[ABAP] Konvertierung von string nach xstring und zurück (UTF-8)

DATA(lv_str) = |Teststring|.

TRY.
* string -> xstring
* default UTF-8
    DATA(lv_xstr) = cl_abap_codepage=>convert_to( source = lv_str ).
* xstring -> string
* default UTF-8
    DATA(lv_dec_str) = cl_abap_codepage=>convert_from( source = lv_xstr ).

    WRITE: / lv_str.
    WRITE: / lv_xstr.
    WRITE: / lv_dec_str.

  CATCH cx_root INTO DATA(e_txt).
    WRITE: / e_txt->get_text( ).
ENDTRY.

[ABAP] JSON parsen und in Node-Table wandeln

* Quelle: https://github.com/i042416/KnowlegeRepository/blob/master/ABAP/SmallApp/011_ZCL_JERRY_TOOL.abap
CLASS lcl_json_parser DEFINITION.
  PUBLIC SECTION.

    TYPES: BEGIN OF ty_node,
             type      TYPE string,
             prefix    TYPE string,
             name      TYPE string,
             nsuri     TYPE string,
             value     TYPE string,
             value_raw TYPE xstring,
           END OF ty_node.

    TYPES: ty_it_node TYPE STANDARD TABLE OF ty_node WITH DEFAULT KEY.

    CONSTANTS: co_open_element TYPE string VALUE 'OPEN'.
    CONSTANTS: co_close_element TYPE string VALUE 'CLOSE'.
    CONSTANTS: co_attribute TYPE string VALUE 'ATTRIBUTE'.
    CONSTANTS: co_value TYPE string VALUE 'VALUE'.

    CLASS-METHODS: convert_json_to_node_table
      IMPORTING
                iv_json            TYPE string
      RETURNING VALUE(rv_it_nodes) TYPE ty_it_node
      RAISING
                cx_sxml_parse_error.
ENDCLASS.

CLASS lcl_json_parser IMPLEMENTATION.
  METHOD convert_json_to_node_table.

* JSON nach XSTRING (UTF-8) konvertieren
    DATA(o_json) = cl_abap_codepage=>convert_to( iv_json ).
* XSTRING einlesen und nach XML parsen
    DATA(o_reader) = cl_sxml_string_reader=>create( o_json ).

    TRY.
* erste Node holen
        DATA(o_node) = o_reader->read_next_node( ).

* solange es Nodes gibt
        WHILE o_node IS BOUND.
* Node-Typen prüfen
          CASE o_node->type.
* Öffnen-Node
            WHEN if_sxml_node=>co_nt_element_open.
              DATA(op) = CAST if_sxml_open_element( o_node ).
              APPEND VALUE #( type   = co_open_element
                              prefix = op->prefix
                              name   = op->qname-name
                              nsuri  = op->qname-namespace ) TO rv_it_nodes.

* Attribute
              LOOP AT op->get_attributes( ) ASSIGNING FIELD-SYMBOL(<a>).
                APPEND VALUE #( type      = co_attribute
                                prefix    = <a>->prefix
                                name      = <a>->qname-name
                                nsuri     = <a>->qname-namespace
                                value     = COND #( WHEN <a>->value_type = if_sxml_value=>co_vt_text THEN <a>->get_value( ) )
                                value_raw = COND #( WHEN <a>->value_type = if_sxml_value=>co_vt_raw THEN <a>->get_value_raw( ) ) ) TO rv_it_nodes.
              ENDLOOP.
* Schließen-Node
            WHEN if_sxml_node=>co_nt_element_close.
              DATA(cl) = CAST if_sxml_close_element( o_node ).
              APPEND VALUE #( type   = co_close_element
                              prefix = cl->prefix
                              name   = cl->qname-name
                              nsuri  = cl->qname-namespace ) TO rv_it_nodes.

