End to End Development Example in SAP NetWeaver 7.4 & SAP HANA

Transcription

1 End to End Development Example in SAP NetWeaver 7.4 & SAP HANA SAP NetWeaver Developer Experience III Author: Jens Weiler jens.weiler@sap.com Target Audience Developer Consultants For Public usage Document version 1.00 May 9th, 2013

2 Installation Guide: ABAP Development Tools for SAP NetWeaver Contents 1 Remarks before you start The Scenario Description Scenario Procedure Data model SNWD_BPA SNWD_SO_INV_HEAD SNWD_SO_INV_ITEM Full Reference Application Technical Prerequisites Install SAP HANA Studio Only relevant if your HANA Studio version is lower than Install needed Eclipse Plug-Ins Enter system in SAP Logon Adding your system to the ABAP Development Tools Generate Example Data ICF Configuration Customizing for the Scenario Customizing for UI5 & Gateway Services Classical ABAP Implementation ABAP & HANA Implementation SAP HANA Calculation View ABAP External view SAP NetWeaver Gateway Service SAP UI5 Implementation Appendix ADT Shortcuts Edit Help Navigate Run, Debug SAP HANA Development Guide SAP HANA SQL Script Reference Full SQL Script coding of Calculation View BUPA_Figures

3 1 Remarks before you start This demo can be executed on an SAP NetWeaver AS ABAP 7.4 running on a SAP HANA database SPS5 or higher. All screenshots have been made in a AS ABAP System with SID A4H installed in the HANA Database Schema SAPH74. Please consider to adapt this based on the SID and schema of your System. All ABAP Entities have been created in the $TMP Package of the user DEV4CLONE. All HANA Entities have been created in the HANA Package system-local.a4h and the user SYSTEM. You will need users on SAP NetWeaver AS ABAP and SAP HANA. o AS ABAP users need to have at least the following role assigned: SAP_BC_DWB_ABAPDEVELOPER SAP_BC_DWB_WBDISPLAY /IWFND/RT_DEVELOPER (For Gateway Service Development) o HANA User needs the HANA Role ABAP_DEV. The screenshots have been created based on HANA Studio for SAP HANA SPS5 and can differ with respect to other HANA releases. For more details, information and guides based on SAP NetWeaver AS ABAP and SAP HANA please visit our SCN Page: 3

4 Description 2 The Scenario 2.1 Description The scenario you are going to implement is a part of the reference scenario delivered with AS ABAP 7.40 SP2. It will give you an overview about different business figures based on open invoices. Including the average number of days the invoices of a customer are open, the sum of the amount of these open invoices (including currency conversion) and a flag set by customization values to identify critical customers. 2.2 Scenario Procedure 2.3 Data model The data model you will be using consists of 3 tables. Each table has a primary key (datatype GUID) called NODE_KEY together with CLIENT. 4

5 Full Reference Application SNWD_BPA This table contains all relevant data of the business partner for this scenario SNWD_SO_INV_HEAD This is the header table of the invoices containing the BUYER_GUID, which is connected in a 1:1 relation to the SNWD_BPA table SNWD_SO_INV_ITEM The Invoices Item table containing all items of a invoice in different currencies. The PARENT_KEY contains the SNWD_INV_HEAD-NODE_KEY connecting the item and header table with a n:1 relation. 2.4 Full Reference Application The scenario described here is just a part of the full reference application, showing you more details how ABAP on HANA can be leveraged. For more details start Transaction SEPM_OIA in your AS ABAP. 5

6 Install SAP HANA Studio 3 Technical Prerequisites 3.1 Install SAP HANA Studio The HANA Studio Installer is available with your SAP HANA Installation DVD or through the Service Market Place. Please keep in mind to always use the version of the SAP HANA Studio corresponding to the installed version of your SAP HANA Database. HDBSetup.exe can be started with parameters -a studio for installing only the SAP HANA Studio. The HANA version must be least in order to install the following Plug-Ins. Important Remark: If you install your SAP HANA Studio or Eclipse in the Program Files Folder you must always run it with Administrator Privileges. We would advise to not install it under this folder. If your version is or higher you can continue with 3.2 and ignore the next paragraph Only relevant if your HANA Studio version is lower than Please use 2 different Eclipse Installation: The SAP HANA Studio itself as standalone and a separate Eclipse Juno, version 4.2 or higher ( The guide will always show the process only with one eclipse. Please use SAP HANA Studio only for chapters relevant with HANA configuration & development (Eclipse Views Modeler or Administration Console ). 3.2 Install needed Eclipse Plug-Ins 1. Open SAP HANA Studio and in the Help menu open the entry Install new Software 2. Click on Add... to add the needed update Sites for the Plug-Ins. 6

7 Install needed Eclipse Plug-Ins 3. Add the listed updatesite to your Repository. Name SAP DT Tools Location 4. Check the following Plug-Ins according to the screenshot below 7

