Accessing jms in mule using groovy
Download as PPTX, PDF0 likes622 views
The document discusses how to filter messages from an ActiveMQ queue by JMS priority using Mule and Groovy. Specifically, it shows how to: 1. Send messages to an ActiveMQ queue with a specific JMS priority of 9 using Mule. 2. Configure a Mule flow to receive messages from the queue using a Groovy script to filter for messages with a JMS priority of 9. 3. Demonstrate that the Groovy script is correctly filtering to only consume the message from the queue with a JMS priority of 9.
Accessing jms in mule using groovy
- 1. By Anirban Sen Chowdhary
- 2. We have earlier seen how to integrate Mule and ActiveMQ . We have also seen how to send message to ActiveMQ queue from Mule with a specific JMS priority and to fetch messages from ActiveMQ queue filtering a particular JMS priority. Here we will see how to filter messages to ActiveMQ from Groovy script with a particular JMS priority
- 3. Yes, we can filter payload using Groovy script for the message from ActiveMQ queue with a particular JMS priority ….
- 5. Let’s consider we have a simple Mule flow as following:- Here in we will send messages to an ActiveMQ queue with a particular JMS priority. Let’s say our queue name be StudioOUT. So we will be sending messages to queue StudioOUT.
- 6. So, our Mule config will be as following:- You can see we are sending message to queue StudioOUT with JMS priority 9 using the following code :- <message-properties-transformer> <add-message-property key="Priority" value="9"/> </message-properties-transformer>
- 7. Now, we will test the flow by hitting url http://localhost:8081/test the message will be send to queue with JMS priority 9 :-
- 8. And, we will also check our ActiveMQ portal we will find the following :- You can see the message priority is 9 as we have configured JMS priority in our flow
- 9. Now let’s design a flow which will receive message from ActiveMQ queue and filter it by JMS priority using Groovy script:- You can see we have used Groovy Script to fetch the message from queue StudioOUT
- 10. Now our Mule config which is using Groovy script is as follow:-
- 11. Now if we start our application again we will get as follow:-
- 12. And you can see it has consumed the message from queue which has the JMS priority 9 :- Thus, you can see that we can also set the filter to consume message from ActiveMQ using Groovy
- 13. In my next slide I will bring some other techniques in Mule implementation . Hope you have enjoyed this simpler version. Keep sharing your knowledge and let our Mule community grow