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*"* local helper classes, interface definitions and type
*"* declarations
CLASS lcl_json_path DEFINITION CREATE PUBLIC.
PUBLIC SECTION.
METHODS:
serialize_rec
IMPORTING io_reader TYPE REF TO if_sxml_reader
it_path TYPE string_table
CHANGING ct_json_paths TYPE string_table.
CLASS-METHODS: deserialize
IMPORTING it_json_path TYPE string_table
RETURNING VALUE(rv_result) TYPE string
RAISING zcx_abapgit_exception.
PROTECTED SECTION.
PRIVATE SECTION.
METHODS:
is_array
IMPORTING io_reader TYPE REF TO if_sxml_reader
RETURNING VALUE(rv_result) TYPE abap_bool.
METHODS:
is_string_open
IMPORTING io_reader TYPE REF TO if_sxml_reader
RETURNING VALUE(rv_result) TYPE abap_bool.
METHODS:
is_object
IMPORTING io_reader TYPE REF TO if_sxml_reader
RETURNING VALUE(rv_result) TYPE abap_bool.
METHODS:
serialize_rec_array
IMPORTING io_reader TYPE REF TO if_sxml_reader
it_path TYPE string_table
CHANGING ct_json_paths TYPE string_table.
METHODS:
get_json_path
IMPORTING it_path TYPE string_table
RETURNING VALUE(rv_result) TYPE string.
CLASS-METHODS get_path_elements
IMPORTING iv_path TYPE string
RETURNING VALUE(rt_result) TYPE string_table
RAISING zcx_abapgit_exception.
CLASS-METHODS build_json
IMPORTING it_path_elements TYPE string_table
iv_value TYPE string
CHANGING cv_json_string TYPE string.
CLASS-METHODS path_contains_array
IMPORTING iv_path TYPE string
RETURNING VALUE(rv_result) TYPE abap_bool.
CLASS-METHODS: to_json
IMPORTING iv_json_path TYPE string
RETURNING VALUE(ro_result) TYPE REF TO zcl_abapgit_ajson
RAISING zcx_abapgit_ajson_error
zcx_abapgit_exception.
CLASS-METHODS: is_primitiv
IMPORTING iv_string TYPE string
RETURNING VALUE(rv_result) TYPE abap_bool.
CLASS-METHODS: is_comment_or_empty_line
IMPORTING iv_line TYPE string
RETURNING VALUE(rv_result) TYPE abap_bool.
ENDCLASS.
CLASS lcl_json_path IMPLEMENTATION.
METHOD to_json.
DATA: lv_path TYPE string,
lv_value TYPE string,
lt_path_elements TYPE string_table,
lv_json TYPE string.
FIND REGEX `(.*)=(.*$)` IN iv_json_path SUBMATCHES lv_path lv_value.
IF path_contains_array( lv_path ) = abap_true.
lt_path_elements = get_path_elements( lv_path ).
build_json( EXPORTING it_path_elements = lt_path_elements
iv_value = lv_value
CHANGING cv_json_string = lv_json ).
ro_result = zcl_abapgit_ajson=>parse( lv_json ).
ELSE.
REPLACE FIRST OCCURRENCE OF '$.' IN lv_path WITH ''.
REPLACE '.' IN lv_path WITH '/'.
ro_result = zcl_abapgit_ajson=>create_empty( iv_keep_item_order = abap_true ).
ro_result->set( iv_path = lv_path
iv_val = lv_value ).
ENDIF.
ENDMETHOD.
METHOD path_contains_array.
DATA lv_array_pattern TYPE string VALUE `.*\[.*\].*`.
rv_result = boolc( matches( val = iv_path
regex = lv_array_pattern ) ).
ENDMETHOD.
METHOD build_json.
DATA: lt_new_path_element TYPE string_table,
lv_sub_match TYPE string,
lv_key_name TYPE string,
lv_key_value TYPE string,
lv_name TYPE string,
lv_first_elem TYPE string.
lt_new_path_element = it_path_elements.
IF lines( lt_new_path_element ) = 0.
RETURN.
ENDIF.
READ TABLE lt_new_path_element INTO lv_first_elem INDEX 1.
IF lv_first_elem = `$`. " is root level
DELETE lt_new_path_element INDEX 1.
build_json( EXPORTING it_path_elements = lt_new_path_element
iv_value = iv_value
CHANGING cv_json_string = cv_json_string ).