8 Install needed Eclipse Plug-Ins 5. The next screen shows a summary of Plug-Ins - just click next. 6. Accept the terms of the license agreements and click Finish. 7. Please press OK if one or two Security Warning appears 8. Last step for this chapter is to restart Eclipse if you are asked for. 8

9 3.3 Enter system in SAP Logon To add a ABAP System to the ABAP Development Tools you need to create the entry for your system in the SAP Logon. 1. Open SAP Logon 2. Click New System 3. Add your System and Finish 3.4 Adding your system to the ABAP Development Tools 1. Start SAP HANA Studio and click on Workbench if the overview screen shows up. 9

10 Adding your system to the ABAP Development Tools 2. Add the ABAP Perspective to access your ABAP System. Go to Menu: Window -> Open Perspective -> Other 3. Add the ABAP Perspective to access your ABAP System by first clicking on ABAP and afterwards on the OK Button 10

11 Adding your system to the ABAP Development Tools 4. Now you can add your ABAP System by right clicking in the empty space of the project explorer and choosing New -> ABAP Project in the context menu. 5. In the dialog window please insert the relevant data for your user and click Finish. 6. Your system will now appear in the project explorer. 11

12 Adding your system to the ABAP Development Tools [Optional] Pretty Printer Settings 1. If you want to use PrettyPrinter (Shift + F1). Right Click in the Project Explorer on your newly created system and click on Properties in the context menu. 2. In the Properties Screen select ABAP Development -> Editors -> Source Code Editors -> Formatter and select the Options as shown below 12

13 Generate Example Data 3.5 Generate Example Data 1. If you are not already in the ABAP perspective please switch back to it. 2. Press Run ABAP Development Object Button or press ALT + F8 3. Type in SEPM_DG_OIA and press OK. 13

14 Generate Example Data 4. The transaction will generate the all data necessary to run the described scenario and show you the benefit of the SAP HANA. We recommend you to run the data generation as a background job because it takes a while to generate the data. The values as shown on the screenshot will generate Sales Orders with approximately Items, the according Invoices and the corresponding master data. Feel free to edit the starting and end dates to your choice, but keep the dates in the past to avoid strange results in your implementation. Press F9 to execute the program as a background job or F8 or the execute button to run the program directly (not recommend). 5. If you have chosen wisely to run it as a background job, just continue with the next dialog window... 14

15 Generate Example Data 6. press Immediate button and press the save button afterwards 7. This is now the time to take a break and fetch a coffee or continue with the configuration. 15

16 Generate Example Data 8.. You can check the background job with transaction SM37 9. You should wait until Status becomes Finished before continuing with Chapter 4! 16

17 ICF Configuration 3.6 ICF Configuration For SAP Gateway services, SAP UI5 and ABAP Docu you will need to activate special nodes on the ABAP ICF Server. 1. Press Run ABAP Development Object Button or press ALT + F8 2. Type the transaction SICF and press OK 3. In the opened search screen just press execute 17

18 ICF Configuration 4. Activate the Service for ABAP Docu (sap -> bc ->docu) 5. Repeat it for the UI5 Node (sap -> bc -> ui5_ui5 and press YES (with sub nodes) 6. Finally activate the Gateway node (default_host -> sap -> opu) also with sub nodes 18

19 Customizing for the Scenario 3.7 Customizing for the Scenario The scenario also features a customizing table. To be able to run the scenario a customizing must be entered for your ABAP User. 1. Press Run ABAP Development Object Button or press ALT + F8 2. Open the transaction SEPM_OIA_CUST 19

20 Customizing for the Scenario 3. Switch to edit mode 4. Add a new entry 5. Enter for your user the data as shown below and click Save 20

21 Customizing for the Scenario 6. A dialog window will appear asking for a customizing request. Create a new request 7. add a short description of your choice and click Save. 8. Your new request should be entered in the request dialog. You can now continue. 21

22 Customizing for the Scenario 9. The customizing values are saved and you can close the transaction. 22

23 Customizing for UI5 & Gateway Services 3.8 Customizing for UI5 & Gateway Services Remark: You will be requested for a Customizing transport during the configuration steps. Just use the already created transport from the last step. 1. Press Run ABAP Development Object Button or press ALT + F8. 2. Type the transaction SPRO and press OK. 3. Click on the Button SAP Reference IMG. 4. Open the Folders as shown here 5. Click on Activate or Deactivate SAP NetWeaver Gateway. 6. In the dialog window press activate, 7. Click back in the menu or press F3. 8. Click on Manage SAP System Aliases. 9. In the new screen press New Entries 10. Insert the values as shown below 11. Click back in the menu or press F3. 23

