Home > Oracle, weblogic > Deploy the third application – includes Elastic Java Message Service Configuration(Part -5-)

Deploy the third application – includes Elastic Java Message Service Configuration(Part -5-)

This version of the application has a Java Message Service (JMS) producer. Another tab is introduced into the application that will allow you to send JMS messages. This tab also contains a “table of processed messages”, the browser displays the messages that were processed by the message driven bean. The Enterprise Application that we will deploy later has the JMS Message Driven Bean in, this bean reads the

  1. At this point you can restart your managed servers.

Click on View changes and restart in Change Center and select Restart Checklist tab then check the box near to both managed servers and click on Restart.

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  1. Click on ‘Lock & Edit’. Deploy the application JMSProducer-1.0.war to the wlsdevCluster, you can find this at:

/u01/content/weblogic-innovation-seminars/WInS_Demos/weblogic-basics/lab3

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You would have to activate the changes and also ensure that the application begins servicing requests.

  1. Make sure the application is running and working correctly by going to URL: http://localhost:7002/JMSProducer/

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We will now use the WebLogic console to configure JMS, this is performed under Services / Messaging/JMS Servers. See screenshot below:

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  1. Click on ‘Lock & Edit’. Create a JMS server by clicking New, using the name

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Click Create a New Store. Use the Type: File Store, like in the screenshot below:

And Click Next.

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  1. Use the following values in the next screen:

Name = cluster

Target to wlsdevCluster

Directory = /u01/projects/wlsdevday/jmsjta

Click OK

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Activate the changes. Then click on ‘Lock & Edit’ again. This time the ‘Persistent Store’ dropdown would be refreshed to include ‘cluster’ Select the Persistent store that you just created as per the screen shot below:

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Click Next.

Target the JMS Server to wlsdevCluster.

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Click Finish.

  1. Activate your changes, and your JMS Server should look like this:

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  1. We are now going to create a JMS Module to hold our Connection Factory and Queue.

To do this, go back Services. Click on ‘Lock & Edit’

Select JMS Modules

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Create a new JMS Module

Note: A JMS Module and Subdeployment can be used to group resources, including queue and topic destinations, connection factories, JMS templates, destination sort keys, destination quota, distributed destinations, foreign servers, and store-and-forward parameters. Consider how much easier it is to manage and deploy using a Module and Subdeployments rather than remembering the relationships between the JMS resources you are creating and their targeting.

Call the JMS Module jmsDevDayModule.

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Click Next

Now target the module to the cluster.

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Check the box next to Would you like to add resources to this JMS system module?

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And click Finish.

On activation of changes, you should now see a screen like the one below

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Click on ‘Lock & Edit’ again and then click New to add artifacts to the module.

Select the Connection Factory radio button and click Next.

 

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Enter the following information in the next screen:

Connection Name:                              DevDayCF

Connection Factory JNDI name:          DevDayCF

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Click Next

Click on the Advanced Targeting (all will become clear later!)

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Click on Create a new Subdeployment

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Enter the following information in the next screen:

Name: DevDaySub

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Click OK.

Target the subdeployment to JMS Server created.

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Click Finish.

Activate Changes.

Now we need to create a queue in the JMS Module, this Queue will be a Distributed Destination, and this means the queue will run across the whole cluster.

Click on ‘Lock & Edit’ again. Click New.

Check the Distributed Queue radio button and click Next.

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On the next screen enter the following information:

Queue Name:              DevDayQueue

Queue JNDI name:      DevDayQueue

Make sure Destination Type is Uniform.

Your distributed queue configuration should look like below:

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Click Next

Click Advanced Targeting, and choose the Subdeployment created earlier (DevDaySub)

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Click Finish

Activate your changes.

We now need to deploy the JMS Consumer JAR. Follow the same procedure as before to deploy the application. You’ll find the application here:

/u01/content/weblogic-innovation-seminars/WInS_Demos/weblogic-basics/lab3

The application is called EJBReceiver-1.0.jar (use the knowledge you have gained on the Developer Day so far, to deploy the application to wlsdevCluster).Dont forget to activate the changes and start the application to service all requests.

  1. Open application window in browser and type any message and click in Send Message.

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Again send a message.

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Open two terminal and run the following command in both terminal. One terminal will show the log detail of wlsdevManaged-1 and another will show the log of wlsdevManaged-2.

tail -f /u01/projects/wlsdevday/domains/wlsdevdayDomain/servers/wlsdevManaged-1/logs/wlsdevManaged-1.out

tail -f /u01/projects/wlsdevday/domains/wlsdevdayDomain/servers/wlsdevManaged-2/logs/wlsdevManaged-2.out

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As you see we have distributed queue, so our messages is processed by both managed server uniformly. Each time we send a new message it is processed uniformly by managed server.

Now it is time to clean-up. Click on Lock & Edit, stop and then delete the applications (ClustWLSessionSampleLBApp, JMSProducer-1.0 and EJBReceiver-1.0). Activate the changes finally.

Stop all the managed server instances. Ensure that only the AdminServer is up and running.

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