Map Field names to target side

Question

Hi Gurus,
I have a critical Requiremnet where in i need to map the field names from Source structute to the target structure..
For Example:
My Source structure:                                                       
<matnr> 123</matnr>                                                          
<maktn>XYZ</maktn>
Expected Target structure:
<Node>
<Fieldname>matnr </DFieldname>
<Fieldvalue>123</Fieldvalue>
</Node>
<Node>
<Fieldname>maktn </DFieldname>
<Fieldvalue>XYZ</Fieldvalue>
</Node>
Any Blog on this is highly Appreciated.
Best regards,
Sainath Chutke
Edited by: Sainath Chutke on Feb 23, 2009 8:42 PM

Answer 1

Hi Sainath,
This is possible using graphical mapping with the help of UDF.
A simplified mapping will look like this:
For Fieldname
constant: MATNR --> useOneAsMany --> 1. UDF -
> Fieldname
MATNR --> removeContext --> /
MATNR --> removeContext --> /
constant: MAKTN --> useOneAsMany --> 2.
MATNR --> removeContext --> /
MATNR --> removeContext --> /
where 1 and 2 are the inputs to the UDF.
For Fieldvalue
MATNR --> removeContext --> 1. UDF --> Fieldvalue
MAKTN --> removeContext --> 2.
Note that you can eliminate the node removeContext just make sure that you set the context to the topmost level of the hierarchy.
The UDF that will be used is of context type: There are two input arguments, input1 and input2:
Here is the code:
StringBuffer e = new StringBuffer();
String b = null;
for (int a = 0; a<input1.length; a++){ e = e.append( "/" + input1[a]);}
for (int a = 0; a<input2.length; a++){ e = e.append( "/" + input2[a]);}
e = new StringBuffer(e.substring(1,e.length())); b = e.toString();
String c[] = b.split("/");
for (int a = 0; a<c.length; a++){result.addValue(c[a]);}
What this UDF does is to add the contexts of the input, it is also taken into consideration multiple occurrences of the MATNR and MAKTN e.g.
MATNR = 12,1234
MAKTN = XYW,XYZ
The output for Fieldname is MATNR,MATNR,MAKTN,MAKTN
The output for Fieldvalue is 12, 1234, XYW, XYZ
Hope this helps,