24 Customizing for UI5 & Gateway Services 12. Next steps is Create RFC Destination for Outbound Queues 13. In the configuration screen click create 14. Insert the values as shown below and click the save button 15. Click two times back in the menu or press F Now you need to configure the SAP NetWeaver Gateway Settings. 17. Click New Entries and enter the values. Remark: For Field Destination system use the hostname of your system 18. Click the Save Button 24

25 Customizing for UI5 & Gateway Services 4 Classical ABAP Implementation To give you an overview how this scenario looks like and also show you how it would have been done with classical ABAP without HANA, there is already a Class which calculates all this figures and returns it as internal table. 1. If you are not already in the ABAP perspective please switch back to it. 2. To consume this internal table please create a new ABAP Program in your $TMP package using the context menu in the project explorer on your $TMP Package. 3. In the dialog window use as Name: ZDEV_CLASSICAL_ABAP and type a description. 25

26 Customizing for UI5 & Gateway Services 4. You are creating a local object in the $TMP Package, so there is no need to specify a transport request 5. The class cl_oia_vanilla_abap_prvdr already contains all relevant coding to return the data for this scenario. You just have to consume this class in your report. Feel free to investigate the class, if you are interested in the detailed coding. This will be the coding you are going to push down to HANA. The coding you see below will call the mentioned class and return the value in an ALV grid. Remark: Object Navigation in Eclipse is done by either moving the cursor o the object and press Ctrl + F3 or CTRL + Left Click. Code: Program calling classical ABAP Implementation REPORT ZDEV_CLASSICAL_ABAP. DATA lo_data_provider TYPE REF TO cl_oia_vanilla_abap_prvdr. DATA lo_alv TYPE REF TO cl_salv_table. DATA lo_err TYPE REF TO cx_salv_error. CREATE OBJECT lo_data_provider. DATA(lt_data) = lo_data_provider->read_bupa_figures( ). TRY. cl_salv_table=>factory( IMPORTING r_salv_table = lo_alv CHANGING t_table = lt_data ). lo_alv->display( ). CATCH cx_salv_error INTO lo_err. MESSAGE lo_err TYPE 'I' DISPLAY LIKE 'E'. ENDTRY. 26

27 Customizing for UI5 & Gateway Services 6. Press CTRL + F3 to activate the program and afterwards press the F8 key to run it. The program will take a while to execute. The data is completely raw fetched into ABAP and all calculations are done purely on the ABAP side. So if you are thirsty again -> This is the chance to grab another coffee. The result will look like this, but please keep in mind, that the open days are calculated with your current date will have a higher value. 27

28 SAP HANA Calculation View 5 ABAP & HANA Implementation You have seen the program with the result in ABAP and it took a while to execute. Now you are going to speed this up by pushing the logic in the HANA database and consume the generated HANA view in ABAP. First step is to create a HANA view. 5.1 SAP HANA Calculation View SAP HANA has offers different kind of views for different purpose. For this scenario the calculation view is the view of choice. Remark: A calculation view is used to define more advanced slices on the data in SAP HANA database. Calculation views can be simple and mirror the functionality found in both attribute views and analytic views. However, they are typically used when the business use case requires advanced logic that is not covered in the previous types of information views. For example, calculation views can have layers of calculation logic, can include measures sourced from multiple source tables, can include advanced SQL logic, and so on. The data foundation of the calculation view can include any combination of tables, column views, attribute views and analytic views. You can create joins, unions, projections, and aggregation levels on the sources. 1. Go to menu Window Open Perspective and add the Modeler perspective to your Eclipse 28

29 SAP HANA Calculation View 2. Add the database to the tree on the left side via local menu Add System : 3. Add a new package in the Content -> system-local -> private Folder 29

30 SAP HANA Calculation View 4. Add the Name A4H as seen below and type a description of your choice 5. Add a New Calculation View 30

31 SAP HANA Calculation View 6. In the new dialog window type as Name BUPA_FIGURES, as View Type use SQL Script and as Default Schema the schema of your ABAP System (so called SAP<SID> schema). In our example it is the SAPH74. Remark: The Default mapping will allow you to directly access tables in the View without the need to add their schema in the front. 7. In the newly created View press Script in the scenario pane. 31

32 SAP HANA Calculation View 8. Next step is to add the desired output parameters to the view. For this right click on the Output Pane and in the context menu click on Edit. 9. The Define Output dialog window appears. Here you can add all output attributes of this script. A new row can be added by clicking on +. 32

33 SAP HANA Calculation View 10. Insert the Attributes with the data types as shown below. These are exactly the same attributes as in our ABAP Implementation. 11. Now you have to create the real logic in HANA with SQL Script coding (For more Information see 6.3 SAP HANA SQL Script Reference). The coding will be described in multiple parts to help you understand it better. If you just want to copy and paste the coding you can find it here: 6.4 Full SQL Script coding of Calculation View BUPA_Figures. 12. First part is the Variable definition and variable initialization. Code: Variable Definition /********* Begin Procedure Script ************/ lv_client nvarchar(3); lv_max_sum_gross_amount DECIMAL(15,2) := 0; lv_max_avg_days_open DECIMAL(15,2) := 0; lv_target_currency_code NVARCHAR(5); lc_not_yet_paid nvarchar(1) := ''; 33

