Issue in Download file - If the file name is same

Question

Hi Experts,
I have a requirement to download the company code hierarchy data into a file. On selection screen I am giving the file path along with the file name If I run the report it is downloading the data into the particular file in the file path this is expected result but if i am running the report with same filename which is already exists in the same path then instead of replacing the file with new data it is appending the data to that file.
But my expected result is: If the file name is same, file should be replaced with the Current Data instead of Appending the file.
And this issue is happening for the file formats TXT and CSV and also this issue is happening only when i am saving to the local drive.
I executed  the report by giving the file name Eg: " XXXX.xls" extension even in this case the records getting replaced with the new data, problem is when the file extension is with TXT and CSV formats.
FYI... to download the data i am using the below funtion module and i am passing the below parameters: Please correct me if i am wrong.
   CALL FUNCTION 'GUI_DOWNLOAD'
      EXPORTING
       FILENAME                        = G_LFILE
       FILETYPE                        = G_FILETYPE
       APPEND                          = 'X'
       WRITE_FIELD_SEPARATOR           = GC_FIELDSEP    " Passing X
       TRUNC_TRAILING_BLANKS           = GC_TRUNCBLNKS " Passing X
       DAT_MODE                        = GC_DATMODE                 "Passing X
       CODEPAGE                        = G_LCODEPAGE
      TABLES
        DATA_TAB                        = GT_ITAB_HIER1
     EXCEPTIONS
       FILE_WRITE_ERROR                = 1
       NO_BATCH                        = 2
       GUI_REFUSE_FILETRANSFER         = 3
       INVALID_TYPE                    = 4
       NO_AUTHORITY                    = 5
       UNKNOWN_ERROR                   = 6
       HEADER_NOT_ALLOWED              = 7
       SEPARATOR_NOT_ALLOWED           = 8
       FILESIZE_NOT_ALLOWED            = 9
       HEADER_TOO_LONG                 = 10
       DP_ERROR_CREATE                 = 11
       DP_ERROR_SEND                   = 12
       DP_ERROR_WRITE                  = 13
       UNKNOWN_DP_ERROR                = 14
       ACCESS_DENIED                   = 15
       DP_OUT_OF_MEMORY                = 16
       DISK_FULL                       = 17
       DP_TIMEOUT                      = 18
       FILE_NOT_FOUND                  = 19
       DATAPROVIDER_EXCEPTION          = 20
       CONTROL_FLUSH_ERROR             = 21
       OTHERS                          = 22
    IF SY-SUBRC <> 0.
      G_FNAME = G_LFILE.
      MESSAGE E043(ZFI) WITH G_FNAME.
    ENDIF.
Can any one please provide me the solution.
Thanks in advance.
Koushik

Answer 1

Hi all,
Issue got resolve. I have used the class CL_GUI_FRONTEND_SERVICES
and the methods file_delete and file_exist. below is the sample code :
  1)  Write the below code in subroutine “PEFORM FILL_DATA_FILE” to check the given file exists in the directory or not.
DATA: lv_FILENAME TYPE STRING,
           lv_RESULT  TYPE C,
           lv_rc TYPE i.
           lv_FILENAME = g_lfile.
    CALL METHOD CL_GUI_FRONTEND_SERVICES=>FILE_EXIST
      EXPORTING
           FILE                 = lv_FILENAME
      RECEIVING
           RESULT               = lv_RESULT
      EXCEPTIONS
           CNTL_ERROR                          = 1
           ERROR_NO_GUI                     = 2
           WRONG_PARAMETER          = 3
           NOT_SUPPORTED_BY_GUI  = 4
           OTHERS                                   = 5.
    IF lv_RESULT = 'X'.
      lV_RC = '1'.
    ELSE.
      lV_RC = '0'.
    ENDIF.
  2)  If the given file is exists in the directory(or in the given file path) delete or modify that file with the current data
      for that add the below code :
         IF lv_rc = 1.
CALL METHOD CL_GUI_FRONTEND_SERVICES=>FILE_DELETE
      EXPORTING
        FILENAME             = lv_FILENAME
        CHANGING
        RC                           = lv_RC
      EXCEPTIONS
        FILE_DELETE_FAILED   = 1
        CNTL_ERROR                = 2
        ERROR_NO_GUI           = 3
        FILE_NOT_FOUND       = 4
        ACCESS_DENIED           = 5
        UNKNOWN_ERROR      = 6
        NOT_SUPPORTED_BY_GUI = 7
        WRONG_PARAMETER      = 8
      OTHERS               = 9.
    IF SY-SUBRC <> 0.
       *           MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
       *           WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.       
   ENDIF.
   ENDIF.
Thanks,
koushik