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Author's profile photo Javier Alcubilla Alcala

Http Sender Adapter. Using URL parameters in determination conditions

Hi colleagues

Recently I had the requirement to create an interface that needs to accept a Http request with some extra parameters, and I had to route a file to different folders depending on those parameters.

The PI’s environement is PI 7.31 Java Stack only so I had to create an integrated configuration with a Http (sender) adapter and N File (receiver) adapters.

At this point you could be thinking what could be the tricky thing in this “simple” scenario. Well, the “problem” is the use of the URL parameters set in the Http adapter and the ones that you want to use as condition in the receiver or interface determination.

The problem:

The sender adapter is an HTTP_AAE adapter with some URL parameters set:

sender1.JPG

In my interface we need to route based on Mailbox (URLParamOne)

So the condition defined in the integrated configuration was this one:

cond1.JPG

In the expression editor:

cond2.JPG

Once configured the conditions and the receivers, the simple scenario should be finished but….

When I began to test, one error went me crazy: Error: com.sap.aii.adapter.xi.routing.RoutingException: InterfaceDetermination did not yield any actual interface

The explanation:

What could be the problem if I have set the URLParamOne from the context and must be the same defined in the HTTP channel?

The problem is the NAMESPACE of this parameter

Analyzing the problem i found that the URL parameter came as http://sap.com/xi/XI/System (message trace, dynamic configuration):

<sap:Record namespace=”http://sap.com/xi/XI/System name=”URLParamOne>ROUTE1</sap:Record>

And as you can see defining the condition, the context object has the next namespace http://sap.com/xi/XI/System/HTTP_AAE

cond3.JPG

So, the parameter is not recognized and the routing raise an error.


The solution

Using the adapter module AF_Modules/DynamicConfigurationBean in HTTP sender adapter I could solve the problem making a basic variable change as follows:

module.JPG

As you can see, first I get the value from the URLParamOne | http://sap.com/xi/XI/System and store it in module.filename value, after that, i set the URLParamOne | http://sap.com/xi/XI/System/HTTP_AAE with that value.

Hope this blog helps, I went crazy with it

Regards

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      4 Comments
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      Author's profile photo Roberto Cantero
      Roberto Cantero

      Great post mate! 🙂

      Cheers,

      Roberto.

      Author's profile photo Former Member
      Former Member

      Nice one.

      Author's profile photo Atakan Köycü
      Atakan Köycü

      It help to me so much. Thank you.

      I went crazy with it to. help.sap.com says "The attribute for the adapter is http://sap.com/xi/XI/System/HTTP" but its not true for Http Sender response dynamic fields. Should be http://sap.com/xi/XI/System

      Author's profile photo Wilbert Karremans
      Wilbert Karremans

      Thank you, very useful.