ELSEIF is_primitiv( lv_first_elem ) = abap_true.
cv_json_string = cv_json_string && | \{"{ lv_first_elem+1 }": |.
DELETE lt_new_path_element INDEX 1.
build_json( EXPORTING it_path_elements = lt_new_path_element
iv_value = iv_value
CHANGING cv_json_string = cv_json_string ).
cv_json_string = cv_json_string && ` }`.
ELSE. " is array
FIND REGEX `\[(.*)\]` IN lv_first_elem SUBMATCHES lv_sub_match.
FIND REGEX `(\w+)(?==='([^']*)')` IN lv_sub_match SUBMATCHES lv_key_name lv_key_value.
READ TABLE lt_new_path_element INTO lv_name INDEX 2.
DELETE lt_new_path_element INDEX 1.
DELETE lt_new_path_element INDEX 1.
IF lines( lt_new_path_element ) = 0.
cv_json_string = cv_json_string &&
|[ \{ "{ lv_key_name }": "{ lv_key_value }", "{ lv_name+1 }": "{ iv_value }"\} ]|.
ELSE.
cv_json_string = cv_json_string && |[ \{ "{ lv_key_name }": "{ lv_key_value }", "{ lv_name+1 }":|.
build_json( EXPORTING it_path_elements = lt_new_path_element
iv_value = iv_value
CHANGING cv_json_string = cv_json_string ).
cv_json_string = cv_json_string && `} ] `.
ENDIF.
ENDIF.
ENDMETHOD.
METHOD is_primitiv.
FIND REGEX `^.\w+` IN iv_string. " string start with .
rv_result = boolc( sy-subrc = 0 ).
ENDMETHOD.
METHOD get_path_elements.
DATA: lv_pcre_pattern TYPE string,
lt_match_result TYPE match_result_tab,
lv_match TYPE match_result,
lv_hit TYPE string,
lx_find TYPE REF TO cx_root.
lv_pcre_pattern = `(^\$)|(\.\w+)|(\[[^\]]*\])`.
TRY.
FIND ALL OCCURRENCES OF REGEX lv_pcre_pattern IN iv_path RESULTS lt_match_result.
CATCH cx_sy_find_infinite_loop cx_sy_range_out_of_bounds cx_sy_invalid_regex cx_sy_regex_too_complex INTO lx_find.
zcx_abapgit_exception=>raise_with_text( lx_find ).
ENDTRY.
LOOP AT lt_match_result INTO lv_match.
lv_hit = substring( val = iv_path
off = lv_match-offset
len = lv_match-length ).
APPEND lv_hit TO rt_result.
ENDLOOP.
ENDMETHOD.
METHOD is_array.
rv_result = boolc( io_reader->name = 'array' ).
ENDMETHOD.
METHOD is_string_open.
rv_result = boolc( io_reader->name = 'str' AND io_reader->node_type = if_sxml_node=>co_nt_element_open ).
ENDMETHOD.
METHOD is_object.
rv_result = boolc( io_reader->name = 'object' ).
ENDMETHOD.
METHOD serialize_rec.
DATA: lt_new_path TYPE string_table,
lv_key TYPE string.
lt_new_path = it_path.
IF io_reader->read_next_node( ) IS INITIAL.
RETURN.
ENDIF.
IF is_string_open( io_reader ) = abap_true.
APPEND io_reader->value TO lt_new_path.
lv_key = get_json_path( lt_new_path ).
io_reader->read_next_node( ).
lv_key = |{ lv_key }={ io_reader->value }|.
APPEND lv_key TO ct_json_paths.
io_reader->read_next_node( ).
DELETE lt_new_path INDEX lines( lt_new_path ).
serialize_rec( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ELSEIF is_object( io_reader ) = abap_true AND io_reader->node_type = if_sxml_node=>co_nt_element_open.
APPEND io_reader->value TO lt_new_path.
serialize_rec( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ELSEIF is_array( io_reader ) = abap_true AND io_reader->node_type = if_sxml_node=>co_nt_element_open.
APPEND io_reader->value TO lt_new_path.
serialize_rec_array( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ELSEIF ( is_object( io_reader ) = abap_true OR is_array( io_reader ) = abap_true )
AND io_reader->node_type = if_sxml_node=>co_nt_element_close.
DELETE lt_new_path INDEX lines( lt_new_path ).
serialize_rec( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ENDIF.
