abap2UI5

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Logging, BAL ​

Logging is critical for business processes. In ABAP systems, the standard tool is the Business Application Log (BAL), available on-premise and in ABAP Cloud environments alike. With abap2UI5, use BAL like you would in classic ABAP and display logs with the framework's built-in popups.

BAL Tables ​

In classic ABAP, use the BAL function modules and show the BAL table with the popup Z2UI5_CL_POP_MESSAGES:

abap
METHOD z2ui5_if_app~main.

  DATA(lt_bal) = VALUE bal_t_msgr(
    ( msgid = `Z001` msgno = `001` msgty = `S` time_stmp = `21354` msgnumber = `01` )
    ( msgid = `Z001` msgno = `001` msgty = `S` time_stmp = `21354` msgnumber = `02` ) ).

  client->nav_app_call( z2ui5_cl_pop_messages=>factory( lt_bal ) ).

ENDMETHOD.

ABAP Cloud ​

In ABAP Cloud, hand the logging object straight to the popup:

abap
METHOD z2ui5_if_app~main.

  DATA(lo_log) = cl_bali_log=>create( ).
  DATA(lo_msg) = cl_bali_message_setter=>create(
    severity   = if_bali_constants=>c_severity_status
    id         = `DEMO_LOG`
    number     = `002`
    variable_1 = `username` ).
  lo_log->add_item( lo_msg ).

  DATA(lo_bapi) = cl_bali_message_setter=>create_from_bapiret2(
    VALUE #(
      type       = `E`
      id         = `DEMO_LOG`
      number     = `002`
      message_v1 = `Dummy` ) ).
  lo_log->add_item( lo_bapi ).

  client->nav_app_call( z2ui5_cl_pop_messages=>factory( lo_log ) ).

ENDMETHOD.

abap-logger ​

You can also use the open-source project abap-logger. It simplifies work with BAL logs and pairs well with abap2UI5:

abap
METHOD z2ui5_if_app~main.

  DATA(lo_log) = zcl_logger_factory=>create_log( desc = `ABAP Logger` ).
  lo_log->e( `This is an error...` ).
  lo_log->s( `This is a success message...` ).

  client->nav_app_call( z2ui5_cl_pop_messages=>factory( lo_log ) ).

ENDMETHOD.

BAL Popup ​

Unlike message classes, BAL logs carry more detail — like timestamps. Use the dedicated BAL log popup to show them. All examples above also work with the Z2UI5_CL_POP_BAL popup for richer output. An example with abap-logger:

abap
METHOD z2ui5_if_app~main.

  DATA(lo_log) = zcl_logger_factory=>create_log( desc = `ABAP Logger` ).
  lo_log->e( `This is an error...` ).

  client->nav_app_call( z2ui5_cl_pop_bal=>factory( lo_log ) ).

ENDMETHOD.

TIP

The BAL popup is still in its early stages and offers only basic features. If you've built BAL features with abap2UI5, please consider contributing to grow it.