Proxy to File

Question

Hi eXperts,
   I am developing an ABAP Proxy scenario where I have to get data from the Internal table and then send to a Legasy system as a FLAT FILE.
I have developed a sample code and providing in SDN to get me corrected if any errors.
Proxy to File Data Structure.
DT_S                               
   ROOT     1-un
         SI      1-1
         S2     1-1
         S3     1-1
MT_S
MI_S
Client Proxy Structure
^Class ZXX_CO_MI_S
     ^METHOD EXECUTE_ASYNCHRONOUS
          ^IMPORTING   OUTPUT                            ZXX_MT_S
                ^MT_S                                               ZXX_DT_S
                    ^ROOT
                         S1       STRING
                         S2     STRING                                              
                         S3     STRING
ZProgram. 
Tables : lfa1.     
Parameters : P_Date type lfa1-aedat.
Types for export parameters.
DATA : Pur_order type Zxx_mt_s.
*For calling class and exceptions.
Data : client_proxy type ref to ZXX_CO_MI_S,
           Sys_exception  type ref to CX_AI_SYSTEM_FAULT,
           APPL_Exception type ref to AI_APPLICATION_FAULT.
Data : Begin of it_out occurs 0,
                Lifnr like lfa1-lifnr,
                Name1 like lfa1-name1,
                Land1 like lfa1-land1,
            End of it_itab.
Select lifnr, name1, land1 from lfa1 into table it_itab where aedat = p_date.
Loop at it_itab.
        Pur_order-mt_s-root-s1 = it_itab-lifnr.
        Pur_order-mt_s-root-s2 = it_itab-name.1
        Pur_order-mt_s-root-s3 = it_itab-land1.
   Clear it_itab.
Endloop.
*Create Proxy object and call method.
CREATE OBJECT CLIENT_PROXY().
TRY
CALL METHOD CLIENT_PROXY -> EXECUTE_ASYCHRONOUS
        EXPORTING
              OUTPUT = PUR_ORDER.
If sy-subrc = 0.
Write: / ‘Method called successfully.’
Else.
Write: / ‘Method called failed.’
Endif.
*exception handling.
CATCH CX_AI_SYSTEM_FAULT   INTO   SYS_EXCEPTION.
Write : / ‘System fault encountered.’
Write : / SYS_EXCEPTION -> ERROR TEXT.
RETURN.
CATCH CX_AI_APPLICATION_FAULT   INTO   APPL_EXCEPTION.
Write : / ‘Application fault encountered.’
RETURN.
ENDTRY.
COMMIT WORK.
Please Very Urgent.
thanks in advance...

Answer 1

u r not passing the itab data to proxy.
pass the data to proxy before calling method..
client_proxy-MT_S ZXX_DT_S-ROOT[] = it_tab[].
*Create Proxy object and call method.
CREATE OBJECT CLIENT_PROXY().
TRY
CALL METHOD CLIENT_PROXY -> EXECUTE_ASYCHRONOUS
EXPORTING
OUTPUT = PUR_ORDER.
If sy-subrc = 0.
Write: / ‘Method called successfully.’
Else.
Write: / ‘Method called failed.’
Endif.
*exception handling.
CATCH CX_AI_SYSTEM_FAULT INTO SYS_EXCEPTION.
Write : / ‘System fault encountered.’
Write : / SYS_EXCEPTION -> ERROR TEXT.
RETURN.
CATCH CX_AI_APPLICATION_FAULT INTO APPL_EXCEPTION.
Write : / ‘Application fault encountered.’
RETURN.
ENDTRY.
COMMIT WORK.
Please Very Urgent.
thanks in advance...