Convert tline into pdf file document in Java

Question

Dear ALL,
     I built a RFC FM to convert smartform into tline which including PDF data.
the Code:
   Converting to PDF Format
  DATA l_lines TYPE TABLE OF tline WITH HEADER LINE.
*  DATA l_lines1 TYPE TABLE OF solix_tab WITH HEADER LINE.
  DATA l_docs TYPE TABLE OF docs.
  DATA len TYPE i.
  CALL FUNCTION 'CONVERT_OTF_2_PDF'
    IMPORTING
      bin_filesize           = len
    TABLES
      otf                    = job_output_info-otfdata[]
      doctab_archive         = l_docs[]
      lines                  = l_lines[]                          "this inner table include pdf file data
    EXCEPTIONS
      err_conv_not_possible? = 1
      err_otf_mc_noendmarker = 2
      OTHERS                 = 3.
  *CALL METHOD cl_gui_frontend_services=>gui_download
  *  EXPORTING
  *   bin_filesize = len
  *    filename     = 'c:\pdf.pdf'
  *    filetype     = 'BIN'
  *   CHANGING
  *    data_tab     = l_lines[]"i_objbin[]
  *  EXCEPTIONS
  *    OTHERS       = 1.
"If i want to save it in my PC ,call this FM CALL METHOD cl_gui_frontend_services=>gui_download.
But i dont want to do it.I want to pass the parameter l_lines[] to java(web) by RFC, and convert to pdf file and show in java(web).
thanks
Freddy

Answer 1

Hi,
Update:
I have tested this and here is some code:
SAP:(I got the OTF from CALL FUNCTION 'PRINT_TEXT')
FORM get_pdf_data
  USING
    tdname TYPE thead-tdname
  CHANGING
    it_tline TYPE text_line_tab
    bin_file TYPE xstring .
  DATA: st_thead TYPE thead .
  DATA: it_lines TYPE tline_tab .
  st_thead-tdobject = 'TEXT' .
  st_thead-tdname   = tdname .
  st_thead-tdid     = 'ST' .
  st_thead-tdspras  = 'E'  .
  CALL FUNCTION 'READ_TEXT'
    EXPORTING
      id                      = st_thead-tdid
      language                = st_thead-tdspras
      name                    = st_thead-tdname
      object                  = st_thead-tdobject
    IMPORTING
      header                  = st_thead
    TABLES
      lines                   = it_lines
    EXCEPTIONS
      id                      = 1
      language                = 2
      name                    = 3
      not_found               = 4
      object                  = 5
      reference_check         = 6
      wrong_access_to_archive = 7
      OTHERS                  = 8.
  IF sy-subrc NE 0 .
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4 .
  ENDIF.
  DATA: it_otfdata TYPE otf_t_itcoo .
  DATA: st_options TYPE itcpo.
  st_options-tdgetotf = abap_true .
  CALL FUNCTION 'PRINT_TEXT'
    EXPORTING
      dialog                   = abap_false
      header                   = st_thead
      OPTIONS                  = st_options
    TABLES
      lines                    = it_lines
      otfdata                  = it_otfdata
    EXCEPTIONS
      canceled                 = 1
      device                   = 2
      form                     = 3
      OPTIONS                  = 4
      unclosed                 = 5
      unknown                  = 6
      format                   = 7
      textformat               = 8
      communication            = 9
      bad_pageformat_for_print = 10
      OTHERS                   = 11.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.
  DATA: it_otfdata_m TYPE otf_t_itcoo .
* "Merge pdf output demo"
  APPEND LINES OF it_otfdata TO it_otfdata_m .
* DATA: bin_file TYPE xstring .
  DATA: it_lines_dummy TYPE tline_tab .
  DATA: bin_filesize TYPE i .
  CALL FUNCTION 'CONVERT_OTF'
    EXPORTING
      format                = 'PDF'
    IMPORTING
      bin_file              = bin_file
      bin_filesize          = bin_filesize
    TABLES
      otf                   = it_otfdata_m
      lines                 = it_lines_dummy
    EXCEPTIONS
      err_max_linewidth     = 1
      err_format            = 2
      err_conv_not_possible = 3
      err_bad_otf           = 4
      OTHERS                = 5.
ENDFORM.                    " GET_PDF_DATA
Java:
final byte[] byteArray = function.getExportParameterList().getByteArray("BIN_FILE");
final Path path = Paths.get("My.pdf");
Files.write(path, byteArray, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.CREATE);
regards.
Another update:
Using in HttpServlet:
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.sap.conn.jco.JCoDestination;
import com.sap.conn.jco.JCoDestinationManager;
import com.sap.conn.jco.JCoException;
import com.sap.conn.jco.JCoFunction;
import com.sap.conn.jco.JCoRepository;
import com.sap.conn.jco.ext.Environment;
import destinations.MyDestination;
public class MyServlet extends HttpServlet {
@Override
protected void doGet(final HttpServletRequest httpServletRequest, final HttpServletResponse httpServletResponse) throws ServletException, IOException {
  httpServletResponse.setContentType("application/pdf");
  httpServletResponse.setStatus(HttpServletResponse.SC_OK);
  final ServletOutputStream servletOutputStream = httpServletResponse.getOutputStream();
  servletOutputStream.write(getPDF());
  servletOutputStream.flush();
  servletOutputStream.close();
private byte[] getPDF() {
  try {
   Environment.registerDestinationDataProvider(new MyDestination());
   final JCoDestination destination = JCoDestinationManager.getDestination(destinations.Id.sapdev2.name());
   final JCoRepository repository = destination.getRepository();
   final JCoFunction function = repository.getFunction("Y_R_EITAN_TESTS_03");
   function.execute(destination);
   final byte[] byteArray = function.getExportParameterList().getByteArray("BIN_FILE");
   return byteArray;
  } catch (final JCoException exception) {
   exception.printStackTrace();
   return null;