34 SAP HANA Calculation View 13. Next part of the coding will read the customizing settings of the scenario into the defined variables. It will also take advantage of existing session variables, which are filled by the AS ABAP. Code: Read Customizing BEGIN -- Read customizing SELECT client, currency_code, max_gross_amount, max_days_open INTO lv_client, lv_target_currency_code, lv_max_sum_gross_amount, lv_max_avg_days_open FROM sepm_oia_cust_t WHERE CLIENT = SESSION_CONTEXT('CLIENT') AND ID = SESSION_CONTEXT('APPLICATIONUSER'); 14. This part will select the Invoices from the table, which are not yet paid in the table lt_invoices. Code: Select Open Invoices -- The open invoices lt_invoices = SELECT inv_head.node_key AS invoice_guid, inv_head.buyer_guid AS bupa_guid, inv_head.gross_amount, inv_head.currency_code FROM snwd_so_inv_head AS inv_head WHERE inv_head.client = :lv_client AND inv_head.payment_status = :lc_not_yet_paid; 15. The next code snippet will take use of CE Functions in HANA and prepare the data for the currency conversion, by selecting the invoice item data, providing the date field of the invoice items in the needed format and joining variables. Code: Select and prepare data for currency conversion -- The invoices with their currency-converted amount lt_invoice_items_unconverted = CE_COLUMN_TABLE(snwd_so_inv_item, [node_key, parent_key, gross_amount, currency_code ]); lt_invoice_items_unconverted1 = CE_PROJECTION(:lt_invoice_items_unconverted, [node_key as item_guid, parent_key as invoice_guid, gross_amount, currency_code, CE_CALC('date(now())', DATE) as today]); lt_invoice_head_created_at = CE_COLUMN_TABLE(snwd_so_inv_head, [client, node_key, payment_status, created_at]); 34

35 SAP HANA Calculation View lt_invoice_head_created_at1 = CE_PROJECTION(:lt_invoice_head_created_at, [client, node_key as invoice_guid, payment_status, created_at], '"CLIENT" = :lv_client AND "PAYMENT_STATUS" = '''''); lt_invoice_items_unconverted_with_date = CE_JOIN(:lt_invoice_items_unconverted1, :lt_invoice_head_created_at1, [invoice_guid]); 16. Now the HANA business function of the currency conversions will be executed on the prepared data and the result will be aggregated into a new table. Code: Execute Currency Conversion lt_invoice_items_converted = CE_CONVERSION(:lt_invoice_items_unconverted_with_date, [family = 'currency', method = 'ERP', steps = 'shift,convert,shift_back', target_unit = :lv_target_currency_code, client = :lv_client, source_unit_column = "CURRENCY_CODE", reference_date_column = "TODAY", output_unit_column = "CURRENCY_CODE_CONV"], [gross_amount]); lt_invoice_head_converted1 = CE_AGGREGATION(:lt_invoice_items_converted, [SUM(gross_amount) AS gross_amount], [currency_code_conv, invoice_guid]); lt_invoice_amount_converted = CE_PROJECTION(:lt_invoice_head_converted1, [invoice_guid AS invoice_guid1, gross_amount, currency_code_conv AS currency_code]); 17. Next Data Selection will calculated the Open Days of the invoices using HANA built in functions to prepare the data in format, that it can be consumed easily and does not need to be transformed anymore. Code: Calculating the Open Days of the invoices and Getting Businesspartner Data -- Invoices with their age lt_invoice_age = SELECT inv_head.node_key AS invoice_guid, inv_head.created_at AS created_at0, to_timestamp(left(inv_head.created_at,14),'yyyymmddhhmiss') AS created_at, days_between(to_timestamp(left(inv_head.created_at,14),'yyyymmddhhmiss'), to_timestamp(localtoutc(now(), 'CET'))) AS days_open, FLOOR(seconds_between(to_timestamp(left(inv_head.created_at,14),'YYYYMMDDHHMISS'), to_timestamp(localtoutc(now(), 'CET')))/(24*60*60)) AS full_days_open FROM snwd_so_inv_head AS inv_head; 35

