File Content Conversion : Sender Channel

Question

Hi
  I am trying to do content conversion in the Sender Channel from a flat file to a XML.
My Target XML(message structure) looks like
<H1>
  <H2>
      <D>Detail Record</D>
      <L1>line</L1>
      <L1>line</L1>
  </H2>
  <H2>
      <D>Detail Record</D>
      <L1>line</L1>
      <L1>line</L1>
  </H2>
</H1>
Here the element <H2> is only needed to group <D> and the following <L1> elements of each new occurrence of <D>.
Now my problem is that the element <H2> is not getting created.
and the message after content conversion is looking as follows
<H1>
      <D>Detail Record</D>
      <L1>line</L1>
      <L1>line</L1>
      <D>Detail Record</D>
      <L1>line</L1>
      <L1>line</L1>
</H1>        
What should I do to get the desired result.

Answer 1

@Yes Bhavesh you  are right.
Hi Jai,
       I am trying the other way round.i.e from flat file to a XML message.As I said I was trying to do it for Sender Channel where is the after content conversion I want a XML file.The example is a what I framed out of my actual problem.
if flat file is as follows ,
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
DetailRecord1
Line1
Line2
Line3
DetailRecord2
Line4
Line5
then the XML must look like
<H1>
<H2>
<D>DetailRecord1</D>
<L1>Line1</L1>
<L1>Line2</L1>
<L1>Line3</L1>
</H2>
<H2>
<D>DetailRecord2</D>
<L1>Line4</L1>
<L1>Line5</L1>
</H2>
</H1>
I identify the different types records in the flat file
as follows,
Record starting with "Detail" is considered as <D> element
Record starting with "Line"  is considered as <L> element.
Hope I did clarify.