topic Re: Get class/variable from ABAP Callstack. in Application Development and Automation Discussions

Get class/variable from ABAP Callstack.

Former Member — Thu, 04 Jun 2009 11:33:12 GMT

Hi,

I need some information in one of my methods.

The info residing in higher level method in the ABAP Callstack.

My callstack looks like this

Event Type___Event_______________________________Program

METHOD___IF_RSPLS_CR_METHODS~DERIVE_____ZFIB0001_IP_CHAR_REL==========CP <- I'm here.

METHOD___IF_RSPLS_CR_MAPPER~DERIVEM_____CL_RSPLS_CR_MAPPER============CP

METHOD___IF_RSPLS_CR_CONTROLLER~DERIVE__CL_RSPLS_CR_CONTROLLER========CP

METHOD___CR_DERIVE_________________________CL_RSPLS_DELTA_BUFFER_B=======CP

METHOD___WRITE______________________________CL_RSPLS_DELTA_BUFFER_B=======CP

METHOD___WRITE______________________________CL_RSPLS_DELTA_BUFFER_AM======CP

METHOD___WRITE_EXT__________________________CL_RSPLS_DELTA_BUFFER=========CP

METHOD___STORE_DELTA_IN_BUFFER____________CL_RSPLFR_CONTROLLER==========CP

METHOD___EXECUTE_SERVICE___________________CL_RSPLFR_CONTROLLER==========CP

METHOD___EXECUTE____________________________CL_RSPLFR_WEB_START_SERVICE===CP

FUNCTION_BICS_CONS_EXECUTE_PLANNING_FUN__SAPLRSBOLAP_BICS_CONSUMER

FORM_____BICS_CONS_EXECUTE_PLANNING_FUN__SAPLRSBOLAP_BICS_CONSUMER

FORM_____REMOTE_FUNCTION_CALL_____________SAPMSSY1

MODULE___%_RFC_START_______________________SAPMSSY1

I need to access line 4 from the bottom (function in SAPLRSBOLAP_BICS_CONSUMER).

From here i need to access

L_R_DATA_PROVIDER which is a class type CL_RSPLFR_WEB_START_SERVICE.

I have tried to use the method in , but so far it has been unsuccesful.

Is it possible to gain access to a class higher in the hierarchy ?

Br Rasmus

Re: Get class/variable from ABAP Callstack.

naimesh_patel — Thu, 04 Jun 2009 13:53:13 GMT

To get an access of the object, you can try this way:


  DATA: ld_class  TYPE string,
        ld_method TYPE string.
  DATA: lo_obj    TYPE REF TO object.
  FIELD-SYMBOLS:
   <lo_provider>   TYPE ANY.

  ld_class = '(SAPLRSBOLAP_BICS_CONSUMER)L_R_DATA_PROVIDER'.
  ASSIGN (ld_class) TO <lo_provider>.

Now, if you want to execute the method, you can try this way:


  lo_obj ?= <lo_provider>.
  ld_method = 'LINE_GET'.
  CALL METHOD lo_obj->(ld_method)
    ....

To get an access of the public attributes:


 ld_class = '(SAPLRSBOLAP_BICS_CONSUMER)L_R_DATA_PROVIDER->attr'.  "put actual attribute name
  ASSIGN (ld_class) TO <lo_attr>.

Regards,

Naimesh Patel

Re: Get class/variable from ABAP Callstack.

Former Member — Thu, 04 Jun 2009 14:13:02 GMT

Hi Naimesh,

Thanks for your post.

I have tried you suggestion, but the <lo_provider> does not get assigned.


    lookup_string = '(SAPLRSBOLAP_BICS_CONSUMER)L_R_DATA_PROVIDER'.
    ASSIGN (lookup_string) to <lookup>.
    IF <lookup> is ASSIGNED.
    lo_obj ?= <lookup>.
    endif.

- Rasmus

Re: Get class/variable from ABAP Callstack.

uwe_schieferstein — Fri, 05 Jun 2009 05:36:24 GMT

Hello Rasmus

Looking at the coding of fm BICS_CONS_EXECUTE_PLANNING_FUN I would say you cannot access L_R_DATA_PROVIDER because it is a local variable.


FUNCTION bics_cons_execute_planning_fun.
*"----------------------------------------------------------------------
*"*"Lokale Schnittstelle:
*"  IMPORTING
*"     VALUE(I_FUNCTION_HANDLE) TYPE  RSBOLAP_HANDLE
*"  EXPORTING
*"     VALUE(E_MAX_MESSAGE_TYPE) TYPE  SYMSGTY
*"     VALUE(E_EXECUTED) TYPE  RS_BOOL
*"     VALUE(E_DATA_AREA_CONTAINS_DATA) TYPE  RS_BOOL
*"  TABLES
*"      E_T_MESSAGE STRUCTURE  BICS_PROV_MESSAGE OPTIONAL
*"      I_T_STATISTIC_INFO STRUCTURE  RSSTA_S_EVENTINPUT OPTIONAL
*"      E_T_OUT_OF_SYNC_DP STRUCTURE  RSBOLAP_S_OBJECT_NAME OPTIONAL
*"  EXCEPTIONS
*"      INVALID_FUNCTION_HANDLE
*"      VARIABLE_INPUT_NECESSARY
*"----------------------------------------------------------------------

* Begin of the rfc function module
  rfc_function_module_start 'BICS_CONS_EXECUTE_PLANNING_FUN' i_function_handle.

