1. Developing SOA Applications with Oracle SOA Suite
  2. Sharing Functionality Across Service Components
  3. Working with Domain Value Maps
  4. Creating a Domain Value Map Use Case For Multiple Values
  5. How to Create the Multivalue Use Case
  6. Task 3: How to Create a File Adapter Service

Task 3: How to Create a File Adapter Service

After creating the domain value map, create a file adapter service named readFile to read the XML files from a directory.

Note:

Mediator may process the same file twice when run against Oracle RAC planned outages. This is because a file adapter is a non-XA compliant adapter. Therefore, when it participates in a global transaction, it may not follow the XA interface specification of processing each file only once.

To create a file adapter service:

  1. From the Components window, select SOA.
  2. Select File Adapter and drag it to the Exposed Services swimlane.
  3. If the Adapter Configuration wizard Welcome page appears, click Next.

    The Service Name page appears.

  4. In the Service Name field, enter readFile and then click Next.

    The Adapter Interface page appears.

  5. Click Define from operation and schema (specified later) and then click Next.

    The Operation page appears.

  6. In the Operation Type field, select Read File and then click Next.

    The File Directories page appears.

  7. In the Directory for Incoming Files (physical path) field, enter the directory from which you want to read the files.
  8. Click Next.

    The File Filtering page appears.

  9. In the Include Files with Name Pattern field, enter *.xml and then click Next.

    The File Polling page appears.

  10. Change the Polling Frequency field value to 1 second and then click Next.

    The Messages page appears.

  11. Click Search.

    The Type Chooser dialog appears.

  12. Click Import Schema File.

    The Import Schema File dialog appears.

  13. Click Search and select the input.xsd file in the Samples folder.
  14. Click OK.
  15. Expand the navigation tree to Type Explorer > Imported Schemas > input.xsd.
  16. Select Root-Element and click OK.
  17. Click Next.

    The Finish page appears.

  18. Click Finish.
  19. From the File menu, select Save All.

    Figure 45-21 shows the readFile service in the SOA Composite Editor.

    Figure 45-21 readFile Service in the SOA Composite Editor

    Description of Figure 45-21 follows
    Description of "Figure 45-21 readFile Service in the SOA Composite Editor"