Friday 10 January 2020

Object Oriented way of sending an email with PDF as an attachment

Introduction


In this blog post too, you will learn how to send an email using object oriented way, but with a PDF as an attachment. The PDF in this case will  generated by a SMARTFORM.

Prerequisite


A Smartform – It can be a basic smartform with a short text, we just need it for display purpose.
Basic knowledge of using class CL_BCS for email sending.
A trigger program.

Steps


Create a Smartform with any Z/Y name.


I created with the name “ZTEST_SMARTFORM_ATTACHMENT”. It actually just have a short text as below:

SAP ABAP Development, SAP ABAP Tutorial and Material, SAP ABAP Certification, SAP ABAP Online Exam, SAP ABAP Prep

Create an executable program in SE38.


I created it with the name “ZTEST_EMAIL_WITH_ATTACHMENT”.

DATA DECLARATIONS


(Please excuse for the naming convention used)

CONSTANTS:
lc_sfname TYPE tdsfname VALUE 'ZTEST_SMARTFORM_ATTACHMENT'. "Name of Smartform

"Local Object References
DATA: lo_bcs         TYPE REF TO cl_bcs,
      lo_doc_bcs     TYPE REF TO cl_document_bcs,
      lo_recep       TYPE REF TO if_recipient_bcs,
      lo_sapuser_bcs TYPE REF TO cl_sapuser_bcs,
      lo_cx_bcx      TYPE REF TO cx_bcs.

"Local Internal Tables.
DATA: lt_otfdata        TYPE ssfcrescl,
      lt_binary_content TYPE solix_tab,
      lt_text           TYPE bcsy_text,
      lt_pdf_tab TYPE STANDARD TABLE OF tline,
      lt_otf     TYPE STANDARD TABLE OF itcoo.

"Local Structures
DATA: ls_ctrlop TYPE ssfctrlop,
      ls_outopt TYPE ssfcompop.

"Local Variables
DATA: lv_bin_filesize TYPE so_obj_len,
      lv_sent_to_all  TYPE os_boolean,
      lv_bin_xstr     TYPE xstring,
      lv_fname        TYPE rs38l_fnam,
      lv_string_text  TYPE string.

Get the name of the function module of the SMARTFORM .


CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'
  EXPORTING
    formname           = lc_sfname
  IMPORTING
    fm_name            = lv_fname
  EXCEPTIONS
    no_form            = 1
    no_function_module = 2
    OTHERS             = 3.
IF sy-subrc <> 0.
  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
          WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.

Fill the Control Parameters, output options and call the FM of your SMARTFORM.


We will get the OTF data generated by the smartform in internal table “lt_otf”.

"Control Parameters
ls_ctrlop-getotf    = 'X'.
ls_ctrlop-no_dialog = 'X'.
ls_ctrlop-preview   = space.

"Output Options
ls_outopt-tdnoprev  = 'X'.
ls_outopt-tddest    = 'LOCL'.
ls_outopt-tdnoprint = 'X'.    "No printing from print preview

CALL FUNCTION lv_fname
  EXPORTING
    control_parameters = ls_ctrlop
    output_options     = ls_outopt
  IMPORTING
    job_output_info    = lt_otfdata
  EXCEPTIONS
    formatting_error   = 1
    internal_error     = 2
    send_error         = 3
    user_canceled      = 4
    OTHERS             = 5.
IF sy-subrc <> 0.
  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
          WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.

lt_otf[] = lt_otfdata-otfdata[].

Convert OTF Data to XSTRING “lv_bin_xstr”.


CALL FUNCTION 'CONVERT_OTF'
  EXPORTING
    format                = 'PDF'   "PDF to get pdf output
  IMPORTING
    bin_filesize          = lv_bin_filesize
    bin_file              = lv_bin_xstr
  TABLES
    otf                   = lt_otf[]
    lines                 = lt_pdf_tab[]
  EXCEPTIONS
    err_max_linewidth     = 1
    err_format            = 2
    err_conv_not_possible = 3
    OTHERS                = 4.
IF sy-subrc <> 0.
  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
          WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.

Convert the XSTRING to Binary table “lt_binary_content”.


***Xstring to binary
CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
  EXPORTING
    buffer     = lv_bin_xstr
  TABLES
    binary_tab = lt_binary_content.

