Oracle BPEL Header Interceptor

I saw that BPEL interceptor has been only documented as header handler, I found it can do much more than just handling Headers. It is perfect interceptor and works just like Servlet Filter. It is sensitive part of code, because interceptor is called synchronously from main BPEL process. Any uncatched exception or time consuming delays in interceptor code will be propagated to main BPEL process.

OK, let's look at how to implement it:

We can register two different interceptor, one for request and one for response. I pretty much copied the initial part from documentation and enhance it for 10.1.3.x SOASuite. I created CustomHeaderHandler which implements HeaderHandler, and then I created two different classes InboundHandler and OutboundHandler which extends CustomHeaderHandler.

CustomHeaderHandler:

Here we can see invoke operation with Parternlink, Header, CallProperties. I have also written dumpProperties method which will dump all the properties from Map.

Here is InBound and OutBound interceptor which merely just calls CustomHedaerHandler's invoke method:

InboundHandler

OutboundHandler

I compiled all three classes and put it in bpel/system/classes directory and restarted SOASuite. I created couple of BPEL Processes to test my interceptors, I put following lines of code in bpel.xml to activate the interceptors:

Now if I look into soasuite/opmn/log/default_group~oc4j_soa~default_group~1.log, I can see the intercepted log:

Source code can be downloaded at here.