36 SAP HANA Calculation View -- The business partners lt_bupa = SELECT node_key AS bupa_guid, bp_id AS bupa_id, company_name, 3 AS rank FROM snwd_bpa; 18. Last step is to join all the calculated and filled tables into the desired result, aggregate it and set the reminder flag if the customizing values are exceeded. Code: Calculating the Open Days of the invoices and Getting Business partner Data -- Combine the elements to the result lt_open_items = SELECT inv.invoice_guid, bupa.bupa_id, bupa.company_name, age.full_days_open AS days_open, conv.gross_amount AS gross_amount_converted, conv.currency_code AS currency_code_converted FROM :lt_invoices AS inv JOIN :lt_bupa AS bupa on inv.bupa_guid = bupa.bupa_guid JOIN :lt_invoice_age AS age ON age.invoice_guid = inv.invoice_guid JOIN :lt_invoice_amount_converted AS conv ON conv.invoice_guid1 = inv.invoice_guid; -- Do the aggregation var_out = SELECT bupa_id, company_name, AVG(days_open) AS avg_days_open, currency_code_converted AS currency_code, SUM(gross_amount_converted) AS sum_gross_amount, CASE WHEN SUM(gross_amount_converted) > :lv_max_sum_gross_amount AND AVG(days_open) > :lv_max_avg_days_open THEN 'X' ELSE ' ' END AS customer_tagging FROM :lt_open_items GROUP BY bupa_id, company_name, currency_code_converted; END /********* End Procedure Script ************/ 36

37 SAP HANA Calculation View 19. On the Scenario Pane switch again back to Output. In the Details Pane you will see a new Script View which is showing you the Output of your script. Now add the Output of the script as attributes and measures to the Output of the view, by right clicking each field and clicking Add as <type>. In the picture below the AVG_DAYS_OPEN as Measure. Remark: Attributes and measures form the content data that is used for modeling. While attributes represent the descriptive data like city and country, measures represent quantifiable data like revenue and quantity sold. 20. Repeat this with each field available. See the screeshot below for Type of each field. 21. The Calculation view is now ready to be deployed. First you can validate the view to see if everything works fine. 37

38 SAP HANA Calculation View 22. In the Job Log Tab you see the result of the validation 23. After successful validation, you can now activate the view 24. Again the Job Log will show you the result of your action. 25. You can also get a data preview of your created view, but this will lead to an error because the view uses session variables, that are not populated. If you want to test the view, replace the customizing code block with the following coding and activate the view again. Please keep in mind to revert your change afterwards. Code: Executable Customzing Block on HANA SELECT client, currency_code, max_gross_amount, max_days_open INTO lv_client, lv_target_currency_code, lv_max_sum_gross_amount, lv_max_avg_days_open FROM sepm_oia_cust_t WHERE CLIENT = '001' AND ID = 'DEV4CLONE'; Press Data Preview 38

39 SAP HANA Calculation View Press Raw Data Result 39

40 ABAP External view 5.2 ABAP External view This part will show you how to make the just created Calculation view available in AS ABAP and consume it with Open SQL. 7. If you are not already in the ABAP perspective please switch back to it. 8. First step is to create the DDIC representation of the view. This is entity is called the external view. Right click on your $TMP Package and click Other ABAP Repository Object 40

41 ABAP External view 9. Type view, select the Dictionary View and click Next. 10. In the next Dialog enter as Name for the View ZDEV_BUPA_FIGU_V and a description. Change to External View, in the field HANA View type BU and press CTRL + SPACE. Select your view and click NEXT. 41

42 ABAP External view 11. Again a local object - no transport is required. Click Finish. 12. After the wizard has finished you will get an overview screen showing all Fields of the view and the mapped DDIC Types for the HANA Types of the underlying Calculation View. 13. By clicking the activate button the View is activated and now fully available in ABAP. 14. Now we will consume the view in a program to see how it works to select the data and get the result to the screen. First step is to create a new Program. 15. Name it ZDEV_CALC_VIEW, type a description and click Next. 16. Once more a local object - no transport is required. Click Finish. 42

43 ABAP External view 17. In the code you need to create an internal table based on the data structure of the created view and then you can use well known ABAP Open SQL to consume the data and map it to an ALV Grid. Code: ABAP Program consuming External View REPORT ZDEV_CALC_VIEW. DATA lo_alv TYPE REF TO cl_salv_table. DATA lo_err TYPE REF TO cx_salv_error. DATA lt_data TYPE standard table of zdev_bupa_figu_v. SELECT * FROM zdev_bupa_figu_v INTO TABLE lt_data. TRY. cl_salv_table=>factory( IMPORTING r_salv_table = lo_alv CHANGING t_table = lt_data ). lo_alv->display( ). CATCH cx_salv_error INTO lo_err. MESSAGE lo_err TYPE 'I' DISPLAY LIKE 'E'. ENDTRY. 18. Activate the View and press F8 to execute the Program. 19. Now you can run both reports after each other to feel the different performance. 43

44 SAP NetWeaver Gateway Service 5.3 SAP NetWeaver Gateway Service With the SAP NetWeaver Gateway you can easily create a ODAA Service to expose your data via XML or JSON. This part will show you how to expose the created External View within an ODATA Service. 20. Create a new Project in Eclipse. This is a local folder in which files are stored. 21. A new Dialog window will appear. Use as Project Name My_OData_Model and click Finish. 22. Your new project should appear in the Project Explorer. You now need to create an ODATA Service Model in the project to define your service. Right click on your project and in the context menu select New -> Other. 44