* Wert-Node
            WHEN if_sxml_node=>co_nt_value.
              DATA(val) = CAST if_sxml_value_node( o_node ).
              APPEND VALUE #( type      = co_value
                              value     = COND #( WHEN val->value_type = if_sxml_value=>co_vt_text THEN val->get_value( ) )
                              value_raw = COND #( WHEN val->value_type = if_sxml_value=>co_vt_raw THEN val->get_value_raw( ) ) ) TO rv_it_nodes.
* Andere Nodetypen
            WHEN OTHERS.

          ENDCASE.

* nächste Node
          o_node = o_reader->read_next_node( ).
        ENDWHILE.

      CATCH cx_root INTO DATA(e_txt).
        RAISE EXCEPTION TYPE cx_sxml_parse_error
          EXPORTING
            error_text = e_txt->get_text( ).
    ENDTRY.
  ENDMETHOD.
ENDCLASS.

START-OF-SELECTION.
  TRY.
* JSON-Beispiele
*      DATA(lv_json) = CONV string( '{"success":"true","msg":"Ok.","matnr":"0000001234"}' ).
      DATA(lv_json) = CONV string( '{"VALUES":[{"NAME":"Horst","TITLE":"Herr","AGE":30},{"NAME":"Jutta","TITLE":"Frau","AGE":35},{"NAME":"Ingo","TITLE":"Herr","AGE":31}]}' ).

* JSON -> Nodetable
      DATA(it_node_values) = lcl_json_parser=>convert_json_to_node_table( lv_json ).

* Datenausgabe
      cl_demo_output=>write_data( lv_json ).
      cl_demo_output=>write_data( it_node_values ).
      cl_demo_output=>display( ).
    CATCH cx_root INTO DATA(e_txt).
      WRITE: / e_txt->get_text( ).
  ENDTRY.

[ABAP] JSON -> Struktur

Variante 1 (/ui2/cl_json)

* ABAP Zieldatentyp
TYPES: BEGIN OF ty_abap,
         param1 TYPE char64,
         param2 TYPE char64,
       END OF ty_abap.

* JSON-Quelldaten
DATA: lv_json_response TYPE string VALUE '{"param1":123,"param2":321}'.
DATA: ls_abap TYPE ty_abap.

TRY.
* JSON->ABAP
    /ui2/cl_json=>deserialize( EXPORTING json        = lv_json_response
                                         pretty_name = /ui2/cl_json=>pretty_mode-camel_case
                               CHANGING  data        = ls_abap ).

    cl_demo_output=>write_data( lv_json_response ).
    cl_demo_output=>write_data( ls_abap ).
    cl_demo_output=>display( ).
  CATCH cx_root INTO DATA(e_txt).
    MESSAGE e_txt->get_text( ) TYPE 'S' DISPLAY LIKE 'E'.
ENDTRY.

Variante 2 (cl_fdt_json)

* ABAP Zieldatentyp
TYPES: BEGIN OF ty_abap,
         success TYPE string,
         msg     TYPE string,
         matnr   TYPE matnr,
       END OF ty_abap.

* JSON-Quelldaten
DATA: lv_json_response TYPE string VALUE '{"success":true,"msg":"Ok.","matnr":0000001234}'.
DATA: ls_abap TYPE ty_abap.

cl_fdt_json=>json_to_data( EXPORTING iv_json = lv_json_response
                           CHANGING  ca_data = ls_abap ).

cl_demo_output=>write_data( lv_json_response ).
cl_demo_output=>write_data( ls_abap ).
cl_demo_output=>display( ).

VAriante 3 (cl_clb_parse_json)

* ABAP Zieldatentyp
TYPES: BEGIN OF ty_abap,
         success TYPE string,
         msg     TYPE string,
         matnr   TYPE matnr,
       END OF ty_abap.

TRY.
* JSON-Quelldaten
    DATA(lv_json_response) = CONV string( '{"success":"true","msg":"Ok.","matnr":"0000001234"}' ).

