Use ODI with JMS Queue

Question

I'm new user in ODI and also JMS. I successfuly use odi to integrate data from two oracle database applications. I'm trying to integrate applications using JMS Queues (or Topics) and I failed to create odi "data server" for this technology. Can someone help me to do this or give me a sample to follow it?
thanks.

Answer 1

Hi there,
You can actually create 2 different types of connections to a JMS Queue or Topic. Flat or XML. The simplest to start with is flat. This will basically cause ODI to view the contents of the queue as simple flat file data. Note, this is a bit advanced use of ODI, so I would perhaps go through connecting to an RDBMS first before walking through this. It will make more sense.
To set this up, you will need to:
1. Copy the necessary client files from OC4J, place them in the <ODI_HOME>/oracledi/drivers directory and restart ODI. The files you need are:
- <OC4J_HOME>/j2ee/home/oc4jclient.jar
- <OC4J_HOME>/j2ee/home/lib/javax77.jar
- <OC4J_HOME>/j2ee/home/lib/jta.jar
Sop copy those files and restart ODI.
2. Create a physical connection (Topology Application/Physical Architecture/Technologies -> right click JMS Queues and select "Insert Data Server")
3. In the Description tab, simpl fill in the Name field.
4. In the JNDI tab , fille in the following:
- JNDI Authentication - Simple
- JNDI User: application user - this is the equivalent of javax.naming.Context.SECURITY_PRINCIPAL
- Password: application password - this is the equivalent of javax.naming.Context.SECURITY_CREDENTIALS
- JNDI Driver: This is the equivalent of javax.naming.Context.INITIAL_CONTEXT_FACTORY, so enter com.evermind.server.rmi.RMIInitialContextFactory
- JNDI Url: This is the equivalent of javax.naming.Context.PROVIDER_URL, so put in ormi://<hostname>[:<port>]/<application>. For instance, with the basic OC4J install, I put in ormi://localhost/default.
- JNDI Resource: This is the JNDI lookup key for your Queue Connection factory. For example, for the default OC4J installation, I put in jms/QueueConnectionFactory
5. Click the Test button and click OK in the window that pops up. You should get a message box saying that your connection was successful.
6. Click Apply or OK and a new window will pop up. In this window, go to the Context tab and click the Add button and in the row that appears, click on the right most field (it says <Undefined> and replace <undefined> with a logical name for your connection. Hit Enter and click OK)
7. You've now connected to the Queue, to create the Queue object in ODI, go to the Designer window, go to models and create a new model.
8. Set the name to whatever makes sense to you. Set the technology to JMS Queue and the Logical Schema to the logical connection name you created in step 6. In the Reverse tab, select Global from the Context dropdown menu.
9. Click OK. You now have a container for any Queues that are in this connection.
10. To point to the queue, right click your new model and select Insert Datastore.
11. In the new window, name your datastore whatever you'd like. Set the resource name to the JNDI resource name for the queue (for example, with the default OC4J configuration, you could set this to jms/demoQueue.
12. In the Files tab, set the File Format to fixed, and set the record separator to Windows or Unix (it doesn't really matter which one you pick)
13. In the Columns tab, click the add button to add a column. Name the column something like DATA and set is to a String of size 1000.
14. Click OK. You'll now be able to right click this new datastore and view data, granted in a very simple format. You can create a more complex flat file structure if you' like but this gives you a quick and easy to view the contents of the queue.
I'd suggest trying to connect this way, post if you were successful and I will then post how to connect to an XML structured queue (it's a little teenie bit different)