Introduction

This plugin would allow SAP ECC enterprise users to specify one of the Inventory Management data sources as source in Cloud Data Fusion. Typical pipeline scenario would include specifying one of the data sources as source (under Sources plugins) and BigQuery as sink. For the sake of simplicity, this document will cover one data source (Material Movements from Inventory Management - 2LIS_03_BF).

User Experience and Configuration

• SAP ECC Setup

1. SAP ECC users log into SAP Gateway Service Builder (segw) to create and expose the data source as SAP OData service. SAP has published following articles around this step:

1. OData service introduction 

2. Step-by-step guide to build OData service

2. User creates OData service for the data source (2LIS_03_BF). Output is RESTful OData service that can be accessed by Cloud Data Fusion.

3. User can also use SAP Netweaver Gateway client to test the service (with HTTP request and response)

...

• Data type mismatch - OData output has data types (section 6) different than the data types available in BigQuery. Some sort of data type conversion needs to happen before the extracted data can be ingested into BigQuery. Below is the suggested mapping of OData data types to CDAP schema data types:

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For more examples, please, refer: https://www.odata.org/odata-services/

SAP ECC Source Plugin

Source Properties

...

User Facing Name

...

Widget Type

...

Description

...

Constraints

...

URL of the SAP ECC OData service. The URL must end with an external service name

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Design

The suggestion is to use Apache Olingo as Client Library.

public class OlingoSampleApp {
  
  private static final String ROOT_URL = "http://vhcalnplci.dummy.nodomain:8000/sap/opu/odata/

...

SAP/

...

ZGW100_

...

XX_

...

S2_

...

Required

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Path of the SAP ECC OData entity.

For example:

• "SalesOrderCollection"
• "Category(1)/Products"

Required

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OData query options to filter the data.

For example: "$select=Name,Description&$top=10".

The plugin copies data from the combined URL:
<OData Service URL>/<Entity Set>?<Query>

For more information, see OData URL components.

...

SRV/";
  private static final String USERNAME = "DEVELOPER";
  private static final String PASSWORD = "Appl1ance";
  private static final String RESOURCE_PATH = "SalesOrderCollection";

  public static void main(String[] params) throws Exception {

    ODataClient client = ODataClientFactory.getClient();
    client.getConfiguration().setHttpClientFactory(new BasicAuthHttpClientFactory(USERNAME, PASSWORD));
    
    URI resourcesUri = client.newURIBuilder(ROOT_URL)
      .appendEntitySetSegment(RESOURCE_PATH)
      .build();
    
    ODataEntitySetIteratorRequest<ClientEntitySet, ClientEntity> request = client
      .getRetrieveRequestFactory()
      .getEntitySetIteratorRequest(resourcesUri);
    request.setAccept("application/atom+xml");

    ODataRetrieveResponse<ClientEntitySetIterator<ClientEntitySet, ClientEntity>> response  = request.execute();
    ClientEntitySetIterator<ClientEntitySet, ClientEntity> iterator = response.getBody();

    while (iterator.hasNext()) {
      ClientEntity entity = iterator.next();
      // process client entity
    }
  }
}

Source Properties

Source Data Types Mapping

Types can be mapped as follows, according to the org.apache.olingo.commons.api.edm.EdmPrimitiveType

References

• OData service

• Generic OData overview

• Building New OData services

• SAP Netweaver Gateway

• Overview - https://blogs.sap.com/2013/01/24/a-simple-overview-on-sap-netweaver-gateway/

• SAP Netweaver Gtw and OData Tutorials: https://sapyard.com/tutorials-on-odata-sap-netweaver-gateway/ 

• Microsoft Data Factory - SAP ECC Connector

• Microsoft Data Factory - ECC Connector

• Step-by-step guide to setup SAP ECC as source in Azure Data Factory

Plugin Type

•  Batch Source
•  Batch Sink 
•  Real-time Source
•  Real-time Sink
•  Action
•  Post-Run Action
•  Aggregate
•  Join
•  Spark Model
•  Spark Compute

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