* JSON nach XSTRING (UTF-8) konvertieren
    DATA(lvx_string) = cl_abap_codepage=>convert_to( lv_json_response ).
* XSTRING nach string wandeln
    DATA(lv_utf8) = cl_clb_tools=>xstring_to_string( lvx_string ).

* JSON->ABAP
    DATA(o_json) = NEW cl_clb_parse_json( ).
    DATA: ls_abap TYPE ty_abap.

    o_json->json_to_data( EXPORTING iv_json = lv_utf8
                          CHANGING c_data   = ls_abap ).

    cl_demo_output=>write_data( lv_json_response ).
    cl_demo_output=>write_data( ls_abap ).
    cl_demo_output=>display( ).
  CATCH cx_root INTO DATA(e_txt).
    MESSAGE e_txt->get_text( ) TYPE 'S' DISPLAY LIKE 'E'.
ENDTRY.

[ABAP] String -> JSON

DATA: text TYPE string VALUE 'Hello world!'.

* ABAP (string) -> JSON
DATA(o_writer_json) = cl_sxml_string_writer=>create( type = if_sxml=>co_xt_json ).
CALL TRANSFORMATION id SOURCE text = text RESULT XML o_writer_json.
DATA(json) = cl_abap_codepage=>convert_from( o_writer_json->get_output( ) ).

WRITE: / json.

[ABAP] itab -> XML

TYPES: BEGIN OF s_person,
         name  TYPE string,
         title TYPE string,
         age   TYPE i,
       END OF s_person.

TYPES: t_person TYPE STANDARD TABLE OF s_person WITH DEFAULT KEY.

DATA(it_persons) = VALUE t_person( ( name = 'Horst' title = 'Herr' age = 30 )
                                   ( name = 'Jutta' title = 'Frau' age = 35 )
                                   ( name = 'Ingo' title = 'Herr' age = 31 ) ).

* ABAP (iTab) -> XML
DATA(o_writer_itab_xml) = cl_sxml_string_writer=>create( type = if_sxml=>co_xt_xml10 ).
CALL TRANSFORMATION id SOURCE values = it_persons RESULT XML o_writer_itab_xml.
DATA(itab_xml) = cl_abap_codepage=>convert_from( o_writer_itab_xml->get_output( ) ).

WRITE: / itab_xml.

[ABAP] XML nach JSON parsen

* XML-Daten
DATA(lv_xml) = |<object><str name="text">abcd</str><bool name="flag">true</bool><member name="number"><num>111</num></member><member name="content"><null /></member></object>|.

TRY.
* XML-Daten lesen
    DATA(o_r) = cl_sxml_string_reader=>create( input = cl_abap_codepage=>convert_to( lv_xml ) ).
* evtl. Objektkomponenten mit <member->-Elementen darstellen
*    reader->set_option( if_sxml_reader=>co_opt_sep_member ).

    DATA(o_w) = CAST if_sxml_writer( cl_sxml_string_writer=>create( type     = if_sxml=>co_xt_json
                                                                    encoding = 'UTF-8' ) ).
* Ausgabeoptionen setzen
    o_w->set_option( option = if_sxml_writer=>co_opt_linebreaks ).
    o_w->set_option( option = if_sxml_writer=>co_opt_indent ).

    o_r->next_node( ).
* JSON parsen
    o_r->skip_node( o_w ).

* Ausgabe konvertieren
    DATA(lv_json) = cl_abap_codepage=>convert_from( CAST cl_sxml_string_writer( o_w )->get_output( ) ).

* JSON ausgeben
    cl_demo_output=>display_json( lv_json ).
  CATCH cx_root INTO DATA(e_txt).
    WRITE: / e_txt->get_text( ).
ENDTRY.

[ABAP] Interne Tabelle in XML wandeln und anzeigen

Variante 1 (Klassen)

DATA it_itab TYPE STANDARD TABLE OF mara.

SELECT * FROM mara INTO TABLE it_itab UP TO 10 ROWS.

