XML generation from BSP

STEP1: have a controller in the BSP application ending with .xml (for eg: export.xml)

STEP2: create a controller class for the controller(zcl_c_xml_export)

STEP3: In the do_request method of the of the controller class, pass the internal table to be converted to the xml file via a function module ZI057678_TEST_XML; which will return the xml string.

Now, call the “write” method of the cl_bsp_controller and pass the xml string

STEP3.1: The function module will have the following code:

FUNCTION zi057678_test_xml.
*"----------------------------------------------------------------------
*"*"Local interface:
*" IMPORTING
*" REFERENCE(IT_ITAB) TYPE STANDARD TABLE
*" EXPORTING
*" REFERENCE(EV_OUTPUT) TYPE STRING
*"----------------------------------------------------------------------

DATA: lt_column TYPE TABLE OF dfies,
ls_column LIKE LINE OF lt_column,
ls_js TYPE string,
lr_export_table_ref TYPE REF TO data,
lr_ixml TYPE REF TO if_ixml,
lr_stream_factory TYPE REF TO if_ixml_stream_factory,
lr_encoding TYPE REF TO if_ixml_encoding,
lr_resstream TYPE REF TO if_ixml_ostream,
lr_doc TYPE REF TO if_ixml_document,
lr_root_node TYPE REF TO if_ixml_element.


FIELD-SYMBOLS: LIKE it_itab,
TYPE table.

CONSTANTS: c_encoding TYPE string VALUE 'UTF-8'.

"create new data object and copy it_itab into it
CREATE DATA lr_export_table_ref LIKE it_itab.

ASSIGN lr_export_table_ref->* TO .

= it_itab.

"create an instance of the Ixml Processor
lr_ixml = cl_ixml=>create( ).

"create xml docu
lr_doc = lr_ixml->create_document( ).

"create the Stream Factory
lr_stream_factory = lr_ixml->create_stream_factory( ).

"create an Endcoding and Byte Order
lr_encoding = lr_ixml->create_encoding( character_set = c_encoding
byte_order = 0 ).

"set encoding for docu
lr_doc->set_encoding( encoding = lr_encoding ).

"append root node
lr_root_node = lr_doc->create_element( name = 'table' ).
lr_doc->append_child( new_child = lr_root_node ).

"create the output stream with a pointer to our binary string

lr_resstream = lr_stream_factory->create_ostream_cstring( ev_output ).

"get a pointer to our data table
ASSIGN lr_export_table_ref->* TO .

"set the Encoding into a stream
lr_resstream->set_encoding( encoding = lr_encoding ).

"call Transformation using the simple XSLT id_indent
CALL TRANSFORMATION id_indent
SOURCE itab =
RESULT XML lr_resstream.

ENDFUNCTION.

STEP4: Now test the controller to see the pop up of the XML.