Technical trace

[Former Member]

Hi again,

Maybe this is just a basic question, is the technical trace only available for the simulation tool?

Is there any way to activate it temporally, I am saying this because in the simulation mode I am not able to load the test data (due to the function signature) and I have to add it manually which is very time consuming. If is possible, could you provide me some details on how to activate it?

Regards,

M.

[ttrapp · Accepted solution]

The trace mode can be defined when calling the function from ABAP:

          lr_function->process( EXPORTING io_context = lr_context
                                          iv_trace_mode = if_fdt_constants=>gc_trace_mode_technical                                           iv_timestamp  = lv_timestamp
                                IMPORTING eo_result  = lr_result
                                          eo_trace   = lr_trace ).

You can get the result back as XML:
          lr_trace->read( IMPORTING ev_trace = e_xml_trace ).

You can even start to think of converting the XML document to HTML or TEXT using an XSL Transformation (CALL TRANSFORMATIO command):

<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:sap="http://www.sap.com/sapxsl" xmlns:asx="http://www.sap.com/abapxml" version="1.0">

  <xsl:strip-space elements="*"/>
  <xsl:template match="/">
    <asx:abap>
      <asx:values>
        <ROOT>
          <xsl:apply-templates/>
        </ROOT>
      </asx:values>
    </asx:abap>
  </xsl:template>

  <xsl:template match="/FDT/LOG/TEXT">
    <item>
      <xsl:value-of select="string(.)"/>
     </item>
     <xsl:apply-templates/>
  </xsl:template>


  <xsl:template match="/FDT/LOG/CONTEXT_UPDATE">
    <item>
      <xsl:value-of select="concat(string(@DataObjectName), ' is assigned to ' , string(text()))"/>
     </item>
     <xsl:apply-templates/>
  </xsl:template>

  <xsl:template match="text() | @*">
  </xsl:template>

</xsl:transform>

The logs can also be stored the DB. Please be aware that the persistance of those Messages has been optimized.

BR Tobias

[Former Member · Accepted solution]

Hi Tobias,

Sorry my ABAP ignorance, how should the lr_result

be defined?

For example:

DATA: lt_name_value  TYPE

abap_parmbind_tab,

lv_function_id TYPE  if_fdt_types=>id,
lo_trace_plus  TYPE REF TO   if_fdt_trace,

lv_timestamp   TYPE

timestamp.

"Trace active

          MOVE abap_true TO lv_trace_gen.

          CALL METHOD cl_fdt_function_process=>process

            EXPORTING

              iv_function_id = lv_function_id

              iv_timestamp   = lv_timestamp

              iv_trace_mode  = if_fdt_constants=>gc_trace_mode_technical

            IMPORTING

              eo_trace       = lo_trace_plus

     eo_result  = lr_result

            CHANGING

              ct_name_value  = lt_name_value.

Many thanks,

Mario

[ttrapp · Accepted solution]

You should have a look at the API for a function call. The call of a function is described here the method IF_FDT_FUNCTION~PROCESS.

So le_result has to be defined as follows: DATA lr_result TYPE REF TO  if_fdt_result.

BR

Tobias

[carsten_ziegler]

I recently published a document on this very question.
Please take a look at Tracing in SAP Decision Service Management.