45 SAP NetWeaver Gateway Service 23. SELECT OData Development -> OData Model 24. As Model Name use A4H_DEMO, select Blank Service as Initial model content and click Finish. 45

46 SAP NetWeaver Gateway Service 25. On the right side you see the Palette. Select Entity Type and left click in the grid. A new Entity Type will appear. Name it ZDEV_DEMO_SRV. A Key property with the same name is also generated. 26. Rename the Entity Set to Results by selecting it first and afterwards click it again. You can also use the property tab on the bottom in your Eclipse. Also rename the Key Property to BupaId. 46

47 SAP NetWeaver Gateway Service 27. In the Property tab also change the Max Length of the data type (default Edm.String).to Hover over your Entity Set and a small pane will appear next to it. Click on the add Property Button in it. 29. Add the Properties of these tables and adapt the data type, precision and scale as seen in the this table Property Data Type Max Length Precision Scale BupaId Edm.String 10 CompanyName Edm.String 80 AvgDaysOpen Edm.Int32 CurrencyCode Edm.String 3 SumGrossAmount Edm.Decimal 17 2 CustomerTagging Edm.String 1 47

48 SAP NetWeaver Gateway Service 30. When you are finished the screen should look like this 31. Save your Model l. 32. The next step is to export your modeled EntitySet and import it into the ABAP Gateway Service. Right click on your A4H_Demo File in the Project Explorer and choose Export. 48

49 SAP NetWeaver Gateway Service 33. In the dialog window select OData Develpopment->OData Model and click Next. 49

50 SAP NetWeaver Gateway Service 34. In the Export As filed specify a folder of your choice, name the file A4HDemo.xml and click Finish. 35. Press Run ABAP Development Object Button or press ALT + F Type SEGW. This is the main transaction for SAP NetWeaver Gateway. 37. Click on New and as Project is ZDEV_DEMO_SRV, as Generation Strategy Standard and click on Local Object. 38. Your Project is created. Now you can import your created Model by using the context menu on on Data Model and then click Data Model from File. 50

51 SAP NetWeaver Gateway Service 39. Choose the folder and file you gave exported in step

52 SAP NetWeaver Gateway Service 40. The model is now imported successful. 41. In the Entity Sets Folder, click on Results and remove the flag for requires filter. 42. Now you can generate the Runtime Objects of the Service. In the top menu click. 52

53 SAP NetWeaver Gateway Service 43. Keep the suggested names and continue. 44. Click Local Object 45. In the message tab you will get the information about the status of the generation. 53

54 SAP NetWeaver Gateway Service 46. Next step is to register the service to the ICF. Use the tree on the left and double click on Service Maintenance and afterwards on register. 47. You can continue with the warning message by clicking on Yes. 48. Next step is specifying a system alias where the service should be deployed. The service should run on our system, so you can type LOCAL. 49. In the new dialog click on LOCAL button and continue. The service is now registered and activated in the ICF. 54

55 SAP NetWeaver Gateway Service 50. Final Step is to do the Service Implementation. The Gateway framework will initially call the GetEntitySet Method to retrieve the data. To implement this right click on GetEntitySet (Query) and Click Go to ABAP Workbench. 51. In the definition of the class redefine the method results_get_entityset Code: Definition of Service Provider Class for GatewaySerive CLASS zcl_zdev_demo_srv_dpc_ext DEFINITION PUBLIC INHERITING FROM zcl_zdev_demo_srv_dpc CREATE PUBLIC. PUBLIC SECTION. PROTECTED SECTION. METHODS results_get_entityset REDEFINITION. PRIVATE SECTION. ENDCLASS. 55

56 SAP NetWeaver Gateway Service 52. The Implementation is simple. Select the data from your external view into the exporting internal table of the generated gateway service implementation and you are done. Code: Definition of Service Provider Class for Gateway Service CLASS ZCL_ZDEV_DEMO_SRV_DPC_EXT IMPLEMENTATION. METHOD results_get_entityset. CLEAR: es_response_context, et_entityset. TRY. SELECT bupa_id AS bupaid company_name AS companyname avg_days_open AS avgdaysopen currency_code AS currencycode sum_gross_amount AS sumgrossamount customer_tagging AS customertagging FROM zdev_bupa_figu_v INTO CORRESPONDING FIELDS OF TABLE et_entityset. CATCH cx_oia_data_provider INTO DATA(lo_cx). RAISE EXCEPTION TYPE /iwbep/cx_mgw_tech_exception EXPORTING previous = lo_cx. ENDTRY. ENDMETHOD. ENDCLASS. 53. Save and activate the implementation. 54. The service is no ready. In the next step you will test the service. Press Run ABAP Development Object Button or press ALT + F Type SICF to get to the ICF Transaction. Here you can directly test the Service. 56. In the field Service Name type OPU and click on Execute int the selection screen 56

