OAG - inserting extra block in request XML

Question

Hi,
I've a requirement to add/insert below error block under <mainXMLblock> once request XML reaches OAG. I've checked "ADD XML Node" filter, but it allows to add node by node not the complete error block. Could you please suggest some options. i thought of using "set message" filter but i need incoming XML (request xml) + error block to be added, not sure who to do that in "set Message" filter.
<mainXMLblock>
          <Error>
            <ErrorCode>
                <Type>ERROR</Type>
                <ErrorSubCode>
                    <Value>
                        <Namespace>Namespace1</Namespace>
                        <Value>Value4</Value>
                    </Value>
                </ErrorSubCode>
             </Error>
</mainXMLBlock>
Regards,
Ganesh

Answer 1

Hi,
You should can add the whole block to the mainXMLBlock in one go with the Add XML Node filter. But the filter is a bit tricky..
Here are a few things to watch out for.
1. Namespaces
If there is a namespace in for example mainXMLBlock you have to add this to the XML you are trying to insert. For example:
<s:mainXMLblock xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
     <s:someContent></s:someContent>
</s:mainXMLBlock>
For the Add XML Node when you adding the XML content you must include the namespace above.
Node Type: Element
Node Content: <Error xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><ErrorCode><Type>ERROR</Type><ErrorSubCode><Value><Namespace>Namespace1</Namespace><Value>Value4</Value></Value></ErrorSubCode></Error>
2. Existing header.
Unfortunately the Add XML Node filter can't automatically handle if the request may have the XML Node you are trying to add. So if you have a case where the node might exist already you have to handle this seperatly and have two Add XML Node, one where you just append and the other to replace for example.
Cheers,
Stefan