Converting an XML file with many hierarchy levels to ABAP format

By Subhashini Kolluri, IBM India

This example shows how we can convert an XML file with many hierarchy levels to ABAP format.  

Copy and paste the following code in notepad and save it as test.xml file.

Save the XML file which in desktop or some other path  

 <?xml version="1.0" encoding="UTF-8" ?> 
<ZEU_MATMAS03>
 <IDOC BEGIN="1">
  <EDI_DC40 SEGMENT="1">
   <DOCNUM>0000000000038491</DOCNUM> 
   <MESTYP>ZEU_MATMAS</MESTYP> 
  </EDI_DC40>
  <E1MARAM SEGMENT="1">
   <MSGFN>004</MSGFN> 
   <MATNR>000000000000010003</MATNR> 
   <E1MAKTM SEGMENT="1">
    <MSGFN>005</MSGFN> 
    <SPRAS>E</SPRAS> 
    <MAKTX>promo pack normal</MAKTX> 
    <SPRAS_ISO>EN</SPRAS_ISO> 
   </E1MAKTM>
  </E1MARAM>
 </IDOC>
</ZEU_MATMAS03>

Here we can see that the root node is ZEU_MATMAS03 which is the main structure containing all other structures.

It contains IDOC structure which in turn contains E1MARAM and EDI_DC40 structures within.

EDI_DC40 contains DOCNUM and MESTYP fields.

E1MARAM contains E1MAKTM structure and MSGFN and MATNR fields.  

In SAP we have to create corresponding structures to store this data from XML to ABAP.The main structure contains many deep structures.  

So in ABAP dictionary we first create the structure ZIDOC_TEST which contains Structures ZEDIDC40 and Z1EMARAM_TEST1.  

ZIDOC_TEST structure contains ZE1MARAM_TEST1 and ZEDIDC40 structures within.  

ZEDIDC40 contains DOCNUM and MESTYP fields.  

ZE1MARAM_TEST1 contains E1MAKTM structure and MSGFN and MATNR fields.

The structures Z1EMARAM_TEST1 and ZEDIDC40 are also created as shown in the below slides.  

This is the structure of ZEDIDC40 - Control record with fields DOCNUM and MESTYP..

The structure ZE1MARAM_TEST1 contains the following fields MSGFN and MATNR.Also a deep structure E1MAKTM.  

E1MAKTM Structure is a standard dictionary structure we are using directly with the fields MSGFN,SPRAS,MAKTX and SPRAS_ISO.

The following ABAP program converts the given input XML file to ABAP format.  

TYPE-POOLS abap.

*Input file contents as string.XML file path where we saved the file. *Here it is saved in desktop.

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