File Path Validation

Question

Hi,
I have to move my data from my program to a flat file on the Application/ Presentation Server. Now i need to validate whether the path provided by user is a valid one or not.
For eg. If the User enter \usr\sap\ in the presentation server path. The file shd not be saved there instead the user shd get a message to give the correct file path.
And in case of Application Server if the user enters c:\temp it shd not accept. Also if the user gives some random value ksdjfhakf.txt in the file path it shd not take.
Please let me know how can we acheive this.
Regards,
FS

Answer 1

Hi
Validating file path on the Presentation Server
To validate a file path on the presentation server, use the method directory_exist available in the class cl_gui_frontend_services.
Demo program to validate the file path on the presentation server:
REPORT  zdir_test.
TYPE-POOLS: abap.
DATA: v_dir TYPE string.
DATA: v_bol TYPE abap_bool.
v_dir = 'c:\sap\'.
CALL METHOD cl_gui_frontend_services=>directory_exist
  EXPORTING
    directory            = v_dir
  RECEIVING
    result               = v_bol
  EXCEPTIONS
    cntl_error           = 1
    error_no_gui         = 2
    wrong_parameter      = 3
    not_supported_by_gui = 4
    OTHERS               = 5.IF NOT v_bol IS INITIAL.
  WRITE:/ 'Directory exists.'.
ELSE.
  WRITE:/ 'Directory does not exist.'.
ENDIF.
PLZ reward if helpful,
Thanks,
S.Gangi reddy.