DATA(o_writer_itab_xml) = cl_sxml_string_writer=>create( type = if_sxml=>co_xt_xml10 ).
CALL TRANSFORMATION id SOURCE values = it_itab RESULT XML o_writer_itab_xml.
DATA(itab_xml) = cl_abap_codepage=>convert_from( o_writer_itab_xml->get_output( ) ).

cl_abap_browser=>show_xml( xml_string = itab_xml
                           title      = 'Überschrift'
                           size       = cl_abap_browser=>large ).

Variante 2 (FuBa)

DATA lv_xml TYPE xstring.
DATA lo_dom TYPE REF TO if_ixml_document.
DATA it_itab TYPE STANDARD TABLE OF mara.

SELECT * FROM mara INTO TABLE it_itab UP TO 10 ROWS.

CALL TRANSFORMATION id SOURCE data_node = it_itab RESULT XML lv_xml.

CALL FUNCTION 'SDIXML_XML_TO_DOM'
  EXPORTING
    xml           = lv_xml
  IMPORTING
    document      = lo_dom
  EXCEPTIONS
    invalid_input = 1
    OTHERS        = 2.

IF sy-subrc = 0.
  CALL FUNCTION 'SDIXML_DOM_TO_SCREEN'
    EXPORTING
      document    = lo_dom
      title       = 'XML-Doc'
      encoding    = 'UTF-8'
    EXCEPTIONS
      no_document = 1
      OTHERS      = 2.

  IF sy-subrc = 0.

  ENDIF.
ENDIF.

[ABAP] string (Text) nach xstring (Bytes) wandeln

Variante 1 (cl_abap_conv_out_ce)

DATA: lv_str TYPE string VALUE 'Teststring.'.
DATA: lv_xstr TYPE xstring.

* string (UTF-8) -> xstring (binary)
DATA(o_conv_w) = cl_abap_conv_out_ce=>create( encoding = 'UTF-8' ).
o_conv_w->write( data = lv_str ).
lv_xstr = o_conv_w->get_buffer( ).

WRITE: / lv_xstr.

Variante 2 (SCMS_STRING_TO_XSTRING)

DATA: lv_str TYPE string VALUE 'Teststring.'.
DATA: lv_xstr TYPE xstring.
  
CALL FUNCTION 'SCMS_STRING_TO_XSTRING'
  EXPORTING
    text   = lv_str
  IMPORTING
    buffer = lv_xstr.

WRITE: / lv_xstr.

Variante 3 (cl_proxy_service)

DATA: lv_str TYPE string VALUE 'Teststring.'.
* string (4110 / UTF-8) -> xstring (binary)
DATA(lv_xstr_res) = cl_proxy_service=>cstring2xstring( lv_str ).
WRITE: / lv_xstr_res.

Variante 4 (cl_abap_codepage)

DATA: lv_str TYPE string VALUE 'Teststring.'.
* string -> xstring (binary) (UTF-8)
DATA(xstr) = cl_abap_codepage=>convert_to( source   = lv_str
                                           codepage = 'UTF-8' ).
WRITE: / xstr.

Variante 5 (cl_abap_message_digest)

DATA: lv_str TYPE string VALUE 'Teststring.'.
* string (4110 / UTF-8) -> xstring (binary)
DATA(lv_xstr) = cl_abap_message_digest=>string_to_xstring( lv_str ).

WRITE: / lv_xstr.

Variante 6 (cl_abap_hmac)

DATA: lv_str TYPE string VALUE 'Teststring.'.
* string (4110 / UTF-8) -> xstring (binary)
DATA(lv_xstr) = cl_abap_hmac=>string_to_xstring( lv_str ).

WRITE: / lv_xstr.

Variante 7 (cl_clb_tools)

DATA: lv_str TYPE string VALUE 'Teststring.'.
* string -> xstring (binary) (UTF-8)
DATA(lv_xstr) = cl_clb_tools=>string_to_xstring( lv_str ).

WRITE: / lv_xstr.