Unsorted Flat File into IDoc with multiple use of nodes

Question

Hi Experts!
I am facing a little problem. I have a source flat file for a classification where some fields appear several times.
My source flat file looks like this:
item1; field1a
item2; fieldA
item3; fieldxa
item1; field1b
as you can see the item1 exists twice (further appearances are also possible).
Now i have to map the flat file into an IDoc structure
My target IDoc looks like this
Header
-- node1
attribute1
-- node2
the "field1a" and "field1b" has to be mapped into the "attribute1" in "node1". "node1" has to be duplicated for each time an "item1" appears (.. and if item2, item3 etc. appears twice, three ... four times...).
So how can i reach it that the node1 will be duplicated automatically when an item appears twice or more times? I know that it could be possible to work with "SplitByValue"... but for this i need all item1 in an straight order.... but i dont have them in a correct order.
I am looking forward to your suggestions.
Thank you in advance.
Udo

Answer 1

Complex sorting is not or not easy possible with the grafical mapping tool.
Use a sequence mapping. The first mapping is a simple XSLT which does the sort. The second mapping works as usual.
I have an example XSLT which I used for a different purpose:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="/">
    <ORDERLIST>
      <xsl:for-each select="ORDERLIST/ITEM">
        <xsl:sort select="ID"/>
        <xsl:copy-of select="."/>
      </xsl:for-each>
    </ORDERLIST>
  </xsl:template>
</xsl:stylesheet>
Regards
Stefan