57 SAP NetWeaver Gateway Service 57. Goto default_host -> sap -> opu -> odata ->sap and right click zde_demo_srv_srv 58. In the context menu click test service In the Message screen allow the access to this file. The ODATA Meta.xml should appear in the browser. Remark: Internet Explorer might have some problems with the document type and will try to download it. If his is the case, you can open it with a XML Editor or the notepad to see the Document. 59. If you want to see the data results, add to the URL of the service in the browser <yourserver:yourport>/sap/opu/odata/sap/zdev_demo_srv_srv/results?sapclient=<yourclient> 57

58 SAP UI5 Implementation 5.4 SAP UI5 Implementation Last part of this guide will show you how to model a SAP UI5 Page consuming the created ODATA Service and showing the result on your browser. 1. Open the context menu in the Project Explorer Tab of your Eclipse and click New Project 2. Type in a project name, choose HTML5 and click next. 58

59 SAP UI5 Implementation 3. In the next screen choose List/Details Application (SAPUI5) 4. The next dialog is to select the Gateway Service for your Project. Click on Catalog 59

60 SAP UI5 Implementation 5. In the new dialog window click on Manage Connections and in the next window on Add. 6. Type in a Name for your connection and fill the Fields with the server details of your AS ABAP ICF and your current development user. Press OK when you are finished. 7. Select the Name of your Connection, choose the Service ZDEV_DEMO_SRV_SRV and press OK again. 60

61 SAP UI5 Implementation 8. Click on Finish 9. Type view Title MyResult and click the right + to add Fields. 61

62 SAP UI5 Implementation 10. Select all Fields and click OK 11. If you like you can sort the fields as you want them to appear. If you are ready you can click Finish and your Project is ready on your local drive. 62

63 SAP UI5 Implementation 12. Next step is to connect the local Project to your AS ABAP. In the Project Explorer richt click on the Team->Share Project entry. 13. In the dialog window click on SAPUI8 ABAP Repository 63

64 SAP UI5 Implementation 14. Specify your ABAP System and type your user name & password 64

65 SAP UI5 Implementation 15. Choose Create a new BSP Application, specify the data as shown on the screen and click Next. Remark: This is no BSP Application. Just the repository of the BSP is used to store your UI5 Application. It is not possible to use BSP in it. 65

66 SAP UI5 Implementation 16. You have connected your local development to the BSP Repository. Click Finish. 17. The last step is to submit the local project to the ABAP Repository. Right click your project and click Team -> Submit 18. Click on Select all and Finish 66

67 SAP UI5 Implementation 19. Finally to open the webpage press Run ABAP Development Object Button or press ALT + F8 20. Type the transaction SICF and press OK 21. Service Name ui5_ui5 and Execute (F8). 22. Navigate to default_host -> sap-> bc -> ui5_ui5 -> sap -> ZDEV_UI5_EXP and right click -> test Service. 67

68 SAP UI5 Implementation 23. Your SAPUI5 page is displayed in the browser and should look like this congratulations! Thanks a lot for trying out our E2E guide. We hope you enjoyed implementing it and we could give you a small insight in the power of SAP NetWeaver 7.4 combined with SAP HANA. And of course feedback is highly appreciated. 68

69 ADT Shortcuts 6 Appendix 6.1 ADT Shortcuts Edit Ctrl+Shift+A Open development object Ctrl+F2 Check development object Ctrl+F3 Activate development object Ctrl+Shift+F3 Activate all inactive objects Ctrl+Space Code completion Ctrl+1 Quick fix proposal Ctrl+< Add comment Ctrl+Shift+< Remove comment Shift+F1 Format source aka pretty printer Help F1 ABAP keyword documentation F2 Show code element information Ctrl+3 Search for commands & views Ctrl+Shift+L List all keyboard shortcuts Navigate F3 Open definition Alt+Left Backward history Alt+Right Forward history Ctrl+T Quick hierarchy F4 Open Type Hierarchy Ctrl+O Quick outline Ctrl+Shift+G Where-used list Run, Debug F8 Run current ABAP object Alt+F8 Select & run ABAP application Ctrl+Shift+B Toggle breakpoint F5, F6, F7, F8 Step into, over, return, resume 69

