OSB 11G xsl/xquery question in Proxy

Question

OSB 11G
In Proxy, I have to invoke a business service which has 3 operations
I need to use response of first 2 operations,as request to third operation along with some input xml to OSB Proxy.
customer, group, severity are hard coded.(which will be input to OSB)
How do I add/insert response from op1 after <string>customer</string> ??
and response from op2 after <string>group</string> . ??
<InvokecreateRequest_InputVariable>
<part name="parameters" >
<createRequest>
<sid>1959439747</sid> // is resp from operation1, which is request to operations3
<creatorHandle/>
*<attrVals>* // this is array of string
<string>customer</string>
<string>cnt:08DF89FC07516A41B228587DBE75B6A7</string> //resp from op1, that has to be request to op3
<string>group</string>
<string>B79AAF63D870F845980A</string> //input to OSB
<string>severity</string>
<string>2</string> //input to OSB
*</attrVals>*
<propertyValues>
<string/>
</propertyValues>
<template/>
<attributes>
<string>persistent_id</string>
</attributes>
</createRequest>
</part>
</InvokecreateRequest_InputVariable>
Also, should I use assign or insert in Proxy ??

Answer 1

Not sure exactly what you need, but here is a basic layout of what you need to do.
Make a service callout to the first operation and save the response in a variable, for ex $resOne
Then make a service callout to the second operation ans save the response in a variable for ex $resTwo.
Now use a replace or assign action to create the request for the third operation:
If you are using a Route action on Route node to call the third operation, you should use a replace action and replace the contents of $body with the XML content as needed. If you are going to use another service callout, then you should use an assign to create a request variable.
In either case, this is what your XQuery should look like:
<InvokecreateRequest_InputVariable>
<part name="parameters" >
<createRequest>
<sid>{$resOne/ns:ElementName/ns:SID/text()}</sid>     // Here you will populate value from $resOne using a correct XPath
<creatorHandle/>
<attrVals>
<string>customer</string>
<string>cnt:08DF89FC07516A41B228587DBE75B6A7</string>
{$resOne}    // here you are inserting the complete response from Operation one
<string>group</string>
{{$resTwo}    // here you are inserting the complete response from Operation Two, You can choose to populate these values separately inside variables like for SID above.
<string>B79AAF63D870F845980A</string>
<string>severity</string>
<string>2</string> //input to OSB
</attrVals>
<propertyValues>
<string/>
</propertyValues>
<template/>
<attributes>
<string>persistent_id</string>
</attributes>
</createRequest>
</part>
</InvokecreateRequest_InputVariable>