METHOD DELETE_XML_NODE.
***********************************************************************
* This method deletes all tags which belong to a given XML node
***********************************************************************
DATA: lo_converter TYPE REF TO cl_http_request.
DATA: lv_xml_string TYPE string.
DATA: lv_node_start_search_string TYPE string.
DATA: lv_node_end_search_string TYPE string.
DATA: lv_node_found TYPE apc_v_indicator.
DATA: lv_node_start TYPE i.
DATA: lv_node_end_start TYPE i.
DATA: lv_node_end_length TYPE i.
DATA: lv_node_end TYPE i.
DATA: lv_node_length TYPE i.
DATA: lv_bin_sign(1) TYPE X.
DATA: lv_bin_initial TYPE xstring.
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* delete 'line feed, new line' from cv_xml_xstring, as it can not be
* converted to string
lv_bin_sign = '0A'.
REPLACE ALL OCCURRENCES OF lv_bin_sign IN cv_xml_xstring WITH lv_bin_initial IN BYTE MODE.
TRY.
CREATE OBJECT lo_converter
EXPORTING
add_c_msg = 1.
* convert given xml xstring to string
CALL METHOD lo_converter->if_http_entity~set_data
EXPORTING
data = cv_xml_xstring.
CALL METHOD lo_converter->if_http_entity~get_cdata
RECEIVING
data = lv_xml_string.
* for the node's start, we have to search for the opening tag of the given node name
CONCATENATE '<' iv_xml_node_name
INTO lv_node_start_search_string.
* for the node's end, we have to search for the closing tag of the given node name
CONCATENATE ''
INTO lv_node_end_search_string.
* assume that there's at least one occurence of the node
lv_node_found = abap_true.
* loop as the node can occur several times
WHILE lv_node_found EQ abap_true.
FIND lv_node_start_search_string
IN lv_xml_string
MATCH OFFSET lv_node_start.
IF sy-subrc = 0. " node's opening tag found!
FIND lv_node_end_search_string
IN lv_xml_string
MATCH OFFSET lv_node_end_start
MATCH LENGTH lv_node_end_length.
lv_node_end = lv_node_end_start + lv_node_end_length.
* for REPLACE SECTION statement the length of the whole nodes string is needed
lv_node_length = lv_node_end - lv_node_start.
* delete currently found occurrence of given node from xml
REPLACE SECTION OFFSET lv_node_start LENGTH lv_node_length OF lv_xml_string WITH ''.
ELSE. " NO node's opening tag found! -> all occurrences of node already deleted
lv_node_found = abap_false.
EXIT.
ENDIF.
ENDWHILE.
* convert changed xml string back to xstring
CALL METHOD lo_converter->if_http_entity~set_cdata
EXPORTING
data = lv_xml_string.
CALL METHOD lo_converter->if_http_entity~get_data
RECEIVING
data = cv_xml_xstring.
ENDTRY.
ENDMETHOD.
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