The
previous article describes how FileGateway publishes its data transformation completion event. We will see in this article how another application consumes this event.
In this example, we will create a simple Oracle SOA 11g Application that contains a JMS listener and a file writer.
The use case
Trigger:
JMS Message arrives in FGW.FILEREADY topic.
Flow:
1. JMS adapter receives message.
2. Mediator component maps the input (JMS body) to the input of a File Adapter.
3. File adapter writes the JMS message body into a local file.
4. End of use case.
The Steps
1. Create an empty Oracle SOA 11g Application. Name it as DataLoader. Create a new project called WaitFile within DataLoader. Ensure the fileInfo.xsd created in the
previous article is included in this project.
Figure 1: Empty Oracle SOA Application in JDeveloper, with fileInfo.xsd
2. Configure the JMS Adapter
Double click on the composite.xml to open the composite editor. From the "Component Palette" on the right, drag the "JMS Adapter" into the "Exposed Services" pane of the composite editor.
Configure the following:
3. Configure the File Adapter
From the "Component Palette" on the right, drag the "File Adapter" into the "External Refereces" pane of the composite editor.
Configure the following:
- In Step 2 - Service name: WriteFileInfo
- In Step 3 - Select Define from operation and schema (specified later)
- In Step 4 - Operation Type: Write File, Operation Name: Write
- In Step 5 - Directory for Outgoing File (physical path): C:\. File Naming Convention (po_%SEQQ%.txt): fileInfo_%SEQ%.txt
- In Step 6 - Browse for fileInfo in the xsd file.WaitFile
- In Step 7 - Click Finish
4. Configure the Mediator
From the "Component Palette" on the right, drag the "Mediator" into the "Components" pane of the composite editor.
Configure the following:
- Name: Mediator1
- Template: Define Interface Later
- Click the OK button
5. Wiring the service, component and reference in the composite.
Figure 3: Wired service, component and reference
6. Configure the Mediator
Double-click the "Medialtor1" component to bring up the mapper. Create a new mapper file, accept the default file name.
Figure 4: Create new transformation map
Drag to map the entire source node (imp1:fileInfo) to target node (imp1:fileInfo)
Figure 5: Mapped source and target
7. Configure the JMS Module in Oracle SOA Admin Server console
Make sure your SOA Admin server is started for your domain. Point your browser to http://localhost:7001/console assuming your server runs locally.
Under the "Domain Structure" menu, click on the "Deployments" menu. Locate the "JmsAdapter" in the Deployments table. Click on the "JmsAdapter", the setting page of "JmsAdapter" is displayed.
Figure 6: Domain Structure -> Deployments
Instead of creating a new JMS connection pool, we will just modify the existing pool, for the sake of simplicity. You can always create your own connection pool dedicated to consuming messages from the FileGateway.
Click on the Configuration tab, then the Outbound Connection Pools sub-tab. Then click on the "eis/tibjmsDirect/Topic"
Figure 7: Outbound Connection Pool table
In the "Properties" tab of "eis/tibjmsDirect/Topic", enter the required parameter values for FactoryProperties, Password and Username, then click "Save"
Figure 8: Connection pool property configuration
You need to re-deploy the JmsAdapter for the change to be effective. The changes you have made will be stored in a deployment plan.
Back to the "Deployments" menu. Check the checkbox to the left of "JmsAdapter" and click the "Update" button at the top of the "Deployments" table. Re-deploy the application, create a new plan if necessary.
Figure 9: Update JmsAdapter deployment
Figure 10: Deployment plan
Figure 11: Deployment plan
8. Deploy the WaitFile SOA 11g application into the soa_server1. (assuming you have created a soa managed server)
Figure 12: WaitFile composite deployed
9. Start TIBCO EMS server (make sure you have carried out the steps described
in this article). Run FileGateway in TIBCO Designer test mode. A JMS message should be sent out as soon as the data transformation is completed.
10. Inspect the execution trail and instance information in the dashboard of WaitFile composite.
Figure 13: Dashboard
11. Inspect the File adapter output file in the output directory.
We configured the file adapter to output in c:\, so you should find a file "fileInfo.txt" under this folder. Open the file and inspect the content, you should get something like this.
EMP-OUT00A-20101013-10-21-56.XML
1646
2010-10-13T10:21:56.296+11:00
Voila, that is a proof of concept of how to connect to and consume JMS message of a TIBCO JMS topic from an Oracle SOA 11g Application.
Download the Oracle SOA 11g Application source code (JDeveloper project)
here.
Cheers,
