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Implementing /IWBEP/IF_MGW_EDP_MAP_GSTREAM for GET_STREAM — Inbound Mapping

The Inbound mapping method is provided with:

  • BOP DO

  • A set of BOP DOs processed by previous mapping specialists

  • The entity data (ER_ENTITY or ER_ENTITYSET or ER_DATA). The entity data can be partially filled by previous mapping specialists.

  • Operation specific parameters

To implement inbound mapping interface method /IWBEP/IF_MGW_BOP_MAP_GSTREAM~MAP_INBOUND for GET_STREAM, proceed as follows:

  1. Read the input parameters IT_KEY_TAB, IT_NAVIGATION_PATH.

  2. Determine if the Backend Operation Proxy needs to be called multiple times based on the input (Optional).

  3. Set the BOP DO request.

Sample Code

DATA: ls_key_tab TYPE LINE OF /iwbep/t_mgw_name_value_pair.
DATA: lo_bop_do TYPE REF TO /IWBEP/cl_mgw_bop_sfl_bkrd_do.
DATA: lo_bop_do_additional TYPE REF TO  /IWBEP/cl_mgw_bop_sfl_bkrd_do.
DATA: ls_request TYPE /IWBEP/cl_mgw_bop_sfl_bkrd=>_params_request.
 
lo_bop_do ?= io_bop_do. 
LOOP AT it_key_tab INTO ls_key_tab. 
IF sy-index > 1.
  CREATE OBJECT lo_bop_do_additional.
  APPEND lo_bop_do_additional TO ET_ADDITIONAL_BOP_DO .
  lo_bop_do = lo_bop_do_additional.
ENDIF.
 IF ls_key_tab-name Eq 'airlineid'.
       ls_request-airlinecarrier = ls_key_tab-value.
      lo_bop_do->set_request( ls_request ).
 ENDIF.
ENDLOOP.
Implementing /IWBEP/IF_MGW_EDP_MAP_GSTREAM for GET_STREAM — Outbound Mapping

To implement outbound mapping interface method /IWBEP/IF_MGW_BOP_MAP_GSTREAM~MAP_OUTBOUND for GET_STREAM, proceed as follows:

  1. Get the BOP response.

  2. Map the response (binary content, mime type) to the parameter ER_STREAM.

     DATA:   lo_bop_do         TYPE REF TO /iwbep/cl_mgw_test_bop_do,
             ls_response             TYPE /iwbep/cl_mgw_test_bop=>_params_response,  
             lo_api                      TYPE REF TO  if_mr_api,   
             lv_uri                       TYPE         string.  
   
             lo_bop_do ?= io_bop_do.  
             lo_bop_do->get_response( IMPORTING es_response = ls_response ).  
             lo_api = cl_mime_repository_api=>get_api( i_prefix = ls_response-ev_url ).  
       
             lv_uri = '3_people_money.gif'.       " sample binary content to be retrieved
             lo_api->get( EXPORTING i_url       = lv_uri                   
                          IMPORTING e_content   = es_stream-value                                    
                                    e_mime_type = es_stream-mime_type ).

Continue with Error Handling in Mapping Specialists

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