SAP Integration

Systems, Applications, and Products (SAP) for data processing is an industry leading enterprise software solution that is widely used among product and process oriented enterprises for finance, operations, HR and many other aspects of a business. SAP ERP solutions provide reliable and efficient platforms to build and integrate enterprise or business-wide data and information systems with ease. 

WSO2 ESB leverages the best of both worlds by providing the integration layer so that an existing SAP R/3 based solutions of an enterprise can be integrated with other data/business oriented systems so that you can mix-and-match requirements with minimal effort. As a result, enterprises can keep parts of their systems independent of SAP and extensible for many other systems, solutions and middleware.

The WSO2 SAP adapter is shipped with WSO2 ESB and is implemented as a transport for WSO2 ESB. This is provided in the <ESB_HOME>/repository/components/plugins directory asorg.wso2.carbon.transports.sap-VERSION.jar (e.g. org.wso2.carbon.transports.sap_1.0.0.jar).

The WSO2 SAP adapter has full IDoc and experimental BAPI support. It uses the SAP JCO library as the underlying framework to communicate with SAP.  This section describes how to set up WSO2 ESB in a SAP environment, how to install the SAP JCo middleware library, SAP Intermediate Document (IDoc) and Business Application Programming Interface (BAPI) adapters.

Follow the instructions below to install and set up the ESB SAP adapter.

1. Download and install WSO2 ESB by following the instruction in Installation Guide.

2. Download the sapidoc3.jar and sapjco3.jar middleware libraries from the SAP support portal and copy those libraries to the <ESB_HOME>/repository/components/lib directory.

3. Download the native SAP JCo library and copy it to the system path. You need to select the system path applicable to your operating system as described below.

4. Create a directory named sap in the <ESB_HOME>/repository/conf/ directory and provide access rights to read the properties files you will save in it later.

5. Copy the following SAP endpoint properties files to the <ESB_HOME>/repository/conf/sap directory. You need to have two properties files, one at the server-end and the other at the client-end to communicate with an external SAP endpoint using IDoc or BAPI.

   • *.dest : This is where we store SAP endpoint parameters when WSO2 ESB is configured as a client to an external SAP endpoint.  

   • *.server : This is where we store SAP endpoint parameters when WSO2 ESB is configured as a server to an external SAP endpoint.

   For details on creating the properties files and defining the relevant properties, see Setting up the Client Configuration File and Setting up the Server Configuration File.

6. Start the ESB using the -Djava.library.path switch to specify the location of your SAP jco library. 
   For example ./wso2server.sh -Djava.library.path=/usr/lib/jvm/jre1.7.0/lib/i386/server/ 
   
   

To setup WSO2 ESB as a client to a SAP system you need to create the *.dest properties file and define the relevant properties. The following table lists the properties and the description of each property that should be specified in the *.dest properties file.