Store pdf from ArchiveLink (binary) down to Netweaver file system

Question

Hello!
I have a problem: I need to extract a pdf-file which is stored in table TOA01 in binary format. The pdf should be generated and stored into a pdf-file in the file system of the Netweaver application server.
The main problem: Whenever I extract the data from the table and write it down to a file, the data in the pdf-file is corrupted. I tried all kinds of convertation routines (OFT to Binary, OTF to XString, Binary to XString,...)
Can anybody help me with my problem? I need a pdf from the ArchiveLink table as a file on the filesystem.
Thank you for your help!
Best regards,
Markus

Answer 1

Hello Otto!
thanks for your help. I compared the input- und the output-data now and discovered, that the data is identically. The problem which causes my problem, lies in the writing of the data into the file by dataset.
First, I extract my pdf binary data from database table with the following function module.
CALL FUNCTION 'SCMS_AO_TABLE_GET'
        EXPORTING
          arc_id       = ls_toa01-archiv_id
          doc_id       = ls_toa01-arc_doc_id
          comp_id      = 'data'
        IMPORTING
          length       = filesize
        TABLES
          data         = lt_data
        EXCEPTIONS
          error_http   = 1
          error_archiv = 2
          error_kernel = 3
          error_config = 4
          OTHERS       = 5.
      IF sy-subrc <> 0.
        RAISE error_retrieving_file.
      ENDIF.
The result of this operation is stored in lt_data and seems to be correct. I compared the filesize of a pdf which I downloaded from GUI and lt_data. The size is exactly the same amount of bytes.
This is the coding part which doesn't work properliy is the following:
      OPEN DATASET lv_pdf FOR OUTPUT IN BINARY MODE.
      IF sy-subrc = 0.
      LOOP AT lt_data INTO ls_data.
        transfer ls_data TO lv_pdf.
      ENDLOOP.
      ELSE.
        RAISE error_writing_file.
      ENDIF.
      CLOSE DATASET lv_pdf.
When the data is written into the dataset, the resulting file is corrupted in a certain way. I compared the binary content of both files, the correct one and the file created with the dataset part and discovered, that the data is identically. Only some line breaks are different. The result of this little differences is a blank pdf file instead of the correct one with text. Seems like really every single bit position has to be identically to the working pdf. If there is one space in the file too much or one line break, the pdf is corrupted.
Can anybody help me and describe how to create a pdf file out of an internal table?
Best regards,
Markus