70 SAP HANA Development Guide 6.2 SAP HANA Development Guide SAP HANA SQL Script Reference Full SQL Script coding of Calculation View BUPA_Figures /********* Begin Procedure Script ************/ -- Variable Definition lv_client nvarchar(3); lv_max_sum_gross_amount DECIMAL(15,2) := 0; lv_max_avg_days_open DECIMAL(15,2) := 0; lv_target_currency_code NVARCHAR(5); lc_not_yet_paid nvarchar(1) := ''; BEGIN -- Read customizing SELECT client, currency_code, max_gross_amount, max_days_open INTO lv_client, lv_target_currency_code, lv_max_sum_gross_amount, lv_max_avg_days_open FROM sepm_oia_cust_t WHERE CLIENT = SESSION_CONTEXT('CLIENT') AND ID = SESSION_CONTEXT('APPLICATIONUSER'); -- SELECT client, currency_code, max_gross_amount, max_days_open -- INTO lv_client, lv_target_currency_code, lv_max_sum_gross_amount, lv_max_avg_days_open -- FROM sepm_oia_cust_t -- WHERE CLIENT = '001' -- AND ID = 'DEV4CLONE'; -- The open invoices lt_invoices = SELECT inv_head.node_key AS invoice_guid, inv_head.buyer_guid AS bupa_guid, inv_head.gross_amount, inv_head.currency_code FROM snwd_so_inv_head AS inv_head WHERE inv_head.client = :lv_client AND inv_head.payment_status = :lc_not_yet_paid; -- The invoices with their currency-converted amount lt_invoice_items_unconverted = CE_COLUMN_TABLE(snwd_so_inv_item, [node_key, parent_key, gross_amount, currency_code ]); lt_invoice_items_unconverted1 = CE_PROJECTION(:lt_invoice_items_unconverted, [node_key as item_guid, parent_key as invoice_guid, gross_amount, currency_code, CE_CALC('date(now())', DATE) as today]); lt_invoice_head_created_at = CE_COLUMN_TABLE(snwd_so_inv_head, 70

71 Full SQL Script coding of Calculation View BUPA_Figures [client, node_key, payment_status, created_at]); lt_invoice_head_created_at1 = CE_PROJECTION(:lt_invoice_head_created_at, [client, node_key as invoice_guid, payment_status, created_at], '"CLIENT" = :lv_client AND "PAYMENT_STATUS" = '''''); lt_invoice_items_unconverted_with_date = CE_JOIN(:lt_invoice_items_unconverted1, :lt_invoice_head_created_at1, [invoice_guid]); lt_invoice_items_converted = CE_CONVERSION(:lt_invoice_items_unconverted_with_date, [family = 'currency', method = 'ERP', steps = 'shift,convert,shift_back', target_unit = :lv_target_currency_code, client = :lv_client, source_unit_column = "CURRENCY_CODE", reference_date_column = "TODAY", output_unit_column = "CURRENCY_CODE_CONV"], [gross_amount]); lt_invoice_head_converted1 = CE_AGGREGATION(:lt_invoice_items_converted, [SUM(gross_amount) AS gross_amount], [currency_code_conv, invoice_guid]); lt_invoice_amount_converted = CE_PROJECTION(:lt_invoice_head_converted1, [invoice_guid AS invoice_guid1, gross_amount, currency_code_conv AS currency_code]); -- Invoices with their age lt_invoice_age = SELECT inv_head.node_key AS invoice_guid, inv_head.created_at AS created_at0, to_timestamp(left(inv_head.created_at,14),'yyyymmddhhmiss') AS created_at, days_between(to_timestamp(left(inv_head.created_at,14),'yyyymmddhhmiss'), to_timestamp(localtoutc(now(), 'CET'))) AS days_open, FLOOR(seconds_between(to_timestamp(left(inv_head.created_at,14), 'YYYYMMDDHHMISS'), to_timestamp(localtoutc(now(), 'CET')))/(24*60*60)) AS full_days_open FROM snwd_so_inv_head AS inv_head; -- The business partners lt_bupa = SELECT node_key AS bupa_guid, bp_id AS bupa_id, company_name, 3 AS rank FROM snwd_bpa; -- Combine the elements to the result lt_open_items = SELECT inv.invoice_guid, bupa.bupa_id, bupa.company_name, 71

72 Full SQL Script coding of Calculation View BUPA_Figures age.full_days_open AS days_open, conv.gross_amount AS gross_amount_converted, conv.currency_code AS currency_code_converted FROM :lt_invoices AS inv JOIN :lt_bupa AS bupa on inv.bupa_guid = bupa.bupa_guid JOIN :lt_invoice_age AS age ON age.invoice_guid = inv.invoice_guid JOIN :lt_invoice_amount_converted AS conv ON conv.invoice_guid1 = inv.invoice_guid; -- Do the aggregation var_out = SELECT bupa_id, company_name, AVG(days_open) AS avg_days_open, currency_code_converted AS currency_code, SUM(gross_amount_converted) AS sum_gross_amount, CASE WHEN SUM(gross_amount_converted) > :lv_max_sum_gross_amount AND AVG(days_open) > :lv_max_avg_days_open THEN 'X' ELSE ' ' END AS customer_tagging FROM :lt_open_items GROUP BY bupa_id, company_name, currency_code_converted; END /********* End Procedure Script ************/ 72

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