keskiviikko 10. huhtikuuta 2013

Tutorial 1 part 37 - adding mediator

Adding mediator
We cannot wire the adapter directly to the added BPEL process because of namespace conflict. There is an “embedded ESB” component called mediator that can be used for doing data transformations, routing decisions etc. very easily.
So drag and drop the mediator to the canvas and wire the file interface to it. Next wire the mediator to the BPEL flow.

 The end result should look like this:


Next open the mediator and click on the icon that looks like cross-connect and its tooltip says: “Select and existing mapper file or create a new one”.

Select create new and press Ok.

You can open both sides to reveal the parameters that need to be mapped to each other. Notice the similarity of names.

You can drag one-by-one lines between elements but there is also a shortcut. Drag a line from FenceEvent on left to GeoEvent on right and the following dialog opens:

Select ok and you will see an automated mapping between all parameters.
If you see a for-each operation in the mapping, you’ve made a mistake and forgot to click the “File contains multiple messages” checkbox along the path of defining the file adapter.

Save all. Now we have completed our task and can test again.

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