Creating Simple transformation for an XML data having deep structure

Question

Hi
I have the following XML structure..
<REQUESTS>
  <REQUESTNAME>REQ123</REQUESTNAME>
  <REQUESTID>1234</REQUESTID>
  <CITY>NEWYORK</CITY>
  <ZIPCODE>123456</ZIPCODE>
<COMPETENCIES>
   <LANGUAGES>
     <COMPETENCY>
        <SKILL>SAP</SKILL>
        <PROFICIENCY>TEST</PROFICIENCY>
        <SKILL>JAVA</SKILL>
        <PROFICIENCY>TEST123</PROFICIENCY>
(here we may have any number of records for SKILL&PROFICIENCY...)*
</COMPETENCIES>
   </LANGUAGES>
     </COMPETENCY>
</REQUESTS>
My requirement is to read the above data from an URL and push it into an internal table.
For this I'm trying to use Simple transformations but I'm facing difficulty in doing this.
Can you pl. guide me how to create the transformation and the corresponding code for this.
Best Regards
Anil

Answer 1

Hi
Here is the actual XML structure..
- <REQUEST>
  <COUNTRY />
  <ADDRESS />
  <CITY />
  <ASSIGNTYPE>IP</ASSIGNTYPE>
  <CHARGETYPE>CH</CHARGETYPE>
  <REMOTEALLOWED>Y</REMOTEALLOWED>
  <SALESRATE>EUR</SALESRATE>
  <SECURITY>NO</SECURITY>
  <TRAVELEXP>Y</TRAVELEXP>
  <MAXDAILYRATE />
  <CREDENTIALS />
  <EXPENDDATE />
  <NEWENDDATE />
  <NEWEXPENDDATE />
  <REPLYBEFORE>2010-11-30</REPLYBEFORE>
  <STARTDATE>2010-01-01</STARTDATE>
  <ENDDATE>2010-12-31</ENDDATE>
  <GCMTYPE>PM</GCMTYPE>
  <GCMLEVELFROM>02</GCMLEVELFROM>
  <GCMLEVELTO>08</GCMLEVELTO>
  <LOCATION>FR43</LOCATION>
  <MOBILITY>04</MOBILITY>
  <ZIPCODE />
- <COMPETENCIES>
- <LANGUAGES>
- <COMPETENCY>
  <SKILL>01106034</SKILL>
  <PROFICIENCY>005103</PROFICIENCY>
  </COMPETENCY>
  </LANGUAGES>
- <ACTIVITIES>
- <COMPETENCY>
  <SKILL>01105500</SKILL>                            
  <PROFICIENCY>004507</PROFICIENCY>
  </COMPETENCY>
  </ACTIVITIES>
- <BUSINESS>
- <COMPETENCY>
  <SKILL>01105729</SKILL>
  <PROFICIENCY>004605</PROFICIENCY>
  </COMPETENCY>
  </BUSINESS>
- <INDUSTRIES>
- <COMPETENCY>
  <SKILL>01105491</SKILL>
  <PROFICIENCY>004901</PROFICIENCY>
  </COMPETENCY>
  </INDUSTRIES>
- <METHODS>
- <COMPETENCY>
  <SKILL>01105591</SKILL>
  <PROFICIENCY>004805</PROFICIENCY>
  </COMPETENCY>
  </METHODS>
- <OFFERINGS>
- <COMPETENCY>
  <SKILL>01105840</SKILL>
  <PROFICIENCY>005002</PROFICIENCY>
  </COMPETENCY>
  </OFFERINGS>
- <PRODUCTS>
- <COMPETENCY>
  <SKILL>01107304</SKILL>
  <PROFICIENCY>004703</PROFICIENCY>
  </COMPETENCY>
  </PRODUCTS>
  </COMPETENCIES>
  <CANDIDATES />
  </REQUEST>
Here..... <SKILL></SKILL>   <PROFICIENCY></PROFICIENCY>  can be more than 1 entry...
For this I have created a simple transformation like below..
I have used the tcode 'XSLT_TOOL '..
In SE11 I have created a Table type 'ZCOMPETENCIES' which is having  a line type 'ZLANGS'.
ZLANGS is a structure which has another structure called 'ZCOMPETENCY' and this 'ZCOMPETENCY' is having fields
SKILL & PROFICIENCY.
I have used the wizard button which u can find  'XSLT_TOOL '.. and provided the table type ZCOMPETENCIES'  and it has automatically created the following transformation...
<?sap.transform simple?>
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates" xmlns:ddic="http://www.sap.com/abapxml/types/dictionary" xmlns:def="http://www.sap.com/abapxml/types/defined">
  <tt:root name="ROOT" type="?"/>
  <tt:root name="COMPETENCIES" type="ddic:ZCOMPETENCIES"/>
  <tt:template>
    <COMPETENCIES>
      <tt:loop ref=".COMPETENCIES">
        <ZLANGS>
          <COMPETENCY>
            <SKILL tt:value-ref="COMPETENCY.SKILL"/>
            <PROF tt:value-ref="COMPETENCY.PROF"/>
          </COMPETENCY>
        </ZLANGS>
      </tt:loop>
    </COMPETENCIES>
  </tt:template>
</tt:transform>
I have written following code to get the data
CALL METHOD cl_gui_frontend_services=>gui_upload
  EXPORTING
    filename                = gs_file
  CHANGING
    data_tab                = gt_itab
  EXCEPTIONS
    file_open_error         = 1
    file_read_error         = 2
    no_batch                = 3
    gui_refuse_filetransfer = 4
    invalid_type            = 5
    no_authority            = 6
    unknown_error           = 7
    bad_data_format         = 8
    header_not_allowed      = 9
    separator_not_allowed   = 10
    header_too_long         = 11
    unknown_dp_error        = 12
    access_denied           = 13
    dp_out_of_memory        = 14
    disk_full               = 15
    dp_timeout              = 16
    not_supported_by_gui    = 17
    error_no_gui            = 18
    OTHERS                  = 19.
IF sy-subrc <> 0.
  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
          WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
GET REFERENCE OF gt_person INTO gs_result_xml-value.
gs_result_xml-name = 'COMPETENCIES'.
APPEND gs_result_xml TO gt_result_xml.
TRY.
    CALL TRANSFORMATION ZTEST_TRAN
    SOURCE XML gt_itab
    RESULT (gt_result_xml).
  CATCH cx_root INTO gs_rif_ex.
    gs_var_text = gs_rif_ex->get_text( ).
    MESSAGE gs_var_text TYPE 'E'.
ENDTRY.
Please let me know if you need any further details..
Best Regards
Anil