Active mq read and write flow in mule
- 2. Apache ActiveMQ is a popular open source messaging provider which is easy to integrate with Mule. Mule soft provides the out of the box support of ActiveMQ. In this tutorial we will see a basic example of ActiveMQ integration with mule where we will be reading and writing messages from/to the queue. 7/26/2017Ankit Lawaniya 2
- 3. To write messages to the ActiveMQ we need a flow that has JMS outbound endpoint at the end of the flow that writes the message to queue. To read messages from ActiveMQ we need a flow that has JMS inbound endpoint at the beginning of the flow that reads your queue. 7/26/2017Ankit Lawaniya 3
- 4. We basically have two flows in this demo: Write Flow: HTTP Inbound endpoint receives Employee XML data through the Http Request and forward it to the JMS queue. Read Flow: Reads the staged XMLs from the JMS queue and processes the messages based on the department of Employees. 7/26/2017Ankit Lawaniya 4
- 5. Here’s an outline of the simple steps required to implement this example: Create and Anypoint Studio project Import ActiveMQ libraries Create an ActiveMQ connector Enqueued the payload to JMS Queue Dequeued the payload from the JMS Queue Run the sample 7/26/2017Ankit Lawaniya 5
- 6. <jms:activemq-connector name="Active_MQ2" username="admin" password="password" brokerURL="tcp://localhost:61616" validateConnections="true" doc:name="Active MQ"/> 7/26/2017Ankit Lawaniya 6
- 7. <jms:inbound-endpoint queue="myqueue" connector- ref="Active_MQ" doc:name="JMS"> <jms:transaction action="ALWAYS_BEGIN"/> </jms:inbound-endpoint> 7/26/2017Ankit Lawaniya 7
- 8. <jms:outbound-endpoint queue="myqueue" connector-ref="Active_MQ" doc:name="JMS"/> Note: The above mentioned the minimum configuration that we have used in the demo exercise , there are n number of attributes which can be applied on the Inbound and outbound endpoint , to understand all of the attributes please refer mulesoft site. 7/26/2017Ankit Lawaniya 8
- 9. Write Flow: Create a new flow in Mule Studio and name it “writeFlow”. To configure the project to use ActiveMQ libraries, right-click on the project -> Properties -> Java Build Path -> Add External JARs. Select “activemq- all-5.4.3.jar” from <ACTIVEMQ_HOME>. Drag and drop the Http Listener to the source of the flow to receive the incoming messages, Once Http Listener is in place drag and drop the JMS Outbound endpoint at the end of the flow ,We will use the request payload received from an HTTP inbound endpoint to seed the ActiveMQ Queue. 7/26/2017Ankit Lawaniya 9
- 11. Read Flow: Create a new flow in Mule Studio and name it “readFlow”.Drag and drop the JMS Inbound endpoint at the beginning of the flow to receive the incoming messages, once message has been received in the flow then we can start processing the payload. 7/26/2017Ankit Lawaniya 11
- 14. First, run ActiveMQ using executable “activemq” from <ACTIVEMQ_HOME>/bin folder. Make sure you can access the ActiveMQ admin page using http://localhost:8161/. Open Rest Client and hit the URL with the payload on http://localhost:8089/jms. This will enqueue the request to the ActiveMQ JMS Queue “myqueue”. 7/26/2017Ankit Lawaniya 14
- 15. Verify this by examining the ActiveMQ administration page at http://localhost:8161/admin/queues.jsp. We can see that there is 1 message under the “Messages Enqueued” column. 7/26/2017Ankit Lawaniya 15