  DATA:
    l_r_data_provider         TYPE REF TO if_rsbolap_data_provider,  " <<< local variable
    l_r_function              TYPE REF TO cl_rsplfr_web_start_service,
    l_invalid_function_handle TYPE rs_bool,
    l_s_mesg                  TYPE rrms_s_mesg,
    l_t_mesg                  TYPE rrms_t_mesg,
    l_t_names                 TYPE RSBOLAP_T_OBJECT_NAME,
    l_s_name                  type rsbolap_s_object_name.

* Get the data provider
  l_r_data_provider = 
    cl_rsbolap_application=>get_data_provider_static( i_handle = i_function_handle ).
...

The variable would be accessible if it were global, i.e. defined in the TOP-include.

The main program SAPLRSBOLAP_BICS_CONSUMER does not know anything about local variables within the function modules.

Regards

Uwe

Re: Get class/variable from ABAP Callstack.

Former Member — Mon, 08 Jun 2009 07:35:44 GMT

Of course, you are quite right.

How about the import parameters should I be able to access them.

E.g. I_FUNCTION_HANDLE?

Re: Get class/variable from ABAP Callstack.

naimesh_patel — Mon, 08 Jun 2009 13:33:56 GMT

Yes you can get an access of the importing parameter.

Try like this:


  ld_class = '(SAPLRSBOLAP_BICS_CONSUMER)I_FUNCTION_HANDLE'.
  ASSIGN (ld_class) TO <lo_provider>.

I didn't realize that L_R_PROVIDER is local variable and hence we can't access it. I apologize for that.

Regards,

Naimesh Patel

Re: Get class/variable from ABAP Callstack.

uwe_schieferstein — Mon, 08 Jun 2009 13:48:42 GMT

Hello Rasmus

Most likely the answer is again: NO.

Why?

Looking at the "Attributes" tabstrip of fm BICS_CONS_EXECUTE_PLANNING_FUN you can see that the flag "Global" is NOT set. Thus, the interface parameters are NOT globally visible in the function group.

Regards

Uwe

Re: Get class/variable from ABAP Callstack.

Former Member — Mon, 08 Jun 2009 13:52:10 GMT

Not working with the import parameter aswell.

- Rasmus

Re: Get class/variable from ABAP Callstack.

Former Member — Mon, 08 Jun 2009 13:55:42 GMT

Allright, who said it was going to be easy.

How about line no. 5.

this also holds the information that is need

But now it is a method call in a class.

Is it possible to get this class ?

CL_RSPLFR_WEB_START_SERVICE===CP

And how should it be written?

Re: Get class/variable from ABAP Callstack.

Former Member — Tue, 09 Jun 2009 10:42:45 GMT

The class has a public attribute called n_handle which should reflect the I_FUNCTION_HANDLE from earlier.

I have tried 2 get it but unsuccesfull.

Here is what i have tried.


    lookup_string = '(CL_RSPLFR_WEB_START_SERVICE===CP)N_HANDLE'.
    ASSIGN (lookup_string) to <lookup>.
    lookup_string = '(CL_RSPLFR_WEB_START_SERVICE)N_HANDLE'.
    ASSIGN (lookup_string) to <lookup>.
    lookup_string = '(CL_RSPLFR_WEB_START_SERVICE)IF_RSBOLAP_DATA_PROVIDER~N_HANDLE'.
    ASSIGN (lookup_string) to <lookup>.
    lookup_string = '(CL_RSPLFR_WEB_START_SERVICE===CP)IF_RSBOLAP_DATA_PROVIDER~N_HANDLE'.
    ASSIGN (lookup_string) to <lookup>.

All the time <lookup> does not get assigned. Any ideas ?

Re: Get class/variable from ABAP Callstack.

Former Member — Fri, 31 Jul 2009 08:06:33 GMT

Bump

Re: Get class/variable from ABAP Callstack.

Former Member — Mon, 14 Sep 2009 10:14:00 GMT

Still looking for a solution to this problem.

Re: Get class/variable from ABAP Callstack.

matt — Mon, 14 Sep 2009 11:55:57 GMT

Wow, first posted in June. I admire your persistence.

Unless I've missed something, this seems very straightforward. If n_handle is a public static attribute, you can get it directly, without needing the assign, or accessing the call stack.:

DATA: l_handle TYPE RSBOLAP_HANDLE.

DATA: l_r_data_provider TYPE REF TO if_rsbolap_data_provider

l_handle = CL_RSPLFR_WEB_START_SERVICE=>N_HANDLE. " you don't need the interface qualifier as this attribute is aliased
l_r_data_provider = cl_rsbolap_application=>get_data_provider_static( i_handle = l_handle ).

matt

Re: Get class/variable from ABAP Callstack.

Former Member — Fri, 15 Jan 2010 12:54:49 GMT

The attribute is not a static attribute but an instance variable.

Br Rasmus

Re: Get class/variable from ABAP Callstack.

Former Member — Mon, 25 Jan 2010 15:14:58 GMT

Hello Rasmus,

have you already considered implementing the implicit enhancement point at the beginning of function module BICS_CONS_EXECUTE_PLANNING_FUN? You could write the value of I_FUNCTION_HANDLE to memory and access this value later in your code. If you have the handle, you can call the static method GET_DATA_PROVIDER_STATIC of class CL_RSBOLAP_APPLICATION to receive the desired object instance.

Regards,

David