esb.test</parameter>
</parameter>
</transportReceiver>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="SampleProxy"
transports="mqtt"
startOnLoad="true"
trace="disable">

18. MQTT with WSO2 ESB cont...
Outbound communication with Axis2 transport
o Axis2.xml configuration
<transportSender name="mqtt" class="org.apache.axis2.transport.mqtt.MqttSender"/>
o Sample Sequence
<sequence name="dispatchSeq" onError="fault">
<log level="full"/>
<send>
<endpoint>
<address uri="mqtt:/sender?mqtt.server.host.name=localhost&amp;mqtt.server.port=1884&amp;mqtt.client.
id=mqtt.sender.id&amp;mqtt.topic.name=esb.publish.topic&amp;mqtt.subscription.qos=2&amp;mqtt.blocking.sender=true"/>
</endpoint>
</send>
<drop/>
</sequence>

19. Demo
A
B

20. References
o WSO2 Documentation
o https://docs.wso2.com/display/ESB490/RabbitMQ+AMQP+Transport
o https://docs.wso2.com/display/ESB490/Kafka+Inbound+Protocol
o https://docs.wso2.com/display/ESB490/MQTT+Transport
o Blogs
o http://blog.maheeka.me/2015/09/esb-490-enhanced-rabbitmq-support.html
o http://rkathees.blogspot.com/2015/09/wso2-esb-490-kafka-support.html
o http://elilsivanesan.blogspot.com/2015/04/mqtt-v31-introduction.html
o Other
○ http://www.eclipse.org/paho/files/javadoc/index.html

21. Contact us !