Send pdf file to workflow through web dynpro.

Question

Hi All,
I have a web dynpro component, with this component i am raising a request, which will go to multiple level of approvals(for this triggering workflow from web dynpro).
Now i want to send a pdf file as an attachment to approvers work items.
For this i have used File Upload UI element, and i have binded data property of this upload UI element with an attribute of type Xstring.
Now can you please help me to send this file to workflow.
I am able to send a pdf file as an attachment through executable report (SE38), but same functionality is not working from web dynpro.
Code used in executable report is as below:
DATA: t_data_tab TYPE TABLE OF x255,
bin_size TYPE i,
buffer_x TYPE xstring,
buffer_zip TYPE xstring,
filename TYPE string VALUE 'C:\Documents and Settings\My Documents\Downloads\IT.pdf'.
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
filename                      = filename
filetype                      = 'BIN'
IMPORTING
filelength                    = bin_size
  HEADER                        =
TABLES
data_tab                      = t_data_tab.
**get xstring
CALL FUNCTION 'SCMS_BINARY_TO_XSTRING'
  EXPORTING
    input_length = bin_size
  IMPORTING
    buffer       = buffer_x
  TABLES
    binary_tab   = t_data_tab.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ZSWR_ATT_HEADER-FILE_TYPE = 'B'.
ZSWR_ATT_HEADER-FILE_NAME = 'FORM-407'.
ZSWR_ATT_HEADER-FILE_EXTENSION = 'PDF'.
ZSWR_ATT_HEADER-LANGUAGE = 'EN'.
WORKITEMID = '000000401208'.
CALL FUNCTION 'SAP_WAPI_ATTACHMENT_ADD'
  EXPORTING
    WORKITEM_ID          = WORKITEMID
    ATT_HEADER           = ZSWR_ATT_HEADER
  ATT_TXT              =
    ATT_BIN              = buffer_x
   DOCUMENT_OWNER       = SY-UNAME
   LANGUAGE             = SY-LANGU
   DO_COMMIT            = 'X'
IMPORTING
  RETURN_CODE          =
   ATT_ID               = ZSWR_ATT_ID
TABLES
  MESSAGE_LINES        = SWR_MESSAG
*MESSAGE_STRUCT       =
if sy-subrc = 0.
else.
endif.
But function "GUI_UPLOAD" is not working in web dynpro.
Regards,
Amar

Answer 1

HI,
Try out this code :
FileInputStream is = new FileInputStream(file);
      long length = file.length();
      byte[] bytes = new byte[(int)length];
      long bytesRead = is.read(bytes);
      if (bytesRead < length)
       throw new IOException("Could not completely read file "+file.getName());
      is.close();
element.setDocumentContent(bytes);
Create a context attribute of binary type and assign the read data to it and bind the dataSource property of your File Upload and Download properties to this context Attribute.
Regards
Sid