ENDMETHOD.
METHOD serialize_rec_array.
DATA: lt_new_path TYPE string_table,
lv_json_path TYPE string,
lv_array_key TYPE string.
lt_new_path = it_path.
IF io_reader->read_next_node( ) IS INITIAL.
RETURN.
ENDIF.
IF is_string_open( io_reader ) = abap_true.
APPEND io_reader->value TO lt_new_path.
lv_json_path = get_json_path( lt_new_path ).
io_reader->read_next_node( ).
lv_json_path = |{ lv_json_path }={ io_reader->value }|.
APPEND lv_json_path TO ct_json_paths.
io_reader->read_next_node( ).
serialize_rec( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ELSEIF is_object( io_reader ) = abap_true AND io_reader->node_type = if_sxml_node=>co_nt_element_open.
io_reader->read_next_node( ).
lv_array_key = io_reader->value.
io_reader->read_next_node( ).
lv_array_key = |[?(@.{ lv_array_key }=='{ io_reader->value }')]|.
APPEND lv_array_key TO lt_new_path.
io_reader->read_next_node( ).
io_reader->read_next_node( ).
APPEND io_reader->value TO lt_new_path.
lv_json_path = get_json_path( lt_new_path ).
io_reader->read_next_node( ).
lv_json_path = |{ lv_json_path }={ io_reader->value }|.
APPEND lv_json_path TO ct_json_paths.
io_reader->read_next_node( ).
DELETE lt_new_path INDEX lines( lt_new_path ).
serialize_rec_array( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ELSEIF is_array( io_reader ) = abap_true AND io_reader->node_type = if_sxml_node=>co_nt_element_open.
APPEND io_reader->value TO lt_new_path.
serialize_rec_array( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ELSEIF ( is_object( io_reader ) = abap_true OR is_array( io_reader ) = abap_true )
AND io_reader->node_type = if_sxml_node=>co_nt_element_close.
DELETE lt_new_path INDEX lines( lt_new_path ).
serialize_rec_array( EXPORTING io_reader = io_reader
it_path = lt_new_path
CHANGING ct_json_paths = ct_json_paths ).
ENDIF.
ENDMETHOD.
METHOD get_json_path.
rv_result = concat_lines_of( table = it_path
sep = `.` ).
REPLACE ALL OCCURRENCES OF `.[` IN rv_result WITH `[`.
ENDMETHOD.
METHOD deserialize.
DATA: lo_merged TYPE REF TO zif_abapgit_ajson,
lv_json_path TYPE string,
lo_deserialization_result TYPE REF TO zif_abapgit_ajson,
lx_ajson TYPE REF TO zcx_abapgit_ajson_error.
TRY.
lo_merged = zcl_abapgit_ajson=>parse( `` ).
CATCH zcx_abapgit_ajson_error INTO lx_ajson.
zcx_abapgit_exception=>raise_with_text( lx_ajson ).
ENDTRY.
LOOP AT it_json_path INTO lv_json_path.
IF is_comment_or_empty_line( lv_json_path ) = abap_true.
CONTINUE.
ENDIF.
TRY.
lo_deserialization_result = to_json( lv_json_path ).
CATCH zcx_abapgit_ajson_error INTO lx_ajson.
zcx_abapgit_exception=>raise_with_text( lx_ajson ).
ENDTRY.
TRY.
lo_merged = zcl_abapgit_ajson_utilities=>new( )->merge( io_json_a = lo_merged
io_json_b = lo_deserialization_result ).
CATCH zcx_abapgit_ajson_error INTO lx_ajson.
zcx_abapgit_exception=>raise_with_text( lx_ajson ).
ENDTRY.
ENDLOOP.
TRY.
rv_result = lo_merged->stringify( 2 ).
CATCH zcx_abapgit_ajson_error INTO lx_ajson.
zcx_abapgit_exception=>raise_with_text( lx_ajson ).
ENDTRY.
ENDMETHOD.
METHOD is_comment_or_empty_line.
IF iv_line IS INITIAL.
rv_result = abap_true.
RETURN.
ENDIF.
FIND REGEX `^!` IN iv_line.
IF sy-subrc = 0.
rv_result = abap_true.
RETURN.
ENDIF.
FIND REGEX `^#` IN iv_line.
IF sy-subrc = 0.
rv_result = abap_true.
RETURN.
ENDIF.
ENDMETHOD.
ENDCLASS.
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