How to generate a file containing substructure of inboud interface

Question

Hi Experts,
     My outbound interface structure is like below:
     <?xml version="1.0" encoding="UTF-8"?>
<ns0:File_Input xmlns:ns0="http:/training/POC">
   <NUM1>1</NUM1>
   <NUM2>2</NUM2>
</ns0:File_Input>
    My inbound interface is like below:
   <?xml version="1.0" encoding="UTF-8"?>
<ns0:File_Output xmlns:ns0="http:/training/POC">
<Filename></Filename>
<Output>
<TOTAL>3</TOTAL>
</Output>
</ns0:File_Output>
This is FILE to FILE scenario.
The input (sender or outbound) file is XML. Output file is also XML but I want it to be:
<ns0:File_Output xmlns:ns0="http:/training/POC">
<Output>
<TOTAL>3</TOTAL>
</Output>
</ns0:File_Output>
I don't want the node <Filename> in the output XML file even though the inbound interface structure contains the node <Filename>.  The output file name is dynamic and hence I am using the node <Filename>. I am populating this node in message mapping.
I tried File content conversion but it is not generating the file. I gave the following conversion values.
What am I doing wrong?
File_Output.fieldSeparator = nl
Output.fieldSeparator = nl
TOTAL.fieldSeparator = nl
Please help!
Thanks
Gopal

Answer 1

hi Gopal,
First thing, as Spantaleoni has said, you can not avoid the quotes.
It has been clear in your case itself. That's the reason that you have nl input_20110523T104117Z.xmlnl3 in between your filename "input_20110523T104117Z.xml" and total value "3". Had you put quotes, 3 would have come in the next line itself and there would not be nl explicitly.
As for your actual issue, if it is an xml that you want at the receiver end, why are you using content conversion? As Shabarish has mentioned in his blog, dynamic configuration is always better than variable substition.
You can set the filename dynamically in a udf which is mapped to a mandatory field at the target side.
Write the  below code in a udf and map it to a mandatory node at the target end , like "Output" node in your case.
DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create(u201Chttp://sap.com/xi/XI/System/Fileu201D,u201CFileNameu201D);
String MyFileName = a + "_" + b +".xml";
conf.put(key, myFileName);
return "";
Regards,
Ninu