Consuming SAP Netweaver BRM Rules Web Service in ABAP - Part 2

[bv_pillai]

This blog is a continuation of my previous blog (Generate and Test your SAP Netweaver BRM Rules Web Service – Part 1).  In this blog I will be describing about how to consume the SAP Netweaver BRM Rules Web Service in ABAP. The ideal way of consuming the BRM rules in ABAP is using the Business Rule Framework (BRF – formerly known as FDT (Formula Derivation Tool). SAP is also delivering a new tool in the EhP1 of NW 7.0 named as ‘BRFPlus’ with most of the concepts from BRF (FDT) and ABAP Webdynpro UI for defining the Ruleset, Decision Table etc. like the one in Rule Composer ( SAP NetWeaver Developer Studio 7.1 EhP1 ).

To know more about the ‘BRFPlus’ read the blog from carsten.ziegler/blog.

Step  1 : Creating Client Proxy

As a first step, I will be creating a client proxy from SE80 (ABAP Workbench) by specifying the credit card web service WSDL URL

Upon the completion of the wizard, system will generate the ABAP proxy class.

Step  2 : Configure the Logical Port

As a next step, you can configure the logical port for the generated proxy class using either the ‘SOAMANAGER’ or “LPCONFIG’.

Launch the transaction ‘LPCONFIG’ to create the logical port

In General Settings, maintain binding URL from WSDL in the ‘Call Parameters’ Tab

Save and activate the logical port.

Step  3 : Creating an ABAP client program for testing the web service rule

 

As a next step, now you can create an ABAP client program using the generated proxy class as shown below: 

REPORT  ZTEST_RULE. DATA: OBJ1 TYPE REF TO ZRUCO_CREDITCARD_APPROVAL_RULE . PARAMETER: P_NAME TYPE STRING,            P_AGE  TYPE STRING,            P_AINC TYPE STRING,            P_TAST TYPE STRING,            P_CTYPE  TYPE YCREDIT_CHECK-CARD_TYPE,            P_CHIST  TYPE YCREDIT_CHECK-CREDIT_HISTORY.  TRY.     CREATE OBJECT OBJ1 *  EXPORTING *    LOGICAL_PORT_NAME  =         .   CATCH CX_AI_SYSTEM_FAULT . ENDTRY. data: INPUT  type  ZRURULE_REQUEST . data: OUTPUT type  ZRURULE_REQUEST_RESPONSE . INPUT-INPUT_PART-APPLICANT_NAME = P_NAME. INPUT-INPUT_PART-APPLICANT_AGE  = P_AGE. INPUT-INPUT_PART-ANNUAL_INCOME  = P_AINC. INPUT-INPUT_PART-TOTAL_ASSETS   = P_TAST. INPUT-INPUT_PART-CARD_TYPE      = P_CTYPE. INPUT-INPUT_PART-CREDIT_HISTORY = P_CHIST. TRY.     CALL METHOD OBJ1->INVOKE_RULE       EXPORTING         INPUT_PART  = INPUT       IMPORTING         OUTPUT_PART = OUTPUT.   CATCH CX_AI_SYSTEM_FAULT .   CATCH CX_AI_APPLICATION_FAULT . ENDTRY. WRITE: / P_NAME OUTPUT-OUTPUT_PART-ELIGIBILITY.

Step 4 : Testing ABAP Client Program

As a last step, you can now test the client program by providing the input values and executing it.