Prepare to Send Email


Create persistent send request


TRY.
*     -------- create persistent send request ------------------------
    lo_bcs = cl_bcs=>create_persistent( ).

Create Email Body


    "Line-1
    CONCATENATE 'Dear Colleague' cl_abap_char_utilities=>newline INTO lv_string_text.
    APPEND lv_string_text TO lt_text.
    CLEAR lv_string_text.
    "Line-2
    CONCATENATE 'Please find attached a test smartform.'
     cl_abap_char_utilities=>newline INTO lv_string_text.
    APPEND lv_string_text TO lt_text.
    CLEAR lv_string_text.
    "Line-3
    APPEND 'Best Regards,' TO lt_text.
    "Line-4
    APPEND 'Systems Administrator.' TO lt_text.

Create Email


*---------------------------------------------------------------------
*-----------------&      Create Document     *------------------------
*---------------------------------------------------------------------
    lo_doc_bcs = cl_document_bcs=>create_document(
                    i_type    = 'RAW'
                    i_text    = lt_text[]
                    i_length  = '12'
                    i_subject = 'Test Email' ).   "Subject of the Email

Add attachment to document and Add document to send request


The internal table “lt_binary_content” contains the content of our attachment.

*---------------------------------------------------------------------
*-----------------&   Add attachment to document     *----------------
*---------------------------------------------------------------------
*     BCS expects document content here e.g. from document upload
*     binary_content = ...
    CALL METHOD lo_doc_bcs->add_attachment
      EXPORTING
        i_attachment_type    = 'PDF'
        i_attachment_size    = lv_bin_filesize
        i_attachment_subject = 'Test Email'
        i_att_content_hex    = lt_binary_content.

*     add document to send request
    CALL METHOD lo_bcs->set_document( lo_doc_bcs ).

Set Sender


Note: this is necessary only if you want to set the sender different from actual user (SY-UNAME). Otherwise sender is set automatically with actual user.
FYI. I have commented the code in my program.

*---------------------------------------------------------------------
*------------------------&   Set Sender     *-------------------------
*---------------------------------------------------------------------
*    lo_sapuser_bcs = cl_sapuser_bcs=>create( sy-uname ).
*    CALL METHOD lo_bcs->set_sender
*      EXPORTING
*        i_sender = lo_sapuser_bcs.

Add recipient (e–mail address)


You can use multiple recipients as well.

    lo_recep = cl_cam_address_bcs=>create_internet_address(
                                                'test@test123.com' ).

"Add recipient with its respective attributes to send request
    CALL METHOD lo_bcs->add_recipient
      EXPORTING
        i_recipient = lo_recep
        i_express   = 'X'.

Set Send Immediately


You can set this to send  your email immediately.

CALL METHOD lo_bcs->set_send_immediately
      EXPORTING
        i_send_immediately = 'X'.

Send the Email


*---------------------------------------------------------------------
*-----------------&   Send the email    *-----------------------------
*---------------------------------------------------------------------
    CALL METHOD lo_bcs->send(
      EXPORTING
        i_with_error_screen = 'X'
      RECEIVING
        result              = lv_sent_to_all ).

    IF lv_sent_to_all IS NOT INITIAL.
      COMMIT WORK.
    ENDIF.


*---------------------------------------------------------------------
*-----------------&   Exception Handling     *------------------------
*---------------------------------------------------------------------
  CATCH cx_bcs INTO lo_cx_bcx.
    "Appropriate Exception Handling
    WRITE: 'Exception:', lo_cx_bcx->error_type.
ENDTRY.

Results


If you will execute the above program and see the result in transaction SOST, the email will look like below:

SAP ABAP Development, SAP ABAP Tutorial and Material, SAP ABAP Certification, SAP ABAP Online Exam, SAP ABAP Prep

You can see the email body as below and you can find the attached document in the Attachments tab

SAP ABAP Development, SAP ABAP Tutorial and Material, SAP ABAP Certification, SAP ABAP Online Exam, SAP ABAP Prep

SAP ABAP Development, SAP ABAP Tutorial and Material, SAP ABAP Certification, SAP ABAP Online Exam, SAP ABAP Prep

If you will open the PDF document, the document looks like below:

SAP ABAP Development, SAP ABAP Tutorial and Material, SAP ABAP Certification, SAP ABAP Online Exam, SAP ABAP Prep

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