Header in GUI_UPLOAD

[Former Member]

Hi everyone,

I am trying to read XML file with function module GUI_UPLOAD.

There are some Parameters about Header that I can't understand.

e.g.[IMPORTING] header_length TYPE I

    [EXPORTING] header TYPE XSTRING

A XML file have element, node, attribute. How should I the Header understand.

thanks in advance.

[Former Member]

Hi,

can you please refer this one

GUI_UPLOAD - SAP Documentation

Thanks,

Ashok.

[Former Member]

I have read the document, Unfortunately, it is only a simple explanation without example code.

Thank you for your kind reply,

[Former Member]

Hi Yinxiao,

Import parameter HEADER_LENGTH and export parameter HEADER is applicable only when you are reading Binaries (Binary File)  . That is file type BIN and file data will be hexadecimal. The binary files some times have header section, to read this information you need above two parameter

Example -If you mention file type as BIN and HEADER_LENGTH as 30 then FM return first 30 chars of file into HEADER  as header details(hexadecimal values).

This is nothing do with xml file and these 2 parameters are optional

Thanks & Regards,

Arun

[Former Member]

Hi Aruna,

thank you for kind reply, I have some questions about the Binay and ASCII in GUI_UPLOAD.

my code is as follows.

1. get the XML files from my PC. The structure of intern table lt_itab is file_table type char64. 

1. I use this static method to get the content from the XML file. lv_path is the name of the file. at first I used the filetype as 'ASC' and the structure type of table lt_data_tab is char256.

But an error came up: I/O error: source exhaused and EOF!

Then I replace the filetype with 'BIN' and change the structure type as x length 256. After that I get the correct result.

CALL METHOD cl_gui_frontend_services=>gui_upload

  EXPORTING

    filename               = lv_path

    filetype                 = 'BIN'

  IMPORTING

      filelength            = lv_table_length 

  CHANGING

      data_tab            = lt_data_tab

Could you tell me what I do wrong and why?

thanks again.

Yinxiao

[Former Member]

HI Liang,

Instead of gui_upload fm  use IMPORT_FROM_FILE method of CL_XML_DOCUMENT to upload XML document.

DATA: gcl_xml TYPE REF TO cl_xml_document.

DATA: gv_subrc TYPE sy-subrc.

START-OF-SELECTION.

  CREATE OBJECT gcl_xml.

*Upload XML File
  CALL METHOD gcl_xml->import_from_file
  EXPORTING

  filename = 'c:\test.xml'

  RECEIVING

  retcode = gv_subrc.

  IF gv_subrc = 0.

*Display XML

  CALL METHOD gcl_xml->display.

  ENDIF.

Regards,

Vineesh B.

[Former Member]

hi vineesh,

thanks for ur kind replay. It's a very good way to display the xml file. I just read the document about cl_xml_document, and I don't find a method to create a Parser, which can generates a DOM, so that I can travel the DOM Tree.

I use the gui_upload fm to generate a input Stream to create Parser,

data: parser type ref to if_ixml_parser.

parser = g_ixml->create_parser(  stream_factory = streamFactory

                                                   istream             = iStream

                                                   document         = document ).

Thanks again for sharing.

Yinxiao